Patent Publication Number: US-10788965-B2

Title: Device, method, and graphical user interface for manipulating user interface objects

Description:
RELATED APPLICATIONS 
     This application is a continuation of U.S. patent application Ser. No. 16/403,184, “Device, Method, and Graphical User Interface for Manipulating User Interface Objects,” filed May 3, 2019, now U.S. Pat. No. 10,564,826, which is a continuation of U.S. patent application Ser. No. 15/088,450, “Device, Method, and Graphical User Interface for Manipulating User Interface Objects,” filed Apr. 1, 2016, now U.S. Pat. No. 10,282,070, which is a continuation of U.S. patent application Ser. No. 13/909,002, “Device, Method, and Graphical User Interface for Manipulating User Interface Objects,” filed Jun. 3, 2013, now U.S. Pat. No. 9,310,907, which is a continuation of U.S. patent application Ser. No. 12/567,570, “Device, Method, and Graphical User Interface for Manipulating User Interface Objects,” filed Sep. 25, 2009, now U.S. Pat. No. 8,456,431, which claims priority to International Application No. PCT/US09/57899, “Device, Method, and Graphical User Interface for Manipulating User Interface Objects,” filed Sep. 22, 2009, which are incorporated by reference herein in their entirety. 
     This application is related to the following applications: (1) U.S. patent application Ser. No. 12/567,460, “Device, Method, and Graphical User Interface for Manipulating User Interface Objects,” filed Sep. 25, 2009; (2) U.S. patent application Ser. No. 12/567,553, “Device, Method, and Graphical User Interface for Manipulating User Interface Objects,” filed Sep. 25, 2009; and (3) U.S. patent application Ser. No. 12/567,570, “Device, Method, and Graphical User Interface for Manipulating User Interface Objects,” filed Sep. 25, 2009, which are incorporated by reference herein in their entirety. 
    
    
     TECHNICAL FIELD 
     The disclosed embodiments relate generally to electronic devices with touch-sensitive surfaces, and more particularly, to electronic devices with touch-sensitive surfaces that use two or more simultaneous user inputs to manipulate user interface objects. 
     BACKGROUND 
     The use of touch-sensitive surfaces as input devices for computers and other electronic computing devices has increased significantly in recent years. Exemplary touch-sensitive surfaces include touch pads and touch screen displays. Such surfaces are widely used to manipulate user interface objects on a display. 
     Exemplary manipulations include adjusting the position and/or size of one or more user interface objects, as well as associating metadata with one or more user interface objects. Exemplary user interface objects include digital images, video, text, icons, and other graphics. A user may need to perform such manipulations on user interface objects in a file management program (e.g., Finder from Apple Computer, Inc. of Cupertino, Calif.), an image management application (e.g., Aperture or iPhoto from Apple Computer, Inc. of Cupertino, Calif.), a digital content (e.g., videos and music) management application (e.g., iTunes from Apple Computer, Inc. of Cupertino, Calif.), a drawing application, a presentation application (e.g., Keynote from Apple Computer, Inc. of Cupertino, Calif.), a word processing application (e.g., Pages from Apple Computer, Inc. of Cupertino, Calif.), a website creation application (e.g., iWeb from Apple Computer, Inc. of Cupertino, Calif.), a disk authoring application (e.g., iDVD from Apple Computer, Inc. of Cupertino, Calif.), or a spreadsheet application (e.g., Numbers from Apple Computer, Inc. of Cupertino, Calif.). 
     But existing methods for performing these manipulations are cumbersome and inefficient. For example, using a sequence of mouse-based inputs to select one or more user interface objects and perform one or more actions on the selected user interface objects is tedious and creates a significant cognitive burden on a user. Existing methods that use simultaneous inputs to perform these manipulations are also cumbersome and inefficient. In addition, existing methods take longer than necessary, thereby wasting energy. This latter consideration is particularly important in battery-operated devices. 
     Accordingly, there is a need for computing devices with faster, more efficient methods and interfaces for manipulating user interface objects using two or more simultaneous user inputs, such as two simultaneous inputs on a track pad or touch screen, or simultaneous inputs from a touch-sensitive surface and a mouse. Such methods and interfaces may complement or replace conventional methods for manipulating user interface objects. Such methods and interfaces reduce the cognitive burden on a user and produce a more efficient human-machine interface. For battery-operated computing devices, such methods and interfaces conserve power and increase the time between battery charges. 
     SUMMARY 
     The above deficiencies and other problems associated with user interfaces for computing devices with touch-sensitive surfaces are reduced or eliminated by the disclosed devices. In some embodiments, the device is a desktop computer. In some embodiments, the device is portable (e.g., a notebook computer, tablet computer, or handheld device). In some embodiments, the device has a touchpad. In some embodiments, the device has a touch-sensitive display (also known as a “touch screen” or “touch screen display”). In some embodiments, the device has a graphical user interface (GUI), one or more processors, memory and one or more modules, programs or sets of instructions stored in the memory for performing multiple functions. In some embodiments, the user interacts with the GUI primarily through finger contacts and gestures on the touch-sensitive surface. In some embodiments, the functions may include image editing, drawing, presenting, word processing, website creating, disk authoring, spreadsheet making, game playing, telephoning, video conferencing, e-mailing, instant messaging, workout support, digital photographing, digital videoing, web browsing, digital music playing, and/or digital video playing. Executable instructions for performing these functions may be included in a computer readable storage medium or other computer program product configured for execution by one or more processors. 
     In accordance with some embodiments, a method is performed at a computing device with a touch screen display. The method includes: simultaneously displaying on the touch screen display: a plurality of user interface objects, and at least one destination object; and detecting a first input by a user on a destination object. The method further includes, while continuing to detect the first input by the user on the destination object: detecting a second input by the user on a first user interface object displayed at an initial first user interface object position on the touch screen display; and, in response to detecting the second input by the user on the first user interface object, performing an action on the first user interface object. The action is associated with the destination object. 
     In accordance with some embodiments, a computing device includes a touch screen display, one or more processors, memory, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include instructions for: simultaneously displaying on the touch screen display: a plurality of user interface objects, and at least one destination object. The programs also include instructions for detecting a first input by a user on a destination object. The programs further include instructions for, while continuing to detect the first input by the user on the destination object, detecting a second input by the user on a first user interface object displayed at an initial first user interface object position on the touch screen display; and, in response to detecting the second input by the user on the first user interface object, performing an action on the first user interface object. The action is associated with the destination object. 
     In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by a computing device with a touch screen display, cause the device to: simultaneously display on the touch screen display: a plurality of user interface objects, and at least one destination object. The instructions also cause the device to detect a first input by a user on a destination object. While continuing to detect the first input by the user on the destination object, the instructions also cause the device to detect a second input by the user on a first user interface object displayed at an initial first user interface object position on the touch screen display; and, in response to detecting the second input by the user on the first user interface object, perform an action on the first user interface object. The action is associated with the destination object. 
     In accordance with some embodiments, a graphical user interface on a computing device with a touch screen display, a memory, and one or more processors to execute one or more programs stored in the memory includes a plurality of user interface objects, and at least one destination object. A first input by a user on a destination object is detected. While continuing to detect the first input by the user on the destination object: a second input by the user on a first user interface object, displayed at an initial first user interface object position on the touch screen display, is detected; and, in response to detecting the second input by the user on the first user interface object, an action is performed on the first user interface object. The action is associated with the destination object. 
     In accordance with some embodiments, a computing device includes: a touch screen display; means for simultaneously displaying on the touch screen display: a plurality of user interface objects, and at least one destination object. The device also includes means for detecting a first input by a user on a destination object. The device further includes, while continuing to detect the first input by the user on the destination object, means for detecting a second input by the user on a first user interface object displayed at an initial first user interface object position on the touch screen display; and, means, responsive to detecting the second input by the user on the first user interface object, for performing an action on the first user interface object. The action is associated with the destination object. 
     In accordance with some embodiments, an information processing apparatus for use in a computing device with a touch screen display includes: means for simultaneously displaying on the touch screen display: a plurality of user interface objects, and at least one destination object. The apparatus also includes means for detecting a first input by a user on a destination object. The apparatus further includes, while continuing to detect the first input by the user on the destination object, means for detecting a second input by the user on a first user interface object displayed at an initial first user interface object position on the touch screen display; and, means, responsive to detecting the second input by the user on the first user interface object, for performing an action on the first user interface object. The action is associated with the destination object. 
     In accordance with some embodiments, a method is performed at a computing device with a touch screen display. The method includes: simultaneously displaying on the touch screen display a plurality of user interface objects, and at least one destination object; and detecting a first input by a user on a destination object. The method further includes, while continuing to detect the first input by the user on the destination object: detecting a second input by the user or a series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and, in response to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, performing an action on each of the two or more user interface objects. The action is associated with the destination object. 
     In accordance with some embodiments, a computing device includes a touch screen display, one or more processors, memory, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include instructions for: simultaneously displaying on the touch screen display: a plurality of user interface objects, and at least one destination object. The programs also include instructions for detecting a first input by a user on a destination object. The programs further include instructions for, while continuing to detect the first input by the user on the destination object: detecting a second input by the user or a series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and, in response to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, performing an action on each of the two or more user interface objects. The action is associated with the destination object. 
     In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by a computing device with a touch screen display, cause the device to: simultaneously display on the touch screen display: a plurality of user interface objects, and at least one destination object. The instructions also cause the device to detect a first input by a user on a destination object. The instructions further cause the device to, while continuing to detect the first input by the user on the destination object: detect a second input by the user or a series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and, in response to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, perform an action on each of the two or more user interface objects. The action is associated with the destination object. 
     In accordance with some embodiments, a graphical user interface on a computing device with a touch screen display, a memory, and one or more processors to execute one or more programs stored in the memory includes a plurality of user interface objects and at least one destination object. A first input by a user on a destination object is detected. While continuing to detect the first input by the user on the destination object: a second input by the user is detected or a series of inputs by the user on two or more user interface objects in the plurality of user interface objects are detected, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and, in response to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, an action is performed on each of the two or more user interface objects. The action is associated with the destination object. 
     In accordance with some embodiments, a computing device includes: a touch screen display; means for simultaneously displaying on the touch screen display: a plurality of user interface objects, and at least one destination object. The device further includes means for detecting a first input by a user on a destination object. The device also includes, while continuing to detect the first input by the user on the destination object: means for detecting a second input by the user or a series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and means, responsive to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, for performing an action on each of the two or more user interface objects. The action is associated with the destination object. 
     In accordance with some embodiments, an information processing apparatus for use in a computing device with a touch screen display includes: means for simultaneously displaying on the touch screen display: a plurality of user interface objects, and at least one destination object. The apparatus further includes means for detecting a first input by a user on a destination object. The apparatus also includes, while continuing to detect the first input by the user on the destination object: means for detecting a second input by the user or a series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and means, responsive to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, for performing an action on each of the two or more user interface objects. The action is associated with the destination object. 
     In accordance with some embodiments, a method is performed at a computing device with a touch screen display. The method includes: simultaneously displaying on the touch screen display a plurality of user interface objects and at least one destination object. The method also includes detecting a first input by a user on a first user interface object at a first location on the touch screen display. The method further includes, while continuing to detect the first input by the user: detecting movement of the first input by the user across the touch screen display to a second location on the touch screen display; moving the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; detecting a second input by the user on a second user interface object displayed at an initial second user interface object position on the touch screen display; and, in response to detecting the second input by the user on the second user interface object, displaying an animation of the second user interface object moving from the initial second user interface object position to the second location. 
     In accordance with some embodiments, a computing device includes a touch screen display, one or more processors, memory, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include instructions for: simultaneously displaying on the touch screen display: a plurality of user interface objects, and at least one destination object. The programs also include instructions for detecting a first input by a user on a first user interface object at a first location on the touch screen display. The programs further include instructions for, while continuing to detect the first input by the user: detecting movement of the first input by the user across the touch screen display to a second location on the touch screen display; moving the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; detecting a second input by the user on a second user interface object displayed at an initial second user interface object position on the touch screen display; and, in response to detecting the second input by the user on the second user interface object, displaying an animation of the second user interface object moving from the initial second user interface object position to the second location. 
     In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by a computing device with a touch screen display, cause the device to: simultaneously display on the touch screen display: a plurality of user interface objects, and at least one destination object. The instructions also cause the device to detect a first input by a user on a first user interface object at a first location on the touch screen display. The instructions further cause the device to, while continuing to detect the first input by the user: detect movement of the first input by the user across the touch screen display to a second location on the touch screen display; move the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; detect a second input by the user on a second user interface object displayed at an initial second user interface object position on the touch screen display; and, in response to detecting the second input by the user on the second user interface object, display an animation of the second user interface object moving from the initial second user interface object position to the second location. 
     In accordance with some embodiments, a graphical user interface on a computing device with a touch screen display, a memory, and one or more processors to execute one or more programs stored in the memory includes a plurality of user interface objects and at least one destination object. A first input by a user on a first user interface object is detected at a first location on the touch screen display. While continuing to detect the first input by the user: movement of the first input by the user across the touch screen display to a second location on the touch screen display is detected; the first user interface object is moved in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; a second input by the user on a second user interface object, displayed at an initial second user interface object position on the touch screen display, is detected; and, in response to detecting the second input by the user on the second user interface object, an animation of the second user interface object moving from the initial second user interface object position to the second location is displayed. 
     In accordance with some embodiments, a computing device includes: a touch screen display; and means for simultaneously displaying on the touch screen display: a plurality of user interface objects, and at least one destination object. The device also includes means for detecting a first input by a user on a first user interface object at a first location on the touch screen display. The device further includes, while continuing to detect the first input by the user: means for detecting movement of the first input by the user across the touch screen display to a second location on the touch screen display; means for moving the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; means for detecting a second input by the user on a second user interface object displayed at an initial second user interface object position on the touch screen display; and, means, responsive to detecting the second input by the user on the second user interface object, for displaying an animation of the second user interface object moving from the initial second user interface object position to the second location. 
     In accordance with some embodiments, an information processing apparatus for use in a computing device with a touch screen display includes: means for simultaneously displaying on the touch screen display a plurality of user interface objects and at least one destination object; and means for detecting a first input by a user on a first user interface object at a first location on the touch screen display. The apparatus further includes, while continuing to detect the first input by the user: means for detecting movement of the first input by the user across the touch screen display to a second location on the touch screen display; means for moving the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; means for detecting a second input by the user on a second user interface object displayed at an initial second user interface object position on the touch screen display; and, means, responsive to detecting the second input by the user on the second user interface object, for displaying an animation of the second user interface object moving from the initial second user interface object position to the second location. 
     In accordance with some embodiments, a method is performed at a computing device with a touch screen display. The method includes: simultaneously displaying on the touch screen display a plurality of user interface objects and at least one destination object. The method also includes detecting a first input by a user on a first user interface object at a first location on the touch screen display. The method further includes, while continuing to detect the first input by the user: detecting movement of the first input by the user across the touch screen display to a second location on the touch screen display; moving the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; detecting a second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and, in response to detecting the second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, displaying animations of each respective user interface object in the two or more user interface objects moving from a respective initial user interface object position to the second location. 
     In accordance with some embodiments, a computing device includes a touch screen display, one or more processors, memory, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include instructions for simultaneously displaying on the touch screen display a plurality of user interface objects and at least one destination object. The programs also include instructions for detecting a first input by a user on a first user interface object at a first location on the touch screen display. The programs further include instructions for, while continuing to detect the first input by the user: detecting movement of the first input by the user across the touch screen display to a second location on the touch screen display; moving the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; detecting a second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and, in response to detecting the second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, displaying animations of each respective user interface object in the two or more user interface objects moving from a respective initial user interface object position to the second location. 
     In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by a computing device with a touch screen display, cause the device to simultaneously display on the touch screen display a plurality of user interface objects and at least one destination object. The instructions also cause the device to detect a first input by a user on a first user interface object at a first location on the touch screen display. The instructions further cause the device to, while continuing to detect the first input by the user: detect movement of the first input by the user across the touch screen display to a second location on the touch screen display; move the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; detect a second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and, in response to detecting the second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, display animations of each respective user interface object in the two or more user interface objects moving from a respective initial user interface object position to the second location. 
     In accordance with some embodiments, a graphical user interface on a computing device with a touch screen display, a memory, and one or more processors to execute one or more programs stored in the memory includes a plurality of user interface objects and at least one destination object. A first input by a user is detected on a first user interface object at a first location on the touch screen display. While continuing to detect the first input by the user: movement of the first input by the user across the touch screen display to a second location on the touch screen display is detected; the first user interface object is moved in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; a second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects is detected, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and, in response to detecting the second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, animations of each respective user interface object in the two or more user interface objects moving from a respective initial user interface object position to the second location are displayed. 
     In accordance with some embodiments, a computing device includes: a touch screen display; and means for simultaneously displaying on the touch screen display a plurality of user interface objects and at least one destination object. The device also includes means for detecting a first input by a user on a first user interface object at a first location on the touch screen display. The device further includes, while continuing to detect the first input by the user: means for detecting movement of the first input by the user across the touch screen display to a second location on the touch screen display; means for moving the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; means for detecting a second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and means, responsive to detecting the second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, for displaying animations of each respective user interface object in the two or more user interface objects moving from a respective initial user interface object position to the second location. 
     In accordance with some embodiments, an information processing apparatus for use in a computing device with a touch screen display includes: means for simultaneously displaying on the touch screen display a plurality of user interface objects and at least one destination object. The apparatus also includes means for detecting a first input by a user on a first user interface object at a first location on the touch screen display. The apparatus further includes, while continuing to detect the first input by the user: means for detecting movement of the first input by the user across the touch screen display to a second location on the touch screen display; means for moving the first user interface object in accordance with the movement of the first input by the user across the touch screen display to the second location on the touch screen display; means for detecting a second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, wherein the two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display; and means, responsive to detecting the second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, for displaying animations of each respective user interface object in the two or more user interface objects moving from a respective initial user interface object position to the second location. 
     In accordance with some embodiments, a method is performed at a computing device with a touch screen display. The method includes simultaneously displaying on the touch screen display a plurality of user interface objects in an array. The plurality of user interface objects in the array is displayed in a first arrangement. A first user interface object in the plurality of user interface objects is displayed at a first size. The first arrangement comprises a first plurality of rows. The method further includes detecting simultaneous contacts by a plurality of fingers on the array. The simultaneous contacts have a corresponding centroid position at the first user interface object. The method also includes detecting a gesture made by the simultaneous contacts that corresponds to a command to zoom in by a user-specified amount; and, in response to detecting the gesture by the simultaneous contacts, enlarging the first user interface object to a second size larger than the first size on the touch screen display. The method further includes, after enlarging the first user interface object to the second size and while continuing to detect the simultaneous contacts on the touch screen display, determining an updated centroid position of the simultaneous contacts. The updated centroid position is located at a first vertical position on the touch screen display immediately prior to ceasing to detect the simultaneous contacts. The method also includes ceasing to detect the simultaneous contacts; and, in response to ceasing to detect the simultaneous contacts, displaying an animation of the plurality of user interface objects in the array rearranging to form a second arrangement. The second arrangement comprises a second plurality of rows different from the first plurality of rows. The first user interface object is displayed in a row in the second arrangement that includes the first vertical position on the touch screen display. 
     In accordance with some embodiments, a computing device includes a touch screen display, one or more processors, memory, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include instructions for simultaneously displaying on the touch screen display a plurality of user interface objects in an array. The plurality of user interface objects in the array is displayed in a first arrangement. A first user interface object in the plurality of user interface objects is displayed at a first size. The first arrangement comprises a first plurality of rows. The programs also include instructions for detecting simultaneous contacts by a plurality of fingers on the array. The simultaneous contacts have a corresponding centroid position at the first user interface object. The programs further include instructions for: detecting a gesture made by the simultaneous contacts that corresponds to a command to zoom in by a user-specified amount; in response to detecting the gesture by the simultaneous contacts, enlarging the first user interface object to a second size larger than the first size on the touch screen display; and, after enlarging the first user interface object to the second size and while continuing to detect the simultaneous contacts on the touch screen display, determining an updated centroid position of the simultaneous contacts. The updated centroid position is located at a first vertical position on the touch screen display immediately prior to ceasing to detect the simultaneous contacts. The program also includes instructions for: ceasing to detect the simultaneous contacts; and, in response to ceasing to detect the simultaneous contacts, displaying an animation of the plurality of user interface objects in the array rearranging to form a second arrangement. The second arrangement comprises a second plurality of rows different from the first plurality of rows, and the first user interface object is displayed in a row in the second arrangement that includes the first vertical position on the touch screen display. 
     In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by a computing device with a touch screen display, cause the device to simultaneously display on the touch screen display a plurality of user interface objects in an array. The plurality of user interface objects in the array is displayed in a first arrangement. A first user interface object in the plurality of user interface objects is displayed at a first size. The first arrangement comprises a first plurality of rows. The instructions also cause the device to detect simultaneous contacts by a plurality of fingers on the array. The simultaneous contacts have a corresponding centroid position at the first user interface object. The instructions further cause the device to: detect a gesture made by the simultaneous contacts that corresponds to a command to zoom in by a user-specified amount; in response to detecting the gesture by the simultaneous contacts, enlarge the first user interface object to a second size larger than the first size on the touch screen display; and, after enlarging the first user interface object to the second size and while continuing to detect the simultaneous contacts on the touch screen display, determine an updated centroid position of the simultaneous contacts. The updated centroid position is located at a first vertical position on the touch screen display immediately prior to ceasing to detect the simultaneous contacts. The instructions also cause the device to: cease to detect the simultaneous contacts; and, in response to ceasing to detect the simultaneous contacts, display an animation of the plurality of user interface objects in the array rearranging to form a second arrangement. The second arrangement comprises a second plurality of rows different from the first plurality of rows. The first user interface object is displayed in a row in the second arrangement that includes the first vertical position on the touch screen display. 
     In accordance with some embodiments, a graphical user interface on a computing device with a touch screen display, a memory, and one or more processors to execute one or more programs stored in the memory includes a plurality of user interface objects in an array. The plurality of user interface objects in the array is displayed in a first arrangement. A first user interface object in the plurality of user interface objects is displayed at a first size. The first arrangement comprises a first plurality of rows. Simultaneous contacts by a plurality of fingers are detected on the array. The simultaneous contacts have a corresponding centroid position at the first user interface object. A gesture made by the simultaneous contacts that corresponds to a command to zoom in by a user-specified amount is detected. In response to detecting the gesture by the simultaneous contacts, the first user interface object is enlarged to a second size larger than the first size on the touch screen display. After enlarging the first user interface object to the second size and while continuing to detect the simultaneous contacts on the touch screen display, an updated centroid position of the simultaneous contacts is determined. The updated centroid position is located at a first vertical position on the touch screen display immediately prior to ceasing to detect the simultaneous contacts. The simultaneous contacts cease to be detected. In response to ceasing to detect the simultaneous contacts, an animation of the plurality of user interface objects in the array rearranging to form a second arrangement is displayed. The second arrangement comprises a second plurality of rows different from the first plurality of rows. The first user interface object is displayed in a row in the second arrangement that includes the first vertical position on the touch screen display. 
     In accordance with some embodiments, a computing device includes: a touch screen display; and means for simultaneously displaying on the touch screen display a plurality of user interface objects in an array. The plurality of user interface objects in the array is displayed in a first arrangement. A first user interface object in the plurality of user interface objects is displayed at a first size. The first arrangement comprises a first plurality of rows. The device also includes means for detecting simultaneous contacts by a plurality of fingers on the array. The simultaneous contacts have a corresponding centroid position at the first user interface object. The device further includes: means for detecting a gesture made by the simultaneous contacts that corresponds to a command to zoom in by a user-specified amount; means, responsive to detecting the gesture by the simultaneous contacts, for enlarging the first user interface object to a second size larger than the first size on the touch screen display; and means for, after enlarging the first user interface object to the second size and while continuing to detect the simultaneous contacts on the touch screen display, determining an updated centroid position of the simultaneous contacts. The updated centroid position is located at a first vertical position on the touch screen display immediately prior to ceasing to detect the simultaneous contacts. The device also includes: means for ceasing to detect the simultaneous contacts; and, means, responsive to ceasing to detect the simultaneous contacts, for displaying an animation of the plurality of user interface objects in the array rearranging to form a second arrangement. The second arrangement comprises a second plurality of rows different from the first plurality of rows. The first user interface object is displayed in a row in the second arrangement that includes the first vertical position on the touch screen display. 
     In accordance with some embodiments, an information processing apparatus for use in a computing device with a touch screen display includes means for simultaneously displaying on the touch screen display a plurality of user interface objects in an array. The plurality of user interface objects in the array is displayed in a first arrangement. A first user interface object in the plurality of user interface objects is displayed at a first size. The first arrangement comprises a first plurality of rows. The apparatus also includes means for detecting simultaneous contacts by a plurality of fingers on the array. The simultaneous contacts have a corresponding centroid position at the first user interface object. The apparatus further includes: means for detecting a gesture made by the simultaneous contacts that corresponds to a command to zoom in by a user-specified amount; means, responsive to detecting the gesture by the simultaneous contacts, for enlarging the first user interface object to a second size larger than the first size on the touch screen display; and means for, after enlarging the first user interface object to the second size and while continuing to detect the simultaneous contacts on the touch screen display, determining an updated centroid position of the simultaneous contacts. The updated centroid position is located at a first vertical position on the touch screen display immediately prior to ceasing to detect the simultaneous contacts. The apparatus also includes: means for ceasing to detect the simultaneous contacts; and, means, responsive to ceasing to detect the simultaneous contacts, for displaying an animation of the plurality of user interface objects in the array rearranging to form a second arrangement. The second arrangement comprises a second plurality of rows different from the first plurality of rows. The first user interface object is displayed in a row in the second arrangement that includes the first vertical position on the touch screen display. 
     In accordance with some embodiments, a method is performed at a computing device with a touch screen display. The method includes simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. The method further includes detecting a first input by a user on the touch screen display; and, in response to detecting the first input by the user on the touch screen display, vertically scrolling the plurality of arrays on the touch screen display. The method further includes detecting a second input by the user on a single array in the plurality of arrays on the touch screen display; and, in response to detecting the second input by the user on the single array, horizontally scrolling user interface objects in the single array. 
     In accordance with some embodiments, a computing device includes a touch screen display, one or more processors, memory, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include instructions for simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. The programs also include instructions for: detecting a first input by a user on the touch screen display; and, in response to detecting the first input by the user on the touch screen display, vertically scrolling the plurality of arrays on the touch screen display. The programs further include instructions for: detecting a second input by the user on a single array in the plurality of arrays on the touch screen display; and, in response to detecting the second input by the user on the single array, horizontally scrolling user interface objects in the single array. 
     In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by a computing device with a touch screen display, cause the device to simultaneously display on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. The instructions also cause the device to: detect a first input by a user on the touch screen display; and in response to detecting the first input by the user on the touch screen display, vertically scroll the plurality of arrays on the touch screen display. The instructions further cause the device to: detect a second input by the user on a single array in the plurality of arrays on the touch screen display; and, in response to detecting the second input by the user on the single array, horizontally scroll user interface objects in the single array. 
     In accordance with some embodiments, a graphical user interface on a computing device with a touch screen display, a memory, and one or more processors to execute one or more programs stored in the memory includes at least one destination object and at least a subset of a plurality of arrays of user interface objects. A first input by a user on the touch screen display is detected. In response to detecting the first input by the user on the touch screen display, the plurality of arrays on the touch screen display is vertically scrolled. A second input by the user on a single array in the plurality of arrays on the touch screen display is detected. In response to detecting the second input by the user on the single array, user interface objects in the single array are horizontally scrolled. 
     In accordance with some embodiments, a computing device includes: a touch screen display; and means for simultaneously di splaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. The device also includes: means for detecting a first input by a user on the touch screen display; and, means, responsive to detecting the first input by the user on the touch screen display, for vertically scrolling the plurality of arrays on the touch screen display. The device further includes: means for detecting a second input by the user on a single array in the plurality of arrays on the touch screen display; and, means, responsive to detecting the second input by the user on the single array, for horizontally scrolling user interface objects in the single array. 
     In accordance with some embodiments, an information processing apparatus for use in a computing device with a touch screen display includes means for simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. The apparatus also includes: means for detecting a first input by a user on the touch screen display; and, means, responsive to detecting the first input by the user on the touch screen display, for vertically scrolling the plurality of arrays on the touch screen display. The apparatus further includes: means for detecting a second input by the user on a single array in the plurality of arrays on the touch screen display; and, means, responsive to detecting the second input by the user on the single array, for horizontally scrolling user interface objects in the single array. 
     In accordance with some embodiments, a method is performed at a computing device with a touch screen display. The method includes: simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. The method further includes: detecting activation of a respective array name icon that corresponds to a respective array in the plurality of arrays, and, in response to detecting activation of the respective array name icon that corresponds to the respective array, displaying an animation of user interface objects in the respective array moving into a respective representative user interface object for the respective array. The method also includes: detecting movement of an input by the user from the array name icon to a destination object or an area associated with a destination object; and, moving the respective representative user interface object in accordance with the movement of the input by the user across the touch screen display to the destination object or the area associated with a destination object. The method further includes: detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with a destination object; and, in response to detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with the destination object, performing an action on the user interface objects in the respective array. The action is associated with the destination object. 
     In accordance with some embodiments, a computing device includes a touch screen display, one or more processors, memory, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include instructions for simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. The programs also include instructions for: detecting activation of a respective array name icon that corresponds to a respective array in the plurality of arrays; and, in response to detecting activation of the respective array name icon that corresponds to the respective array, displaying an animation of user interface objects in the respective array moving into a respective representative user interface object for the respective array. The programs further include instructions for: detecting movement of an input by the user from the array name icon to a destination object or an area associated with a destination object; and moving the respective representative user interface object in accordance with the movement of the input by the user across the touch screen display to the destination object or the area associated with a destination object. The programs also include instructions for: detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with a destination object; and, in response to detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with the destination object, performing an action on the user interface objects in the respective array. The action is associated with the destination object. 
     In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by a computing device with a touch screen display, cause the device to simultaneously display on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. 
     The instructions also cause the device to: detect activation of a respective array name icon that corresponds to a respective array in the plurality of arrays; and, in response to detecting activation of the respective array name icon that corresponds to the respective array, display an animation of user interface objects in the respective array moving into a respective representative user interface object for the respective array. The instructions also cause the device to: detect movement of an input by the user from the array name icon to a destination object or an area associated with a destination object; and, move the respective representative user interface object in accordance with the movement of the input by the user across the touch screen display to the destination object or the area associated with a destination object. The instructions further cause the device to: detect lift off of the input by the user from the touch screen display at the destination object or at the area associated with a destination object; and, in response to detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with the destination object, perform an action on the user interface objects in the respective array. The action is associated with the destination object. 
     In accordance with some embodiments, a graphical user interface on a computing device with a touch screen display, a memory, and one or more processors to execute one or more programs stored in the memory includes at least one destination object and at least a subset of a plurality of arrays of user interface objects. Activation of a respective array name icon that corresponds to a respective array in the plurality of arrays is detected. In response to detecting activation of the respective array name icon that corresponds to the respective array, an animation of user interface objects in the respective array moving into a respective representative user interface object for the respective array is displayed. Movement of an input by the user from the array name icon to a destination object or an area associated with a destination object is detected. The respective representative user interface object is moved in accordance with the movement of the input by the user across the touch screen display to the destination object or the area associated with a destination object. Lift off of the input by the user from the touch screen display at the destination object or at the area associated with a destination object is detected. In response to detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with the destination object, an action on the user interface objects in the respective array is performed. The action is associated with the destination object. 
     In accordance with some embodiments, a computing device includes: a touch screen display; and means for simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. The device also includes: means for detecting activation of a respective array name icon that corresponds to a respective array in the plurality of arrays; and means, responsive to detecting activation of the respective array name icon that corresponds to the respective array, for displaying an animation of user interface objects in the respective array moving into a respective representative user interface object for the respective array. The device further includes: means for detecting movement of an input by the user from the array name icon to a destination object or an area associated with a destination object; and means for moving the respective representative user interface object in accordance with the movement of the input by the user across the touch screen display to the destination object or the area associated with a destination object. The device also includes: means for detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with a destination object; and, means, responsive to detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with the destination object, for performing an action on the user interface objects in the respective array. The action is associated with the destination object. 
     In accordance with some embodiments, an information processing apparatus for use in a computing device with a touch screen display includes means for simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects. The apparatus also includes: means for detecting activation of a respective array name icon that corresponds to a respective array in the plurality of arrays; and means, responsive to detecting activation of the respective array name icon that corresponds to the respective array, for displaying an animation of user interface objects in the respective array moving into a respective representative user interface object for the respective array. The apparatus further includes: means for detecting movement of an input by the user from the array name icon to a destination object or an area associated with a destination object; and means for moving the respective representative user interface object in accordance with the movement of the input by the user across the touch screen display to the destination object or the area associated with a destination object. The apparatus also includes: means for detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with a destination object; and, means, responsive to detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with the destination object, for performing an action on the user interface objects in the respective array. The action is associated with the destination object. 
     In accordance with some embodiments, a method is performed at a computing device with a touch screen display. The method includes: simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; detecting activation of a menu category icon; and, in response to detecting activation of the menu category icon, displaying a plurality of representative user interface objects for respective arrays in a menu category that corresponds to the menu category icon. 
     In accordance with some embodiments, a computing device includes a touch screen display, one or more processors, memory, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include instructions for: simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; detecting activation of a menu category icon; and, in response to detecting activation of the menu category icon, displaying a plurality of representative user interface objects for respective arrays in a menu category that corresponds to the menu category icon. 
     In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by a computing device with a touch screen display, cause the device to: simultaneously display on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; detect activation of a menu category icon; and, in response to detecting activation of the menu category icon, display a plurality of representative user interface objects for respective arrays in a menu category that corresponds to the menu category icon. 
     In accordance with some embodiments, a graphical user interface on a computing device with a touch screen display, a memory, and one or more processors to execute one or more programs stored in the memory includes at least one destination object and at least a subset of a plurality of arrays of user interface objects. Activation of a menu category icon is detected. In response to detecting activation of the menu category icon, a plurality of representative user interface objects for respective arrays are displayed in a menu category that corresponds to the menu category icon. 
     In accordance with some embodiments, a computing device includes: a touch screen display; means for simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; means for detecting activation of a menu category icon; and, means, responsive to detecting activation of the menu category icon, for displaying a plurality of representative user interface objects for respective arrays in a menu category that corresponds to the menu category icon. 
     In accordance with some embodiments, an information processing apparatus for use in a computing device with a touch screen display includes: means for simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; means for detecting activation of a menu category icon; and, means, responsive to detecting activation of the menu category icon, for displaying a plurality of representative user interface objects for respective arrays in a menu category that corresponds to the menu category icon. 
     In accordance with some embodiments, a method is performed at a computing device with a touch screen display. The method includes: simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; detecting a first input by a user on a destination object; while continuing to detect the first input by the user on the destination object, detecting a second input by the user on an array name icon; and, in response to detecting the second input by the user on the array name icon, performing an action on all user interface objects in an array that corresponds to the array name icon. The action is associated with the destination object. 
     In accordance with some embodiments, a computing device includes a touch screen display, one or more processors, memory, and one or more programs. The one or more programs are stored in the memory and configured to be executed by the one or more processors. The one or more programs include instructions for: simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; detecting a first input by a user on a destination object; while continuing to detect the first input by the user on the destination object, detecting a second input by the user on an array name icon; and, in response to detecting the second input by the user on the array name icon, performing an action on all user interface objects in an array that corresponds to the array name icon. The action is associated with the destination object. 
     In accordance with some embodiments, a computer readable storage medium has stored therein instructions which when executed by a computing device with a touch screen display, cause the device to: simultaneously display on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; detect a first input by a user on a destination object; while continuing to detect the first input by the user on the destination object, detect a second input by the user on an array name icon; and, in response to detecting the second input by the user on the array name icon, perform an action on all user interface objects in an array that corresponds to the array name icon. The action is associated with the destination object. 
     In accordance with some embodiments, a graphical user interface on a computing device with a touch screen display, a memory, and one or more processors to execute one or more programs stored in the memory includes at least one destination object and at least a subset of a plurality of arrays of user interface objects. A first input by a user on a destination object is detected. While continuing to detect the first input by the user on the destination object, a second input by the user on an array name icon is detected. In response to detecting the second input by the user on the array name icon, an action is performed on all user interface objects in an array that corresponds to the array name icon. The action is associated with the destination object. 
     In accordance with some embodiments, a computing device includes: a touch screen display; means for simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; means for detecting a first input by a user on a destination object; while continuing to detect the first input by the user on the destination object, means for detecting a second input by the user on an array name icon; and, means, responsive to detecting the second input by the user on the array name icon, for performing an action on all user interface objects in an array that corresponds to the array name icon. The action is associated with the destination object. 
     In accordance with some embodiments, an information processing apparatus for use in a computing device with a touch screen display includes: means for simultaneously displaying on the touch screen display at least one destination object and at least a subset of a plurality of arrays of user interface objects; means for detecting a first input by a user on a destination object; while continuing to detect the first input by the user on the destination object, means for detecting a second input by the user on an array name icon; and, means, responsive to detecting the second input by the user on the array name icon, for performing an action on all user interface objects in an array that corresponds to the array name icon. The action is associated with the destination object. 
     Thus, computing devices with touch screen displays are provided with faster, more efficient methods and interfaces for manipulating user interface objects using two or more simultaneous user inputs, thereby increasing the effectiveness, efficiency, and user satisfaction with such devices. Such methods and interfaces may complement or replace conventional methods for manipulating user interface objects. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       For a better understanding of the aforementioned embodiments of the invention as well as additional embodiments thereof, reference should be made to the Description of Embodiments below, in conjunction with the following drawings in which like reference numerals refer to corresponding parts throughout the figures. 
         FIGS. 1A and 1B  are block diagrams illustrating portable multifunction devices with touch-sensitive displays in accordance with some embodiments. 
         FIG. 2  illustrates a portable multifunction device having a touch screen in accordance with some embodiments. 
         FIG. 3  is a block diagram of an exemplary computing device with a display and a touch-sensitive surface in accordance with some embodiments. 
         FIGS. 4A and 4B  illustrate exemplary user interfaces for a menu of applications on a portable multifunction device in accordance with some embodiments. 
         FIG. 4C  illustrates exemplary user interfaces for a device with a touch-sensitive surface that is separate from the display in accordance with some embodiments. 
         FIGS. 5A-5Y  illustrate exemplary user interfaces for moving one or more user interface objects to a destination object and performing an action associated with the destination object on the one or more user interface objects in accordance with some embodiments. 
         FIGS. 6A-6X  illustrate exemplary user interfaces for forming a group of user interface objects, moving the group to a destination object or an area associated with a destination object, and performing an action associated with the destination object on the group of user interface objects in accordance with some embodiments. 
         FIGS. 7A-7O  illustrate exemplary user interfaces for zooming and rearranging user interface objects in an array with a multifinger gesture in accordance with some embodiments. 
         FIGS. 8A-8UU  illustrate exemplary user interfaces for manipulating user interface objects in a plurality of arrays of user interface objects in accordance with some embodiments. 
         FIGS. 9A-9D  are flow diagrams illustrating a method of moving one or more user interface objects to a destination object and performing an action associated with the destination object on the one or more user interface objects in accordance with some embodiments. 
         FIGS. 10A-10B  are flow diagrams illustrating a method of moving multiple user interface objects to a destination object and performing an action associated with the destination object on the multiple user interface objects in accordance with some embodiments. 
         FIGS. 11A-11B  are flow diagrams illustrating a method of forming a group of user interface objects, moving the group to a destination object or an area associated with a destination object, and performing an action associated with the destination object on the group of user interface objects in accordance with some embodiments. 
         FIGS. 12A-12B  are flow diagrams illustrating a method of forming a group of user interface objects, moving the group to a destination object or an area associated with a destination object, and performing an action associated with the destination object on the group of user interface objects in accordance with some embodiments. 
         FIGS. 13A-13B  are flow diagrams illustrating a method of zooming and rearranging user interface objects in an array with a multifinger gesture in accordance with some embodiments. 
         FIGS. 14A-14I  are flow diagrams illustrating a method of manipulating user interface objects in a plurality of arrays of user interface objects in accordance with some embodiments. 
         FIGS. 15A-15B  are flow diagrams illustrating a method of performing an action on user interface objects in an array in accordance with some embodiments. 
         FIGS. 16A-16B  are flow diagrams illustrating a method of using representative user interface objects for respective arrays in a menu category to select an array in accordance with some embodiments. 
         FIGS. 17A-17B  are flow diagrams illustrating a method of performing an action on user interface objects in an array in accordance with some embodiments. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, circuits, and networks have not been described in detail so as not to unnecessarily obscure aspects of the embodiments. 
     It will also be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first contact could be termed a second contact, and, similarly, a second contact could be termed a first contact, without departing from the scope of the present invention. The first contact and the second contact are both contacts, but they are not the same contact. 
     The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the description of the invention and the appended claims, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term “and/or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms “includes,” “including,” “comprises,” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. 
     As used herein, the term “if” may be construed to mean “when” or “upon” or “in response to determining” or “in response to detecting,” depending on the context. Similarly, the phrase “if it is determined” or “if [a stated condition or event] is detected” may be construed to mean “upon determining” or “in response to determining” or “upon detecting [the stated condition or event]” or “in response to detecting [the stated condition or event],” depending on the context. 
     Embodiments of computing devices, user interfaces for such devices, and associated processes for using such devices are described. In some embodiments, the computing device is a portable communications device such as a mobile telephone that also contains other functions, such as PDA and/or music player functions. Exemplary embodiments of portable multifunction devices include, without limitation, the iPhone® and iPod Touch® devices from Apple, Inc. of Cupertino, Calif. 
     In the discussion that follows, a computing device that includes a display and a touch-sensitive surface is described. It should be understood, however, that the computing device may include one or more other physical user-interface devices, such as a physical keyboard, a mouse and/or a joystick. 
     The device supports a variety of applications, such as one or more of the following: a drawing application, a presentation application, a word processing application, a website creation application, a disk authoring application, a spreadsheet application, a gaming application, a telephone application, a video conferencing application, an e-mail application, an instant messaging application, a workout support application, a photo management application, a digital camera application, a digital video camera application, a web browsing application, a digital music player application, and/or a digital video player application. 
     The various applications that may be executed on the device may use at least one common physical user-interface device, such as the touch-sensitive surface. One or more functions of the touch-sensitive surface as well as corresponding information displayed on the device may be adjusted and/or varied from one application to the next and/or within a respective application. In this way, a common physical architecture (such as the touch-sensitive surface) of the device may support the variety of applications with user interfaces that are intuitive and transparent. 
     The user interfaces may include one or more soft keyboard embodiments. The soft keyboard embodiments may include standard (QWERTY) and/or non-standard configurations of symbols on the displayed icons of the keyboard, such as those described in U.S. patent application Ser. No. 11/459,606, “Keyboards For Portable Electronic Devices,” filed Jul. 24, 2006, and Ser. No. 11/459,615, “Touch Screen Keyboards For Portable Electronic Devices,” filed Jul. 24, 2006, the contents of which are hereby incorporated by reference in their entirety. The keyboard embodiments may include a reduced number of icons (or soft keys) relative to the number of keys in existing physical keyboards, such as that for a typewriter. This may make it easier for users to select one or more icons in the keyboard, and thus, one or more corresponding symbols. The keyboard embodiments may be adaptive. For example, displayed icons may be modified in accordance with user actions, such as selecting one or more icons and/or one or more corresponding symbols. One or more applications on the device may utilize common and/or different keyboard embodiments. Thus, the keyboard embodiment used may be tailored to at least some of the applications. In some embodiments, one or more keyboard embodiments may be tailored to a respective user. For example, one or more keyboard embodiments may be tailored to a respective user based on a word usage history (lexicography, slang, individual usage) of the respective user. Some of the keyboard embodiments may be adjusted to reduce a probability of a user error when selecting one or more icons, and thus one or more symbols, when using the soft keyboard embodiments. 
     Attention is now directed towards embodiments of portable devices with touch-sensitive displays.  FIGS. 1A and 1B  are block diagrams illustrating portable multifunction devices  100  with touch-sensitive displays  112  in accordance with some embodiments. The touch-sensitive display  112  is sometimes called a “touch screen” for convenience, and may also be known as or called a touch-sensitive display system. The device  100  may include a memory  102  (which may include one or more computer readable storage mediums), a memory controller  122 , one or more processing units (CPU&#39;s)  120 , a peripherals interface  118 , RF circuitry  108 , audio circuitry  110 , a speaker  111 , a microphone  113 , an input/output (I/O) subsystem  106 , other input or control devices  116 , and an external port  124 . The device  100  may include one or more optical sensors  164 . These components may communicate over one or more communication buses or signal lines  103 . 
     It should be appreciated that the device  100  is only one example of a portable multifunction device  100 , and that the device  100  may have more or fewer components than shown, may combine two or more components, or a may have a different configuration or arrangement of the components. The various components shown in  FIGS. 1A and 1B  may be implemented in hardware, software, or a combination of both hardware and software, including one or more signal processing and/or application specific integrated circuits. 
     Memory  102  may include high-speed random access memory and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Access to memory  102  by other components of the device  100 , such as the CPU  120  and the peripherals interface  118 , may be controlled by the memory controller  122 . 
     The peripherals interface  118  couples the input and output peripherals of the device to the CPU  120  and memory  102 . The one or more processors  120  run or execute various software programs and/or sets of instructions stored in memory  102  to perform various functions for the device  100  and to process data. 
     In some embodiments, the peripherals interface  118 , the CPU  120 , and the memory controller  122  may be implemented on a single chip, such as a chip  104 . In some other embodiments, they may be implemented on separate chips. 
     The RF (radio frequency) circuitry  108  receives and sends RF signals, also called electromagnetic signals. The RF circuitry  108  converts electrical signals to/from electromagnetic signals and communicates with communications networks and other communications devices via the electromagnetic signals. The RF circuitry  108  may include well-known circuitry for performing these functions, including but not limited to an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC chipset, a subscriber identity module (SIM) card, memory, and so forth. The RF circuitry  108  may communicate with networks, such as the Internet, also referred to as the World Wide Web (WWW), an intranet and/or a wireless network, such as a cellular telephone network, a wireless local area network (LAN) and/or a metropolitan area network (MAN), and other devices by wireless communication. The wireless communication may use any of a plurality of communications standards, protocols and technologies, including but not limited to Global System for Mobile Communications (GSM), Enhanced Data GSM Environment (EDGE), high-speed downlink packet access (HSDPA), wideband code division multiple access (W-CDMA), code division multiple access (CDMA), time division multiple access (TDMA), Bluetooth, Wireless Fidelity (Wi-Fi) (e.g., IEEE 802.11a, IEEE 802.11b, IEEE 802.11g and/or IEEE 802.11n), voice over Internet Protocol (VoIP), Wi-MAX, a protocol for email (e.g., Internet message access protocol (IMAP) and/or post office protocol (POP)), instant messaging (e.g., extensible messaging and presence protocol (XMPP), Session Initiation Protocol for Instant Messaging and Presence Leveraging Extensions (SIMPLE), Instant Messaging and Presence Service (IMPS)), and/or Short Message Service (SMS), or any other suitable communication protocol, including communication protocols not yet developed as of the filing date of this document. 
     The audio circuitry  110 , the speaker  111 , and the microphone  113  provide an audio interface between a user and the device  100 . The audio circuitry  110  receives audio data from the peripherals interface  118 , converts the audio data to an electrical signal, and transmits the electrical signal to the speaker  111 . The speaker  111  converts the electrical signal to human-audible sound waves. The audio circuitry  110  also receives electrical signals converted by the microphone  113  from sound waves. The audio circuitry  110  converts the electrical signal to audio data and transmits the audio data to the peripherals interface  118  for processing. Audio data may be retrieved from and/or transmitted to memory  102  and/or the RF circuitry  108  by the peripherals interface  118 . In some embodiments, the audio circuitry  110  also includes a headset jack (e.g.  212 ,  FIG. 2 ). The headset jack provides an interface between the audio circuitry  110  and removable audio input/output peripherals, such as output-only headphones or a headset with both output (e.g., a headphone for one or both ears) and input (e.g., a microphone). 
     The I/O subsystem  106  couples input/output peripherals on the device  100 , such as the touch screen  112  and other input/control devices  116 , to the peripherals interface  118 . The I/O subsystem  106  may include a display controller  156  and one or more input controllers  160  for other input or control devices. The one or more input controllers  160  receive/send electrical signals from/to other input or control devices  116 . The other input/control devices  116  may include physical buttons (e.g., push buttons, rocker buttons, etc.), dials, slider switches, joysticks, click wheels, and so forth. In some alternate embodiments, input controller(s)  160  may be coupled to any (or none) of the following: a keyboard, infrared port, USB port, and a pointer device such as a mouse. The one or more buttons (e.g.,  208 ,  FIG. 2 ) may include an up/down button for volume control of the speaker  111  and/or the microphone  113 . The one or more buttons may include a push button (e.g.,  206 ,  FIG. 2 ). A quick press of the push button may disengage a lock of the touch screen  112  or begin a process that uses gestures on the touch screen to unlock the device, as described in U.S. patent application Ser. No. 11/322,549, “Unlocking a Device by Performing Gestures on an Unlock Image,” filed Dec. 23, 2005, which is hereby incorporated by reference in its entirety. A longer press of the push button (e.g.,  206 ) may turn power to the device  100  on or off. The user may be able to customize a functionality of one or more of the buttons. The touch screen  112  is used to implement virtual or soft buttons and one or more soft keyboards. 
     The touch-sensitive touch screen  112  provides an input interface and an output interface between the device and a user. The display controller  156  receives and/or sends electrical signals from/to the touch screen  112 . The touch screen  112  displays visual output to the user. The visual output may include graphics, text, icons, video, and any combination thereof (collectively termed “graphics”). In some embodiments, some or all of the visual output may correspond to user-interface objects. 
     A touch screen  112  has a touch-sensitive surface, sensor or set of sensors that accepts input from the user based on haptic and/or tactile contact. The touch screen  112  and the display controller  156  (along with any associated modules and/or sets of instructions in memory  102 ) detect contact (and any movement or breaking of the contact) on the touch screen  112  and converts the detected contact into interaction with user-interface objects (e.g., one or more soft keys, icons, web pages or images) that are displayed on the touch screen. In an exemplary embodiment, a point of contact between a touch screen  112  and the user corresponds to a finger of the user. 
     The touch screen  112  may use LCD (liquid crystal display) technology, or LPD (light emitting polymer display) technology, although other display technologies may be used in other embodiments. The touch screen  112  and the display controller  156  may detect contact and any movement or breaking thereof using any of a plurality of touch sensing technologies now known or later developed, including but not limited to capacitive, resistive, infrared, and surface acoustic wave technologies, as well as other proximity sensor arrays or other elements for determining one or more points of contact with a touch screen  112 . In an exemplary embodiment, projected mutual capacitance sensing technology is used, such as that found in the iPhone® and iPod Touch® from Apple, Inc. of Cupertino, Calif. 
     A touch-sensitive display in some embodiments of the touch screen  112  may be analogous to the multi-touch sensitive tablets described in the following U.S. Pat. No. 6,323,846 (Westerman et al.), U.S. Pat. No. 6,570,557 (Westerman et al.), and/or U.S. Pat. No. 6,677,932 (Westerman), and/or U.S. Patent Publication 2002/0015024A1, each of which is hereby incorporated by reference in its entirety. However, a touch screen  112  displays visual output from the portable device  100 , whereas touch sensitive tablets do not provide visual output. 
     A touch-sensitive display in some embodiments of the touch screen  112  may be as described in the following applications: (1) U.S. patent application Ser. No. 11/381,313, “Multipoint Touch Surface Controller,” filed May 2, 2006; (2) U.S. patent application Ser. No. 10/840,862, “Multipoint Touchscreen,” filed May 6, 2004; (3) U.S. patent application Ser. No. 10/903,964, “Gestures For Touch Sensitive Input Devices,” filed Jul. 30, 2004; (4) U.S. patent application Ser. No. 11/048,264, “Gestures For Touch Sensitive Input Devices,” filed Jan. 31, 2005; (5) U.S. patent application Ser. No. 11/038,590, “Mode-Based Graphical User Interfaces For Touch Sensitive Input Devices,” filed Jan. 18, 2005; (6) U.S. patent application Ser. No. 11/228,758, “Virtual Input Device Placement On A Touch Screen User Interface,” filed Sep. 16, 2005; (7) U.S. patent application Ser. No. 11/228,700, “Operation Of A Computer With A Touch Screen Interface,” filed Sep. 16, 2005; (8) U.S. patent application Ser. No. 11/228,737, “Activating Virtual Keys Of A Touch-Screen Virtual Keyboard,” filed Sep. 16, 2005; and (9) U.S. patent application Ser. No. 11/367,749, “Multi-Functional Hand-Held Device,” filed Mar. 3, 2006. All of these applications are incorporated by reference herein in their entirety. 
     The touch screen  112  may have a resolution in excess of 100 dpi. In an exemplary embodiment, the touch screen has a resolution of approximately 160 dpi. The user may make contact with the touch screen  112  using any suitable object or appendage, such as a stylus, a finger, and so forth. In some embodiments, the user interface is designed to work primarily with finger-based contacts and gestures, which are much less precise than stylus-based input due to the larger area of contact of a finger on the touch screen. In some embodiments, the device translates the rough finger-based input into a precise pointer/cursor position or command for performing the actions desired by the user. 
     In some embodiments, in addition to the touch screen, the device  100  may include a touchpad (not shown) for activating or deactivating particular functions. In some embodiments, the touchpad is a touch-sensitive area of the device that, unlike the touch screen, does not display visual output. The touchpad may be a touch-sensitive surface that is separate from the touch screen  112  or an extension of the touch-sensitive surface formed by the touch screen. 
     In some embodiments, the device  100  may include a physical or virtual click wheel as an input control device  116 . A user may navigate among and interact with one or more graphical objects (e.g., icons) displayed in the touch screen  112  by rotating the click wheel or by moving a point of contact with the click wheel (e.g., where the amount of movement of the point of contact is measured by its angular displacement with respect to a center point of the click wheel). The click wheel may also be used to select one or more of the displayed icons. For example, the user may press down on at least a portion of the click wheel or an associated button. User commands and navigation commands provided by the user via the click wheel may be processed by an input controller  160  as well as one or more of the modules and/or sets of instructions in memory  102 . For a virtual click wheel, the click wheel and click wheel controller may be part of the touch screen  112  and the display controller  156 , respectively. For a virtual click wheel, the click wheel may be either an opaque or semitransparent object that appears and disappears on the touch screen display in response to user interaction with the device. In some embodiments, a virtual click wheel is displayed on the touch screen of a portable multifunction device and operated by user contact with the touch screen. 
     The device  100  also includes a power system  162  for powering the various components. The power system  162  may include a power management system, one or more power sources (e.g., battery, alternating current (AC)), a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator (e.g., a light-emitting diode (LED)) and any other components associated with the generation, management and distribution of power in portable devices. 
     The device  100  may also include one or more optical sensors  164 .  FIGS. 1A and 1B  show an optical sensor coupled to an optical sensor controller  158  in I/O subsystem  106 . The optical sensor  164  may include charge-coupled device (CCD) or complementary metal-oxide semiconductor (CMOS) phototransistors. The optical sensor  164  receives light from the environment, projected through one or more lens, and converts the light to data representing an image. In conjunction with an imaging module  143  (also called a camera module), the optical sensor  164  may capture still images or video. In some embodiments, an optical sensor is located on the back of the device  100 , opposite the touch screen display  112  on the front of the device, so that the touch screen display may be used as a viewfinder for still and/or video image acquisition. In some embodiments, an optical sensor is located on the front of the device so that the user&#39;s image may be obtained for videoconferencing while the user views the other video conference participants on the touch screen display. In some embodiments, the position of the optical sensor  164  can be changed by the user (e.g., by rotating the lens and the sensor in the device housing) so that a single optical sensor  164  may be used along with the touch screen display for both video conferencing and still and/or video image acquisition. 
     The device  100  may also include one or more proximity sensors  166 .  FIGS. 1A and 1B  show a proximity sensor  166  coupled to the peripherals interface  118 . Alternately, the proximity sensor  166  may be coupled to an input controller  160  in the I/O subsystem  106 . The proximity sensor  166  may perform as described in U.S. patent application Ser. No. 11/241,839, “Proximity Detector In Handheld Device”; Ser. No. 11/240,788, “Proximity Detector In Handheld Device”; Ser. No. 11/620,702, “Using Ambient Light Sensor To Augment Proximity Sensor Output”; Ser. No. 11/586,862, “Automated Response To And Sensing Of User Activity In Portable Devices”; and Ser. No. 11/638,251, “Methods And Systems For Automatic Configuration Of Peripherals,” which are hereby incorporated by reference in their entirety. In some embodiments, the proximity sensor turns off and disables the touch screen  112  when the multifunction device is placed near the user&#39;s ear (e.g., when the user is making a phone call). 
     The device  100  may also include one or more accelerometers  168 .  FIGS. 1A and 1B  show an accelerometer  168  coupled to the peripherals interface  118 . Alternately, the accelerometer  168  may be coupled to an input controller  160  in the I/O subsystem  106 . The accelerometer  168  may perform as described in U.S. Patent Publication No. 20050190059, “Acceleration-based Theft Detection System for Portable Electronic Devices,” and U.S. Patent Publication No. 20060017692, “Methods And Apparatuses For Operating A Portable Device Based On An Accelerometer,” both of which are incorporated by reference herein in their entirety. In some embodiments, information is displayed on the touch screen display in a portrait view or a landscape view based on an analysis of data received from the one or more accelerometers. 
     In some embodiments, the software components stored in memory  102  may include an operating system  126 , a communication module (or set of instructions)  128 , a contact/motion module (or set of instructions)  130 , a graphics module (or set of instructions)  132 , a text input module (or set of instructions)  134 , a Global Positioning System (GPS) module (or set of instructions)  135 , and applications (or set of instructions)  136 . 
     The operating system  126  (e.g., Darwin, RTXC, LINUX, UNIX, OS X, WINDOWS, or an embedded operating system such as VxWorks) includes various software components and/or drivers for controlling and managing general system tasks (e.g., memory management, storage device control, power management, etc.) and facilitates communication between various hardware and software components. 
     The communication module  128  facilitates communication with other devices over one or more external ports  124  and also includes various software components for handling data received by the RF circuitry  108  and/or the external port  124 . The external port  124  (e.g., Universal Serial Bus (USB), FIREWIRE, etc.) is adapted for coupling directly to other devices or indirectly over a network (e.g., the Internet, wireless LAN, etc.). In some embodiments, the external port is a multi-pin (e.g., 30-pin) connector that is the same as, or similar to and/or compatible with the 30-pin connector used on iPod (trademark of Apple, Inc.) devices. 
     The contact/motion module  130  may detect contact with the touch screen  112  (in conjunction with the display controller  156 ) and other touch sensitive devices (e.g., a touchpad or physical click wheel). The contact/motion module  130  includes various software components for performing various operations related to detection of contact, such as determining if contact has occurred (e.g., detecting a finger-down event), determining if there is movement of the contact and tracking the movement across the touch-sensitive surface (e.g., detecting one or more finger-dragging events), and determining if the contact has ceased (e.g., detecting a finger-up event or a break in contact). The contact/motion module  130  receives contact data from the touch-sensitive surface. Determining movement of the point of contact, which is represented by a series of contact data, may include determining speed (magnitude), velocity (magnitude and direction), and/or an acceleration (a change in magnitude and/or direction) of the point of contact. These operations may be applied to single contacts (e.g., one finger contacts) or to multiple simultaneous contacts (e.g., “multitouch”/multiple finger contacts). In some embodiments, the contact/motion module  130  and the display controller  156  detects contact on a touchpad. In some embodiments, the contact/motion module  130  and the controller  160  detects contact on a click wheel. 
     The contact/motion module  130  may detect a gesture input by a user. Different gestures on the touch-sensitive surface have different contact patterns. Thus, a gesture may be detected by detecting a particular contact pattern. For example, detecting a finger tap gesture includes detecting a finger-down event followed by detecting a finger-up event at the same position (or substantially the same position) as the finger-down event (e.g., at the position of an icon). As another example, detecting a finger swipe gesture on the touch-sensitive surface includes detecting a finger-down event followed by detecting one or more finger-dragging events, and subsequently followed by detecting a finger-up event. 
     The graphics module  132  includes various known software components for rendering and displaying graphics on the touch screen  112  or other display, including components for changing the intensity of graphics that are displayed. As used herein, the term “graphics” includes any object that can be displayed to a user, including without limitation text, web pages, icons (such as user-interface objects including soft keys), digital images, videos, animations and the like. 
     In some embodiments, the graphics module  132  stores data representing graphics to be used. Each graphic may be assigned a corresponding code. The graphics module  132  receives, from applications etc., one or more codes specifying graphics to be displayed along with, if necessary, coordinate data and other graphic property data, and then generates screen image data to output to display controller  156 . 
     The text input module  134 , which may be a component of graphics module  132 , provides soft keyboards for entering text in various applications (e.g., contacts  137 , e-mail  140 , IM  141 , browser  147 , and any other application that needs text input). 
     The GPS module  135  determines the location of the device and provides this information for use in various applications (e.g., to telephone  138  for use in location-based dialing, to camera  143  as picture/video metadata, and to applications that provide location-based services such as weather widgets, local yellow page widgets, and map/navigation widgets). 
     The applications  136  may include the following modules (or sets of instructions), or a subset or superset thereof:
         a contacts module  137  (sometimes called an address book or contact list);   a telephone module  138 ;   a video conferencing module  139 ;   an e-mail client module  140 ;   an instant messaging (IM) module  141 ;   a workout support module  142 ;   a camera module  143  for still and/or video images;   an image management module  144 ;   a video player module  145 ;   a music player module  146 ;   a browser module  147 ;   a calendar module  148 ;   widget modules  149 , which may include weather widget  149 - 1 , stocks widget  149 - 2 , calculator widget  149 - 3 , alarm clock widget  149 - 4 , dictionary widget  149 - 5 , and other widgets obtained by the user, as well as user-created widgets  149 - 6 ;   widget creator module  150  for making user-created widgets  149 - 6 ;   search module  151 ;   video and music player module  152 , which merges video player module  145  and music player module  146 ;   notes module  153 ;   map module  154 ; and/or   online video module  155 .       

     Examples of other applications  136  that may be stored in memory  102  include other word processing applications, other image editing applications, drawing applications, presentation applications, JAVA-enabled applications, encryption, digital rights management, voice recognition, and voice replication. 
     In conjunction with touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , the contacts module  137  may be used to manage an address book or contact list, including: adding name(s) to the address book; deleting name(s) from the address book; associating telephone number(s), e-mail address(es), physical address(es) or other information with a name; associating an image with a name; categorizing and sorting names; providing telephone numbers or e-mail addresses to initiate and/or facilitate communications by telephone  138 , video conference  139 , e-mail  140 , or IM  141 ; and so forth. 
     In conjunction with RF circuitry  108 , audio circuitry  110 , speaker  111 , microphone  113 , touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , the telephone module  138  may be used to enter a sequence of characters corresponding to a telephone number, access one or more telephone numbers in the address book  137 , modify a telephone number that has been entered, dial a respective telephone number, conduct a conversation and disconnect or hang up when the conversation is completed. As noted above, the wireless communication may use any of a plurality of communications standards, protocols and technologies. 
     In conjunction with RF circuitry  108 , audio circuitry  110 , speaker  111 , microphone  113 , touch screen  112 , display controller  156 , optical sensor  164 , optical sensor controller  158 , contact module  130 , graphics module  132 , text input module  134 , contact list  137 , and telephone module  138 , the videoconferencing module  139  may be used to initiate, conduct, and terminate a video conference between a user and one or more other participants. 
     In conjunction with RF circuitry  108 , touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , the e-mail client module  140  may be used to create, send, receive, and manage e-mail. In conjunction with image management module  144 , the e-mail module  140  makes it very easy to create and send e-mails with still or video images taken with camera module  143 . 
     In conjunction with RF circuitry  108 , touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , the instant messaging module  141  may be used to enter a sequence of characters corresponding to an instant message, to modify previously entered characters, to transmit a respective instant message (for example, using a Short Message Service (SMS) or Multimedia Message Service (MMS) protocol for telephony-based instant messages or using XMPP, SIMPLE, or IMPS for Internet-based instant messages), to receive instant messages and to view received instant messages. In some embodiments, transmitted and/or received instant messages may include graphics, photos, audio files, video files and/or other attachments as are supported in a MMS and/or an Enhanced Messaging Service (EMS). As used herein, “instant messaging” refers to both telephony-based messages (e.g., messages sent using SMS or MMS) and Internet-based messages (e.g., messages sent using XMPP, SIMPLE, or IMPS). 
     In conjunction with RF circuitry  108 , touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , text input module  134 , GPS module  135 , map module  154 , and music player module  146 , the workout support module  142  may be used to create workouts (e.g., with time, distance, and/or calorie burning goals); communicate with workout sensors (sports devices); receive workout sensor data; calibrate sensors used to monitor a workout; select and play music for a workout; and display, store and transmit workout data. 
     In conjunction with touch screen  112 , display controller  156 , optical sensor(s)  164 , optical sensor controller  158 , contact module  130 , graphics module  132 , and image management module  144 , the camera module  143  may be used to capture still images or video (including a video stream) and store them into memory  102 , modify characteristics of a still image or video, or delete a still image or video from memory  102 . 
     In conjunction with touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , text input module  134 , and camera module  143 , the image management module  144  may be used to arrange, modify (e.g., edit), or otherwise manipulate, label, delete, present (e.g., in a digital slide show or album), and store still and/or video images. 
     In conjunction with touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , audio circuitry  110 , and speaker  111 , the video player module  145  may be used to display, present or otherwise play back videos (e.g., on the touch screen or on an external, connected display via external port  124 ). 
     In conjunction with touch screen  112 , display system controller  156 , contact module  130 , graphics module  132 , audio circuitry  110 , speaker  111 , RF circuitry  108 , and browser module  147 , the music player module  146  allows the user to download and play back recorded music and other sound files stored in one or more file formats, such as MP3 or AAC files. In some embodiments, the device  100  may include the functionality of an MP3 player, such as an iPod (trademark of Apple, Inc.). 
     In conjunction with RF circuitry  108 , touch screen  112 , display system controller  156 , contact module  130 , graphics module  132 , and text input module  134 , the browser module  147  may be used to browse the Internet, including searching, linking to, receiving, and displaying web pages or portions thereof, as well as attachments and other files linked to web pages. 
     In conjunction with RF circuitry  108 , touch screen  112 , display system controller  156 , contact module  130 , graphics module  132 , text input module  134 , e-mail module  140 , and browser module  147 , the calendar module  148  may be used to create, display, modify, and store calendars and data associated with calendars (e.g., calendar entries, to do lists, etc.). 
     In conjunction with RF circuitry  108 , touch screen  112 , display system controller  156 , contact module  130 , graphics module  132 , text input module  134 , and browser module  147 , the widget modules  149  are mini-applications that may be downloaded and used by a user (e.g., weather widget  149 - 1 , stocks widget  149 - 2 , calculator widget  149 - 3 , alarm clock widget  149 - 4 , and dictionary widget  149 - 5 ) or created by the user (e.g., user-created widget  149 - 6 ). In some embodiments, a widget includes an HTML (Hypertext Markup Language) file, a CSS (Cascading Style Sheets) file, and a JavaScript file. In some embodiments, a widget includes an XML (Extensible Markup Language) file and a JavaScript file (e.g., Yahoo! Widgets). 
     In conjunction with RF circuitry  108 , touch screen  112 , display system controller  156 , contact module  130 , graphics module  132 , text input module  134 , and browser module  147 , the widget creator module  150  may be used by a user to create widgets (e.g., turning a user-specified portion of a web page into a widget). 
     In conjunction with touch screen  112 , display system controller  156 , contact module  130 , graphics module  132 , and text input module  134 , the search module  151  may be used to search for text, music, sound, image, video, and/or other files in memory  102  that match one or more search criteria (e.g., one or more user-specified search terms). 
     In conjunction with touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , the notes module  153  may be used to create and manage notes, to do lists, and the like. 
     In conjunction with RF circuitry  108 , touch screen  112 , display system controller  156 , contact module  130 , graphics module  132 , text input module  134 , GPS module  135 , and browser module  147 , the map module  154  may be used to receive, display, modify, and store maps and data associated with maps (e.g., driving directions; data on stores and other points of interest at or near a particular location; and other location-based data). 
     In conjunction with touch screen  112 , display system controller  156 , contact module  130 , graphics module  132 , audio circuitry  110 , speaker  111 , RF circuitry  108 , text input module  134 , e-mail client module  140 , and browser module  147 , the online video module  155  allows the user to access, browse, receive (e.g., by streaming and/or download), play back (e.g., on the touch screen or on an external, connected display via external port  124 ), send an e-mail with a link to a particular online video, and otherwise manage online videos in one or more file formats, such as H.264. In some embodiments, instant messaging module  141 , rather than e-mail client module  140 , is used to send a link to a particular online video. Additional description of the online video application can be found in U.S. Provisional Patent Application No. 60/936,562, “Portable Multifunction Device, Method, and Graphical User Interface for Playing Online Videos,” filed Jun. 20, 2007, and U.S. patent application Ser. No. 11/968,067, “Portable Multifunction Device, Method, and Graphical User Interface for Playing Online Videos,” filed Dec. 31, 2007, the content of which is hereby incorporated by reference in its entirety. 
     Each of the above identified modules and applications correspond to a set of executable instructions for performing one or more functions described above and the methods described in this application (e.g., the computer-implemented methods and other information processing methods described herein). These modules (i.e., sets of instructions) need not be implemented as separate software programs, procedures or modules, and thus various subsets of these modules may be combined or otherwise re-arranged in various embodiments. For example, video player module  145  may be combined with music player module  146  into a single module (e.g., video and music player module  152 ,  FIG. 1B ). In some embodiments, memory  102  may store a subset of the modules and data structures identified above. Furthermore, memory  102  may store additional modules and data structures not described above. 
     In some embodiments, the device  100  is a device where operation of a predefined set of functions on the device is performed exclusively through a touch screen  112  and/or a touchpad. By using a touch screen and/or a touchpad as the primary input/control device for operation of the device  100 , the number of physical input/control devices (such as push buttons, dials, and the like) on the device  100  may be reduced. 
     The predefined set of functions that may be performed exclusively through a touch screen and/or a touchpad include navigation between user interfaces. In some embodiments, the touchpad, when touched by the user, navigates the device  100  to a main, home, or root menu from any user interface that may be displayed on the device  100 . In such embodiments, the touchpad may be referred to as a “menu button.” In some other embodiments, the menu button may be a physical push button or other physical input/control device instead of a touchpad. 
       FIG. 2  illustrates a portable multifunction device  100  having a touch screen  112  in accordance with some embodiments. The touch screen may display one or more graphics within user interface (UI)  200 . In this embodiment, as well as others described below, a user may select one or more of the graphics by making contact or touching the graphics, for example, with one or more fingers  202  (not drawn to scale in the figure) or one or more styluses  203  (not drawn to scale in the figure). In some embodiments, selection of one or more graphics occurs when the user breaks contact with the one or more graphics. In some embodiments, the contact may include a gesture, such as one or more taps, one or more swipes (from left to right, right to left, upward and/or downward) and/or a rolling of a finger (from right to left, left to right, upward and/or downward) that has made contact with the device  100 . In some embodiments, inadvertent contact with a graphic may not select the graphic. For example, a swipe gesture that sweeps over an application icon may not select the corresponding application when the gesture corresponding to selection is a tap. 
     The device  100  may also include one or more physical buttons, such as “home” or menu button  204 . As described previously, the menu button  204  may be used to navigate to any application  136  in a set of applications that may be executed on the device  100 . Alternatively, in some embodiments, the menu button is implemented as a soft key in a GUI in touch screen  112 . 
     In one embodiment, the device  100  includes a touch screen  112 , a menu button  204 , a push button  206  for powering the device on/off and locking the device, volume adjustment button(s)  208 , a Subscriber Identity Module (SIM) card slot  210 , a head set jack  212 , and a docking/charging external port  124 . The push button  206  may be used to turn the power on/off on the device by depressing the button and holding the button in the depressed state for a predefined time interval; to lock the device by depressing the button and releasing the button before the predefined time interval has elapsed; and/or to unlock the device or initiate an unlock process. In an alternative embodiment, the device  100  also may accept verbal input for activation or deactivation of some functions through the microphone  113 . 
       FIG. 3  is a block diagram of an exemplary computing device with a display and a touch-sensitive surface in accordance with some embodiments. Device  300  need not be portable. In some embodiments, the device  300  is a laptop computer, a desktop computer, a table computer, a multimedia player device, a navigation device, an educational device (such as a child&#39;s learning toy), a gaming system, or a control device (e.g., a home or industrial controller). The device  300  typically includes one or more processing units (CPU&#39;s)  310 , one or more network or other communications interfaces  360 , memory  370 , and one or more communication buses  320  for interconnecting these components. The communication buses  320  may include circuitry (sometimes called a chipset) that interconnects and controls communications between system components. The device  300  includes an input/output (I/O) interface  330  comprising a touch screen display  112 . The I/O interface  330  also may include a keyboard and/or mouse (or other pointing device)  350  and a touchpad  355 . Memory  370  includes high-speed random access memory, such as DRAM, SRAM, DDR RAM or other random access solid state memory devices; and may include non-volatile memory, such as one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, or other non-volatile solid state storage devices. Memory  370  may optionally include one or more storage devices remotely located from the CPU(s)  310 . In some embodiments, memory  370  stores programs, modules, and data structures analogous to the programs, modules, and data structures stored in the memory  102  of portable multifunction device  100  ( FIG. 1 ), or a subset thereof. Furthermore, memory  370  may store additional programs, modules, and data structures not present in the memory  102  of portable multifunction device  100 . For example, memory  370  of device  300  may store drawing module  380 , presentation module  382 , word processing module  384 , website creation module  386 , disk authoring module  388 , and/or spreadsheet module  390 , while memory  102  of portable multifunction device  100  ( FIG. 1 ) may not store these modules. 
     Each of the above identified elements in  FIG. 3  may be stored in one or more of the previously mentioned memory devices. Each of the above identified modules corresponds to a set of instructions for performing a function described above. The above identified modules or programs (i.e., sets of instructions) need not be implemented as separate software programs, procedures or modules, and thus various subsets of these modules may be combined or otherwise re-arranged in various embodiments. In some embodiments, memory  370  may store a subset of the modules and data structures identified above. Furthermore, memory  370  may store additional modules and data structures not described above. 
     Attention is now directed towards embodiments of user interfaces (“UI”) that may be implemented on a portable multifunction device  100 . 
       FIGS. 4A and 4B  illustrate exemplary user interfaces for a menu of applications on a portable multifunction device  100  in accordance with some embodiments. Similar user interfaces may be implemented on device  300 . In some embodiments, user interface  400 A and/or  400 B includes the following elements, or a subset or superset thereof:
         Signal strength indicator(s)  402  for wireless communication(s), such as cellular and Wi-Fi signals;   Time  404 ;   Bluetooth indicator  405 ;   Battery status indicator  406 ;   Tray  408  with icons for frequently used applications, such as:
           Phone  138 , which may include an indicator  414  of the number of missed calls or voicemail messages;   E-mail client  140 , which may include an indicator  410  of the number of unread e-mails;   Browser  147 ; and   Music player  146 ; and   
           Icons for other applications, such as:
           IM  141 ;   Image management  144 ;   Camera  143 ;   Video player  145 ;   Weather  149 - 1 ;   Stocks  149 - 2 ;   Workout support  142 ;   Calendar  148 ;   Calculator  149 - 3 ;   Alarm clock  149 - 4 ;   Dictionary  149 - 5 ; and   User-created widget  149 - 6 .   
               

     In some embodiments, user interface  400 B includes the following elements, or a subset or superset thereof:
           402 ,  404 ,  405 ,  406 ,  141 ,  148 ,  144 ,  143 ,  149 - 3 ,  149 - 2 ,  149 - 1 ,  149 - 4 ,  410 ,  414 ,  138 ,  140 , and  147 , as described above;   Map  154 ;   Notes  153 ;   Settings  412 , which provides access to settings for the device  100  and its various applications  136 , as described further below;   Video and music player module  152 , also referred to as iPod (trademark of Apple, Inc.) module  152 ; and   Online video module  155 , also referred to as YouTube (trademark of Google, Inc.) module  155 .       

       FIG. 4C  illustrates an exemplary user interface on a device (e.g., device  300 ,  FIG. 3 ) with a touch-sensitive surface  451  (e.g., a tablet or touchpad  355 ,  FIG. 3 ) that is separate from the display  450  (e.g., touch screen display  112 ,  FIG. 3 ) for resizing an array (e.g.,  456 ) of a plurality of arrays (e.g.,  454 ,  456  and  458 ) of user interface objects, without resizing another array (e.g.,  454 ) of the plurality of arrays in response to an input from the user (e.g., enlarging the array in response to a depinch gesture that includes contacts  460  and  462  with the touch sensitive surface  451 ). 
     Although many of the examples which follow will be given with reference to inputs on a touch screen display  112  (where the touch sensitive surface and the display are combined), in some embodiments, the device detects inputs on a touch-sensitive surface that is separate from the display, as shown in  FIG. 4C . In some embodiments the touch sensitive surface (e.g.,  451  in  FIG. 4C ) has a primary axis (e.g.,  452  in  FIG. 4C ) that corresponds to a primary axis (e.g.,  453  in  FIG. 4C ) on the display (e.g.,  450 ). In accordance with these embodiments, the device detects a plurality of simultaneous contacts (e.g.,  460  and  462  in  FIG. 4C ) with the touch-sensitive surface  451  at locations that correspond to respective locations on the display (e.g., in  FIG. 4C , contact location  460  corresponds to location  468  on display  450  and contact location  462  corresponds to location  470  on display  450 ). 
     In the present example, as shown in  FIG. 4C , locations (e.g.,  468  and  470 ) on the display  450  that correspond to the simultaneous contacts (e.g.,  460  and  462 ) are located proximate to one of the plurality of arrays (e.g., array  456 ) of user interface objects (e.g., images S 1 -S 30 ) on the display (e.g.,  450  in  FIG. 4C ). While continuing to detect the simultaneous user inputs, the device detects a depinching gesture including movement (e.g.,  464  and  466 ) of at the simultaneous contacts (e.g.,  460  and  462 ) on the touch-sensitive surface away from each other, which corresponds to a depinching gesture including corresponding movement (e.g.,  472  and  474 , respectively) of corresponding locations (e.g.,  468  and  470 , respectively) on the display away from each other. In response, the device expands the array (e.g.,  456  in  FIG. 4C ) that is proximate to the locations (e.g.,  470  and  472 ) which correspond to the contacts (e.g.,  460  and  462 ) on the touch-sensitive surface (e.g.,  451  in  FIG. 4C ). In this way, user inputs (e.g., contacts  460  and  462 ) detected by the device on the touch-sensitive surface (e.g.,  451  in  FIG. 4C ) are used by the device to manipulate user interface objects on the display (e.g.,  450  in  FIG. 4C ) of the multifunction device when the touch-sensitive surface is separate from the display. It should be understood that similar methods can be used for other user interfaces described herein. 
     Additionally, while the following examples are given primarily with reference to finger inputs (e.g., finger contacts, finger tap gestures, finger swipe gestures), it should be understood that, in some embodiments, one or more of the finger inputs are replaced with input from another input device (e.g., a mouse based input or stylus input). For example, a swipe gesture may be replaced with a mouse click (e.g., instead of a contact) followed by movement of the cursor along the path of the swipe (e.g., instead of movement of the contact). As another example, a tap gesture may be replaced with a mouse click while the cursor is located over the location of the tap gesture (e.g., instead of detection of the contact followed by ceasing to detect the contact). Similarly, when multiple user inputs are simultaneously detected, it should be understood that multiple computer mice may be used simultaneously, or a mouse and finger contacts may be used simultaneously. 
     Attention is now directed towards embodiments of user interfaces (“UI”) and associated processes that may be implemented on a computing device with a touch screen display, such as device  300  or portable multifunction device  100 . 
       FIGS. 5A-5Y  illustrate exemplary user interfaces for moving one or more user interface objects to a destination object and performing an action associated with the destination object on the one or more user interface objects in accordance with some embodiments. The user interfaces in these figures are used to illustrate the processes described below, including the processes in  FIGS. 9A-9D and 10A-10B . 
       FIGS. 5A-5G  illustrate user interfaces for detecting a first user input (e.g., contact  5054 ,  FIG. 5B ) on a destination object (e.g., the label icon “Little Wesley”  5030 ); detecting a second user input on a user interface object (e.g., tap gesture  5056  on digital image D 5  in  FIG. 5C ) while still detecting the first input; and performing an action associated with the destination object on the user interface object (e.g., giving image D 5  the label “Little Wesley”  5030 ). 
       FIGS. 5G-5J  illustrate user interfaces for undoing an action associated with a selected destination object (e.g., the label icon “Little Wesley”  5030 ) in response to detecting a user input on a residual image of the user interface object (e.g., shaded image D 5  in  FIG. 5H ) while still detecting the first input (e.g., contact  5054 ). In response to detecting tap gesture  5066  in  FIG. 5H  on the residual image of D 5 , digital image D 5  will not be given the label “Little Wesley”  5030  and image D 5  replaces its residual image ( FIG. 5J ). 
       FIGS. 5J-5N  illustrate user interfaces for performing a hide operation on a plurality of user interface objects (e.g., images B 5  and B 12 ) in an array  5060  of user interface objects in response to detecting user inputs (e.g., tap gestures  5072  ( FIG. 5K ) and  5076  ( FIG. 5L )) on the user interface objects (B 5  and B 12 ) while continuing to detect a user input (e.g., contact  5070 ) on a destination object associated with a hide command (e.g., hide icon  5048 ). 
       FIGS. 50-5T  illustrate user interfaces for responding to detecting a user input (e.g., contact  5082 ) on a destination object (e.g., the label icon “Little Wesley”  5030 ) and then, while still detecting the user input on the destination object, detecting one or more user inputs (e.g., tap gesture  5084  in  FIG. 5O , tap gesture  5088  in  FIG. 5P , and swipe gesture with contact  5092  and movement  5094  in  FIG. 5Q ) on a plurality of user interface objects (e.g., digital images D 11 , D 3 , D 6 , D 6 , D 12 , D 15 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , and D 36 ) by performing an action associated with the destination object on the plurality of user interface objects (e.g., giving images D 11 , D 3 , D 6 , D 6 , D 12 , D 15 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , and D 36  the label “Little Wesley”  5030 ). 
       FIGS. 5T-5X  illustrate user interfaces for responding to user inputs (e.g., tap gesture  5098  ( FIG. 5T ) and a swipe gesture that includes contact  5102  and movement  5104  of the contact ( FIG. 5V )) on residual images of user interface objects (e.g., shaded images D 3 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , D 36  in  FIG. 5T ) by undoing an action associated with a destination object (e.g., the label icon “Little Wesley”  5030 ) while continuing to detect a user input (e.g., contact  5082 ) with the destination object. In response to detecting tap gesture  5098  ( FIG. 5T ) and the swipe gesture ( FIG. 5V ) on the residual images of D 3 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , and D 36 , digital images D 3 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , and D 36  will not be given the label “Little Wesley”  5030  and images D 3 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , and D 36  replace their respective residual images ( FIG. 5X ). 
       FIGS. 5X-5Y  illustrate a change in the user interface after performing an action associated with a destination object  5030  on a plurality of selected user interface objects (e.g., images D 6 , D 9 , D 11 , D 12 , D 15 ) in response to ceasing the detect a user input (e.g., contact  5082  in  FIG. 5X ) on the destination object  5030 . After the user releases contact  5082  with the icon  5030  in  FIG. 5X , the device ceases to display the residual images of the user interface objects, and the original user interface objects are displayed in their initial user interface locations ( FIG. 5Y ). In this example, the residual images indicate to a user which images will be labeled “Little Wesley” when the device detects lift off of contact  5082 . After lift off of contact  5082 , the residual images are replaced with the original objects because all of the original objects D 1 -D 36  and D 7 - r  are still part of the “Day at the zoo” event. 
       FIGS. 6A-6X  illustrate exemplary user interfaces for forming a group of user interface objects, moving the group to a destination object or an area associated with a destination object, and performing an action associated with the destination object on the group of user interface objects in accordance with some embodiments. The user interfaces in these figures are used to illustrate the processes described below, including the processes in  FIGS. 11A-11B and 12A-12B . 
       FIGS. 6A-6G  illustrate exemplary user interfaces for forming a group of two or more user interface objects by selecting a user interface object (e.g., image D 27 ,  FIG. 6B ) from an array  6078  of user interface objects and dragging the selected object off of the array (e.g., in response to detecting contact  6052 - 1  in  FIG. 6B  with image D 27  and movement  6054  of the contact off of the array in  FIG. 6C ). Subsequently, additional user interface objects (e.g., images D 24  and D 28 ) are grouped with the selected object in response to user inputs (e.g., tap gestures  6056  in  FIG. 6D and 6062  in  FIG. 6F ) on the additional user interface objects. 
       FIGS. 6H-6I  illustrate exemplary user interfaces for removing a user interface object (e.g., image D 24 ) from the group of two or more user interface objects in response to detecting a user input (e.g., tap gesture  6066  in  FIG. 6H ) with a residual image of the user interface object (e.g., shaded image D 24 ). In response to detecting tap gesture  6066  in  FIG. 6H  on the residual image of D 24 , digital image D 24  is removed from the group of images (D 27  and D 28 ) and image D 24  replaces its residual image ( FIG. 6I ). 
       FIGS. 6I-6M  illustrate exemplary use interfaces for initiating performance of an action on the group of user interface objects (e.g., images D 27  and D 28 ). In  FIG. 6J , in response to detecting a drag gesture that includes contact  6052  and movement  6070  to the Printer destination object  6042 , printing of images D 27  and D 28  is initiated. In  FIGS. 6K-6M , in response to detecting movement  6074  of the group to an area  6076  associated with destination object  6008 , images D 27  and D 28  are made part of the array  6072  of images for the School garden event  6008 . 
       FIGS. 6N-6Q  illustrate exemplary user interfaces for forming a group of more than two user interface objects by selecting a user interface object (e.g., image D 31 ,  FIG. 6N ) from an array  6078  of user interface objects and dragging the selected object off of the array (e.g., in response to detecting contact  6100 - 1  with image D 31  and movement  6102  of the contact off of the array in  FIG. 6N ). Subsequently, additional user interface objects (e.g., images D 10 , D 13 , D 16 , D 19 , D 22 , D 25 , D 30 , D 33 , and D 36 ) are grouped with the selected object in response to user inputs (e.g., a swipe gesture that includes contact  6104  and movement  6106  of the contact in  FIG. 6O ) on the additional user interface objects. 
       FIGS. 6Q-6S  illustrate-exemplary user interfaces for removing a user interface object (e.g., image D 25 ) from the group of more than two user interface objects in response to detecting a user input (e.g., tap gesture  6110  in  FIG. 6Q ) with a residual image of the user interface object (e.g., shaded image D 25  in  FIG. 6Q ). In response to detecting tap gesture  6110  in  FIG. 6Q  on the residual image of D 25 , digital image D 25  is removed from the group of images (D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33 , and D 36 ) and image D 25  replaces its residual image ( FIG. 6I ). 
       FIGS. 6S-6X  illustrate exemplary use interfaces for initiating performance of an action on the group of user interface objects (e.g., images D 10 , D 13 , D 16 , D 19 , D 22 , D 30 -D 31 , D 33 , and D 36 ). In  FIG. 6S , in response to detecting a drag gesture that includes contact  6100  and movement  6114  to the School garden event destination object  6008 , images D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33 , and D 36  are made part of the array  6072  of images for the School garden event  6008  ( FIG. 6X ). In  FIGS. 6T-6X , in response to detecting movement  6116  of the group to an area  6076  associated with destination object  6008 , images D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33 , and D 36  are made part of the array  6072  of images for the School garden event  6008 . 
       FIGS. 7A-7O  illustrate exemplary user interfaces for zooming (e.g., zooming in) and rearranging user interface objects in an array with a multifinger gesture in accordance with some embodiments. The user interfaces in these figures are used to illustrate the processes described below, including the processes in  FIGS. 13A-13B . 
       FIGS. 7A-7D  illustrate exemplary user interfaces for zooming user interface objects (e.g., images S 1 -S 41  in array  7002 ) in response to detecting a multifinger gesture (e.g., a depinching gesture made with contacts  7004  and  7006 ). 
       FIGS. 7D-7I  illustrate exemplary user interfaces for rearranging user interface objects (e.g., images S 1 -S 41 ) in response to detecting a release of user inputs (e.g., contacts  7004 - 2  and  7006 - 2  in  FIG. 7D ) after enlarging the array of user interface objects. Image S 23 , which was located at the centroid of the depinch gesture, is easy to locate after the rearrangement because it maintains its vertical position on the display, 
       FIGS. 7I-7J  illustrate exemplary user interfaces for zooming (e.g., zooming out) user interface objects (e.g., images S 1 -S 41  in array  7002 ) in response to detecting a multifinger gesture (e.g., a pinching gesture made with contacts  7016  and  7018 ). 
       FIGS. 7J-7K  illustrate exemplary user interfaces for changing the vertical position of the array of user interface objects (e.g., images S 1 -S 41  in array  7002 ) in response to detecting a vertical change in the position of the centroid (e.g.,  7020 ) of a plurality of user inputs (e.g., contacts  7016  and  7018 ). 
       FIGS. 7K-7O  illustrate exemplary user interfaces for rearranging user interface objects (e.g., images S 1 -S 41 ) in response to detecting a release of user inputs (e.g., contacts  7016 - 3  and  7018 - 3  in  FIG. 7K ) after reducing the array of user interface objects. Image S 9 , which was located at the centroid of the pinch gesture, is easy to locate after the rearrangement because it maintains its vertical position on the display, 
       FIGS. 8A-8UU  illustrate exemplary user interfaces for manipulating user interface objects in a plurality of arrays of user interface objects in accordance with some embodiments. The user interfaces in these figures are used to illustrate the processes described below, including the processes in  FIGS. 14A-14I, 15A-15B, 16A-16B, and 17A-17B . 
       FIGS. 8A-8D  illustrate exemplary user interfaces for vertically scrolling a plurality of arrays (e.g., arrays  8052 ,  8054 ,  8064 , and  8066 ) of user interface objects in response to detecting a user input (e.g., a substantially vertical swipe gesture that includes contact  8060  and movement  8062  of the contact,  FIG. 8B ). 
       FIGS. 8D-8I  illustrate exemplary user interfaces for horizontally scrolling an array (e.g.,  8066 ) of user interface objects (e.g., images E 1 -E 74 ) without scrolling the other arrays (e.g., arrays  8052 ,  8054 , and  8064 ) of user interface objects in response to detecting a user input (e.g., a horizontal swipe gesture, such as contact  8070  and movement  8072  of the contact in  FIG. 8D  or contact  8080  and movement  8082  of the contact in  FIG. 8G ).  FIGS. 8E-8F  illustrate a rubber-band-like effect to indicate that the end of array  8066  is being displayed during detection of a horizontal scrolling gesture.  FIGS. 8G-8H  illustrate a rubber-band-like effect to indicate that the beginning of array  8066  is being displayed during detection of a horizontal scrolling gesture. 
       FIGS. 8I-8K  illustrate exemplary user interfaces for scrolling a plurality of arrays (e.g.,  8052 ,  8054 ,  8064  and  8066 ) to a particular array (e.g.,  8052 ) in response to detecting a user input (e.g., tap gesture  8090  in  FIG. 8I ) on an array name icon (e.g.,  8008 ) that is associated with the particular array (e.g.,  8052 ). 
       FIGS. 8K-8P  illustrate exemplary user interfaces for resizing one array (e.g.,  8054 ) in the plurality of arrays, without resizing other arrays in the plurality of arrays in response to detecting an input from the user (e.g., enlarging array  8054  in response to detecting a depinch gesture that includes contacts  8096  and  8098  in  FIG. 8K , or reducing the size of array  8054  in response to detecting a pinch gesture that includes contacts  8108  and  8110  in  FIG. 8N ). 
       FIGS. 8P-8R  illustrate exemplary user interfaces for toggling the display of a representative user interface object (e.g., representative image S 33 - r ) for an array (e.g.,  8054 ) in response to detecting a user input on a representative user interface object toggle icon  8056  (e.g., tap gesture  8118  in  FIG. 8P  or a mouse click while a cursor  8120  is on the representative user interface object toggle icon  8056  in  FIG. 8Q ). These figures also illustrate exemplary user interfaces for rearranging the user interface objects (e.g., images S 1 -S 41 ) concurrently with toggling the display of the representative user interface object. 
       FIGS. 8R-8V  illustrate exemplary user interfaces for associating a user interface object (e.g., image D 17 ) in a first array  8052  of user interface objects with a second array  8054  of user interface objects in response to detecting a user input (e.g., contact  8122  and movement  8124  of the contact to an area  8126  associated with the array  8054  in  FIG. 8S ) and subsequent cessation of the input. In this example, image D 17  in the “Day at the zoo” event array  8052  is added to the “School garden” event array  8054 . 
       FIGS. 8V-8AA  illustrate exemplary user interfaces for selecting all of the user interface objects in an array (e.g., images D 1 -D 16 , D 18 -D 36  in array  8052 ,  FIG. 8V ) in response to detecting a user input (e.g., contact  8130 - 1 ,  FIG. 8V ) on an array name icon (e.g.,  8132 ) for the array. An action is performed on all of the selected user interface objects in response to detecting a user input (e.g., contact  8130  and movement  8132  of the contact to an area  8134  associated with the “Family reunion” event icon  8010  in  FIG. 8X ) and subsequent cessation of the input. In this example, all of the images from the “Day at the zoo” array  8052  are made part of the “Family reunion” array  8064 , as illustrated in  FIG. 8AA . 
       FIGS. 8AA-8DD  illustrate exemplary user interfaces for displaying a plurality of representative user interface icons (e.g., representative images B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r  in  FIGS. 8CC-8DD ) in response to detecting activation (e.g., by tap gesture  8140  in  FIG. 8AA ) of a respective menu category icon (e.g., Events icon  8002  in  FIG. 8AA ). 
       FIGS. 8CC and 8EE  illustrate exemplary user interfaces for responding to a user input (e.g., tap gesture  8142  in  FIG. 8CC ) on a representative user interface icon (e.g., representative image B 1 - r  in  FIG. 8CC  for the Birthday array  8144 ) by displaying the corresponding array (e.g.,  8144  in  FIG. 8EE ). 
       FIGS. 8FF-8JJ  illustrate exemplary user interfaces for, while detecting a user input (e.g., contact  8146 ) with a destination object (e.g., “Adorable children” label icon  8032 ), responding to a user input (e.g., tap gesture  8148  in  FIG. 8GG ) on an array name icon (e.g.,  8132 ) for an array (e.g.,  8052 ) of user interface objects by performing an action associated with the destination object (e.g.,  8032 ) on all of the user interface objects (e.g., images D 1 -D 16 , D 18 -D 36 ) in the array  8052  of user interface objects). In this example, images D 1 -D 16 , D 18 -D 36  in array  8052  would be given the label “Adorable children.” 
       FIGS. 8JJ-8LL  illustrate exemplary user interfaces for undoing an action associated with a selected destination object (e.g.,  8032 ) in response to detecting a user input (e.g., tap gesture  8150 ) on a residual image of a user interface object (e.g., shaded image D 12  in  FIG. 8JJ ). In this example, image D 12  will not be labeled “Adorable children” and the residual shaded image of D 12  ( FIG. 8JJ ) is replaced by the original unshaded image of D 12  ( FIG. 8LL ). 
       FIGS. 8MM-8NN  illustrate exemplary user interfaces for responding to a plurality of user inputs with a plurality of destination objects (e.g., tap gestures  8158 ,  8160  and  8162  on icons  8006 ,  8008  and  8032 , respectively), while continuing to detect a user input (e.g., contact  8154  in  FIG. 8MM ) with a user interface object (e.g., image B 26 ), by performing plurality of actions (e.g., an action associated with each of the destination objects  8006 ,  8008  and  8032 ) on the user interface object (e.g., adding image B 26  to the “Day at the zoo” array  8052  and the School garden array  8054  ( FIG. 8NN ), and adding the label “Adorable children” to image B 26 ). 
       FIGS. 8NN-8QQ  illustrate exemplary user interfaces for responding to a user input (e.g., double tap gesture  8164 ,  FIG. 8NN ) on a first user interface object (e.g., image D 29 ) in an array (e.g.,  8054 ) of user interface objects by displaying an enlarged representation of the first user interface object (e.g., image D 29 - f  in  FIG. 8OO ), and then displaying an enlarged representation of a second user interface object (e.g., image D 30 - f  in  FIGS. 8PP-8QQ ) that is adjacent to the first user interface object in the array in response to a user input (e.g., a swipe gesture that includes contact  8166  and movement  8168  of the contact,  FIG. 8OO ) on the enlarged representation of the first user interface object. 
       FIGS. 8OO and 8RR  illustrate exemplary user interfaces for responding to a user input (e.g., press and hold gesture  8172  in  FIG. 8OO ) on an enlarged representation of a user interface object (e.g., image D 29 - f  in  FIG. 8OO ) by displaying the enlarged representation of the user interface object (e.g., image D 29 - f  in  FIG. 8RR ) in cover flow mode. 
       FIGS. 8SS-8UU  illustrate exemplary user interfaces for responding to a user input (e.g., contact  8174  and subsequent movement  8176  of the contact in  FIG. 8SS ) on a user interface object (e.g., image D 22 ) in an array (e.g.,  8052 ) by replacing the current representative user interface object (e.g., representative image D 7 - r  in  FIG. 8SS ) for the array (e.g.  8052 ) with a new representative user interface object (e.g., representative image D 22 - r  in  FIG. 8UU ) that is a representation of the user interface object (e.g., image D 22 ) on which the user input was detected. 
       FIGS. 9A-9D  are flow diagrams illustrating a method  900  of moving one or more user interface objects to a destination object and performing an action associated with the destination object on the one or more user interface objects in accordance with some embodiments. The method  900  is performed at a computing device (e.g., device  300 , FIG.  3 , or portable multifunction device  100 ,  FIG. 1 ) with a touch screen display (e.g.,  112  in  FIGS. 5A-5J ). Some operations in method  900  may be combined and/or the order of some operations may be changed. 
     As described below, the method  900  provides an intuitive way to manipulate user interface objects in response to multiple simultaneous user inputs at a computing device with a touch screen display. The method reduces the cognitive burden on a user when providing instructions to perform an action on one or more of the user interface objects, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to perform actions on one or more user interface objects faster and more efficiently conserves power and increases the time between battery charges. 
     The device simultaneously displays ( 902 ) on the touch screen display (e.g.,  112  in  FIG. 5A ) a plurality of user interface objects (e.g., digital images B 1 -B 27 , B 1 - r  and/or D 1 -D 36 , D 7 - r  in  FIG. 5A ) and at least one destination object (e.g., icons  5004 ,  5006 ,  5008 ,  5010 ,  5012 ,  5014 ,  5016 ,  5018 ,  5020 ,  5022 ,  5024 ,  5028 ,  5030 ,  5032 ,  5034 ,  5038 ,  5040 ,  5042 ,  5044 ,  5046 ,  5048 , and/or  5050  in  FIG. 5A ). The user interface objects are ‘selectable objects’ (i.e., objects configured to be selectable by a user). 
     In some embodiments, the user interface objects (e.g., B 1 -B 27 , B 1 - r , D 1 -D 36 - r , etc.) are ( 904 ) digital images (e.g., photographic images and/or digital graphics). In some embodiments, the user interface objects are ( 906 ) digital content (e.g., digital images, videos, music albums or individual tracks, audio books, and/or podcasts). In some embodiments, the user interface objects are ( 908 ) electronic documents (e.g., word processing, spreadsheets, and/or presentation documents). In some embodiments, the user interface objects are ( 910 ) folders (e.g., user interface objects that represent a collection of other user interface objects in a hierarchical directory). For example, if user interface object B 1  is a folder in a hierarchical directory structure, then selection and activation of user interface object B 1  will display the contents of the folder (e.g., user interface objects associated with files at a lower level in the hierarchical directory). 
     In some embodiments, the destination object (e.g., label icon  5030 ) is ( 912 ) operable to associate metadata with one or more of the user interface objects. In some embodiments, the metadata is ( 914 ) stored with the first user interface object upon performance of an action (e.g., the metadata is stored in a data structure that corresponds to the user interface object). In some embodiments, the metadata is ( 916 ) stored, upon performance of an action, in a data structure that is separate from a data structure that corresponds to the user interface object (e.g., in a data structure associated with the destination object). 
     In some embodiments, the metadata comprises a representation of an event (e.g., metadata corresponding to event icons  5004 ,  5006 ,  5008 ,  5010 ,  5012 ,  5014 ,  5016 ,  5018 ,  5020 ,  5022 , and  5024  in  FIG. 5A ). For example, when the user interface objects are images, the event Birthday  5004  may be associated with a set of images (e.g., B 1 -B 27 ). In some embodiments, events are mutually exclusive (e.g., a user interface object may be associated with at most a single event). In other words, in these embodiments, when a user interface object is already associated with a first event, if it is associated with a second event that is distinct from the first event, it ceases to be associated with the first event. In some embodiments, events are nonexclusive (e.g., a user interface object may be simultaneously associated with multiple distinct events). 
     In some embodiments, the metadata comprises ( 918 ) a label (e.g., a user-defined label or a user rating). For example, in  FIG. 5A , where the user interface objects are images, the label “Little Wesley”  5030  is associated with a set of images that the user has given the label “Little Wesley” (in this example, it should be understood that, typically, these images will be the images that include a child named Wesley). In some embodiments, labels are nonexclusive (e.g., a user interface object may be simultaneously associated with multiple distinct labels). 
     In some embodiments, the destination object represents ( 920 ) a set of user interface objects (e.g., a set of user interface objects with a common label, such as Little Wesley  5030  in  FIG. 5A ). In some embodiments, the destination object represents ( 922 ) an electronic document (e.g., a slideshow  5038 , an email message, a web site, a book, or a word processing document). In some embodiments, the destination object represents ( 924 ) a folder. In some embodiments, the destination object represents ( 926 ) an output device (e.g., a printer  5042  or a print service  5046 ). In some embodiments, the destination object is ( 928 ) displayed as a menu item (e.g.,  5004 - 5024 ,  5028 - 5034 , or  5038 - 5050 ) in a menu (e.g., a menu item in a sidebar menu  5052 ). 
     The device detects ( 930 ) a first input (e.g., contact  5054  in  FIG. 5B ) by a user on a destination object (e.g., “Little Wesley”  5030  in  FIG. 5B ). For example, the first input may include any of: a thumb or other finger contact, a stylus contact, or a mouse input such as a mouse click when a cursor controlled by the mouse is over the destination icon. In some embodiments, the destination object is in a list of destination objects (e.g., a menu item in a sidebar menu  5052  or palette, which is easy to select with a thumb). For example, in  FIG. 5B , the menu  5052  is located along the left side of the touch screen display  112 , and thus for a user holding the computing device in two hands, the thumb of the left hand will typically be naturally positioned near the sidebar menu  5052 . 
     Operations  934 - 966  are performed while the device continues ( 932 ) to detect the first input (e.g., contact  5054  in  FIGS. 5B-5I ) by the user on the destination object (e.g., “Little Wesley”  5030  in  FIGS. 5B-5I ). 
     The device detects ( 934 ) a second input (e.g., contact  5056  in  FIG. 5C ) by the user (e.g., a finger gesture such as a tap gesture, a stylus contact, or a mouse input such as a mouse click when a cursor controlled by the mouse is over the first user interface object) on a first user interface object (e.g., user interface object D 5  in  FIG. 5C ) displayed at an initial first user interface object position on the touch screen display. If the first and second inputs are finger gestures, the finger that makes the first input is different from the finger that makes the second input (e.g., contact  5054  is a contact from the thumb of the left hand and contact  5056  is a contact from an index finger of the right hand of the user). The destination object (e.g., “Little Wesley”  5030  in  FIG. 5C ) is different from the first user interface object (e.g., D 5  in  FIG. 5C ). 
     In some embodiments, the second input by the user is ( 936 ) a tap input (e.g., a tap gesture including contact  5056  and release of the contact). In some embodiments, the second input is a finger gesture and the response to the second finger gesture is initiated when a finger-down event (e.g.,  5056  in  FIG. 5C ) in the second finger gesture is detected. In some embodiments, the response to the second finger gesture is initiated when a finger-up event in the second finger gesture is detected (e.g., when contact  5056  in  FIG. 5C  ceases to be detected, as described below with reference to  FIG. 5F ). 
     In some embodiments, the second input by the user is ( 938 ) a finger swipe gesture (e.g., contact  5058  and subsequent movement  5060  across the touch screen in  FIG. 5D ) that contacts the first user interface object (e.g., image D 5  in  FIG. 5D ). 
     In response to detecting the second input (e.g. contact  5056  in  FIG. 5C ) by the user on the first user interface object (e.g.,  5 D in  FIG. 5C ), the device performs ( 940 ) an action on the first user interface object. The action is associated with the destination object. For example, when the destination object is a label (e.g., “Little Wesley”  5030  in  FIG. 5C ) and the first user interface object (e.g., D 5  in  FIG. 5C ) is an image, the action is to associate the label with the image (e.g., store the label in metadata associated with the image). In some embodiments, the action is a preparatory action, such as preparing to perform an action that will occur upon detecting lift off of the first input (e.g., lift off of a first finger contact by the user) from the destination object. Exemplary actions include, without limitation: associating a label with digital content or an electronic document; moving digital content or an electronic document from one event to another event; moving digital content or an electronic document to a folder; and printing/publishing a copy of the digital content or electronic document. 
     In some embodiments, the destination object corresponds ( 942 ) to a set of objects and the action performed is adding or preparing to add the first user interface object to the set of objects. For example, if the first contact was with a menu item that is representative of an event (e.g., “Birthday” icon  5004  in  FIG. 5D ), then the action performed is adding or preparing to add the first user interface object (e.g., D 5  in  FIG. 5D ) to the “Birthday” event. In some embodiments, the destination object (e.g., “Birthday” icon  5004 ) corresponds ( 944 ) to an array (e.g.,  5060  in  FIG. 5D ) of objects (e.g., B 1 -B 27  and B 1 - r ) and the action performed is adding or preparing to add the first user interface object (e.g., D 5  in  FIG. 5D ) to the array (e.g.,  5060  in  FIG. 5D ) of objects (e.g., B 1 -B 27  and B 1 - r ). In some embodiments, the destination object corresponds ( 946 ) to a grid of objects and the action performed is adding or preparing to add the first user interface object to the grid of objects. For example, in  FIG. 5D , user interface objects B 1 -B 27  are arranged in a three by nine array of user interface objects. 
     In some embodiments, the destination object corresponds ( 948 ) to a folder and the action performed is adding or preparing to add the first user interface object to the folder. In some embodiments, the destination object corresponds ( 950 ) to a label (e.g., “Little Wesley”  5030  in  FIG. 5D ) and the action performed is adding or preparing to add the label (e.g., “Little Wesley”) to the first user interface object (e.g., D 5  in  FIG. 5D ). 
     In some embodiments, the destination object corresponds ( 952 ) to a hide label (e.g.,  5048  in  FIG. 5D ) and the action performed is adding or preparing to add the hide label to the first user interface object (e.g., D 5  in  FIG. 5D ) and ceasing to display or preparing to cease to display the first user interface object. In some embodiments, a residual image of each object (e.g., a shaded or semitransparent image of each original object) to be hidden is displayed until lift off of the first input (e.g., lift off of the first finger contact  5030  by the user) is detected, at which point display of the residual image(s) ceases and remaining unhidden user interface objects in the array are rearranged to fill the spaces left by the hidden objects (e.g., as described in greater detail below with reference to  FIGS. 5J-5N , except in the present example only a single object would be hidden instead of the multiple objects which are hidden in  FIGS. 5J-5N ). 
     In some embodiments, the destination object (e.g.,  5042  or  5046  in  FIG. 5A ) corresponds ( 954 ) to an output device (e.g., a printer, a print service or a fax, etc.) and the action performed is sending the first user interface object (e.g., D 5  in  FIG. 5D ) to the output device. For example, when the user interface object is an image, and the destination object is a printer, upon detecting the second input by the user, the device will print (or prepare to print) the image on a printer associated with the device. 
     In some embodiments, in response to detecting the second input by the user on the first user interface object, the device displays ( 956 ) an animation of the first user interface object moving from the initial first user interface object position into the destination object. For example,  FIG. 5E  illustrates an animation of user interface object D 5  moving from the initial first user interface object position into the destination object “Little Wesley”  5030 . In this animation the user interface object D 5  moves along a path (e.g.,  5062  in  FIG. 5E ) from the initial location at D 5  to the destination object  5030 . In one embodiment, as the first user interface object moves along the path, the user interface object is resized so as to match the size of the destination object. An illustrative example of the movement and resizing (e.g., from D 5 , to D 5 ′, to D 5 ″, to D 5 ′″, and finally to D 5 ″″ in  FIG. 5E ) of the destination object is shown in  FIG. 5E , in this example, the destination object  5030  is larger along the horizontal dimension (i.e., longer) and smaller along the vertical dimension (i.e., shorter) than the first user interface object D 5 . Thus, as illustrated in  FIG. 5E , the user interface object D 5  is stretched horizontally and compressed vertically as it moves (e.g., from D 5 , to D 5 ′, to D 5 ″, to D 5 ′″ and finally to D 5 ″″ in  FIG. 5E ) towards the destination object  5030 . It should be understood that, typically the various resized representations of the user interface object (e.g., D 5 , D 5 ′, D 5 ″, D 5 ′″ and D 5 ″″ in  FIG. 5E ) are not simultaneously displayed, but are instead displayed in sequence as the user interface object moves along the path  5062  towards the destination object. In some embodiments, where the user interface object includes an image, the image is distorted as the object is resized. The animation indicates to a user that an action associated with the destination object will be applied to the first user interface object. 
     In some embodiments, when the second input is a finger gesture, the animation and the response to the finger gesture are initiated when a finger-up event in the finger gesture is detected (e.g., when contact  5056  in  FIG. 5C  ceases to be detected, as shown in  FIG. 5F ). For example,  FIG. 5F  illustrates an animation of user interface object D 5  moving from the initial first user interface object position into the destination object “Little Wesley”  5030 . In this animation, the user interface object D 5  moves along a path (e.g.,  5064  in  FIG. 5F ) from the initial location at D 5  to the destination object  5030 , as described above for  FIG. 5E . In this embodiment, the animation is displayed when the finger lift off is detected (e.g., a finger-up event) from a user interface object rather than when finger contact on the user interface object is detected (e.g., a finger-down event). In some embodiments, the lift-off contact position is distinct from the initial contact position (e.g., set-down position). This embodiment may be used where the user interface objects are small relative to the size of the finger contact because the user is able to more accurately determine the lift-off position of the contact than the initial contact position (e.g., set-down position). 
     In some embodiments, while still detecting the first input (e.g., contact  5054  in  FIG. 5G ) with the destination object (e.g., “Little Wesley”  5030  in  FIG. 5G ), in response to detecting the second input by the user on the first user interface object, the device displays ( 958 ) a residual image of the first user interface object (e.g., shaded user interface object D 5  in  FIG. 5G ) at the initial first user interface object position on the touch screen display. In some embodiments, the residual image (e.g., shaded user interface object D 5  in  FIG. 5G ) is an image of the first user interface object with reduced opacity (e.g., a semitransparent or transparent image of the first user interface object). In some embodiments, the residual image of the first user interface object is ( 960 ) visually distinct from the first user interface object. In some embodiments, the residual image of the first user interface object is ( 962 ) a grayed-out, translucent, semi-transparent, reduced contrast, or ghost image of the first user interface object. 
     In some embodiments, the device detects ( 964 ) a third input by the user (e.g., a finger gesture such as a tap gesture  5066  in  FIG. 5H , a stylus tap gesture, or a mouse input such as a mouse click when a cursor controlled by the mouse is over the residual image of the first user interface object) on the residual image (e.g., shaded user interface object D 5  in  FIG. 5H ) of the first user interface object at the initial first user interface object position on the touch screen display while continuing to detect the first input (e.g., contact  5054  in  FIG. 5H ) by the user on the destination object (e.g., “Little Wesley”  5030  in  FIG. 5H ). In response to detecting the third finger input (e.g., tap gesture  5066  in  FIG. 5H ) by the user on the residual image (e.g., shaded D 5  in  FIG. 5H ) of the first user interface object at the initial first user interface object position on the touch screen display, the device undoes the action performed on the first user interface object and displays the first user interface object at the initial first user interface object position. For example, user interface object D 5  will not be labeled “Little Wesley” and the residual shaded image of D 5  ( FIG. 5H ) is replaced by the original unshaded image of D 5  ( FIG. 5J ). 
     In some embodiments, in response to detecting the third finger input (e.g., tap gesture  5066 ) by the user on the residual image (e.g., shaded image D 5  in  FIG. 5H ) of the first user interface object at the initial first user interface object position on the touch screen display, the device displays ( 966 ) an animation of the first user interface object moving from the destination object back to the initial first user interface object position. The animation indicates to a user that an action associated with the destination object will not be applied to the respective user interface object. For example,  FIG. 5I  illustrates an exemplary animation of undoing the prior movement of user interface object D 5  from the initial first user interface object position into the destination object “Little Wesley”  5030  (as shown in  FIGS. 5E and 5F ). In this animation, the user interface object D 5  moves along a path (e.g.,  5068  in  FIG. 5I ) from an initial location at the destination object  5030  to the original position of the first user interface object (e.g., D 5  in  FIG. 5I ). In one embodiment, as the first user interface object moves along the path, the user interface object is initially displayed as a resized representation so as to match the size of the destination object. An illustrative example of the movement and resizing (e.g., from D 5 ″″ to D 5 ′ to D 5 ″ to D 5 ′ in  FIG. 5I  and finally to D 5  in  FIG. 5J ) of the destination object is shown in  FIGS. 5I-5J . In this example, destination object  5030  is larger along the horizontal dimension (i.e., longer) and smaller along the vertical dimension (i.e., shorter) than the first user interface object D 5 . Thus, as illustrated in  FIG. 5I , the user interface object is initially displayed as a representation of the user interface object (e.g., D 5 ″″) that is stretched horizontally and compressed vertically compared to the original user interface object (e.g., D 5 ). As the user interface object moves (e.g., from D 5 ″″ to D 5 ′″ to D 5 ″ to D 5 ′ and finally to D 5 ) towards the original position of the user interface object D 5  the user interface object is compressed horizontally and stretched vertically so that it returns to the dimensions of the original user interface object D 5 . It should be understood that, typically the various resized representations of the user interface object (e.g., D 5 , D 5 ′, D 5 ″, D 5 ′″ and D 5 ″″ shown in  FIG. 5I ) are not simultaneously displayed, but are instead displayed in sequence as the user interface object moves along the path  5068  towards the initial first user interface object position. In some embodiments, where the user interface object includes an image, the image is distorted as the object is resized. 
     After the device undoes the action performed on the first user interface object, the first user interface object is displayed at the initial first user interface object position, (e.g., image D 5 , as shown in  FIG. 5J ). 
     Note that details of the processes described above with respect to method  900  (e.g.,  FIGS. 9A-9D ) are also applicable in an analogous manner to the methods described below. For example, the user interface objects and destination objects described below may have one or more of the characteristics of the user interface objects and destination objects described with reference to method  900 . For brevity, these details are not repeated below. 
       FIGS. 10A-10B  are flow diagrams illustrating a method  1000  of moving multiple user interface objects to a destination object and performing an action associated with the destination object on the multiple user interface objects in accordance with some embodiments. The method  1000  is performed at a computing device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a touch screen display (e.g.,  112  in  FIGS. 5J-5Y . Some operations in method  1000  may be combined and/or the order of some operations may be changed. 
     As described below, the method  1000  provides an intuitive way to manipulate a plurality of user interface objects at a computing device with a touch screen display. The method reduces the cognitive burden on a user when simultaneously manipulating a plurality of user interface objects using simultaneous user inputs, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to manipulate user interface objects faster and more efficiently conserves power and increases the time between battery charges. 
     The device simultaneously displays ( 1002 ) on the touch screen display (e.g.,  112  in  FIG. 5J ) a plurality of user interface objects (e.g., digital images B 1 -B 27 , B 1 - r  and/or D 1 -D 36 , D 7 - r  in  FIG. 5J ) and at least one destination object (e.g., icons  5004 ,  5006 ,  5008 ,  5010 ,  5012 ,  5014 ,  5016 ,  5018 ,  5020 ,  5022 ,  5024 ,  5028 ,  5030 ,  5032 ,  5034 ,  5038 ,  5040 ,  5042 ,  5044 ,  5046 ,  5048 , and/or  5050  in  FIG. 5J ). In some embodiments, the user interface objects are ‘selectable objects’ (i.e., objects configured to be selectable by a user). 
     The device detects ( 1004 ) a first input by a user on a destination object (e.g., a thumb or other finger contact, a stylus contact, or a mouse input such as a mouse click when a cursor controlled by the mouse is over the destination icon). In some embodiments, the destination object is in a list of destination objects (e.g., a menu item in a sidebar menu or palette, which is easy to select with a thumb). 
     Operations  1008 - 1018  are performed while the device continues ( 1006 ) to detect the first input by the user on the destination object (e.g., contact  5070  on “Hide” icon  5048  in  FIGS. 5J-5M  or contact  5082  with “Little Wesley” label icon  5030  in  FIGS. 50-5X ). 
     The device detects ( 1008 ) a second input by the user or a series of inputs by the user on two or more user interface objects in the plurality of user interface objects. The two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display. If both inputs are finger inputs, the finger that makes the first input (e.g., the first finger contact by the user) is different from the finger that makes the second input or series of inputs. For example, the device detects a series of tap gestures (e.g., tap gestures  5084  and  5088  as shown in  FIGS. 50 and 5P , respectively) with a finger or stylus or a series of mouse clicks on the two or more user interface objects, a swipe gesture (e.g., contact  5092 - 1  and movement  5094  of the contact as shown in  FIGS. 5Q-5R ) with a finger or stylus that contacts the two or more user interface objects, or multiple simultaneous finger gestures (such as concurrent finger contacts on the two or more user interface objects). 
     In response to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, the device performs ( 1010 ) an action on each of the two or more user interface objects. The action is associated with the destination object. In some embodiments, the action is a preparatory action, such as preparing to perform an action that will occur upon detecting lift off of the first input (e.g., lift off of the first finger contact by the user) from the destination object. 
     In some embodiments, in response to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, the device displays ( 1012 ) animations (e.g. as described in greater detail below with reference to  FIGS. 5K, 5L and 5R ) of each respective user interface object in the two or more user interface objects moving from a respective initial user interface object position into the destination object. The animations indicate to a user that an action associated with the destination object will be applied to the respective user interface objects. 
     In some embodiments, in response to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, the device displays ( 1014 ) a residual image (e.g., shaded user interface objects B 5  and B 12  in  FIG. 5M , as described in greater detail below) for each of the two or more user interface objects at a respective initial user interface object position on the touch screen display. 
     For example, in  FIG. 5J , the device detects a first input (e.g., contact  5070 ) by the user on a destination object (e.g., “Hide” icon  5048 ). In this example, the device detects a second input by the user (e.g., tap gesture  5072  in  FIG. 5J ) or a series of inputs (e.g., tap gesture  5072  in  FIG. 5J  followed by tap gesture  5076  in  FIG. 5L ) by the user on two or more user interface objects in the plurality of user interface objects. The two or more user interface objects (e.g., B 5  and B 12  in  FIG. 5J ) are displayed at respective initial user interface object positions on the touch screen display. In this example, in response to detecting each of the second inputs (e.g., contacts  5072  in  FIG. 5K and 5076  in  FIG. 5L ) by the user on the two or more user interface objects, the device performs an action on each of the two or more user interface objects. The action is associated with the destination object. In some embodiments, the action is a preparatory action, such as preparing to hide the user interface objects upon detecting lift off of the first input (e.g., lift off of the first finger contact  5070  by the user) from the destination object (e.g., “Hide”  5048  in  FIG. 5M ). 
     In this example, in response to detecting tap gesture  5072 , the device displays an animation showing user interface object B 5  resizing (e.g., from B 5 , to B 5 ′, to B 5 ″, to B 5 ′″, and finally to B 5 ″″ in  FIG. 5K ) and moving towards or into the destination object (e.g., “Hide” icon  5048  in  FIG. 5K ) along a path  5074  from the initial user interface object B 5  location to the destination object  5048 . Similarly, in response to detecting tap gesture  5076 , the device displays an animation showing user interface object B 12  resizing (e.g., from B 12 , to B 12 ′, to B 12 ″, to B 12 ′″, and finally to B 12 ″″ in  FIG. 5L ) and moving towards or into the destination object (e.g., “Hide” icon  5048  in  FIG. 5L ) along a path  5078  from the initial user interface object location to the destination object. 
     In this example, while the device continues to detect the first user input (e.g., contact  5070  in  FIG. 5M ) with the destination object (e.g., “Hide” icon  5048  in  FIG. 5M ), the device displays a residual image for each of the two or more user interface objects (e.g., shaded user interface objects D 5  and D 12  in  FIG. 5M ) at a respective initial user interface object position on the touch screen display. In this example, when the device ceases to detect the first user input (e.g., when the device detects lift-off of contact  5070  in  FIG. 5M ) the device performs the action by hiding the user interface objects (e.g., the device ceases to display the residual images for the two or more user interface objects B 5  and B 12  and rearranges the remaining unhidden user interface objects in the array so as to fill in the spaces left by the hidden objects. Thus, as shown in  FIG. 5N , the user interface objects that the user selected while simultaneously selecting the “Hide” destination object (e.g., B 5  and B 12 ) are not displayed in the “Birthday” array (e.g.,  5060  in  FIG. 5N ). 
     As described in greater detail below with reference to  FIGS. 8A-8D , in some embodiments the user interface is scrolled so that different user interface items are displayed. For example, in  FIG. 5N , the device scrolls  5080  the user interface items upwards, so that new user interface objects (e.g., S 1 -S 39 , and S 33 - r  in  FIG. 5O ) are displayed and old user interface objects (e.g., B 1 -B 27  in the “Birthday” array  5060 ) are no longer displayed. 
     As another example of selecting multiple user interface objects, in  FIG. 5O , the device detects a first input (e.g., contact  5082 ) by the user on a destination object (e.g., “Little Wesley”  5030 ). In this example, the device detects a second input by the user (e.g.,  5084  in  FIG. 5O ) or a series of inputs (e.g., tap gesture  5084  in  FIG. 5O  followed by tap gesture  8088  in  FIG. 5P  and swipe gesture including contact  5092 - 1  and subsequent movement  5094  of the contact in  FIG. 5Q  to contact location  5092 - 2  in  FIG. 5R ) by the user on two or more user interface objects in the plurality of user interface objects. The two or more user interface objects (e.g., D 3  in  FIG. 5O , D 11  in  FIG. 5P  and D 6 , D 9 , D 12 , D 15 , D 18 , D 21 , D 24 , D 30 , D 33 , D 36  in  FIG. 5Q ) are displayed at respective initial user interface object positions on the touch screen display. In this example, in response to detecting each of the second inputs by the user (e.g., contact  5084  in  FIG. 5O  followed by contact  8088  in  FIG. 5P  and swipe gesture including contact  5092 - 1  and subsequent movement  5094  of the contact in  FIG. 5Q ), the device performs an action on each of the two or more user interface objects. The action is associated with the destination object (e.g., “Little Wesley”  5030  in  FIGS. 50-5Q ). In some embodiments, the action is a preparatory action, such as preparing to add a label “Little Wesley”  5030  to the selected user interface objects upon detecting lift off of the first input (e.g., lift off of the first finger contact by the user) from the destination object (e.g., “Little Wesley”  5030  in  FIGS. 50-5Q ). 
     In this example, in response to detecting contact  5084 , the device displays an animation showing user interface object D 3  resizing (e.g., from D 3 , to D 3 ′, to D 3 ″, to D 3 ′″, and finally to D 3 ″ in  FIG. 5O ) and moving towards or into the destination object (e.g., “Little Wesley”  5030  in  FIG. 5O ) along a path  5086  from the initial user interface object D 3  location to the destination object  5030 . Similarly, in response to detecting contact  5088 , the device displays an animation showing user interface object D 11  resizing (e.g., from D 11 , to D 11 ′, to D 11 ″, to D 11 ′″, and finally to D 11 ″″ in  FIG. 5P ) and moving towards or into the destination object (e.g., “Little Wesley”  5030  in  FIG. 5P ) along a path  5090  from the initial user interface object D 11  location to the destination object  5030 . 
     The device also displays an animation in response to detecting the swipe gesture (e.g., contact  5092 - 1  and subsequent movement  5094  of the contact in  FIG. 5Q  to contact location  5092 - 2  in  FIG. 5R ) on D 6 , D 9 , D 12 , D 15 , D 18 , D 21 , D 24 , D 30 , D 33 , D 36  in  FIG. 5Q  by showing some or all of the user interface objects D 6 , D 9 , D 12 , D 15 , D 18 , D 21 , D 24 , D 30 , D 33 , D 36  resizing and moving towards or into the destination object  5030 . For illustrative purposes, respective user interface objects D 18 ″″, D 21 ′″, D 24 ′″, D 27 ″, D 30 ″, D 33 ′ and D 36 ′ are each shown moving from their respective initial positions towards the destination object (e.g., “Little Wesley”  5030  in  FIG. 5Q ) along a respective path (e.g.,  5096  for user interface object D 36 ) from the initial user interface object location for the respective user interface object to the destination object. 
     In this example, while the device continues to detect the first user input (e.g., contact  5082  in  FIG. 5S ) with the destination object (e.g., “Little Wesley”  5030  in  FIG. 5S ), the device displays a residual image for each of the two or more user interface objects (e.g., shaded user interface objects D 3 , D 6 , D 9 , D 11 , D 12 , D 15 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , D 36  in  FIG. 5S ) at a respective initial user interface object position on the touch screen display. In this example, when the device ceases to detect the first user input (e.g., when the device detects lift-off of contact  5082  in  FIG. 5S ), the device performs the action by adding the label “Little Wesley” to the metadata of the user interface objects that were selected by the user (e.g., D 3 , D 6 , D 9 , D 11 , D 12 , D 15 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , D 36  in  FIG. 5S ). 
     In some embodiments, the device detects ( 1016 ) a third input by the user (e.g., a finger gesture such as a tap gesture  5098  on the residual image of D 3  in  FIG. 5T ; a finger swipe gesture with contact  5102 - 1  and movement  5104  of the contact over the residual images of D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , and D 36  in  FIG. 5V ; a stylus tap gesture; or a mouse input such as a mouse click when a cursor controlled by the mouse is over a respective residual image of a respective user interface object) on a respective residual image of a respective user interface object at a respective initial user interface object position on the touch screen display while continuing to detect the first input by the user on the destination object (e.g., contact  5082  on icon  5030 ). In response to detecting the third input by the user on the respective residual image of the respective user interface object at the respective initial user interface object position on the touch screen display, the device undoes the action performed on the respective user interface object and displays the respective user interface object at the respective initial user interface object position. For example, user interface objects D 3 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , and D 36  will not be labeled “Little Wesley” and the residual shaded images of D 3 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , and D 36  ( FIG. 5S ) are replaced by the original unshaded images of D 3 , D 18 , D 21 , D 24 , D 27 , D 30 , D 33 , and D 36  ( FIG. 5X ). 
     In some embodiments, the device displays ( 1018 ) an animation of the respective user interface object moving from the destination object back to the respective initial user interface object position (e.g., as shown in  FIGS. 5U and 5W , and described in greater detail below). The animation indicates to a user that an action associated with the destination object will not be applied to the respective user interface object. 
     For example, in  FIG. 5T  the device detects a third user input (e.g., tap gesture  5098 ) on the residual image of D 3  (e.g., shaded user interface object D 3  in  FIG. 5T ). In response to detecting the tap gesture  5098 , the device undoes the action performed on the respective user interface object and displays an animation of the respective user interface object moving from the destination object (e.g., “Little Wesley”  5030  in  FIG. 5U ) back to the initial user interface object position D 3 . In this example, the device displays an animation showing user interface object (e.g., D 3 ″″) that is stretched horizontally and compressed vertically compared to the original user interface object (e.g., D 3 ). As the user interface object moves (e.g., from D 3 ″″ to D 3 ′ to D 3 ″ to D 3 ′) along a path  5100  from the destination object location (e.g., “Little Wesley”  5030  in  FIG. 5U ) towards the original position of the user interface object D 3  the user interface object is compressed horizontally and stretched vertically so that it returns to the dimensions of the original user interface object D 3 . As shown in  FIG. 5V , the device displays the respective user interface object (e.g., unshaded user interface object D 3  in  FIG. 5V ) at the respective initial user interface object position. 
     Similarly, in some embodiments, in response to a swipe gesture that includes contact with a plurality of residual images of user interface objects, the device will undo the action performed on the plurality of respective user interface object associated with the residual images of the user interface objects. For example, in  FIG. 5V  the device detects a third user input (e.g., contact  5102 - 1  and movement  5104  in  FIG. 5V  of the contact to location  5102 - 2  in  FIG. 7W ) on the residual images of D 18 , D 21 , D 24 , D 27 , D 30 , D 33  and D 36 . In response to detecting the swipe gesture, the device undoes the action performed on the respective user interface objects and displays an animation of the respective user interface objects moving from the destination object (e.g., “Little Wesley”  5030  in  FIG. 5W ) back to their respective initial user interface object positions. In this example, the device displays an animation showing some or all of the user interface objects (e.g., D 18 , D 21 , D 24 , D 30 , D 33 , D 36 ) resizing and moving. For illustrative purposes, exemplary user interface objects D 36 ′″, D 33 ″, D 30 ″, and D 27  are shown moving from the destination object (e.g., “Little Wesley”  5030  in  FIG. 5W ) to their respective initial positions along respective paths (e.g.,  5106  for user interface object D 36 ). In  FIG. 5W , user interface objects D 18 , D 21  and D 24  are shown as having already been returned to their respective initial positions. In some embodiments, the movement and resizing of each of these user interface objects is performed in accordance with the animation for moving and resizing user interface object D 3  as described previously with reference to  FIG. 5U . 
     In some embodiments, after the device undoes the action performed on the respective user interface objects (e.g., D 18 , D 21 , D 24 , D 30 , D 33 , and D 36  in  FIG. 5W ), the device displays the respective user interface object at the respective initial user interface object position, as shown in  FIG. 5X . In some embodiments, after the user releases the first contact (e.g., contact  5082  in  FIG. 5X ) with the destination object (e.g., icon  5030  in  FIG. 5X ), the device ceases to display the residual images of the user interface objects, and the original user interface objects are displayed (e.g., as shown in  FIG. 5Y ) in their initial user interface locations. In this example, the residual images indicate to a user which images will be labeled “Little Wesley” when the device detects lift off of contact  5082 . After lift off of contact  5082 , the residual images are replaced with the original objects because all of the original objects D 1 -D 36  and D 7 - r  are still part of the “Day at the zoo” event. 
       FIGS. 11A-11B  are flow diagrams illustrating a method  1100  of forming a group of user interface objects, moving the group to a destination object or an area associated with a destination object, and performing an action associated with the destination object on the group of user interface objects in accordance with some embodiments. The method  1100  is performed at a computing device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a touch screen display (e.g.,  112  in  FIGS. 6A-6M ). Some operations in method  1100  may be combined and/or the order of some operations may be changed. 
     As described below, the method  1100  provides an intuitive way to form and manipulate a group of user interface objects and perform actions on the group of user interface objects at a computing device with a touch screen display. The method reduces the cognitive burden on a user when manipulating a plurality of user interface objects, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to manipulate user interface objects faster and more efficiently conserves power and increases the time between battery charges. 
     The device simultaneously displays ( 1102 ) on the touch screen display (e.g.,  112  in  FIG. 6A ) a plurality of user interface objects (e.g., digital images D 1 , D 2 , D 3 , D 4 , D 5 , D 6 , D 7 , D 8 , D 9 , D 10 , D 11 , D 12 , D 13 , D 14 , D 15 , D 16 , D 17 , D 18 , D 19 , D 20 , D 21 , D 22 , D 23 , D 24 , D 25 , D 26 , D 27 , D 28 , D 29 , D 30 , D 31 , D 32 , D 33 , D 34 , D 35 , D 36 , D 7 - r , and/or S 1 , S 2 , S 3 , S 4 , S 5 , S 6 , S 7 , S 8 , S 9 , S 10 , S 11 , S 12 , S 13 , S 14 , S 15 , S 16 , S 17 , S 18 , S 19 , S 20 , S 21 , S 22 , S 23 , S 24 , S 25 , S 26 , S 27 , S 28 , S 29 , S 30 , S 31 , S 32 , S 33 , S 34 , S 35 , S 36 , S 37 , S 38 , S 39 , S 33 - r  in  FIG. 6A ) and at least one destination object (e.g., icons  6004 ,  6006 ,  6008 ,  6010 ,  6012 ,  6014 ,  6016 ,  6018 ,  6020 ,  6022 ,  6024 ,  6028 ,  6030 ,  6032 ,  6034 ,  6038 ,  6040 ,  6042 ,  6044 ,  6046 ,  6048 , and/or  6050  in  FIG. 6A ). In some embodiments, the user interface objects are ‘selectable objects’ (i.e., objects configured to be selectable by a user). 
     The device detects ( 1104 ) a first input by a user (e.g., a press and hold finger contact  6052  ( FIG. 6B ), stylus contact, or mouse click) on a first user interface object (e.g., image D 27 ) at a first location on the touch screen display. 
     Operations  1108 - 1126  are performed while the device continues ( 1106 ) to detect the first input (e.g., contact  6052  in  FIGS. 6B-6L ) by the user. 
     The device detects ( 1108 ) movement of the first input by the user across the touch screen display to a second location on the touch screen display. For example, as shown in  FIG. 6C , the device detects movement of a finger contact  6052  from a first location  6052 - 1  that corresponds to the initial position of user interface object D 27  to a second location  6052 - 2  on the touch screen display. 
     The device moves ( 1110 ) the first user interface object in accordance with the movement  6054  of the first input by the user across the touch screen display to (or proximate to) the second location on the touch screen display. For example, as shown in  FIG. 6C , the device moves the user interface object D 27  from an initial location to a second location D 27 ′ on the user interface that is proximate to the location  6052 - 2  of the contact. 
     The device detects ( 1112 ) a second input by the user (e.g., a finger gesture such as a tap gesture  6056  in  FIG. 6D , a stylus contact, or a mouse input such as a mouse click when a cursor controlled by the mouse is over the second user interface object) on a second user interface object (e.g., D 24  in  FIG. 6D ) displayed at an initial second user interface object position on the touch screen display. 
     In response to detecting the second input by the user on the second user interface object, the device displays ( 1114 ) an animation of the second user interface object moving  6058  from the initial second user interface object position (e.g., D 24  in  FIG. 5B ) to (or proximate to) the second location (e.g., proximate to the location of the contact  6052 - 2  in  FIG. 6E ). The animation may move the second user interface object to, proximate to, or into the first user interface object (e.g., D 27 ′ in  FIG. 6E ). For example, in  FIG. 6E , the second user interface object (e.g., D 24 ′) is shown moving towards the first user interface object (e.g., D 27 ′). The animation indicates to a user that the second user interface object is being grouped with the first user interface object. 
     In some embodiments, the device displays ( 1116 ) a counter (e.g.,  6060  in  FIG. 6E ) of the number of user interface objects that have moved to the second location (e.g., in response to detecting the second input by the user on the second user interface object). In the example above, as the device is animating the movement of the second user interface object to the first user interface object, the device displays a counter to “2” (e.g.,  6060 - a  in  FIG. 6E ) to indicate that two user interface objects (e.g., D 27  and D 24 ) have moved to the second location. 
     In some embodiments, in response to detecting the second input (e.g., tap gesture  6056  in  FIG. 6D ) by the user on the second user interface object, the device displays ( 1118 ) a residual image (e.g., shaded user interface object D 24  in  FIG. 6E ) of the second user interface object at the initial second user interface object position on the touch screen display. 
     It should be understood that selecting a second user interface object, as described above can be repeated for any number of user interface objects, and in some embodiments, as each user interface object is selected, an animation is displayed and the counter increases to the number of selected user interface objects. For example, in  FIG. 6F  the device detects another input by the user (e.g., a finger gesture such as a tap gesture  6062  in  FIG. 6F , a stylus contact, or a mouse input such as a mouse click when a cursor controlled by the mouse is over the user interface object) on another user interface object (e.g., D 28  in  FIG. 6F ) displayed at an initial user interface object position on the touch screen display. In response to detecting this input by the user on the user interface object, the device displays an animation of the user interface object moving (e.g.,  6064  in  FIG. 6G ) from the initial user interface object position (e.g., D 28  in  FIG. 6F ) to (or proximate to) the second location (e.g., the location of the contact  6052 - 2  in  FIG. 6G ). The animation may move the user interface object to, proximate to, or into the first user interface object (e.g., D 27 ′ in  FIG. 6G ). For example, in  FIG. 6G , a representation of the user interface object D 28 ′ is shown moving towards the first user interface object (e.g., D 27 ′). In some embodiments, the device displays a counter (e.g.,  6060  in  FIG. 6G ) of the number of user interface objects that have moved to the second location (e.g., in response to detecting the input(s) by the user on one or more second user interface objects). In the example above, as the device is animating the movement of the user interface object D 28  to the first user interface object, the device increments a counter to “3” (e.g.,  6060 - b  in  FIG. 6G ) to indicate that three user interface objects (e.g., D 27 , D 24  and D 28 ) have moved to the second location. 
     In some embodiments, the device detects ( 1120 ) a third input by the user (e.g., a finger gesture such as a tap gesture  6066  in  FIG. 6H , a stylus tap gesture, or a mouse input such as a mouse click when a cursor controlled by the mouse is over the residual image of the second user interface object) on the residual image of the second user interface object (e.g., shaded user interface object D 24  in  FIG. 6H ) at the initial second user interface object position on the touch screen display while continuing to detect the first input by the user (e.g., contact  605 - 2 ,  FIG. 6H ). In response to detecting the third finger input by the user on the residual image of the second user interface object at the initial second user interface object position on the touch screen display, the device displays the second user interface object at the initial second user interface object position (e.g., unshaded user interface object D 24  in  FIG. 6I ). 
     In some embodiments, the device displays ( 1122 ) an animation of the second user interface object moving (e.g., movement  6068  in  FIG. 6H ) from the second location back to the initial second user interface object position. The animation indicates to a user that the second user interface object is being removed from the group of objects at the second location. The animation may move the second user interface object from or out of the first user interface object. For example, in  FIG. 6H , a representation of the second user interface object (e.g., D 24 ′) is shown moving from the first user interface object (e.g., D 27 ′ in  FIG. 6H ) towards the initial position of the second user interface object (e.g., D 24  in  FIG. 6H ). In some embodiments, the device displays a counter (e.g.,  6060 - c  in  FIG. 6H ) of the number of user interface objects that are still located at the second location. In the example above, as the device is animating the movement of the second user interface object D 24 ′ towards the initial second user interface object position on the touch screen, the device decrements a counter to “2” (e.g.,  6060 - c  in  FIG. 6H ) to indicate that only two user interface objects (e.g., D 27  and D 28 ) remain in the second location. It should be understood that only two user interface objects “remain” at a location because three user interface objects (e.g., D 27 , D 24  and D 28 ) have moved to the location and one (e.g., D 24 ) has moved away from the location. Thus, as described in the example above, in  FIG. 6I  the original user interface object D 24  is displayed in its original location. 
     In some embodiments, the device detects ( 1124 ) movement of the first input (e.g., movement  6070  in  FIG. 6J , which includes movement of contact  6052  from contact location  6052 - 2  to contact location  6052 - 3 , to contact location  6052 - 4 , to contact location  6052 - 5 ) by the user across the touch screen display from the second location (e.g.,  6052 - 2 ) to a destination object (e.g., “Printer” object  6042  in  FIG. 6J ) or an area associated with a destination object. The device moves the first user interface object and the second user interface object in accordance with the movement of the first input by the user across the touch screen display to the destination object or the area associated with a destination object (e.g., movement of the user interface object D 27  from D 27 ′ to D 27 ″, to D 27 ′″ and finally to D 27 ″ which is proximate to the destination object “Printer”  6042  in  FIG. 6J ). In some embodiments, as the device moves the first user interface object, the device resizes the user interface object so as to match the size of the destination object. An illustrative example of the movement and resizing (e.g., from D 27 ′, to D 27 ″, D 27 ′″, and finally to D 27 ″ in  FIG. 6J ) of the destination object is shown in  FIG. 6J . In this example, the destination object (e.g., “Printer”  6042  in  FIG. 6J ) is larger along the horizontal dimension (i.e., longer) and smaller along the vertical dimension (i.e., shorter) than the first user interface object (e.g., D 27 ′ in  FIG. 6J ). Thus, as illustrated in  FIG. 6J , the user interface object D 27  is stretched horizontally and compressed vertically as it moves (e.g., from D 27 ′, to D 27 ″, to D 27 ′″ and finally to D 27 ″ in  FIG. 6J ) towards the destination object  6042 . It should be understood that, typically the various resized representations of the user interface object (e.g., D 27 ′, D 27 ″, D 27 ′″ and D 27 ″ in  FIG. 6J ) are not simultaneously displayed, but are, instead, displayed in sequence as the user interface object moves along a path towards the destination object. In some embodiments, where the user interface object includes an image, the image is distorted as the object is resized. 
     In some embodiments, the device detects ( 1126 ) lift off of the first input by the user (e.g., lift off of the first finger contact by the user, lift off of the stylus contact, or a mouse up event) from the touch screen display at the destination object or at the area associated with the destination object. In response to detecting lift off of the first input (e.g., contact  6052 - 5  in  FIG. 6J ) by the user from the touch screen display at the destination object or at the area associated with the destination object, the device performs an action on the first user interface object and the second user interface object (e.g., the device initiates printing of user interface objects D 27  and D 28 ). The action is associated with the destination object (e.g., “Print”  6042  in  FIG. 6J ). Exemplary actions include, without limitation: associating a label with digital content or an electronic document; moving digital content or an electronic document from one event to another event; moving digital content or an electronic document to a folder; and printing/publishing a copy of the digital content or electronic document. 
     As an example of movement of the first input to an area associated with a destination object, in  FIG. 6K , the destination object is the “School garden” icon  6008  and the area associated with the “School garden” icon  6008  is a rectangular area  6076  that includes an array  6072  of images labeled as being images of the “School garden” event. In this example, the first input by the user (e.g., contact  6052 ) is moved (e.g., movement  6074  in  FIG. 6K ) to a location  6052 - 6  within the area  6076  that is associated with the destination object “School garden” icon  6008 . While the device is detecting the contact (e.g.,  6052 - 6  in  FIG. 6K ) in the area  6076  that is associated with the destination object  6008 , the device detects lift off of the first input  6052  by the user, as shown in  FIGS. 6K-6L  (where contact  6052 - 6  ceases to be detected in  FIG. 6L ). In response to detecting the lift off of the user input (e.g., the release of contact  6052 - 6 ), the device performs an action on the user interface objects (e.g., D 27  and D 28 ) that were associated with the first input by the user (e.g., contact  6052 ). The action is associated with the destination object  6008 . In this example, the device associates images D 27  and D 28  with the “School garden” event  6008  and displays an animation of representations of the user interface objects (e.g., D 27 ′ and D 28 ′ in  FIG. 6L ) moving into the array  6072  of images labeled as being images of the “School garden” event. In some embodiments, the user interface objects are associated with the new array  6072  in addition to being associated with the old array  6078  of user interface objects to which the user interface objects previously belonged. In contrast, in other embodiments, as shown in  FIG. 6M , the user interface objects (e.g., D 27  and D 28 ) are associated with the new array (e.g., “School garden” array  6072 ) and disassociated with the old array to which they previously belonged (e.g., “Day at the zoo” array  6078 ). In  FIG. 6M , the user interface objects D 27  and D 28  are shown in the new array  6072  of user interface objects, while they are not shown in the old array  6078  of user interface objects, and the remaining user interface objects (e.g., D 1 -D 26  and D 29 -D 36 ) in the old array  6078  of user interface objects are rearranged to fill in the gaps caused by the removal of the user interface objects D 27  and D 28 . 
       FIGS. 12A-12B  are flow diagrams illustrating a method  1200  of forming a group of user interface objects, moving the group to a destination object or an area associated with a destination object, and performing an action associated with the destination object on the group of user interface objects in accordance with some embodiments. The method  1200  is performed at a computing device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a touch screen display (e.g.,  112  in  FIGS. 6M-6X ). Some operations in method  1200  may be combined and/or the order of some operations may be changed. 
     As described below, the method  1200  provides an intuitive way to form a group of multiple user interface objects and manipulate the group of user interface objects at a computing device with a touch screen display. The method reduces the cognitive burden on a user when manipulating multiple user interface objects, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to manipulate multiple user interface objects faster and more efficiently conserves power and increases the time between battery charges. 
     The device simultaneously displays ( 1202  on the touch screen display (e.g.,  112  in  FIG. 6M ) a plurality of user interface objects (e.g., digital images D 1 -D 25 , D 28 -D 36 , and/or S 1 -S 39 , D 26 , D 27  in  FIG. 6M ) and at least one destination object (e.g., icons  6004 ,  6006 ,  6008 ,  6010 ,  6012 ,  6014 ,  6016 ,  6018 ,  6020 ,  6022 ,  6024 ,  6028 ,  6030 ,  6032 ,  6034 ,  6038 ,  6040 ,  6042 ,  6044 ,  6046 ,  6048 , or  6050 ). In some embodiments, the user interface objects are ‘selectable objects’ (i.e., objects configured to be selectable by a user). 
     The device detects ( 1204 ) a first input by a user (e.g., a press and hold finger contact  6100 , stylus contact, or mouse click) on a first user interface object (e.g., D 31  in  FIG. 6N ) at a first location on the touch screen display. 
     Operations  1208 - 1226  are performed while the device continues ( 1206 ) to detect the first input (e.g., press and hold finger contact  6100  in  FIGS. 6N-6T ) by the user. 
     The device detects ( 1208 ) movement (e.g.,  6102  in  FIG. 6N ) of the first input (e.g.,  6100 - 1  in  FIG. 6N ) by the user across the touch screen display to a second location (e.g.,  6100 - 2  in  FIG. 6N ) on the touch screen display. 
     The device moves ( 1210 ) the first user interface object in accordance with the movement (e.g.,  6102  in  FIG. 6N ) of the first input by the user across the touch screen display to (or proximate to) the second location (e.g.,  6100 - 2  in  FIG. 6N ) on the touch screen display. For example, in  FIG. 6N  the user interface object D 31  moves to a location D 31 ′ that is proximate to the second location of the contact (e.g.,  6100 - 2  in  FIG. 6N ). 
     The device detects ( 1212 ) a second input by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects (e.g., a swipe gesture with a finger or stylus that contacts the two or more user interface objects), multiple simultaneous finger gestures (such as concurrent finger contacts on the two or more user interface objects), or a series of tap gestures with a finger or stylus or a series of mouse clicks on the two or more user interface objects). The two or more user interface objects are displayed at respective initial user interface object positions on the touch screen display. If both inputs are finger inputs, the finger that makes the first input by the user is different from the finger that makes the second input by the user or series of inputs by the user. For example, in  FIG. 6O , the device detects a finger swipe gesture (e.g., contact  6104  followed by movement  6106  of the contact along the touch-sensitive surface in  FIG. 6O ), which passes through two or more of the user interface objects (e.g., D 36 , D 33 , D 30 , D 25 , D 22 , D 19 , D 16 , D 13  and D 10  in  FIG. 6O ). 
     In response to detecting the second input (e.g., swipe gesture including contact  6106 - 1  and movement  6106  of the contact along the touch-sensitive surface in  FIG. 6O ) by the user or series of inputs by the user on two or more user interface objects in the plurality of user interface objects, the device displays ( 1214 ) animations of each respective user interface object in the two or more user interface objects moving from a respective initial user interface object position to (or proximate to) the second location. The animations indicate to a user that these user interface objects are being added to the group of user interface objects. The animations may move the two or more user interface objects to, proximate to, or into the first user interface object. For example, as shown in  FIG. 6P , as the contact moves  6106  to a second contact location  6104 - 2  as part of the swipe gesture, respective representations of the user interface objects (e.g., D 36 ′, D 33 ′, D 30 ′, D 25 ′, D 22 ′, D 19 ′, D  16 ′, D 13 ′, and D 10 ′ in  FIG. 6P ) move towards the second location (e.g.,  6100 - 2  in  FIG. 6P ), which includes the first user interface object (e.g., D 31 ′ in  FIG. 6P ). 
     In some embodiments, the device displays ( 1216 ) a counter (e.g.,  6108 - a  in  FIG. 6Q ) of the number of user interface objects that have moved to the second location (e.g., in response to detecting the second input by the user or series of inputs by the user on the two or more user interface objects). In the example above, as the device is animating the movement of the second user interface objects to the first user interface object, the device displays a counter showing “10” (e.g.,  6108 - a  in  FIG. 6Q ) to indicate that ten user interface objects (e.g., D 10 , D 13 , D 16 , D 19 , D 22 , D 25 , D 30 , D 31 , D 33  and D 36 ) have moved to the second location. 
     In some embodiments, in response to detecting the second input by the user or series of inputs by the user on the two or more user interface objects, the device displays ( 1218 ) a residual image (e.g., the shaded user interface objects D 10 , D 13 , D 16 , D 19 , D 22 , D 25 , D 30 , D 31 , D 33  and D 36  in  FIG. 6P-6Q ) for each of the two or more user interface objects at a respective initial user interface object position on the touch screen display. 
     In some embodiments, the device detects ( 1220 ) a third input by the user (e.g., a finger gesture such as a tap gesture  6110  in  FIG. 6Q , a stylus tap gesture, or a mouse input such as a mouse click when a cursor controlled by the mouse is over a respective residual image of a respective user interface object) on a respective residual image (e.g., shaded user interface object D 25  in  FIG. 6Q ) of a respective user interface object at a respective initial user interface object position on the touch screen display while continuing to detect the first input (e.g., contact  6100 - 2  in  FIG. 6Q ) by the user. In response to detecting the third input (e.g., tap gesture  6110  in  FIG. 6Q ) by the user on the respective residual image of the respective user interface object at the respective initial user interface object position on the touch screen display, the device displays the respective user interface object at the respective initial user interface object position (e.g., unshaded user interface object D 25  in  FIG. 6S ). 
     In some embodiments, the device displays ( 1222 ) an animation of the respective user interface object moving from the second location back to the respective initial user interface object position. The animation indicates to a user that the respective user interface object is being removed from the group of objects at the second location. The animation may move the respective user interface object from or out of the first user interface object. For example, in  FIG. 6R , a representation of the second user interface object (e.g., D 25 ′) is shown moving from the first user interface object (e.g., D 31 ′ in  FIG. 6R ) towards the initial position of the second user interface object (e.g., D 25  in  FIG. 6R ). In some embodiments, the device displays a counter (e.g.,  6108 - b  in  FIG. 6R ) of the number of user interface objects that are still located at the second location. In the example above, as the device is animating the movement (e.g.,  6112  in  FIG. 6R ) of the second user interface object to the initial second user interface object position on the touch screen, the device decrements a counter to “9” (e.g.,  6108 - b  in  FIG. 6R ) to indicate that only nine of the user interface objects (e.g., D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33  and D 36 ) remain in the second location. It should be understood that only nine user interface objects “remain” at a location because ten user interface objects (e.g., D 10 , D 13 , D 16 , D 19 , D 22 , D 25 , D 30 , D 31 , D 33  and D 36 ) have moved to the location and one (e.g., D 25 ) has moved away from the location. 
     In some embodiments, the device detects ( 1224 ) movement of the first input (e.g., movement  6114  in  FIG. 6S , which includes movement of contact  6100  from contact location  6100 - 2  to contact location  6100 - 3 , to contact location  6100 - 4 , to contact location  6100 - 5 ) by the user across the touch screen display from the second location (e.g.,  6100 - 2 ) to a destination object (e.g., “School garden” event icon  6008  in  FIG. 6S ) or an area associated with a destination object. The device moves the first user interface object (and, in some embodiments, the two or more user interface objects) in accordance with the movement of the first input by the user across the touch screen display to the destination object or the area associated with a destination object (e.g., movement of the user interface object D 31  from D 31 ′ to D 31 ″, to D 31 ′″ and finally to D 31 ″″ which is proximate to the destination object “School garden”  6008  in the menu in  FIG. 6S ). In some embodiments, as the device moves the first user interface object, the device resizes the user interface object so as to match the size of the destination object. An illustrative example of the movement and resizing (e.g., from D 31 ′, to D 31 ″, D 31 ′″, and finally to D 31 ″″ in  FIG. 6S ) of the destination object is shown in  FIG. 5S . In this example, the destination object is larger along the horizontal dimension (i.e., longer) and smaller along the vertical dimension (i.e., shorter) than the first user interface object. Thus, as illustrated in  FIG. 6S , the user interface object D 31  is stretched horizontally and compressed vertically as it moves (e.g., from D 31 ′, to D 31 ″, to D 31 ′″ and finally to D 31 ″″ in  FIG. 6S ) towards the destination object  6008  in  FIG. 6J . It should be understood that, typically the various resized representations of the user interface object (e.g., D 31 ′, D 31 ″, D 31 ′″ and D 31 ″″ in  FIG. 6S ) are not simultaneously displayed, but are instead displayed in sequence as the user interface object moves along a path towards the destination object. In some embodiments, where the user interface object includes an image, the image is distorted as the object is resized. 
     In some embodiments, the device detects ( 1226 ) lift off of the first input by the user (e.g., lift off of the first finger contact by the user, lift off of the stylus contact, or a mouse up event) from the touch screen display at the destination object or at the area associated with the destination object. In response to detecting lift off of the first input (e.g., lift off of contact  6100 - 5  in  FIG. 6S ) by the user from the touch screen display at the destination object or at the area associated with the destination object, the device performs an action on the first user interface object and the two or more user interface objects (e.g., the device associates images D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33  and D 36  with the “School garden” event that is associated with destination object  6008 , as shown in  FIG. 6X ). The action is associated with the destination object (e.g., “School garden” event icon  6008  in  FIG. 6S ). Exemplary actions include, without limitation: associating a label with digital content or an electronic document; moving digital content or an electronic document from one event to another event; moving digital content or an electronic document to a folder; and printing/publishing a copy of the digital content or electronic document. 
     As an example of movement of the first input to an area associated with a destination object, in  FIG. 6T , the destination object is the “School garden” icon  6008  and the area associated with the “School garden” icon  6008  is a rectangular area  6076  that includes an array  6072  of images labeled as being images of the “School garden” event. In this example, the first input by the user (e.g., contact  6100 ) is moved (e.g., movement  6116  in  FIG. 6T ) to a location  6100 - 6  within the area  6076  that is associated with the destination object “School garden” icon  6008 . While the device is detecting the contact (e.g.,  6100 - 6  in  FIG. 6T ) in the area  6076  that is associated with the destination object  6008 , the device detects lift off of the first input  6100  by the user, as shown in  FIG. 6U . In response to detecting the lift off of the user input (e.g., the release of contact  6100 - 6  in  FIG. 6U ), the device performs an action on the user interface objects (e.g., D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33  and D 36 ) that were associated with the first input by the user (e.g., contact  6100 ). The action is associated with the destination object  6008 . In this example, the device associates images D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33  and D 36  with the “School garden” event  6008  and displays an animation of representations of the user interface objects (e.g., D 10 ′, D 13 ′, D 16 ′, D 19 ′, D 22 ′, D 30 ′, D 31 ′, D 33 ′ and D 36 ′ in  FIGS. 6V and 6W ) moving into the array  6072  of images labeled as being images of the “School garden” even. In some embodiments, the user interface objects are associated with the new array  6072  in addition to being associated with the old array  6078  of user interface objects to which the user interface objects previously belonged. In contrast, in other embodiments (e.g., as shown in  FIG. 6X ), the user interface objects (e.g., D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33  and  36 ) are associated with the new array (e.g., “School garden” array  6072 ) and disassociated with the old array to which they previously belonged (e.g., “Day at the zoo” array  6078 ). In FIG.  6 X, the user interface objects D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33  and D 36  are shown in the new array  6072  of user interface objects, while they are not shown in the old array  6078  of user interface objects, and the remaining user interface objects (e.g., D 1 -D 9 , D 11 -D 12 , D 14 -D 15 , D 17 -D 18 , D 20 -D 21 , D 23 -D 25 , D 26 , D 29 , D 32  and D 34 -D 35 ) in the old array  6078  of user interface objects are rearranged to fill in the gaps caused by the removal of the user interface objects D 10 , D 13 , D 16 , D 19 , D 22 , D 30 , D 31 , D 33  and  36 . 
       FIGS. 13A-13B  are flow diagrams illustrating a method  1300  of zooming and rearranging user interface objects in an array with a multifinger gesture in accordance with some embodiments. The method  1300  is performed at a computing device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a touch screen display (e.g.,  112  in  FIGS. 7A-7O ). Some operations in method  1300  may be combined and/or the order of some operations may be changed. 
     As described below, the method  1300  provides a way to keep track of a particular user interface object in an array when the array is rearranged after enlargement of the particular user interface object (and, typically, other user interface objects in the array) in response to a multitouch gesture. The method reduces the cognitive burden on a user of finding the particular user interface object after rearrangement of the array by keeping the particular user interface object at the same (or substantially the same) vertical position on the touch screen display just before and just after the rearrangement of the array, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to faster and more efficiently locate a user interface object in an array conserves power and increases the time between battery charges. 
     The device simultaneously displays ( 1302 ) on the touch screen display (e.g.,  112  in  FIG. 7A ) a plurality of user interface objects (e.g., digital images S 1 -S 41  in  FIG. 7A ) in an array  7002  (e.g., an array of digital images for an event labeled “School garden”  FIG. 7A ). The plurality of user interface objects in the array are displayed in a first arrangement  7002 - 1  (e.g., an array with three rows, with images in increasing number/time going from left to right across each row, from top to bottom in the array, as shown in  FIG. 7A , where S 1  has an earlier time than S 2  and S 2  has an earlier time than S 3 , and so on). A first user interface object (e.g., image S 23 ) in the plurality of user interface objects is displayed at a first size (e.g., one half inch tall). The first arrangement comprises a first plurality of rows (e.g., three rows, S 1 -S 18 , S 19 -S 34  and S 35 -S 41 ). 
     The device detects ( 1304 ) simultaneous contacts (e.g.,  7004  and  7006  in  FIG. 7B ) by a plurality of fingers (e.g., two fingers) on the array  7002 . The simultaneous contacts have a corresponding centroid (e.g.,  7008 ,  FIG. 7B ) position at the first user interface object. For example, when simultaneous contacts  7004 - 1  and  7006 - 1  are initially made on the touch screen display, the position of the centroid  7008 - 1  of the simultaneous contacts is located within the first user interface object S 23 . 
     The device detects ( 1306 ) a gesture (e.g., a depinch gesture) made by the simultaneous contacts that corresponds to a command to zoom in by a user-specified amount. For example, in  FIG. 7C , the simultaneous contacts include a first contact  7004 - 1  and a second contact  7006 - 1  and the device detects a depinch gesture (e.g., a gesture where the simultaneous contacts move apart from each other on the touch sensitive surface). In this example, the device detects movement  7010  of the first contact  7004 - 1  to a new position of the first contact (e.g., contact  7004 - 2  in  FIG. 7D ). The device also detects movement  7012  of the second contact  7006 - 1  to a new position of the second contact (e.g., contact  7006 - 2  in  FIG. 7D ). 
     In response to detecting the gesture (e.g., the depinching gesture) by the simultaneous contacts, the device enlarges ( 1308 ) the first user interface object (e.g., S 23  in  FIG. 7D ) to a second size larger than the first size on the touch screen display (e.g., one inch tall). In some embodiments, in response to detecting the gesture by the simultaneous contacts, the device enlarges ( 1310 ) other user interface objects (e.g., S 4 -S 11 , S 21 -S 22 , S 24 -S 28 , S 38 -S 41 , etc. in  FIG. 7D ) in the array at the same time as the first user interface object and by the same amount as the first user interface object. In other words, if the first interface object S 23  is one half inch tall before the gesture is detected and one inch tall after the gesture is detected, then if the other user interface objects in  FIG. 7C  are one half inch tall before the gesture is detected, they will also be one inch tall after the gesture has been detected, as illustrated in  FIG. 7D . In some embodiments, respective user interface objects in the array maintain ( 1312 ) their respective positions in the array during the enlarging. For example, in  FIG. 7D , respective images in the array  7002 - 1  with three rows maintain their respective positions in the array during the enlarging, even though not all of the images are displayed on the touch screen display after the enlarging. 
     After enlarging the first user interface object to the second size and while continuing to detect the simultaneous contacts on the touch screen display, the device determines ( 1314 ) an updated centroid position (e.g.,  7008 - 2  in  FIG. 7D ) of the simultaneous contacts. The updated centroid position is located at a first vertical position on the touch screen display immediately prior to ceasing to detect the simultaneous contacts. As shown in  FIG. 7D , the vertical position of the updated centroid  7008 - 2  is higher on the display than the initial vertical position of the centroid  7008 - 1 . In this case, the vertical movement (e.g.,  7014  in  FIG. 7D ) of the centroid from its initial position  7008 - 1  to its updated position  7008 - 2  is due to an uneven depinch gesture, where one of the contacts (e.g., contact  7004 ) moved further from the initial centroid position than the other contact (e.g., contact  7002 ) during the depinch gesture. However, it should be understood that both of the contacts (e.g.,  7002  and  7004 ) could move simultaneously either up or down on the display (e.g., as illustrated in  FIGS. 7J-7K ), which would also result in vertical movement of the updated centroid position. 
     The device ceases ( 1316 ) to detect the simultaneous contacts (e.g., detecting lift off of all of the simultaneous contacts  7004 - 2  and  7006 - 2  in  FIG. 7D , as shown in  FIG. 7E ). 
     In response to ceasing to detect the simultaneous contacts, the device displays ( 1318 ) an animation of the plurality of user interface objects in the array rearranging to form a second arrangement. The second arrangement typically conforms the layout of the enlarged user interface objects to a predefined area of the display (such as the area where a plurality of arrays are being displayed). The second arrangement comprises a second plurality of rows different from the first plurality of rows. The first user interface object is displayed in a row in the second arrangement that includes (e.g., overlaps) the first vertical position on the touch screen display. 
     For example, in  FIG. 7F  the user interface objects are shown rearranging to form a second arrangement. In this example, the user interface objects have divided into groups of user interface objects (e.g., S 2 -S 7 , S 8 -S 12 , S 19 -S 20 , S 21 -S 27 , S 28 -S 30  and S 36 -S 41 ). In this example, there are fewer groups of user interface objects than there are user interface objects (e.g., in some embodiments, the user interface objects do not move independently, but rather move in groups). For this example, within each group of user interface objects, the user interface objects do not move relative to each other. For example, the horizontal neighbors to S 23  (e.g., S 22  and S 24  in  FIG. 7E ) remain the horizontal neighbors of S 23  in  FIGS. 7F and 7G  while the animation is being displayed, and continue to be the neighbors of S 23  in the second arrangement, as shown in  FIG. 7H . In contrast the vertical neighbors of S 23  (e.g., S 6 , S 40  and S 41  in  FIG. 7E ) in this example cease to be neighbors of S 23 , because they are not part of the same group as S 23 . In this example, each of these groups of user interface objects moves independently to a location in the second arrangement.  FIG. 7G  illustrates a continuation of the exemplary animation as the groups of user interface objects rearrange to form the second arrangement of the array  7002 - 2  ( FIG. 7H ). 
     As noted above, the second arrangement comprises a second plurality of rows different from the first plurality of rows. For example, in array  7002 - 2  in  FIG. 7H , there are six rows: S 1 -S 7 , S 8 -S 13 , S 14 -S 20 , S 21 -S 27 , S 28 -S 34  and S 35 -S 41 , as opposed to the three rows in array  7002 - 1  that were displayed by the device before rearranging the user interface objects, as illustrated in  FIG. 7A . 
     As noted above, the first user interface object S 23  is displayed in a row in the second arrangement that includes (e.g., overlaps) the first vertical position (e.g., the vertical position of the updated centroid  7008 - 2  in  FIGS. 7D-7H ) on the touch screen display. In some embodiments, the user interface objects in the second arrangement are arranged according to the same criteria as the user interface objects in the first arrangement (e.g., in increasing number/time going from left to right across each row, from top to bottom in the array, as shown in  FIG. 7H , where S 1  has an earlier time than S 2  and S 2  has an earlier time than S 3 , and so on), while taking into account the change in size of the objects and the resulting change in the number of rows. 
     The first user interface object has a vertical position on the touch screen display. In some embodiments, the vertical position of the first user interface object moves ( 1320 ) in accordance with detected vertical movement of the centroid of the simultaneous contacts prior to ceasing to detect the simultaneous contacts. For example, in  FIG. 7D  the centroid position of the simultaneous contacts is shown as having moved a vertical distance  7014  from the initial centroid position. In this example, as shown in  FIG. 7D , the vertical position of the first user interface object S 23  moves by an amount that corresponds to the vertical movement  7014  of the centroid of the simultaneous contacts. 
     In some embodiments, the plurality of user interface objects are ( 1322 ) displayed at the second size in the second arrangement. For example, in  FIG. 7H , the user interface objects (e.g., S 1 -S 41 ) are shown as being one inch high in the second arrangement (e.g., the arrangement in  FIG. 7H  with six rows of user interface objects). 
     In some embodiments, an analogous rearrangement process occurs after the device detects a gesture made by the simultaneous contacts that corresponds to a command to zoom out by a user-specified amount (e.g., a two-finger pinch gesture) and then the device ceases to detect the simultaneous contacts. 
     An illustrative example of the analogous rearrangement process is described below with reference to  FIGS. 7I-7O . The device detects simultaneous contacts (e.g.,  7016  and  7018  in  FIG. 7I ) by a plurality of fingers (e.g., two fingers) on the array  7002 - 2 . The simultaneous contacts have a corresponding centroid (e.g.,  7020  in  FIG. 7I ) position at a first user interface object. For example, when the simultaneous contacts  7016 - 1  and  7018 - 1  are initially made on the touch screen display, the position of the centroid  7020 - 1  of the simultaneous contacts is located within the first user interface object S 9 . 
     Continuing this example, in  FIG. 7I , the simultaneous contacts include a first contact  7016 - 1  and a second contact  7018 - 1  and the device detects a pinch gesture (e.g., a gesture where the simultaneous contacts move towards each other on the touch sensitive surface). In this example, the device detects movement  7022  of the first contact  7016 - 1  to a new position of the first contact (e.g.,  7016 - 2  in  FIG. 7J ) and movement  7024  of the second contact  7018 - 1  to a new position of the second contact (e.g.,  7018 - 2  in  FIG. 7J ). In response to detecting the pinching gesture, the device reduces the size of the first user interface object (e.g., S 9  in  FIG. 7J ) to a new size (e.g., three quarters of an inch tall) smaller than the previous size (e.g., one inch tall) on the touch screen display. In some embodiments, in response to detecting the gesture by the simultaneous contacts, the device reduces the size of other user interface objects (e.g., S 4 -S 11 , S 21 -S 22 , S 24 -S 28 , S 38 -S 41 , etc. in  FIG. 7J ) in the array at the same time as the first user interface object (e.g., S 9  in  FIG. 7J ) and by the same amount as the first user interface object. In other words, if the first interface object S 9  is one inch tall before the gesture is detected and three quarters of an inch tall after the gesture is detected, then if the other user interface objects in  FIG. 7I  are one inch tall, they will be three quarters of an inch tall after the gesture has been detected, as illustrated in  FIG. 7J . In some embodiments, respective user interface objects in the array maintain their respective positions in the array during the reducing. For example, in  FIG. 7J , there are still six rows of images that are arranged in ascending order left to right, top to bottom, and each of the images is still next to the same images that it was next to before the images were reduced in size (e.g., in  FIG. 7I ). 
     In some embodiments, after detecting the pinching gesture, the device detects additional movement of the contacts. In the present example, this additional movement is a vertical translation of the contacts (e.g.,  7016 - 2  and  7018 - 2  in  FIG. 7J ) down the touch screen, including movement (e.g., movements  7026  and  7028 , respectively in  FIG. 7J ) of the contacts downwards to new positions (e.g.,  7016 - 3  and  7018 - 3  in  FIG. 7K ) on the touch screen display. As the contacts move downwards, the current centroid (e.g.,  7020 - 1  in  FIG. 7J ) position of the contacts also moves downwards ( 7030  in  FIG. 7K ) to a new position (e.g.,  7020 - 2  in  FIG. 7K ), as does the entire array  7002 . 
     In the present example, after reducing the size of the first user interface object to the second size and while continuing to detect the simultaneous contacts on the touch screen display, the device determines the updated centroid (e.g.,  7020 - 2  in  FIG. 7K ) position of the simultaneous contacts. The updated centroid (e.g.,  7020 - 2  in  FIG. 7K ) position is located at a first vertical position on the touch screen display immediately prior to ceasing to detect the simultaneous contacts. As shown in  FIG. 7K , the vertical position of the updated centroid  7020 - 2  is lower on the display than the initial vertical position of the centroid  7020 - 1 . In this case, the vertical movement (e.g.,  7030  in  FIG. 7K ) of the centroid from its initial position  7020 - 1  to its updated position  7020 - 2  is due to a movement of the simultaneous contacts (e.g.,  7016  and  7018 ) after the pinch gesture was detected. But it should be understood that the position of the centroid may change at any time due to the movement of one or more of the simultaneous contacts. 
     Continuing this example, the device ceases to detect the simultaneous contacts (e.g., detecting lift off of all of the simultaneous contacts, as shown in  FIG. 7L ). In response to ceasing to detect the simultaneous contacts, the device displays an animation of the plurality of user interface objects in the array rearranging to form a third arrangement. The third arrangement typically conforms the layout of the reduced user interface objects to a predefined area of the display (such as the area where a plurality of arrays are being displayed). For example, in  FIGS. 7M-7O  the user interface objects are shown rearranging to form a third arrangement of the array  7002 - 3 . In this example, the user interface objects have divided into groups of user interface objects (e.g., S 1 -S 7 , S 8 -S 12 , S 13 , S 14 -S 20 , S 21 -S 24 , S 25 -S 27 , S 28 -S 34 , S 35 -S 36  and S 37 - 41 ). It should be noted that these groups of user interface objects are different from the groups of user interface objects formed in the previous example. In this example, within each group of user interface objects, the user interface objects do not move relative to each other. For example, the horizontal neighbors to S 9  (e.g., S 8  and S 10  in  FIG. 7L ) remain neighbors of S 9  in  FIGS. 7M and 7N  while the animation is being displayed, and continue to be the neighbors of S 9  in the second arrangement as shown in  FIG. 7O . In contrast the vertical neighbors of S 9  (e.g., S 3 , S 15  and S 16  in  FIG. 7L ) in this example cease to be neighbors of S 9  while the animation is displayed, because they are not part of the same group as S 9 . In this example, each of these groups of user interface objects moves independently to a location in the third arrangement.  FIG. 7N  illustrates a continuation of the exemplary animation as the groups of user interface objects rearrange to form the third arrangement.  FIG. 7O  illustrates the third arrangement of the array  7002 - 3 . 
     It should be noted that in the third arrangement (e.g., the arrangement in  FIG. 7O  with four rows: S 1 -S 12 , S 13 -S 24 , S 25 -S 36 , S 37 -S 41 ), the user interface object (e.g., S 9 ) that was proximate to the updated centroid position  7020 - 2  when the simultaneous contacts were released (e.g., as shown in  FIG. 7L ) is at the same vertical position as the updated centroid position  7020 - 2 , even though it is not at the same horizontal position. Typically, if the user is attempting to manipulate a particular user interface object, that object will be proximate to the centroid of any multitouch gesture performed by the user to resize the array. By positioning the user interface object that was proximate to the updated centroid position at the same vertical position as the updated centroid position immediately prior to lift off of the simultaneous contacts, the user interface object that the user was manipulating remains at the same (or nearly the same) vertical position on the touch screen display. Thus, the user is able to more easily locate this user interface object after rearrangement of the array. 
       FIGS. 14A-14I  are flow diagrams illustrating a method  1400  of manipulating user interface objects in a plurality of arrays of user interface objects in accordance with some embodiments. The method  1400  is performed at a computing device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a touch screen display (e.g.,  112  in  FIGS. 8A-8UU ). Some operations in method  1400  may be combined and/or the order of some operations may be changed. 
     As described below, the method  1400  provides an intuitive way to manipulate user interface objects in large data sets at a computing device with a touch screen display. The method reduces the cognitive burden on a user when performing actions on user interface objects in large data sets, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to manipulate user interface objects in a plurality of arrays faster and more efficiently conserves power and increases the time between battery charges. 
     The device simultaneously displays ( 1402 ) on the touch screen display (e.g.,  112  in  FIG. 8A ) at least one destination object (e.g., an array name icon in a list or menu of such icons, such as one or more of array name icons  8004 ,  8006 ,  8008 ,  8010 ,  8012 ,  8014 ,  8016 ,  8018 ,  8020 ,  8022 ,  8024 ,  8028 ,  8030 ,  8032 ,  8034 ,  8038 ,  8040 ,  8042 ,  8044 ,  8046 ,  8048 , and/or  8050 ) and at least a subset of a plurality of arrays of user interface objects. For example, as shown in  FIG. 8A , there are two arrays of user interface objects, a “Day at the zoo” array  8052  that includes a plurality of user interface objects (e.g., digital images D 1 -D 36 ) from an event labeled “Day at the zoo” and a “School garden” array  8054  that includes a plurality of user interface objects (e.g., S 1 -S 41 ). Depending on the number of arrays, it may not be possible to simultaneously display every array in the plurality of arrays. In such cases, a subset of the plurality of arrays is displayed and different subsets may be viewed by scrolling the plurality of arrays (e.g., in response to detecting a first finger swipe gesture on the touch screen display, such as a vertical or substantially vertical finger swipe gesture, as described in greater detail below with reference to  FIGS. 8B-8D ). 
     In some embodiments, the device displays ( 1404 ) a respective representative user interface object (e.g., digital image S 33 - r , which is representative of the digital images in array  8054  in  FIG. 8A ) adjacent to a respective array (e.g., the “School garden” array  8054  in  FIG. 8A ) for at least some arrays in the plurality of arrays. 
     In some embodiments, the device displays ( 1406 ) a respective representative user interface object toggle icon (e.g., icon  8056  in  FIG. 8A ) for a respective array (e.g.,  8054  in  FIG. 8A ) in the plurality of arrays. The representative user interface object toggle icon is operable to toggle display of the respective representative user interface object (e.g., image S 33 - r  in  FIG. 8A ) on and off. In some embodiments, each array in the plurality of arrays has ( 1408 ) a corresponding representative user interface object toggle icon. 
     In some embodiments, the representative user interface object toggle icon (e.g., S 33 - r  in  FIG. 8A ) is ( 1410 ) displayed adjacent to a respective representative user interface object when the respective representative user interface object is displayed and the representative user interface object toggle icon (e.g.,  8056  in  FIG. 8A ) is displayed adjacent to a respective array (e.g.,  8054  in  FIG. 8Q ) when the respective representative user interface object is not displayed, as illustrated in  FIG. 8Q , which is described in more detail below. In some embodiments, the device displays ( 1412 ) a respective array name icon (e.g., “School garden”  8058  in  FIG. 8A ) adjacent to the respective representative user interface object toggle icon (e.g.,  8056  in  FIG. 8A ). 
     The device detects ( 1414 ) a first input by a user (e.g., a vertical or substantially vertical finger swipe gesture or stylus swipe gesture) on the touch screen display. For example, in  FIG. 8B , the device detects a vertical swipe gesture that includes a contact  8060 - 1  with the touch screen display and subsequent movement  8062  of the contact along the touch screen display to a new location (e.g., contact  8060 - 2  in  FIG. 8C ). In some embodiments, the first input by the user may be detected anywhere on the touch screen display. In some embodiments, the first input by the user must be detected in a predefined area on the touch screen display, such as the area that displays the plurality of arrays (as shown in  FIG. 8B ). 
     In response to detecting the first input by the user on the touch screen display, the device vertically scrolls ( 1416 ) the plurality of arrays on the touch screen display. For example, in  FIG. 8B , the currently displayed arrays are “Day at the zoo”  8052  and “School garden”  8054 . After detecting the first input by the user (e.g., swipe gesture including contact  8060 - 1  and movement  8062  of the contact in  FIG. 8B ), the device scrolls through the arrays so that new arrays (e.g., the “Family reunion” array  8064  and the “Southern Europe” array  8066  in  FIG. 8C ) are displayed in the display region. In this example, the newly displayed arrays each include a plurality of user interface objects: the “Family reunion” array  8064  includes 17 user interface objects” (e.g., F 1 -F 17 ), all of which are displayed; and the “Southern Europe” array  8066  includes 74 user interface objects, only some of which (e.g., E 1 -E 54 ) can be displayed, while other user interface objects in the array (e.g., E 55 -E 74 ) are not displayed, but can be revealed by the device in response to gestures from the user. 
     In some embodiments the device continues to scroll (e.g., as illustrated by arrow  8068  in  FIG. 8C ) the display of the device for a predetermined period of time after the device detects the end of the first user input (e.g., the end of the movement of the contact along the touch sensitive-surface during the swipe gesture). In some embodiments, this movement after detecting an end of the first user input gradually slows down, creating an inertia-like effect, as though the arrays were sliding along a physical surface and gradually slow down due to friction. 
     The device detects ( 1418 ) a second input by the user (e.g., a horizontal or substantially horizontal finger swipe gesture or stylus swipe gesture) on a single array in the plurality of arrays on the touch screen display. For example, in  FIG. 8D , the second input is a horizontal swipe gesture that includes a contact  8070 - 1  with an array  8066  and subsequent movement  8072  of the contact to a new location (e.g.,  8070 - 2  in  FIG. 8E ). 
     In response to detecting the second input by the user on the single array, the device horizontally scrolls ( 1420 ) user interface objects in the single array without horizontally scrolling other arrays in the plurality of arrays. In the example above, user interface objects in the array (e.g.,  8066  in  FIG. 8D ) are scrolled horizontally (e.g., to the left) so that some of the previously displayed user interface objects are hidden (e.g., in  FIG. 8D , before the scrolling of the user interface objects, user interface objects E 1 -E 24  are displayed, while in  FIG. 8E , after the scrolling of the user interface objects, user interface objects E 1 -E 24  are no longer displayed.) Similarly, in the example above, some of the user interface objects that were previously hidden are displayed as a result of the horizontal scrolling (e.g., in  FIG. 8D , before the scrolling of the user interface objects, user interface objects E 55 -E 74  are not displayed, while in  FIG. 8E , after the scrolling of the user interface objects, user interface objects E 55 -E 74  are displayed.) 
     In some embodiments, the device displays a rubber-band-like effect to indicate that either the beginning or the end of an array is being displayed during detection of a horizontal scrolling gesture. To indicate the end of an array is being displayed, there is an invisible vertical edge  8074  at the right side of the display ( FIG. 8E ). The user interface objects in an array (e.g., array  8066 ,  FIG. 8E ) are horizontally scrolled (e.g., as shown by the leftward pointing arrow  8076  in  FIG. 8E ) beyond that edge during detection of a horizontal scrolling gesture (e.g., by contact  8070 ). After detecting lift off of the contact (e.g., lift off of  8070 - 2  in  FIG. 8E ), the device horizontally scrolls (e.g., as shown by the rightward pointing arrow  8078  in  FIG. 8E ) the user interface objects in the array  8066  back towards the edge  8074  so that the right edge of the rightmost user interface objects at the end of the array (e.g., images E 73  and E 74  in  FIG. 8F ) are proximate to the edge  8074 . A rubber-band-like effect that is used to indicate that the beginning an array is being displayed during detection of a horizontal scrolling gesture is described in operation  1421  below. 
     As a further example of the device scrolling a single array of user interface objects horizontally, the device may also detect a horizontal swipe gesture including a contact (e.g.,  8080 - 1  in  FIG. 8G ) with an array (e.g.,  8066  in  FIG. 8G ) and subsequent movement (e.g.,  8082  in  FIG. 8G ) of the contact to a new location (e.g.,  8080 - 2  in  FIG. 8H ). In this example, after detecting the horizontal swipe gesture on the array (e.g.,  8066  in  FIG. 8G ), the device horizontally scrolls user interface objects in the single array to the right without horizontally scrolling other arrays in the plurality of arrays. In this example, user interface objects in the array (e.g.,  8066  in  FIG. 8G ) are scrolled horizontally (e.g., to the right) so that some of the previously displayed user interface objects are hidden (e.g., in  FIG. 8G , before the scrolling of the user interface objects, user interface objects E 55 -E 74  are displayed, while in  FIG. 8H , after the scrolling of the user interface objects, user interface objects E 55 -E 74  are no longer displayed.) Similarly, in this example, some of the user interface objects that were previously hidden are displayed as a result of the horizontal scrolling (e.g., in  FIG. 8G , before the scrolling of the user interface objects, user interface objects E 1 -E 24  are not displayed, while in  FIG. 8H , after the scrolling of the user interface objects, user interface objects E 1 -E 24  are displayed.) 
     In some embodiments, the device displays ( 1421 ) respective representative user interface objects for respective arrays (e.g., representative images F 8 - r  and E 45 - r  in  FIG. 8G ). The respective representative user interface objects are aligned to a common vertical edge on the touch screen display. For example, in  FIG. 8G , the edges of the representative user interface objects (e.g., representative images F 8 - r  and E 45 - r  in  FIG. 8G ) are aligned with vertical edge  8084 . The device displays a first portion of the single array adjacent to a representative user interface object for the single array (e.g., images E 25 -E 74  in  FIG. 8G ). The device detects an input by the user (e.g., a finger contact  8080 - 1  or stylus contact) on the single array. The device detects a movement (e.g., movement  8082  in  FIG. 8G ) of the input by the user on the touch screen display. In response to detecting the movement, the device horizontally scrolls (e.g., as shown in  FIGS. 8G-8H ) the single array (e.g.,  8066  in  FIGS. 8G-8H ) on the touch screen display in a first direction to display a second portion of the single array (e.g., images E 1 -E 45  in array  8066 , as shown in  FIG. 8H ). The second portion (e.g., images E 1 -E 45  in  FIG. 8H ) is different from the first portion (e.g., images E 25 -E 74  in  FIG. 8G ). In response to an edge of the single array being reached while horizontally scrolling the single array in the first direction while the input by the user is still detected on the touch screen display (e.g., contact  8070 - 2  in  FIG. 8H ), the device displays horizontal movement (e.g., movement  8086  in  FIG. 8H ) of the representative user interface object (e.g., image E 45 - r  in  FIG. 8H ) for the single array (e.g.,  8066  in  FIG. 8H ) in the first direction and the device displays horizontal movement of the single array in the first direction, (e.g., user interface objects E 25 -E 74  move to the right from  FIG. 8G  to  FIG. 8H ). In some embodiments, the edge of the single array corresponds to an edge of a first user interface object (e.g., E 1 , E 2  or E 3  in  FIG. 8H ) in the single array (e.g.,  8066  in  FIG. 8H ), such as a leftmost user interface object in the single array. In response to detecting lift off of the input (e.g., contact  8070 - 2  in  FIG. 8H ) by the user (e.g., lift off of the finger contact or stylus contact) from the touch screen display, the device displays horizontal movement (e.g., movement  8088  in  FIG. 8H ) of the representative user interface object for the single array (and the single array) in a second direction (e.g., to the left) that is opposite the first direction (e.g. the prior movement  8086  in  FIG. 8H  of the representative user interface object E 45 - r  and the array to the right) until the representative user interface object for the single array aligns with the common vertical edge (e.g., the left edge of image E 45 - r  aligns with vertical edge  8084 ). 
     In some embodiments, the device displays ( 1422 ) a list of array name icons (e.g., in  FIGS. 8A and 8I , the event list  8002  with event icons  8004 ,  8006 ,  8008 ,  8010 ,  8012 ,  8014 ,  8016 ,  8018 ,  8020 ,  8022  and  8024 ) that correspond to the plurality of arrays. The list of array names is displayed adjacent to the displayed subset of the plurality of arrays. For example, array name icon “Day at the zoo”  8006  corresponds to the “Day at the zoo” array  8052  shown in  FIG. 8A ; array name icon “School garden”  8008  corresponds to the “School garden” array  8054  shown in  FIG. 8A ; array name icon “Family reunion”  8010  corresponds to the “Family reunion” array  8064  shown in  FIG. 8I ; and the array name icon “Southern Europe”  8066  corresponds to the “Southern Europe” array  8066  shown in  FIG. 8I . 
     In some embodiments, the device detects ( 1424 ) a third input by the user (e.g., a finger tap gesture  8090  in  FIG. 8I , a stylus tap gesture, or a mouse click when a cursor controlled by the mouse is over the respective array name icon in the list) on a respective array name icon (e.g., “Day at the zoo”  8006  in  FIG. 8I ) in the list of array name icons. In response to detecting the third input by the user (e.g., tap gesture  8090  in  FIG. 8I ) on the respective array name icon (e.g.,  8006  in  FIG. 8I ) in the list of array name icons, the device displays an array corresponding to the respective array name icon (e.g., as shown in  FIG. 8K , the “Day at the zoo” array  8052  is displayed). 
     In some embodiments, the device detects ( 1426 ) a third input by the user (e.g., a finger tap gesture  8090  in  FIG. 8I , a stylus tap gesture, or a mouse click when a cursor controlled by the mouse is over the respective array name icon in the list) on a respective array name icon (e.g., “Day at the zoo”  8006  in  FIG. 8I ) in the list of array name icons. In response to detecting the third input by the user on the respective array name icon in the list of array name icons, the device scrolls (as shown in  FIGS. 8I-8K ) the plurality of arrays to an array corresponding to the respective array name icon (e.g., “Day at the zoo” array  8052  in  FIG. 8K ). 
     For example, in  FIG. 8I  the device detects a tap gesture  8090  on the “Day at the zoo” icon  8006 . The event list  8002  indicates that the “Day at the zoo” array is above the “Family reunion” array  8064 , and thus the device begins to scroll the plurality of arrays downwards (e.g., because the “Day at the zoo” array name icon in  FIG. 8I  is above the “Family reunion” array name icon in  FIG. 8I ). In response to detecting the tap gesture  8090 , the device scrolls ( 8092 , in  FIG. 8I ) the arrays (e.g.,  8064 ,  8066 ) towards the bottom of the display. As shown in  FIG. 8J , the device continues to scroll ( 8094  in  FIG. 8J ) the arrays towards the bottom of the display (e.g., the “Southern Europe” array  8066  begins to move off of the bottom of the screen) and scrolls newly displayed arrays from the top of the screen (e.g., the “School garden” array  8054  is displayed near the top of the screen in  FIG. 8J ). In this example, the device stops scrolling once the array (e.g.,  8052  in  FIG. 8K ) that is associated with the “Day at the zoo” array name icon (e.g.,  8006  in  FIG. 8K ) is displayed on the display. 
     In some embodiments, the device detects ( 1430 ) a depinching finger gesture (e.g., a two-finger depinching gesture) on a first array in the plurality of arrays. For example, in  FIG. 8K , the device detects simultaneous contacts (e.g.,  8096 - 1  and  8098 - 1  on the “School garden” array  8054  in  FIG. 8K ) and movement (e.g.,  8100  and  8102  in  FIG. 8K ) of the contacts to a new location (e.g.,  8096 - 2  and  8098 - 2  in  FIG. 8L ). In response to detecting the depinching finger gesture on the first array (e.g.,  8054  in  FIG. 8K ) in the plurality of arrays, the device enlarges user interface objects (e.g., S 13 -S 41  in  FIG. 8K  are enlarged and displayed as S 13 -S 41  in  FIG. 8L ) in the first array (e.g.,  8054  in  FIG. 8L ) without enlarging user interface objects in arrays other than the first array. For example, the user interface objects (e.g., images D 1 -D 36 ) in the “Day at the zoo” array in  FIG. 8K  are the same size as the user interface objects (e.g., images D 1 -D 36 ) in the “Day at the zoo” array  8052  in  FIG. 8L  after the zooming operation has been performed. In some embodiments, the user interface objects in the first array are ( 1432 ) enlarged up to a predetermined maximum size. In some embodiments, the user interface objects in the first array are ( 1434 ) enlarged by the same amount. 
     In some embodiments, the device displays ( 1436 ) a first representative user interface object adjacent to the first array (e.g., representative image S 33 - r  for array  8054  in  FIG. 8L ). In response to detecting the depinching finger gesture on the first array, the device enlarges the first representative user interface object (e.g., the representative image S 33 - r  is larger in  FIG. 8L  after the depinching gesture than the representative image S 33 - r  in  FIG. 8K  before the depinching gesture). In some embodiments, the first representative user interface object and the user interface objects in the first array are ( 1438 ) enlarged simultaneously. For example, the device detects simultaneous contacts (e.g.,  8096 - 1  and  8098 - 1  on the “School garden” array  8054  in  FIG. 8K ) and movement (e.g.,  8100  and  8102  in  FIG. 8K ) of the contacts to a new location (e.g.,  8096 - 2  and  8098 - 2  in  FIG. 8L ). In response to detecting this gesture, the device simultaneously enlarges the representative image S 33 - r  and images S 1 -S 39  in array  8054 , as shown in  FIGS. 8K-8L . 
     It should be noted that in the example shown in  FIG. 8L , when the user interface objects in the expanded array are expanded, the device is no longer able to display all of the user interface objects in a single view (e.g., in  FIG. 8L , user interface objects S 1 -S 12  are not displayed in the first array  8054 ). In some embodiments, in order to allow the user to access these user interface objects, the device rearranges the user interface icons, as described in greater detail above with reference to  FIGS. 7A-7O . In some embodiments, in order to allow the user to accesses these user interface objects the device changes the display of the user interface objects in the array in response to user inputs. For example, in response to a horizontal swipe gesture (e.g., contact  8104  and movement  8106  of the contact substantially horizontal to the direction of the array, as shown in  FIG. 8M ), the device scrolls the user interface objects in the array of user interface objects. In this example, user interface objects in the array (e.g.,  8054  in  FIG. 8M ) are scrolled horizontally (e.g., to the right) so that some of the previously displayed user interface objects are hidden (e.g., in  FIG. 8M , before the scrolling of the user interface objects, user interface objects S 31 -S 41  are displayed, while in  FIG. 8N , after the scrolling of the user interface objects, user interface objects S 31 -S 41  are no longer displayed.) Similarly, in the example above, some of the user interface objects that were previously hidden are displayed as a result of the horizontal scrolling (e.g., in  FIG. 8M , before scrolling the user interface objects, user interface objects S 1 -S 12  are not displayed, while in  FIG. 8N , after the scrolling of the user interface objects, user interface objects S 1 -S 12  are displayed.) 
     Conversely, in some embodiments, the device reduces the size of an array after detecting a pinching finger gesture (e.g., a two-finger pinching gesture) on a first array in the plurality of arrays. For example, in  FIG. 8N , the device detects simultaneous contacts (e.g.,  8108 - 1  and  8110 - 1  on the “School garden” array  8054  in  FIG. 8N ) and movement (e.g.,  8112  and  8114  in  FIG. 8N ) of the contacts to a new location (e.g.,  8108 - 2  and  8110 - 2  in  FIG. 8O ). In response to detecting the pinching finger gesture on the first array (e.g.,  8054  in  FIG. 8N ) in the plurality of arrays, the device reduces the size of user interface objects (e.g., images S 1 -S 30  in  FIG. 8N  are reduced in size as displayed as S 1 -S 30  in  FIG. 8O ) in the first array without reducing the size of the user interface objects in arrays other than the first array. For example, the user interface objects (e.g., images D 1 -D 36 ) in the “Day at the zoo” array in  FIG. 8M  are the same size as the user interface objects (e.g., images D 1 -D 36 ) in the “Day at the zoo” array  8052  in  FIG. 8O  after the zoom out operation has been performed. In some embodiments, the user interface objects in the first array are reduced in size down to a predetermined minimum size. In some embodiments, the user interface objects in the first array are reduced in size by the same amount. In some embodiments, when there is a representative user interface object for the array (e.g., image S 33 - r  in  FIG. 8M ) the representative user interface object is also resized (e.g., reduced in size). 
     In some embodiments, the user interface objects are resized about a centroid of the simultaneous user interface contacts (e.g.,  8108 - 2  and  8110 - 2  in  FIG. 8O ). For example, when the simultaneous contacts are proximate to a user interface object (e.g., S 17  in  FIG. 8O ) when they are initially detected by the device, as the device resizes the user interface objects, the user interface object (e.g., image S 17 ) which is proximate to the initial location of the simultaneous contacts (e.g.,  8108 - 1  and  8110 - 1  in  FIG. 8N ) is moved so as to remain proximate to the user interface contacts. For example, in  FIG. 8O , image S 17  remains in between the two simultaneous contacts, even though this means that the user interface objects are “pulled” off center. In other words, the user interface objects “under” the pinching gesture behave as though they are on a sheet of rubber that is being contracted in accordance with the pinch, but is “stuck” under the contacts. In this embodiment, when the device detects a lift off of the contacts (e.g.,  8108 - 2  and  8110 - 2  in  FIG. 8O ), the device moves (e.g.,  8116  in  FIG. 8O ) array of user interface objects so as to align the array with a vertical edge that other arrays are aligned with ( FIG. 8P ). 
     In some embodiments, the device detects ( 1440 ) activation of a respective representative user interface object toggle icon (e.g., icon  8056  in  FIG. 8P ) for a respective array (e.g., detecting a finger tap gesture  8118  in  FIG. 8P  or a stylus tap gesture on the toggle icon). In response to detecting activation of the respective representative user interface object toggle icon, the device toggles display of the respective representative user interface object for the respective array. For example, in  FIG. 8P  a representative image S 33 - r  is displayed with the “School garden” array  8054 . As shown in  FIG. 8Q , in response to activation of toggle icon  8056 , the device ceases to display the representative image S 33 - r.    
     In some embodiments, in response to detecting activation of the respective representative user interface object toggle icon (e.g.,  5086  in  FIG. 8P ), the device rearranges ( 1442 ) user interface objects in the respective array. For example, when the representative user interface object is displayed, the user interface objects in the respective array are displayed with the same height and the same width, and the objects are ordered sequentially by columns (e.g., successive user interface objects are ordered top-to-bottom, left-to-right in the array, as illustrated in  FIG. 8P ). But when the representative user interface object is not displayed, the user interface objects in the respective array are displayed with the same height and the objects are ordered sequentially by rows (e.g., successive user interface objects are ordered left-to-right, top-to-bottom in the array, as illustrated in  FIG. 8Q ). 
     In some embodiments, a single array in the plurality of arrays is rearranged in response to multifinger gestures as described above with respect to  FIGS. 7A-7O and 13A-13B . 
     In some embodiments, while the single array is displayed without the representative user interface object (e.g., as in  FIG. 8Q ) the device detects a second activation of the respective representative user interface object toggle icon (e.g.,  8056  in  FIG. 8Q ) for a respective array (e.g., by detecting a mouse click while a cursor  8120  in  FIG. 8Q  is positioned over the respective representative user interface object toggle icon, a finger tap gesture, or a stylus tap gesture on the toggle icon). For example, in  FIG. 8Q , representative image S 33 - r  is not displayed with the “School garden” array  8054 , while in  FIG. 8R , after the second activation of the toggle icon  8056 , the device displays the representative image S 33 - r.    
     In some embodiments, the device detects ( 1444 ) a first input by the user (e.g., a press and hold finger contact  8122 - 1  in  FIG. 8R  or stylus contact) on a first user interface object (e.g., image D 17  in  FIG. 8R ) in a first array (e.g.,  8052  in  FIG. 8R ) on the touch screen display. While continuing to detect the first input by the user: the device detects movement (e.g.,  8124  in  FIG. 8S ) of the first input by the user across the touch screen display to an area (e.g.,  8126  in  FIG. 8S ) associated with a second array (e.g.,  8054  in  FIG. 8S ) on the touch screen display (e.g., an area containing the user interface objects in the second array); the device moves the first user interface object (e.g., from D 17  to D 17 ′ in  FIG. 8S ) in accordance with the movement of the first input by the user across the touch screen display to the area (e.g.,  8126  in  FIG. 8S ) associated with the second array (e.g.,  8054  in  FIG. 8S ) on the touch screen display; the device detects lift off of the first input by the user (e.g., lift off of the first finger contact  8122 - 2  in  FIG. 8S  or the stylus contact) from the area  8126  associated with the second array; and, in response to detecting lift off of the first input by the user from the area associated with the second array, the device associates the first user interface object with the second array (e.g., adds image D 17  to the “School garden” event array  8054 ) and displays the first user interface object in the second array (e.g., as shown in  FIGS. 8T-8U , where D 17  moves  8128  into array  8054 ). 
     In some embodiments, the device displays ( 1446 ) a residual image of the first user interface object in the first array on the touch screen display (e.g., shaded user interface object D 17  in  FIGS. 8S-8T ). In some embodiments, the residual image is displayed in the first array while the first input (e.g., contact  8122 - 1  in  FIG. 8S ) by the user is still detected on the touch screen display, but the residual image ceases to be displayed in response to detecting lift off of the first input (e.g., lift off of contact  8122 - 2  in  FIG. 8S ). 
     In some embodiments, in response to detecting lift off of the first input (e.g., lift off of contact  8122 - 2  in  FIG. 8S ) by the user (e.g., lift off of a first finger contact or stylus contact) from the area (e.g.,  8126  in  FIG. 8S ) associated with the second array (e.g.,  8054  in  FIG. 8S ), the device also displays ( 1448 ) the first user interface object in the first array and ceases to display the residual image of the first user interface object in the first array (i.e., the first user interface object is displayed in both the first array  8052  and the second array  8054 ). For example, in  FIG. 8U , the user interface object D 17  is displayed in both the first array  8052  and the second array  8054 . 
     In some embodiments, in response to detecting lift off of the first input (e.g., lift off of contact  8122 - 2  in  FIG. 8S ) by the user (e.g., lift off of the first finger contact or stylus contact by the user) from the area (e.g.,  8126  in  FIG. 8S ) associated with the second array (e.g.,  8054  in  FIG. 8S ), the device disassociates ( 1450 ) the first user interface object from the first array and ceases to display the residual image of the first user interface object in the first array. For example in  FIG. 8V , the user interface object D 17  is displayed only in the second array  8054 , and the user interface object D 17  has been removed from the first array  8052 . In some embodiments, the remaining user interface objects (e.g., images D 1 -D 16 , D 18 -D 36 ) in the first array are rearranged to fill in the space left by the removed user interface object, as shown in  FIG. 8V , while remaining in time/number order. 
     In some embodiments, a group of selected objects is formed and then the group is moved/acted upon, as described above with respect to  FIGS. 6A-6X, 11A-11B, and 12A-12B . 
     In some embodiments, the device detects ( 1452 ) activation of a respective array name icon that corresponds to a respective array (e.g., array  8052  in  FIG. 8V ) in the plurality of arrays (e.g., detecting a press and hold finger contact input  8130 - 1  or stylus contact by the user on the “Day at the zoo” array name icon  8132  in  FIG. 8V , which is displayed adjacent to a respective representative user interface object toggle icon). In response to detecting activation of the respective array name icon (e.g., “Day at the zoo”  8132  in  FIG. 8V ) that corresponds to the respective array (e.g.,  8052  in  FIG. 8V ), the device displays an animation of user interface objects in the respective array moving into a respective representative user interface object for the respective array. The animation indicates to a user that all of the user interface objects in the array are being grouped together. For example,  FIG. 8W , illustrates an animation of images D 1 ′, D 2 ′, D 3 ′, D 4 ′, D 5 ′, D 6 ′, D 7 ′, D 8 ′, D 9 ′, D 12 ′, D 15 ′, D 19 ′, D 25 ′, D 28 ′, D 31 ′, D 36 ′, etc. moving towards representative image D 7 - r , while residual user interface objects are displayed in the original locations of the user interface objects (e.g., shaded user interface objects D 32 , D 33 , D 34 , D 35 , D 36 , etc. in  FIG. 8W ). It should be understood that, in this example, all of the user interface objects in array  8052  are moving into representative user interface object D 7 - r , however, some of the user interface objects are shown as covering other user interface objects, and thus, not all of the user interface objects are visible in  FIG. 8W . 
     The device detects movement (e.g.,  8132  in  FIG. 8X ) of an input by the user (e.g., a finger contact  8130 - 1  or stylus contact) from the array name icon (e.g.,  8132  in  FIG. 8X ) to a destination object or an area associated with a destination object (e.g., area  8134  in  FIG. 8X ). The device moves the respective representative user interface object (e.g., from D 7 - r  to D 7 - r ′ in  FIG. 8X ) in accordance with the movement (e.g.,  8132  in  FIG. 8X ) of the input (e.g., contact  8130 - 1  moves to a new contact location  8130 - 2  in  FIG. 8X ) by the user across the touch screen display to the destination object or the area associated with a destination object (e.g., the area associated with the “Family reunion” event icon  8010  in  FIG. 8X ). In some embodiments, a counter (e.g.,  8136  in  FIG. 8X ) with the number (e.g., “35”) of user interface objects in the respective array is also displayed. 
     The device detects lift off of the input (e.g., contact  8130 - 2  is present in  FIG. 8X  and has lifted off in  FIG. 8Y ) by the user (e.g., lift off of the finger contact or stylus contact) from the touch screen display at the destination object or at the area (e.g.,  8134  in  FIG. 8Y ) associated with a destination object. In response to detecting lift off of the input by the user from the touch screen display at the destination object or at the area (e.g.,  8134  in  FIG. 8Y ) associated with the destination object, the device performs an action on the user interface objects in the respective array. The action is associated with the destination object. Exemplary actions include, without limitation: associating a label with digital content or an electronic document; moving digital content or an electronic document from one event to another event; moving digital content or an electronic document to a folder; and printing/publishing a copy of the digital content or electronic document. 
     In some embodiments, the action is ( 1454 ) performed on all of the user interface objects in the respective array (e.g., all of the user interface objects from the “Day at the zoo” array  8052  are made part of the “Family reunion” array  8064 , as illustrated in  FIG. 8AA ). 
     In some embodiments, in response to detecting activation of the respective array name icon that corresponds to the respective array, the device displays ( 1456 ) a counter (e.g.,  8136  in  FIG. 8X ) with the number of user interface objects (e.g., “35”) in the respective array. 
     In some embodiments, in response to detecting activation of the respective array name icon (e.g., contact  8130 - 1  with array name icon “Day at the zoo”  8132  in  FIG. 8X ) that corresponds to the respective array, the device displays ( 1458 ) residual images (e.g., shaded images D 1 , D 2 , D 3 , D 4 , D 5 , D 6 , D 7 , D 8 , D 9 , D 10 , D 11 , D 12 , D 13 , D 14 , D 15 , D 16 , D 18 , D 19 , D 20 , D 21 , D 22 , D 23 , D 24 , D 25 , D 26 , D 27 , D 28 , D 29 , D 30 , D 31 , D 32 , D 33 , D 34 , D 35 , D 36  in  FIGS. 8W-8Z ) of user interface objects in the respective array. 
     In some embodiments, in response to detecting lift off of the input by the user (e.g., lift off of the finger contact or stylus contact) from the touch screen display at the destination object or at the area associated with the destination object, the device displays ( 1460 ) the user interface objects in the respective array and ceases to display the residual images of user interface objects in the respective array (i.e., the user interface objects replace their residual images in the respective array). For example, in  FIGS. 8Y-8AA , after the device detects lift off of the contact  8130 - 2  ( FIG. 8Y ), the images D 1 -D 36  replace their residual images in array  8052 . In addition, the device replaces display of the representative user interface object (e.g., D 7 - r ′ in  FIG. 8Y ) and the counter (e.g.,  8136  in  FIG. 8Y ) with representations of the user interface objects (e.g., D 1 ′, D 2 ′, D 3 ′, D 4 ′, D 5 ′, D 6 ′, D 7 ′, D 8 ′, D 9 ′, D 10 ′, D 11 ′, D 12 ′, D 13 ′, D 14 ′, D 15 ′, D 16 ′, D 18 ′, D 19 ′, D 20 ′, D 21 ′, D 22 ′, D 23 ′, D 24 ′, D 25 ′, D 26 ′, D 27 ′, D 28 ′, D 29 ′, D 30 ′, D 31 ′, D 32 ′, D 33 ′, D 34 ′, D 35 ′, D 36 ′ in  FIG. 8Z ). In some embodiments, the device displays an animation of these user interface objects moving into the array associated with the destination object (e.g., “Family reunion” array  8064 ). In Figure AA, after the animation has completed, user interface objects D 1 ′, D 2 ′, D 3 ′, D 4 ′, D 5 ′, D 6 ′, D 7 ′, D 8 ′, D 9 ′, D 10 ′, D 11 ′, D 12 ′, D 13 ′, D 14 ′, D 15 ′, D 16 ′, D 18 ′, D 19 ′, D 20 ′, D 21 ′, D 22 ′, D 23 ′, D 24 ′, D 25 ′, D 26 ′, D 27 ′, D 28 ′, D 29 ′, D 30 ′, D 31 ′, D 32 ′, D 33 ′, D 34 ′, D 35 ′, D 36 ′ are shown as part of the “Family reunion” array  8064 , and corresponding user interface objects D 1 , D 2 , D 3 , D 4 , D 5 , D 6 , D 7 , D 8 , D 9 , D 10 , D 11 , D 12 , D 13 , D 14 , D 15 , D 16 , D 18 , D 19 , D 20 , D 21 , D 22 , D 23 , D 24 , D 25 , D 26 , D 27 , D 28 , D 29 , D 30 , D 31 , D 32 , D 33 , D 34 , D 35 , D 36  are simultaneously shown in the “Day at the zoo array”  8052 . 
     In some embodiments, in response to detecting lift off of the input by the user (e.g., lift off of the finger contact or stylus contact) from the touch screen display at the destination object or at the area associated with the destination object, the device disassociates ( 1462 ) the user interface objects from the respective array and ceases to display the residual images of the user interface objects in the respective array (not shown). 
     In some embodiments, in response to detecting movement of the input by the user from the array name icon, the device displays ( 1464 ) a residual image of the respective representative user interface object (e.g., shaded representative user interface object D 7 - r  in  FIGS. 8X-8Z ). In some embodiments, the residual image of the respective representative user interface object is ( 1466 ) displayed adjacent to a respective representative user interface object toggle icon (e.g.,  8138  in  FIG. 8Z ). 
     In some embodiments, the device detects ( 1468 ) activation of a menu category icon (e.g., activation of menu category icon “Events”  8002  for a plurality of array name icons for events  8004 ,  8006 ,  8008 ,  8010 ,  8012 ,  8014 ,  8016 ,  8018 ,  8020 ,  8022 ,  8024  in  FIG. 8AA  by a finger tap gesture  8140 , stylus gesture, or mouse click on the menu category icon). In response to detecting activation of the menu category icon (e.g., “Events”  8002 ), the device displays a plurality of representative user interface objects for respective arrays in a menu category that corresponds to the menu category icon, as shown in  FIG. 8CC . 
     In some embodiments, displaying the plurality of representative user interface objects includes overlaying ( 1470 ) the plurality of representative user interface objects on user interface objects displayed on the touch screen display immediately prior to detecting activation of the menu category icon. For example, in  FIG. 8CC , a plurality of representative user interface objects (e.g., representative images B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r ) are displayed overlaid on shaded images F 1 -F 17 , D 1 ′-D 16 ′, and D 18 ′-D 36 ′. In some cases, the representative objects appear as though they are layered on top of the previously displayed user interface. In some embodiments, the device displays an animation where the representative user interface objects (e.g., B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r ) are shown coming in from the edges (e.g., top, bottom, right and left sides) of the display and shrinking to fit onto the display. Thus, in  FIG. 8BB , the representative user interface objects (e.g., B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r ) are larger than the corresponding representative user interface objects in  FIG. 8CC , and the user interface objects that are adjacent to the edges of the touch screen display (e.g., B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , H 27 - r  and P 6 - r ) are only partially displayed. Additionally, in some embodiments, the representative user interface objects are initially displayed at a low opacity (e.g., 0% opacity or 10% opacity) and the opacity of the representative user interface objects is gradually increased as the representative user interface objects are reduced in size and moved onto the touch screen display. 
     In some embodiments, displaying the plurality of representative user interface objects (e.g., B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r  in  FIG. 8DD ) includes ceasing ( 1472 ) to display user interface objects displayed on the touch screen display immediately prior to detecting activation of the menu category icon, as shown in  FIG. 8DD . In other words, the user interface objects displayed on the touch screen display immediately prior to detecting activation of the menu category icon are replaced by display of the plurality of representative user interface objects for respective arrays in the menu category that corresponds to the activated menu category icon (e.g., as shown in  FIG. 8DD ). 
     In some embodiments, only the plurality of representative user interface objects (e.g., B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r  in  FIG. 8DD ) for respective arrays in the menu category that corresponds to the activated menu category icon are ( 1474 ) displayed on the touch screen display (e.g., as shown in  FIG. 8DD ). 
     In some embodiments, the device detects ( 1476 ) an input by the user (e.g., a finger tap gesture  8142  in  FIG. 8CC , stylus gesture, or mouse click) on a first representative user interface object (e.g., representative image B 1 - r  in  FIG. 8CC ) in the plurality of representative user interface objects (e.g., representative images B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r  in  FIG. 8CC ) for respective arrays in the menu category that corresponds to the activated menu category icon (e.g.,  8002  in  FIG. 8AA ). In response to detecting the input by the user on the first representative user interface object, the device ceases to display the plurality of representative user interface objects and displays an array (e.g., the “Birthday” array  8144  in  FIG. 8EE ) of user interface objects (e.g., images B 1 , B 2 , B 3 , B 4 , B 6 , B 7 , B 8 , B 9 , B 10 , B 11 , B 13 , B 14 , B 15 , B 16 , B 17 , B 18 , B 19 , B 20 , B 21 , B 22 , B 23 , B 24 , B 25 , B 26 , B 27 ) that correspond to the first representative user interface object (e.g., B 1 - r  in  FIG. 8CC ). 
     In some embodiments, in response to detecting the input by the user on the first representative user interface object (e.g., representative image B 1 - r  in  FIG. 8CC ), the device displays ( 1478 ) the first representative user interface object adjacent to the array (e.g., “Birthday” array  8144  in  FIG. 8EE ) of user interface objects that corresponds to the first representative user interface object (e.g., representative image B 1 - r  in  FIG. 8EE ). 
     In some embodiments, in response to detecting the input by the user on the first representative user interface object, the device displays ( 1480 ) arrays (e.g., “Day at the zoo” array  8052  in  FIG. 8EE ) of user interface objects (e.g., images D 1 , D 2 , D 3 , D 4 , D 5 , D 6 , D 7 , D 8 , D 9 , D 10 , D 11 , D 12 , D 13 , D 14 , D 15 , D 16 , D 18 , D 19 , D 20 , D 21 , D 22 , D 23 , D 24 , D 25 , D 26 , D 27 , D 28 , D 29 , D 30 , D 31 , D 32 , D 33 , D 34 , D 35 , D 36  in  FIG. 8EE ) that do not correspond to the first representative user interface object (e.g., arrays in the plurality of arrays that are adjacent to the array of user interface objects that corresponds to the first representative user interface object). 
     In some embodiments, selected object(s) are moved to a destination object (e.g., an item in sidebar menu) while input by the user (e.g., a finger contact or stylus contact) is on the destination object, as described above with respect to  FIGS. 5A-5Y and 9A-9D, 10A-10B . 
     In some embodiments, the device detects ( 1482 ) a third input by the user (e.g., a finger contact  8146  in  FIG. 8FF  or stylus contact) on a destination object (e.g., “Adorable children” label icon  8032  in  FIG. 8FF ). While continuing to detect the third input (e.g., contact  8146  in  FIGS. 8FF-8LL ) by the user on the destination object (e.g., “Adorable children” label icon  8032  in  FIG. 8FF-8LL ), the device detects a fourth input by the user on an array name icon (e.g., a finger tap gesture  8148 , stylus gesture, or mouse click by the user on an array name icon  8132  in  FIG. 8GG  displayed adjacent to a respective representative user interface object toggle icon e.g.,  8138  in  FIG. 8GG ). In response to detecting the fourth input (e.g., tap gesture  8148  in  FIG. 8GG ) by the user on the array name icon (e.g.,  8132  in  FIG. 8GG ), the device performs an action on all user interface objects (e.g., images D 1 -D 16 , D 18 -D 36  in  FIG. 8GG ) in an array (e.g., “Day at the zoo” array  8052  in  FIG. 8GG ) that corresponds to the array name icon (e.g.,  8132  in  FIG. 8GG ). The action is associated with the destination object (e.g., “Adorable children” label icon  8032  in  FIG. 8GG ). In some embodiments, the action is a preparatory action, such as preparing to perform an action that will occur upon detecting lift off of the third input (e.g., lift off of the third finger contact  8416  in  FIG. 8GG  by the user) from the destination object. Exemplary actions include, without limitation: associating a label with digital content or an electronic document; moving digital content or an electronic document from one event to another event; moving digital content or an electronic document to a folder; and printing/publishing a copy of the digital content or electronic document. 
     In some embodiments, in response to detecting the fourth input (e.g., tap gesture  8148  in  FIG. 8GG ) by the user on the array name icon (e.g.,  8132  in  FIG. 8GG ), the device displays ( 1484 ) an animation of user interface objects in the array (e.g.,  8052  in  FIGS. 8GG-8II ) that corresponds to the array name icon moving from respective initial object positions into the destination object. For example, in  FIGS. 8HH and 8II , the device displays representations of the images D 1 -D 16  and D 18 -D 36  moving into the destination object (e.g.,  8032  in  FIG. 8HH and 8II ). In this example, as each user interface object (e.g., D 11 ′ in  FIG. 8HH ) begins to move towards the destination object (e.g.,  8032  in  FIG. 8HH ), the device resizes the user interface object so as to match the dimensions of the destination object (e.g.,  8032  in  FIG. 8HH ). In the case of image D 11 ′, the object is taller and narrower than the destination object, so in a subsequent frame of the animation (shown in  FIG. 8II ) the user interface object D 11 ′ is has been resized so that it is shorter and wider than the original user interface object D 11  (in  FIG. 8GG , before the animation was displayed). This process is performed for some or all of the user interface objects in the array (e.g.,  8052  in  FIGS. 8HH and 8II ). In some embodiments this process is also performed for the representative user interface object (e.g., D 7 - r ′ in  FIGS. 8HH and 8II ). The animation indicates to a user that an action associated with the destination object will be applied to the user interface objects in this array. 
     In some embodiments, in response to detecting the fourth input (e.g., tap gesture  8148  in  FIG. 8GG ) by the user on the array name icon (e.g.,  8132  in  FIG. 8GG ), the device displays ( 1486 ) respective residual images (e.g., shaded images D 1 , D 7 , D 16 , D 18 , D 20 , D 25 , etc. in  FIGS. 8II and 8JJ ) of respective user interface objects at respective initial user interface object positions on the touch screen display (e.g., respective positions of D 1 , D 7 , D 16 , D 18 , D 20 , D 25 , etc. in  FIG. 8GG ). 
     In some embodiments, the device detects ( 1488 ) a fifth input (e.g., a finger tap gesture  8150  ( FIG. 8JJ ), stylus gesture, or mouse click) on a respective residual image (e.g., shaded image D 12  in  FIG. 8JJ ) of a respective user interface object at a respective initial user interface object position on the touch screen display while continuing to detect the third input (e.g., contact  8146  in  FIG. 8JJ ) by the user on the destination object (e.g., “Adorable children” icon  8032  in  FIG. 8JJ ). In response to detecting the fifth input (e.g., tap gesture  8150  in  FIG. 8JJ ) by the user on the respective residual image (e.g., shaded image D 12  in  FIG. 8JJ ) of the respective user interface object at the respective initial user interface object position on the touch screen display, the device undoes the action performed on the respective user interface object and displays the respective user interface object at the respective initial user interface object position. For example, image D 12  will not be labeled “Adorable children” and the residual shaded image of D 12  ( FIG. 8JJ ) is replaced by the original unshaded image of D 12  ( FIG. 8LL ). 
     In some embodiments, in response to detecting the fifth input by the user on the respective residual image of the respective user interface object at the respective initial user interface object position on the touch screen display, the device displays ( 1490 ) an animation of the respective user interface object moving from the destination object back to the respective initial user interface object position. The animation indicates to a user that an action associated with the destination object will not be applied to the respective user interface object. For example  FIG. 8KK  illustrates an exemplary an animation of undoing the prior movement of user interface object D 12  from its initial position to the destination object “Adorable children”  5030  (as shown in  FIGS. 8HH-8II ). In this animation, the device moves user interface object D 12  along a path (e.g.,  8152  in  FIG. 8KK ) from the location at the destination object  5032  back to its original position (e.g., image D 12  in  FIG. 8KK ). In one embodiment, as the user interface object moves along the path, the user interface object is initially displayed as a resized representation so as to match the size of the destination object. An illustrative example of the movement and resizing (e.g., from D 12 ″″ to D 12 ′″ to D 12 ″ to D 12 ′ in  FIG. 8KK  and finally to D 12  in  FIG. 8LL ) of the user interface object is shown in  FIGS. 8KK-8LL . In this example, destination object (e.g.,  8032  in  FIG. 8KK ) is larger along the horizontal dimension (i.e., longer) and smaller along the vertical dimension (i.e., shorter) than the image D 12 . Thus, as illustrated in  FIG. 8KK , the user interface object is initially displayed as a representation of the user interface object (e.g., D 12 ″″) that is stretched horizontally and compressed vertically compared to the original user interface object (e.g., image D 12 ). As the user interface object moves (e.g., from D 12 ″″ to D 12 ′″ to D 12 ″ to D 12 ′ and finally to D 12 ) towards the original position of the image D 12 , the user interface object is compressed horizontally and stretched vertically so that it returns to the dimensions of the original image D 12 . It should be understood that, typically the various resized representations of the user interface object (e.g., D 12 , D 12 ′, D 12 ″, D 12 ′″ and D 12 ″″ shown in  FIGS. 8KK-8LL ) are not simultaneously displayed, but are instead displayed in sequence as the user interface object moves along the path  8152  towards the destination object. In some embodiments, where the user interface object includes an image, the image is distorted as the object is resized. 
     After the device undoes the action performed on the respective user interface object, the respective user interface object is displayed at the initial respective user interface object position (e.g., unshaded image D 12 , as illustrated in  FIG. 8LL ). 
     In some embodiments, the device detects ( 1491 ) an input by the user (e.g., a finger contact  8154  in  FIG. 8MM  or stylus contact) on a user interface object (e.g., image B 26  in  FIG. 8MM ) in an array (e.g., the “Birthday” array  8144  in  FIG. 8MM ) in the plurality of arrays (e.g., including arrays  8144 ,  8052  and  8054  in  FIG. 8MM ). While continuing to detect the input (e.g., contact  8154 ) by the user on the user interface object in the array in the plurality of arrays, for a plurality of destination objects (e.g., array name icons  8006  and  8008 , and label  8032  in sidebar menu  8156 ,  FIG. 8MM ), the device detects a respective input by the user (e.g., a finger or stylus gesture such as a tap gestures  8158 ,  8160 , and  8162  in  FIG. 8MM ) on a respective destination object. In response to each respective input by the user on each respective destination object, the device performs a respective action on the user interface object in the array in the plurality of arrays. The respective action is associated with the respective destination object. In some embodiments, the respective action is a preparatory action, such as preparing to perform an action that will occur upon detecting lift off of the input by the user (e.g., lift off of the finger contact  8154  in  FIG. 8MM ) from the user interface object in the array. Exemplary actions include, without limitation: associating a label with digital content or an electronic document; moving digital content or an electronic document from one event to another event; moving digital content or an electronic document to a folder; and printing/publishing a copy of the digital content or electronic document. 
     For example, in  FIG. 8MM , while continuing to detect finger contact  8154  on image B 26 , the device detects three respective user inputs (e.g., tap gesture  8158 , tap gesture  8160 , and tap gesture  8162 ) associated with respective destination objects (e.g., “Day at the zoo” array name destination object  8006 , “School garden” array name destination object  8008 , and “Adorable children” label destination object  8032 .) In response to the each of the respective inputs, the device performs an action associated with the input. For example, in response to the tap gesture  8158  on the “Day at the zoo” array name  8006 , the device makes image B 26  part of the “Day at the zoo” array  8052  ( FIG. 8NN ). In response to the tap gesture  8160  on the “School garden” array name  8008 , the device makes image B 26  part of the “School garden” array  8054  ( FIG. 8NN ). In response to the tap gesture  8162  on the “Adorable children” label  8032 , the device adds the label “Adorable children” to image B 26 . Thus, the user is able to perform multiple actions on a single user interface object by maintaining one input (e.g., contact  8154  in  FIG. 8MM ) on the single user interface object and simultaneously providing other inputs (e.g., tap gestures  8158 ,  8160 , and  8162  in  FIG. 8MM ) on destination objects (e.g.,  8006 ,  8008  and  8032  in  FIG. 8MM ) in a menu (e.g.,  8156  in  FIG. 8MM ). 
     In some embodiments, in response to each respective input by the user on each respective destination object, the device displays ( 1492 ) a respective animation of the user interface object in the array moving from a respective initial object position into the respective destination object, as described previously with reference to  FIGS. 5E, 5K-5L, 50, 5P and/or 5Q  depending on the type of action performed and the number of objects on which the action is being performed. 
     In some embodiments, the device detects ( 1493 ) an input (e.g., a finger or stylus gesture such as a double tap gesture  8164  in  FIG. 8NN ) by the user on a first user interface object (e.g., image D 29  in  FIG. 8NN ) in a first array (e.g., “Day at the zoo” array  8052  in  FIG. 8NN ) in the plurality of arrays (e.g., including arrays  8144 ,  8052 , and  8054  in  FIG. 8NN ). In response to detecting the input by the user on the first user interface object in the first array in the plurality of arrays, the device displays a first enlarged image (e.g., image D 29 - f  in  FIG. 8OO ) that corresponds to the first user interface object (e.g., a full-screen image of a photograph or a preview image of an electronic document file that corresponds to user interface object D 29  in  FIG. 8NN ). 
     The device detects a horizontal (or substantially horizontal) swipe gesture (e.g., contact  8166  followed by movement  8168  of the contact in a direction that is substantially horizontal in  FIG. 8OO ) by the user on the first enlarged image (e.g., image D 29 - f  in  FIG. 8OO ) that corresponds to the first user interface object (e.g., image D 29  in  FIG. 8NN ). In response to detecting the horizontal (or substantially horizontal) swipe gesture by the user on the first enlarged image that corresponds to the user interface object, the device displays a second enlarged image (e.g., image D 30 - f  in  FIGS. 8PP and 8QQ ) of a second user interface object (e.g., image D 30  in  FIG. 8NN ) in the first array that is adjacent to the first user interface object (e.g., image D 29  in  FIG. 8NN ) in the first array (e.g., “Day at the zoo” array  5052  in  FIG. 8NN ). In some embodiments, the device displays an animation of the first enlarged image (e.g., image D 29 - f  in  FIG. 8OO ) sliding off of the display and being replaced with the second enlarged image (e.g., image D 30 - f  in  FIG. 8PP ), as shown by the progression of Figures from  800  to  8 PP to  8 QQ. In  FIG. 8QQ , the first enlarged image D 29 - f  in  FIGS. 800-8PP  has been completely replaced with the second enlarged image D 30 - f.    
     In some embodiments, the device detects ( 1494 ) a vertical (or substantially vertical) swipe gesture by the user on the first enlarged image (e.g., D 29 - f  in  FIG. 8OO ). In response to detecting the vertical (or substantially vertical) swipe gesture by the user on the first enlarged image, the device scrolls the first enlarged image (not shown). 
     In some embodiments, the device detects ( 1495 ) an input by the user (e.g., a press and hold gesture  8172  in  FIG. 8OO ) on the first enlarged image (e.g., image D 29 - f  in  FIG. 8OO ). In response to detecting the input by the user on the first enlarged image, the device displays the user interface objects in the first array in a cover flow mode of display. For example, in  FIG. 8RR , the enlarged images of the user interface objects in the “Day at the zoo” array  8052  ( FIG. 8NN ) are displayed in cover flow mode. In some embodiments, cover flow mode is a mode where the currently displayed user interface item (e.g., image D 29 - f  in  FIG. 8RR ) is displayed to the user, while skewed representations of adjacent user interface items (e.g., images D 28 - f  and D 30 - f  in  FIG. 8RR ) are displayed on each side of the currently displayed user interface item. Cover flow mode is described in U.S. patent application Ser. No. 11/519,460, “Media Manager With Integrated Browsers,” filed Sep. 11, 2006, which is hereby incorporated by reference herein in its entirety. In response to a swipe gesture (not shown) the device scrolls through the enlarged representations of user interface items in the cover flow view, displaying a current enlarged representation of a user interface item in the center of the display (e.g., image D 29 - f  in  FIG. 8RR ). In some embodiments, the speed of the scrolling is determined based on the speed of the swipe gesture. 
     In some embodiments, the device detects ( 1496 ) an input by the user (e.g., a finger or stylus contact  8174 - 1  in  FIG. 8SS ) on a first user interface object in a first array (e.g., image D 22  in the “Day at the zoo” array  8052  in  FIGS. 8SS-8UU ) of user interface objects (e.g., images D 1 -D 16 , D 18 -D 36 ) in the plurality of arrays (e.g., including arrays  8144  and  8052  in  FIGS. 8SS-8UU ). The device detects movement (e.g., movement  8176  in  FIG. 8SS ) of the input (e.g., contact  8174 ) by the user to a representative user interface object (e.g., representative image D 7 - r  in  FIG. 8SS ) for the first array (e.g.,  8052  in  FIG. 8SS ) of user interface objects. The device detects lift off of the input by the user (e.g., lift off of the finger contact or stylus contact  8174 - 2 ) from the representative user interface object for the first array of user interface objects. In response to detecting lift off of the input by the user from the representative user interface object (e.g., representative image D 7 - r  in  FIG. 8TT ) for the first array of user interface objects, the device makes the first user interface object the representative user interface object (e.g., representative image D 22 - r  in  FIG. 8UU ) for the first array of user interface objects (e.g.,  8052  in  FIG. 8UU ). 
     For example, the device detects a contact  8174 - 1  with image D 22  in  FIG. 8SS , and movement  8176  of the contact (e.g., from  8174 - 1  to  8174 - 2  in  FIG. 8SS ) to the current representative image D 7 - r , which is a representation of user interface object D 7  (e.g., an enlarged version of D 7 ). In the present example, in  FIG. 8TT , the device ceases to detect the contact  8174 - 2  with image D 22 ′ while the contact is located over the current representative image D 7 - r . In some embodiments, when the device detects a release of the contact while it is over the current representative user interface object, the device displays an animation (e.g., image D 22 ′ expanding upwards and to the left, as shown in  FIG. 8TT ) of replacing the current representative user interface object (e.g., representative image D 7 - r  in  FIG. 8TT ) with a new representative user interface object (e.g., representative image D 22 - r  in  FIG. 8UU , which is a representation of image D 22 , such as an enlarged version of image D 22 ). In  FIG. 8UU , the “Day at the zoo” array  8052  is shown with a new representative user interface object, namely representative image D 22 - r.    
       FIGS. 15A-15B  are flow diagrams illustrating a method  1500  of performing an action on user interface objects in an array in accordance with some embodiments. The method  1500  is performed at a computing device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a touch screen display (e.g.,  112  in  FIGS. 8V-8AA ). Some operations in method  1500  may be combined and/or the order of some operations may be changed. 
     As described below, the method  1500  provides an intuitive way to manipulate all user interface objects in an array of user interface objects at a computing device with a touch screen display. The method reduces the cognitive burden on a user when performing the same action on all user interface objects in an array of user interface objects, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to manipulate all user interface objects in an array of user interface objects faster and more efficiently conserves power and increases the time between battery charges. 
     The device simultaneously displays ( 1502 ) on the touch screen display at least one destination object (e.g., an array name icon in a list or menu of such icons) and at least a subset of a plurality of arrays (e.g., arrays  8052  and  8054  in  FIG. 8V ) of user interface objects. Depending on the number of arrays, it may not be possible to simultaneously display every array in the plurality of arrays. In such cases, a subset of the plurality of arrays is displayed and different subsets may be viewed by scrolling the plurality of arrays (e.g., in response to detecting a first finger swipe gesture on the touch screen display, such as a vertical or substantially vertical finger swipe gesture), as described in greater detail above with reference to  FIGS. 8A-8F . 
     The device detects ( 1504 ) activation of a respective array name icon that corresponds to a respective array (e.g., array  8052  in  FIG. 8V ) in the plurality of arrays (e.g., detecting a press and hold finger contact input  8130 - 1  or stylus contact by the user on the “Day at the zoo” array name icon  8132  in  FIG. 8V , which is displayed adjacent to a respective representative user interface object toggle icon). 
     In response to detecting activation of the respective array name icon that corresponds to the respective array, the device displays ( 1506 ) an animation of user interface objects in the respective array moving into a respective representative user interface object (e.g., D 7 - r  in  FIG. 8W ) for the respective array (e.g., the “Day at the zoo” array  8052  in  FIG. 8W ), as described in greater detail above with reference to  FIG. 8W . 
     In some embodiments, in response to detecting activation of the respective array name icon (e.g.,  8132  in  FIG. 8V ) that corresponds to the respective array, the device displays ( 1508 ) residual images (e.g., shaded images D 1 -D 34  in  FIG. 8Y , as described in greater detail above with reference to  FIGS. 8W-8Y ) of user interface objects in the respective array (e.g.,  8052  in  FIG. 8V ). 
     In some embodiments, in response to detecting activation of the respective array name icon that corresponds to the respective array, the device displays ( 1510 ) a counter (e.g.,  8136  in  FIG. 8X ) with the number of user interface objects (e.g., “35”) in the respective array. 
     The device detects ( 1512 ) movement (e.g.,  8132  in  FIG. 8X ) of an input by the user (e.g., a finger contact or stylus contact) from the array name icon (e.g.,  8132  in  FIG. 8X ) to a destination object or an area (e.g.,  8134  in  FIGS. 8X-8Y ) associated with a destination object, as described in greater detail above with reference to  FIG. 8X . 
     The device moves ( 1514 ) the respective representative user interface object (e.g., representative image D 7 - r  in  FIG. 8X ) (and, in some embodiments, a counter  8134  with the number of user interface objects in the respective array) in accordance with the movement of the input by the user across the touch screen display to the destination object or the area associated with a destination object, as described in greater detail above with reference to  FIG. 8X . 
     In some embodiments, in response to detecting movement of the input by the user from the array name icon, the device displays ( 1516 ) a residual image of the respective representative user interface object (e.g., shaded representative image D 7 - r  in  FIG. 8Z ). In some embodiments, the residual image of the respective representative user interface object is ( 1518 ) displayed adjacent to a respective representative user interface object toggle icon (e.g., icon  8138  in  FIG. 8Z ). 
     The device detects ( 1520 ) lift off of the input by the user (e.g., lift off of the finger contact or stylus contact) from the touch screen display at the destination object or at the area (e.g.,  8134  in  FIG. 8Y ) associated with a destination object. 
     In response to detecting lift off of the input by the user from the touch screen display at the destination object or at the area associated with the destination object, the device performs ( 1522 ) an action on the user interface objects in the respective array. The action is associated with the destination object. Exemplary actions include, without limitation: associating a label with digital content or an electronic document; moving digital content or an electronic document from one event to another event; moving digital content or an electronic document to a folder; and printing/publishing a copy of the digital content or electronic document, as described in greater detail above with reference to  FIGS. 8Y-8AA . 
     In some embodiments, the action is ( 1524 ) performed on all of the user interface objects in the respective array (e.g., on all of the images D 1 -D 16 , D 81 -D 36  in array  8052  in  FIG. 8V ). 
     In some embodiments, in response to detecting lift off of the input by the user (e.g., lift off of the finger contact  8130 - 2  in  FIG. 8Y  or stylus contact) from the touch screen display at the destination object or at the area (e.g.,  8134  in  FIG. 8Y ) associated with the destination object, the device displays ( 1526 ) the user interface objects in the respective array (e.g.,  8064  in  FIG. 8AA ) and ceases to display the residual images of user interface objects in the respective array (i.e., the user interface objects replace their residual images in the respective array as shown in  FIG. 8AA ), as described in greater detail above with reference to  FIGS. 8Y-8AA . 
     In some embodiments, in response to detecting lift off of the input by the user (e.g., lift off of the finger contact  8130 - 2  in  FIG. 8Y  or stylus contact) from the touch screen display at the destination object or at the area (e.g.,  8134  in  FIG. 8Y ) associated with the destination object, the device disassociates ( 1528 ) the user interface objects from the respective array and ceases to display the residual images of the user interface objects in the respective array (not shown). 
       FIGS. 16A-16B  are flow diagrams illustrating a method  1600  of using representative user interface objects for respective arrays in a menu category to select an array in accordance with some embodiments. The method  1600  is performed at a computing device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a touch screen display (e.g.,  112  in  FIGS. 8AA-8EE ). Some operations in method  1600  may be combined and/or the order of some operations may be changed. 
     As described below, the method  1600  provides an intuitive way to quickly find and select an array in a plurality of arrays at a computing device with a touch screen display. The method reduces the cognitive burden on a user when trying to find a particular array in a plurality of arrays, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to find a particular array faster and more efficiently conserves power and increases the time between battery charges. 
     The device simultaneously displays ( 1602 ) on the touch screen display at least one destination object (e.g., an array name icon in a list or menu of such icons) and at least a subset of a plurality of arrays of user interface objects. Depending on the number of arrays, it may not be possible to simultaneously display every array in the plurality of arrays. In such cases, a subset of the plurality of arrays is displayed and different subsets may be viewed by scrolling the plurality of arrays (e.g., in response to detecting a first finger swipe gesture on the touch screen display, such as a vertical or substantially vertical finger swipe gesture). 
     The device detects ( 1604 ) activation of a menu category icon (e.g., activation of menu category icon “Events”  8002  for a plurality of array name icons for events  8004 ,  8006 ,  8008 ,  8010 ,  8012 ,  8014 ,  8016 ,  8018 ,  8020 ,  8022 ,  8024  in  FIG. 8AA  by a finger tap gesture  8140 , stylus gesture, or mouse click on the menu category icon). 
     In response to detecting activation of the menu category icon (e.g., “Events”  8002 ), the device displays ( 1606 ) a plurality of representative user interface objects for respective arrays in a menu category that corresponds to the menu category icon, (e.g., representative images B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r  in  FIGS. 8BB-8DD ). 
     In some embodiments, displaying ( 1608 ) the plurality of representative user interface objects includes overlaying the plurality of representative user interface objects (e.g., representative images B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r  in  FIGS. 8BB-8CC ) on user interface objects displayed on the touch screen display immediately prior to detecting activation of the menu category icon, as described in greater detail above with reference to  FIGS. 8BB-8CC . In some embodiments, displaying the plurality of representative user interface objects includes ceasing ( 1610 ) to display user interface objects displayed on the touch screen display immediately prior to detecting activation of the menu category icon. In other words, the user interface objects displayed on the touch screen display immediately prior to detecting activation of the menu category icon are replaced by display of the plurality of representative user interface objects (e.g., representative images B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r  in  FIG. 8DD ) for respective arrays in the menu category that corresponds to the activated menu category icon, as described in greater detail above with reference to  FIG. 8DD . 
     In some embodiments, only the plurality of representative user interface objects for respective arrays in the menu category that corresponds to the activated menu category icon are ( 1612 ) displayed on the touch screen display. For example in  FIGS. 8BB-8CC  the device displays representative user interface objects for a plurality of the “Events” which include arrays of user interface objects. Similarly, if the “Labels” category icon  8026  ( FIG. 8A ) were selected, the device would display a representative user interface object for each of a plurality of the labels (e.g., a representative user interface object for the label “Little Wesley” and a representative user interface object for the label “Adorable children”), where selecting the representative user interface object for a respective label would display an array of user interface objects associated with the respective label. 
     In some embodiments, the device detects ( 1614 ) an input by the user (e.g., a finger tap gesture e.g.,  8142  in  FIG. 8CC , stylus gesture, or mouse click) on a first representative user interface object (e.g., representative image B 1 - r  in  FIG. 8CC ) in the plurality of representative user interface objects for respective arrays in the menu category that corresponds to the activated menu category icon. In response to detecting the input (e.g., tap gesture  8142  in  FIG. 8CC ) by the user on the first representative user interface object, the device ceases to display the plurality of representative user interface objects (e.g., representative image B 1 - r , D 7 - r , S 33 - r , F 8 - r , E 45 - r , V 17 - r , N 5 - r , L 2 - r , R 11 - r , H 27 - r  and P 6 - r  in  FIG. 8CC ) and displays an array of user interface objects that corresponds to the first representative user interface object (e.g., images in the “Birthday” array  8144 , as shown in  FIG. 8EE ). 
     In some embodiments, in response to detecting the input by the user on the first representative user interface object, the device displays ( 1616 ) the first representative user interface object (e.g., representative image B 1 - r  in  FIG. 8EE ) adjacent to the array (e.g., “Birthday” array  8144  in  FIG. 8EE ) of user interface objects that corresponds to the first representative user interface object. 
     In some embodiments, in response to detecting the input by the user on the first representative user interface object, the device displays ( 1618 ) arrays (e.g.,  8052  in  FIG. 8EE ) of user interface objects that do not correspond to the first representative user interface object (e.g., B 1 - r  in  FIG. 8EE ). In other words, the device displays arrays in the plurality of arrays that are adjacent to the array of user interface objects that corresponds to the first representative user interface object. 
     In some embodiments, selected object(s) are moved to a destination object (e.g., an item in sidebar menu) while input by the user (e.g., a finger contact or stylus contact) is on the destination object, as described above with respect to  FIGS. 5A-5Y and 9A-9D, 10A-10B . 
       FIGS. 17A-17B  are flow diagrams illustrating a method  1700  of performing an action on user interface objects in an array in accordance with some embodiments. The method  1700  is performed at a computing device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a touch screen display (e.g.,  112  in  FIGS. 8EE-8MM ). Some operations in method  1700  may be combined and/or the order of some operations may be changed. 
     As described below, the method  1700  provides an intuitive way to perform an action on all or most user interface objects in one array of a plurality of arrays at a computing device with a touch screen display. The method reduces the cognitive burden on a user when performing the same action on all or most user interface objects in an array of user interface objects, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to perform the same action on all or most interface object in an array faster and more efficiently conserves power and increases the time between battery charges. 
     The device simultaneously displays ( 1702 ) on the touch screen display at least one destination object (e.g., an array name icon in a list or menu of such icons) and at least a subset of a plurality of arrays (e.g.,  8144  and  8052  in  FIG. 8FF ) of user interface objects. Depending on the number of arrays, it may not be possible to simultaneously display every array in the plurality of arrays. In such cases, a subset of the plurality of arrays is displayed and different subsets may be viewed by scrolling the plurality of arrays (e.g., in response to detecting a first finger swipe gesture on the touch screen display, such as a vertical or substantially vertical finger swipe gesture), as described in greater detail above with reference to  FIGS. 8A-8F . 
     The device detects ( 1704 ) a first input by a user (e.g., a finger contact  8146  in  FIG. 8FF  or stylus contact) on a destination object (e.g., “Adorable children” label icon  8032  in  FIG. 8FF ). 
     While continuing to detect the first input (e.g., contact  8146  in  FIGS. 8FF-8LL ) by the user on the destination object (e.g., “Adorable children” label icon  8032  in  FIGS. 8FF-8LL ), the device detects ( 1706 ) a second input by the user on an array name icon (e.g., a finger tap gesture  8148  in  FIG. 8GG , stylus gesture, or mouse click by the user on an array name icon  8132  in  FIG. 8GG  displayed adjacent to a respective representative user interface object toggle icon  8138  in  FIG. 8GG ). 
     In response to detecting the second input (e.g., tap gesture  8148  in  FIG. 8GG ) by the user on the array name icon, the device performs ( 1708 ) an action on all user interface objects (e.g., images D 1 -D 16 , D 18 -D 36  in  FIG. 8GG ) in an array (e.g., “Day at the zoo” array  8052  in  FIG. 8GG ) that corresponds to the array name icon (e.g.,  8132  in  FIG. 8GG ). The action is associated with the destination object (e.g., “Adorable children” label icon  8032  in  FIG. 8HH ). In some embodiments, the action is a preparatory action, such as preparing to perform an action that will occur upon detecting lift off of the first input (e.g., lift off of the first finger contact  8416  in  FIG. 8GG  by the user) from the destination object. Exemplary actions include, without limitation: associating a label with digital content or an electronic document; moving digital content or an electronic document from one event to another event; moving digital content or an electronic document to a folder; and printing/publishing a copy of the digital content or electronic document. 
     In some embodiments, in response to detecting the second input (e.g., tap gesture  8148  in  FIG. 8GG ) by the user on the array name icon (e.g.,  8132  in  FIG. 8GG ), the device displays ( 1710 ) an animation of user interface objects in the array (e.g.,  8052  in  FIGS. 8GG-8II ) that correspond to the array name icon moving from respective initial object positions into the destination object (e.g.,  8032  in  FIGS. 8GG-8II ), as described in greater detail above with reference to  FIGS. 8GG-8JJ . The animation indicates to a user that an action associated with the destination object will be applied to the user interface objects in this array. 
     In some embodiments, in response to detecting the second input (e.g., tap gesture  8148  in  FIG. 8GG ) by the user on the array name icon (e.g.,  8132  in  FIG. 8GG ), the device displays ( 1712 ) respective residual images (e.g., shaded images D 1 -D 16  and D 18 -D 36  in  FIG. 8JJ ) of respective user interface objects at respective initial user interface object positions on the touch screen display. 
     In some embodiments, the device detects ( 1714 ) a third input by the user (e.g., a finger tap gesture  8150  ( FIG. 8JJ ), stylus gesture, or mouse click) on a respective residual image (e.g., shaded image D 12  in  FIG. 8JJ ) of a respective user interface object at a respective initial user interface object position on the touch screen display while continuing to detect the first input by the user on the destination object (e.g., contact  8146  on “Adorable children” icon  8032  in  FIG. 8JJ ). In response to detecting the third input (e.g., tap gesture  8150  in  FIG. 8JJ ) by the user on the respective residual image of the respective user interface object (e.g., shaded image D 12  in  FIG. 8JJ ) at the respective initial user interface object position on the touch screen display, the device undoes the action performed on the respective user interface object and displays the respective user interface object at the respective initial user interface object position, as described in greater detail above with reference to  FIGS. 8JJ-8LL . For example, image D 12  will not be labeled “Adorable children” and the residual shaded image of D 12  ( FIG. 8JJ ) is replaced by the original unshaded image of D 12  ( FIG. 8LL ). 
     In some embodiments, in response to detecting the third input (e.g., tap gesture  8150  in  FIG. 8JJ ) by the user on the respective residual image (e.g., shaded image D 12  in  FIG. 8JJ ) of the respective user interface object at the respective initial user interface object position on the touch screen display, the device displays ( 1716 ) an animation of the respective user interface object moving from the destination object back to the respective initial user interface object position, as described in greater detail above with reference to  FIG. 8KK . The animation indicates to a user that an action associated with the destination object will not be applied to the respective user interface object. 
     The steps in the information processing methods described above may be implemented by running one or more functional modules in information processing apparatus such as general purpose processors or application specific chips. These modules, combinations of these modules, and/or their combination with general hardware (e.g., as described above with respect to  FIGS. 1A, 1B and 3 ) are all included within the scope of protection of the invention. 
     The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated.