PATENT DOCUMENT

Publication Number: US-8593422-B2
Application Number: US-201113076392-A
Country: US
Kind Code: B2

Title: Device, method, and graphical user interface for manipulating soft keyboards

Abstract:
A method includes, at an electronic device with a display and a touch-sensitive surface: concurrently displaying a first text entry area and an unsplit keyboard on the display; detecting a gesture on the touch-sensitive surface; and, in response to detecting the gesture on the touch-sensitive surface, replacing the unsplit keyboard with an integrated input area. The integrated input area includes a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion.

Claims:
What is claimed is: 
     
       1. An electronic device, comprising:
 a display; 
 a touch-sensitive surface; 
 one or more processors; 
 memory; and 
 one or more programs, wherein 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 including instructions for:
 concurrently displaying a first text entry area and an integrated input area on the display, the integrated input area including:
 a left portion with a left side of a split keyboard; 
 a right portion with a right side of the split keyboard; and 
 a center portion in between the left portion and the right portion; 
 
 detecting a first contact on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; 
 detecting movement of the first contact along the touch-sensitive surface; 
 in response to detecting the movement of the first contact along the touch-sensitive surface, translating the integrated input area, including the left portion, the right portion, and the center portion, in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; 
 detecting a second contact, distinct from the first contact, on the touch-sensitive surface at a location that corresponds to the split keyboard; 
 detecting movement of the second contact along the touch-sensitive surface; and, 
 in response to detecting the movement of the second contact along the touch-sensitive surface, translating the integrated input area, including the left portion, the right portion, and the center portion, in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
 
 
     
     
       2. The device of  claim 1 , wherein a respective movement threshold is a function of a horizontal distance of a respective contact from a vertical centerline of the integrated input area. 
     
     
       3. The device of  claim 1 , wherein the integrated input area is constrained to vertical translation on the display and the integrated input area translates in accordance with a vertical component of movement of a respective contact when a movement threshold for the respective contact is exceeded. 
     
     
       4. The device of  claim 1 , wherein the left side of the split keyboard and the right side of the split keyboard maintain fixed positions relative to each other within the integrated input area during translation of the integrated input area. 
     
     
       5. A method, comprising:
 at an electronic device with a display and a touch-sensitive surface:
 concurrently displaying a first text entry area and an integrated input area on the display, the integrated input area including:
 a left portion with a left side of a split keyboard; 
 a right portion with a right side of the split keyboard; and 
 a center portion in between the left portion and the right portion; 
 
 detecting a first contact on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; 
 detecting movement of the first contact along the touch-sensitive surface; 
 in response to detecting the movement of the first contact along the touch-sensitive surface, translating the integrated input area, including the left portion, the right portion, and the center portion, in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; 
 detecting a second contact, distinct from the first contact, on the touch-sensitive surface at a location that corresponds to the split keyboard; 
 detecting movement of the second contact along the touch-sensitive surface; and, 
 in response to detecting the movement of the second contact along the touch-sensitive surface, translating the integrated input area, including the left portion, the right portion, and the center portion, in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
 
 
     
     
       6. The method of  claim 5 , wherein a respective movement threshold is a function of a horizontal distance of a respective contact from a vertical centerline of the integrated input area. 
     
     
       7. The method of  claim 5 , wherein the integrated input area is constrained to vertical translation on the display and the integrated input area translates in accordance with a vertical component of movement of a respective contact when a movement threshold for the respective contact is exceeded. 
     
     
       8. The method of  claim 5 , wherein the left side of the split keyboard and the right side of the split keyboard maintain fixed positions relative to each other within the integrated input area during translation of the integrated input area. 
     
     
       9. A graphical user interface on an electronic device with a display, a touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory, the graphical user interface comprising:
 concurrently displayed:
 a first text entry area and an integrated input area, the integrated input area including: 
 a left portion with a left side of a split keyboard; 
 a right portion with a right side of the split keyboard; and 
 a center portion in between the left portion and the right portion; 
 
 wherein: 
 a first contact is detected on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; 
 movement of the first contact is detected along the touch-sensitive surface; 
 in response to detecting movement of the first contact along the touch-sensitive surface, the integrated input area, including the left portion, the right portion, and the center portion, is translated in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; 
 a second contact, distinct from the first contact, is detected on the touch-sensitive surface at a location that corresponds to the split keyboard; 
 movement of the second contact is detected along the touch-sensitive surface; and, 
 in response to detecting movement of the second contact along the touch-sensitive surface, the integrated input area, including the left portion, the right portion, and the center portion, is translated in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
 
     
     
       10. The graphical user interface of  claim 9 , wherein a respective movement threshold is a function of a horizontal distance of a respective contact from a vertical centerline of the integrated input area. 
     
     
       11. The graphical user interface of  claim 9 , wherein the integrated input area is constrained to vertical translation on the display and the integrated input area translates in accordance with a vertical component of movement of a respective contact when a movement threshold for the respective contact is exceeded. 
     
     
       12. The graphical user interface of  claim 9 , wherein the left side of the split keyboard and the right side of the split keyboard maintain fixed positions relative to each other within the integrated input area during translation of the integrated input area. 
     
     
       13. A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by an electronic device with a display and a touch-sensitive surface, cause the device to:
 concurrently display a first text entry area and an integrated input area on the display, the integrated input area including:
 a left portion with a left side of a split keyboard; 
 a right portion with a right side of the split keyboard; and 
 a center portion in between the left portion and the right portion; 
 
 detect a first contact on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; 
 detect movement of the first contact along the touch-sensitive surface; 
 in response to detecting movement of the first contact along the touch-sensitive surface, translate the integrated input area, including the left portion, the right portion, and the center portion, in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; 
 detect a second contact, distinct from the first contact, on the touch-sensitive surface at a location that corresponds to the split keyboard; 
 detect movement of the second contact along the touch-sensitive surface; and, 
 in response to detecting movement of the second contact along the touch-sensitive surface, translate the integrated input area, including the left portion, the right portion, and the center portion, in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
 
     
     
       14. The computer readable storage medium of  claim 13 , wherein a respective movement threshold is a function of a horizontal distance of a respective contact from a vertical centerline of the integrated input area. 
     
     
       15. The computer readable storage medium of  claim 13 , wherein the integrated input area is constrained to vertical translation on the display and the integrated input area translates in accordance with a vertical component of movement of a respective contact when a movement threshold for the respective contact is exceeded. 
     
     
       16. The computer readable storage medium of  claim 13 , wherein the left side of the split keyboard and the right side of the split keyboard maintain fixed positions relative to each other within the integrated input area during translation of the integrated input area.

Description:
RELATED APPLICATIONS 
     This application claims priority to U.S. Provisional Application Ser. No. 61/410,862, filed Nov. 5, 2010, entitled “Device, Method, and Graphical User Interface for Manipulating Soft Keyboard,” which is incorporated herein by reference in its entirety. 
     This application is also related to the following: (1) U.S. application Ser. No. 13/076,389, filed Mar. 30, 2011, entitled “Device, Method, and Graphical User Interface for Manipulating Soft Keyboards,”; (2) U.S. application Ser. No. 13/076,395, filed Mar. 30, 2011, entitled “Device, Method, and Graphical User Interface for Manipulating Soft Keyboards,”; (3) U.S. application Ser. No. 13/076,397, filed Mar. 30, 2011, entitled “Device, Method, and Graphical User Interface for Manipulating Soft Keyboards,”; (4) U.S. application Ser. No. 13/076,399, filed Mar. 30, 2011, entitled “Device, Method, and Graphical User Interface for Manipulating Soft Keyboards,”; (5) U.S. application Ser. No. 13/076,401, filed Mar. 30, 2011, entitled “Device, Method, and Graphical User Interface for Manipulating Soft Keyboards,”; (6) U.S. application Ser. No. 13/076,393, filed Mar. 30, 2011, entitled “Device, Method, and Graphical User Interface for Manipulating Soft Keyboards,”; and (7) U.S. application Ser. No. 13/076,391, filed Mar. 30, 2011, entitled “Device, Method, and Graphical User Interface for Manipulating Soft Keyboards,”; which are incorporated herein by reference in their entirety. 
    
    
     TECHNICAL FIELD 
     This relates generally to electronic devices with touch-sensitive surfaces, including but not limited to electronic devices with touch-sensitive surfaces that control a soft keyboard on a display. 
     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 user interface objects include soft keyboards. Exemplary manipulations include selecting a soft keyboard, adjusting the position and/or size of the soft keyboard, and activating keys in the soft keyboard. A user may need to perform such manipulations on soft keyboards in a file management program (e.g., Finder from Apple Inc. of Cupertino, Calif.), an image management application (e.g., Aperture or iPhoto from Apple Inc. of Cupertino, Calif.), a digital content (e.g., videos and music) management application (e.g., iTunes from Apple Inc. of Cupertino, Calif.), a drawing application, a presentation application (e.g., Keynote from Apple Inc. of Cupertino, Calif.), a word processing application (e.g., Pages from Apple Inc. of Cupertino, Calif.), a website creation application (e.g., iWeb from Apple Inc. of Cupertino, Calif.), a disk authoring application (e.g., iDVD from Apple Inc. of Cupertino, Calif.), or a spreadsheet application (e.g., Numbers from Apple Inc. of Cupertino, Calif.). 
     But existing methods for performing these manipulations are cumbersome and inefficient. For example, two-thumb typing on an unsplit soft keyboard on a tablet-sized portable device while a user is holding the device is tedious and creates a significant cognitive burden on the user. In addition, existing methods take longer than necessary, thereby wasting energy. This latter consideration is particularly important in battery-operated devices. 
     SUMMARY 
     Accordingly, there is a need for electronic devices with faster, more efficient methods and interfaces for manipulating soft keyboards. Such methods and interfaces may complement or replace conventional methods for manipulating soft keyboards. Such methods and interfaces reduce the cognitive burden on a user and produce a more efficient human-machine interface. For battery-operated devices, such methods and interfaces conserve power and increase the time between battery charges. 
     The above deficiencies and other problems associated with user interfaces for electronic 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 non-transitory 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 an electronic device with a display and a touch-sensitive surface. The method includes: concurrently displaying a first text entry area and an unsplit keyboard on the display; detecting a gesture on the touch-sensitive surface; and, in response to detecting the gesture on the touch-sensitive surface, replacing the unsplit keyboard with an integrated input area. The integrated input area includes: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion. 
     In accordance with some embodiments, a method is performed at an electronic device with a display and a touch-sensitive surface. The method includes: displaying a first keyboard on the display, the first keyboard comprising a first plurality of keys; detecting a key activation gesture at a first time at a location on the touch-sensitive surface that corresponds to a location of a first key in the first keyboard; in response to detecting the key activation gesture at the first time, activating the first key; detecting one or more contacts on the touch-sensitive surface at a second time after the first time, the one or more contacts corresponding to a keyboard selection gesture; and, in response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time: replacing the first keyboard with a second keyboard when the second time exceeds a predefined period of time after the first time; and maintaining display of the first keyboard when the second time is less than the predefined period of time after the first time. 
     In accordance with some embodiments, a method is performed at an electronic device with a display and a touch-sensitive surface. The method includes: concurrently displaying a first text entry area and an integrated input area on the display, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; detecting a first contact on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; detecting movement of the first contact along the touch-sensitive surface; in response to detecting movement of the first contact along the touch-sensitive surface, moving the integrated input area in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; detecting a second contact, distinct from the first contact, on the touch-sensitive surface at a location that corresponds to the split keyboard; detecting movement of the second contact along the touch-sensitive surface; and, in response to detecting movement of the second contact along the touch-sensitive surface, moving the integrated input area in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
     In accordance with some embodiments, a method is performed at an electronic device with a display and a touch-sensitive surface. The method includes: concurrently displaying on the display an application content area with a first size, and an input area with a keyboard, the input area being adjacent to and separate from the application content area with the first size, the input area being at a bottom of the display; detecting a gesture on the touch-sensitive surface; in response to detecting the gesture on the touch-sensitive surface: moving the input area away from the bottom of the display over the application content area; and increasing the application content area to a second size larger than the first size. 
     In accordance with some embodiments, a method is performed at an electronic device with a display and a touch-sensitive surface. The method includes: concurrently displaying a text entry area, a left side of a split keyboard, and a right side of a split keyboard, the left side of the split keyboard including a plurality of rows of keys and the right side of the split keyboard including a corresponding plurality of rows of keys; detecting a gesture at a location on the touch-sensitive surface that corresponds to a predefined area adjacent to and to the right of a rightmost key in a respective row of the left side of the split keyboard, wherein the rightmost key in the respective row of the left side of the split keyboard is unique to the left side of the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard, entering in the text entry area a character that corresponds to a leftmost key in a corresponding respective row of the right side of the split keyboard. 
     In accordance with some embodiments, a method is performed at an electronic device with a display and a touch-sensitive surface. The method includes: concurrently displaying a first text entry area and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion with a second text entry area, the center portion in between the left portion and the right portion; detecting a gesture at a location on the touch-sensitive surface that corresponds to a location of a character key in the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the location of the character key in the split keyboard, inputting and concurrently displaying the corresponding character in the first text entry area and the second text entry area on the display. 
     In accordance with some embodiments, a method is performed at an electronic device with a display and a touch-sensitive surface. The method includes: concurrently displaying on the display an application content area that includes one or more text entry areas, and an input area with a keyboard that is displayed over the application content area; detecting a drag gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; in response to detecting the drag gesture, moving the input area on the display in accordance with the drag gesture; detecting a flick gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; and, in response to detecting the flick gesture, moving the input area on the display with inertia in accordance with the flick gesture such that the input area comes to rest at a location adjacent to and just below a text entry area in the application content area. 
     In accordance with some embodiments, a method is performed at an electronic device with a display and a touch-sensitive surface. The method includes: concurrently displaying on the display a first text entry area, and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; detecting a first input on the touch-sensitive surface; in response to detecting the first input, entering a reconfiguration mode for the integrated input area; and, while in the reconfiguration mode for the integrated input area: detecting a second input by a first thumb and/or a second thumb; in response to detecting the second input, adjusting the size of at least one of the left side and the right side of the split keyboard in the integrated input area; detecting a third input; and, in response to detecting the third input, exiting the reconfiguration mode for the integrated input area. 
     In accordance with some embodiments, an electronic device includes a display, a touch-sensitive surface, 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: concurrently displaying a first text entry area and an unsplit keyboard on the display; detecting a gesture on the touch-sensitive surface; and, in response to detecting the gesture on the touch-sensitive surface, replacing the unsplit keyboard with an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion. 
     In accordance with some embodiments, an electronic device includes a display, a touch-sensitive surface, 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: displaying a first keyboard on the display, the first keyboard comprising a first plurality of keys; detecting a key activation gesture at a first time at a location on the touch-sensitive surface that corresponds to a location of a first key in the first keyboard; in response to detecting the key activation gesture at the first time, activating the first key; detecting one or more contacts on the touch-sensitive surface at a second time after the first time, the one or more contacts corresponding to a keyboard selection gesture; and, in response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time: replacing the first keyboard with a second keyboard when the second time exceeds a predefined period of time after the first time; and maintaining display of the first keyboard when the second time is less than the predefined period of time after the first time. 
     In accordance with some embodiments, an electronic device includes a display, a touch-sensitive surface, 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: concurrently displaying a first text entry area and an integrated input area on the display, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; detecting a first contact on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; detecting movement of the first contact along the touch-sensitive surface; in response to detecting movement of the first contact along the touch-sensitive surface, moving the integrated input area in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; detecting a second contact, distinct from the first contact, on the touch-sensitive surface at a location that corresponds to the split keyboard; detecting movement of the second contact along the touch-sensitive surface; and, in response to detecting movement of the second contact along the touch-sensitive surface, moving the integrated input area in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
     In accordance with some embodiments, an electronic device includes a display, a touch-sensitive surface, 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: concurrently displaying on the display an application content area with a first size, and an input area with a keyboard, the input area being adjacent to and separate from the application content area with the first size, the input area being at a bottom of the display; detecting a gesture on the touch-sensitive surface; in response to detecting the gesture on the touch-sensitive surface: moving the input area away from the bottom of the display over the application content area; and increasing the application content area to a second size larger than the first size. 
     In accordance with some embodiments, an electronic device includes a display, a touch-sensitive surface, 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: concurrently displaying a text entry area, a left side of a split keyboard, and a right side of a split keyboard, the left side of the split keyboard including a plurality of rows of keys and the right side of the split keyboard including a corresponding plurality of rows of keys; detecting a gesture at a location on the touch-sensitive surface that corresponds to a predefined area adjacent to and to the right of a rightmost key in a respective row of the left side of the split keyboard, wherein the rightmost key in the respective row of the left side of the split keyboard is unique to the left side of the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard, entering in the text entry area a character that corresponds to a leftmost key in a corresponding respective row of the right side of the split keyboard. 
     In accordance with some embodiments, an electronic device includes a display, a touch-sensitive surface, 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: concurrently displaying a first text entry area and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion with a second text entry area, the center portion in between the left portion and the right portion; detecting a gesture at a location on the touch-sensitive surface that corresponds to a location of a character key in the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the location of the character key in the split keyboard, inputting and concurrently displaying the corresponding character in the first text entry area and the second text entry area on the display. 
     In accordance with some embodiments, an electronic device includes a display, a touch-sensitive surface, 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: concurrently displaying on the display an application content area that includes one or more text entry areas, and an input area with a keyboard that is displayed over the application content area; detecting a drag gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; in response to detecting the drag gesture, moving the input area on the display in accordance with the drag gesture; detecting a flick gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; and, in response to detecting the flick gesture, moving the input area on the display with inertia in accordance with the flick gesture such that the input area comes to rest at a location adjacent to and just below a text entry area in the application content area. 
     In accordance with some embodiments, an electronic device includes a display, a touch-sensitive surface, 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: concurrently displaying on the display a first text entry area, and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; detecting a first input on the touch-sensitive surface; in response to detecting the first input, entering a reconfiguration mode for the integrated input area; and, while in the reconfiguration mode for the integrated input area: detecting a second input by a first thumb and/or a second thumb; in response to detecting the second input, adjusting the size of at least one of the left side and the right side of the split keyboard in the integrated input area; detecting a third input; and, in response to detecting the third input, exiting the reconfiguration mode for the integrated input area. 
     In accordance with some embodiments, a graphical user interface on an electronic device with a display, a touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory includes concurrently displayed: a first text entry area and an unsplit keyboard; wherein: in response to detection of a gesture on the touch-sensitive surface, the unsplit keyboard is replaced with an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion. 
     In accordance with some embodiments, a graphical user interface on an electronic device with a display, a touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory includes a first keyboard, the first keyboard comprising a first plurality of keys; wherein: a key activation gesture is detected at a first time at a location on the touch-sensitive surface that corresponds to a location of a first key in the first keyboard; in response to detecting the key activation gesture at the first time, the first key is activated; one or more contacts are detected on the touch-sensitive surface at a second time after the first time, the one or more contacts corresponding to a keyboard selection gesture; and, in response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time: the first keyboard is replaced with a second keyboard when the second time exceeds a predefined period of time after the first time; and display of the first keyboard is maintained when the second time is less than the predefined period of time after the first time. 
     In accordance with some embodiments, a graphical user interface on an electronic device with a display, a touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory includes concurrently displayed: a first text entry area and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; wherein: a first contact is detected on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; movement of the first contact is detected along the touch-sensitive surface; in response to detecting movement of the first contact along the touch-sensitive surface, the integrated input area is moved in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; a second contact, distinct from the first contact, is detected on the touch-sensitive surface at a location that corresponds to the split keyboard; movement of the second contact is detected along the touch-sensitive surface; and, in response to detecting movement of the second contact along the touch-sensitive surface, the integrated input area is moved in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
     In accordance with some embodiments, a graphical user interface on an electronic device with a display, a touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory includes concurrently displayed: an application content area with a first size, and an input area with a keyboard, the input area being adjacent to and separate from the application content area with the first size, the input area being at a bottom of the display; wherein: a gesture is detected on the touch-sensitive surface; in response to detecting the gesture on the touch-sensitive surface: the input area is moved away from the bottom of the display over the application content area; and the application content area is increased to a second size larger than the first size. 
     In accordance with some embodiments, a graphical user interface on an electronic device with a display, a touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory includes concurrently displayed: a text entry area, a left side of a split keyboard, and a right side of a split keyboard, the left side of the split keyboard including a plurality of rows of keys and the right side of the split keyboard including a corresponding plurality of rows of keys; wherein: a gesture is detected at a location on the touch-sensitive surface that corresponds to a predefined area adjacent to and to the right of a rightmost key in a respective row of the left side of the split keyboard, wherein the rightmost key in the respective row of the left side of the split keyboard is unique to the left side of the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard, a character that corresponds to a leftmost key in a corresponding respective row of the right side of the split keyboard is entered in the text entry area. 
     In accordance with some embodiments, a graphical user interface on an electronic device with a display, a touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory includes concurrently displayed: a first text entry area, and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion with a second text entry area, the center portion in between the left portion and the right portion; wherein: a gesture is detected at a location on the touch-sensitive surface that corresponds to a location of a character key in the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the location of the character key in the split keyboard, the corresponding character is inputted and concurrently displayed in the first text entry area and the second text entry area on the display. 
     In accordance with some embodiments, a graphical user interface on an electronic device with a display, a touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory includes concurrently displayed: an application content area that includes one or more text entry areas, and an input area with a keyboard that is displayed over the application content area; wherein: a drag gesture is detected on the touch-sensitive surface at a location that corresponds to the input area on the display; in response to detecting the drag gesture, the input area is moved on the display in accordance with the drag gesture; a flick gesture is detected on the touch-sensitive surface at a location that corresponds to the input area on the display; and, in response to detecting the flick gesture, the input area is moved on the display with inertia in accordance with the flick gesture such that the input area comes to rest at a location adjacent to and just below a text entry area in the application content area. 
     In accordance with some embodiments, a graphical user interface on an electronic device with a display, a touch-sensitive surface, a memory, and one or more processors to execute one or more programs stored in the memory includes concurrently displayed: a first text entry area, and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; wherein: a first input is detected on the touch-sensitive surface; in response to detecting the first input, a reconfiguration mode for the integrated input area is entered; and, while in the reconfiguration mode for the integrated input area: a second input by a first thumb and/or a second thumb is detected; in response to detecting the second input, the size of at least one of the left side and the right side of the split keyboard in the integrated input area is adjusted; a third input is detected; and, in response to detecting the third input, the reconfiguration mode for the integrated input area is exited. 
     In accordance with some embodiments, a non-transitory computer readable storage medium has stored therein instructions which when executed by an electronic device with a display and a touch-sensitive surface, cause the device to: concurrently display a first text entry area and an unsplit keyboard on the display; detect a gesture on the touch-sensitive surface; and, in response to detecting the gesture on the touch-sensitive surface, replace the unsplit keyboard with an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion. 
     In accordance with some embodiments, a non-transitory computer readable storage medium has stored therein instructions which when executed by an electronic device with a display and a touch-sensitive surface, cause the device to: display a first keyboard on the display, the first keyboard comprising a first plurality of keys; detect a key activation gesture at a first time at a location on the touch-sensitive surface that corresponds to a location of a first key in the first keyboard; in response to detecting the key activation gesture at the first time, activate the first key; detect one or more contacts on the touch-sensitive surface at a second time after the first time, the one or more contacts corresponding to a keyboard selection gesture; and, in response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time: replace the first keyboard with a second keyboard when the second time exceeds a predefined period of time after the first time; and maintain display of the first keyboard when the second time is less than the predefined period of time after the first time. 
     In accordance with some embodiments, a non-transitory computer readable storage medium has stored therein instructions which when executed by an electronic device with a display and a touch-sensitive surface, cause the device to: concurrently display a first text entry area and an integrated input area on the display, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; detect a first contact on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; detect movement of the first contact along the touch-sensitive surface; in response to detecting movement of the first contact along the touch-sensitive surface, move the integrated input area in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; detect a second contact, distinct from the first contact, on the touch-sensitive surface at a location that corresponds to the split keyboard; detect movement of the second contact along the touch-sensitive surface; and, in response to detecting movement of the second contact along the touch-sensitive surface, move the integrated input area in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
     In accordance with some embodiments, a non-transitory computer readable storage medium has stored therein instructions which when executed by an electronic device with a display and a touch-sensitive surface, cause the device to: concurrently display on the display an application content area with a first size, and an input area with a keyboard, the input area being adjacent to and separate from the application content area with the first size, the input area being at a bottom of the display; detect a gesture on the touch-sensitive surface; in response to detecting the gesture on the touch-sensitive surface: move the input area away from the bottom of the display over the application content area; and increase the application content area to a second size larger than the first size. 
     In accordance with some embodiments, a non-transitory computer readable storage medium has stored therein instructions which when executed by an electronic device with a display and a touch-sensitive surface, cause the device to: concurrently display a text entry area, a left side of a split keyboard, and a right side of a split keyboard, the left side of the split keyboard including a plurality of rows of keys and the right side of the split keyboard including a corresponding plurality of rows of keys; detect a gesture at a location on the touch-sensitive surface that corresponds to a predefined area adjacent to and to the right of a rightmost key in a respective row of the left side of the split keyboard, wherein the rightmost key in the respective row of the left side of the split keyboard is unique to the left side of the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard, enter in the text entry area a character that corresponds to a leftmost key in a corresponding respective row of the right side of the split keyboard. 
     In accordance with some embodiments, a non-transitory computer readable storage medium has stored therein instructions which when executed by an electronic device with a display and a touch-sensitive surface, cause the device to: concurrently display a first text entry area and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion with a second text entry area, the center portion in between the left portion and the right portion; detect a gesture at a location on the touch-sensitive surface that corresponds to a location of a character key in the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the location of the character key in the split keyboard, input and concurrently display the corresponding character in the first text entry area and the second text entry area on the display. 
     In accordance with some embodiments, a non-transitory computer readable storage medium has stored therein instructions which when executed by an electronic device with a display and a touch-sensitive surface, cause the device to: concurrently display on the display an application content area that includes one or more text entry areas, and an input area with a keyboard that is displayed over the application content area; detect a drag gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; in response to detecting the drag gesture, move the input area on the display in accordance with the drag gesture; detect a flick gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; and, in response to detecting the flick gesture, move the input area on the display with inertia in accordance with the flick gesture such that the input area comes to rest at a location adjacent to and just below a text entry area in the application content area. 
     In accordance with some embodiments, a non-transitory computer readable storage medium has stored therein instructions which when executed by an electronic device with a display and a touch-sensitive surface, cause the device to: concurrently display on the display a first text entry area, and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; detect a first input on the touch-sensitive surface; in response to detecting the first input, enter a reconfiguration mode for the integrated input area; and, while in the reconfiguration mode for the integrated input area: detect a second input by a first thumb and/or a second thumb; in response to detecting the second input, adjust the size of at least one of the left side and the right side of the split keyboard in the integrated input area; detect a third input; and, in response to detecting the third input, exit the reconfiguration mode for the integrated input area. 
     In accordance with some embodiments, an electronic device includes: a display; a touch-sensitive surface; means for concurrently displaying a first text entry area and an unsplit keyboard on the display; means for detecting a gesture on the touch-sensitive surface; and, means for, in response to detecting the gesture on the touch-sensitive surface, replacing the unsplit keyboard with an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion. 
     In accordance with some embodiments, an electronic device includes: a display; a touch-sensitive surface; means for displaying a first keyboard on the display, the first keyboard comprising a first plurality of keys; means for detecting a key activation gesture at a first time at a location on the touch-sensitive surface that corresponds to a location of a first key in the first keyboard; means for, in response to detecting the key activation gesture at the first time, activating the first key; means for detecting one or more contacts on the touch-sensitive surface at a second time after the first time, the one or more contacts corresponding to a keyboard selection gesture; and, in response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time: means for replacing the first keyboard with a second keyboard when the second time exceeds a predefined period of time after the first time; and means for maintaining display of the first keyboard when the second time is less than the predefined period of time after the first time. 
     In accordance with some embodiments, an electronic device includes: a display; a touch-sensitive surface; means for concurrently displaying a first text entry area and an integrated input area on the display, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; means for detecting a first contact on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; means for detecting movement of the first contact along the touch-sensitive surface; means for, in response to detecting movement of the first contact along the touch-sensitive surface, moving the integrated input area in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; means for detecting a second contact, distinct from the first contact, on the touch-sensitive surface at a location that corresponds to the split keyboard; means for detecting movement of the second contact along the touch-sensitive surface; and, means for, in response to detecting movement of the second contact along the touch-sensitive surface, moving the integrated input area in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
     In accordance with some embodiments, an electronic device includes: a display; a touch-sensitive surface; means for concurrently displaying on the display an application content area with a first size, and an input area with a keyboard, the input area being adjacent to and separate from the application content area with the first size, the input area being at a bottom of the display; means for detecting a gesture on the touch-sensitive surface; in response to detecting the gesture on the touch-sensitive surface: means for moving the input area away from the bottom of the display over the application content area; and means for increasing the application content area to a second size larger than the first size. 
     In accordance with some embodiments, an electronic device includes: a display; a touch-sensitive surface; means for concurrently displaying a text entry area, a left side of a split keyboard, and a right side of a split keyboard, the left side of the split keyboard including a plurality of rows of keys and the right side of the split keyboard including a corresponding plurality of rows of keys; means for detecting a gesture at a location on the touch-sensitive surface that corresponds to a predefined area adjacent to and to the right of a rightmost key in a respective row of the left side of the split keyboard, wherein the rightmost key in the respective row of the left side of the split keyboard is unique to the left side of the split keyboard; and, means for, in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard, entering in the text entry area a character that corresponds to a leftmost key in a corresponding respective row of the right side of the split keyboard. 
     In accordance with some embodiments, an electronic device includes: a display; a touch-sensitive surface; means for concurrently displaying a first text entry area and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion with a second text entry area, the center portion in between the left portion and the right portion; means for detecting a gesture at a location on the touch-sensitive surface that corresponds to a location of a character key in the split keyboard; and, means for in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the location of the character key in the split keyboard, inputting and concurrently displaying the corresponding character in the first text entry area and the second text entry area on the display. 
     In accordance with some embodiments, an electronic device includes: a display; a touch-sensitive surface; means for concurrently displaying on the display an application content area that includes one or more text entry areas, and an input area with a keyboard that is displayed over the application content area; means for detecting a drag gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; means for, in response to detecting the drag gesture, moving the input area on the display in accordance with the drag gesture; means for detecting a flick gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; and, means for, in response to detecting the flick gesture, moving the input area on the display with inertia in accordance with the flick gesture such that the input area comes to rest at a location adjacent to and just below a text entry area in the application content area. 
     In accordance with some embodiments, an electronic device includes: a display; a touch-sensitive surface; means for concurrently displaying on the display a first text entry area, and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; means for detecting a first input on the touch-sensitive surface; means for in response to detecting the first input, entering a reconfiguration mode for the integrated input area; and, while in the reconfiguration mode for the integrated input area: means for detecting a second input by a first thumb and/or a second thumb; means for, in response to detecting the second input, adjusting the size of at least one of the left side and the right side of the split keyboard in the integrated input area; means for detecting a third input; and, means for, in response to detecting the third input, exiting the reconfiguration mode for the integrated input area. 
     In accordance with some embodiments, an information processing apparatus for use in an electronic device with a display and a touch-sensitive surface includes: means for concurrently displaying a first text entry area and an unsplit keyboard on the display; means for detecting a gesture on the touch-sensitive surface; and, means for, in response to detecting the gesture on the touch-sensitive surface, replacing the unsplit keyboard with an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion. 
     In accordance with some embodiments, an information processing apparatus for use in an electronic device with a display and a touch-sensitive surface includes: means for displaying a first keyboard on the display, the first keyboard comprising a first plurality of keys; means for detecting a key activation gesture at a first time at a location on the touch-sensitive surface that corresponds to a location of a first key in the first keyboard; means for in response to detecting the key activation gesture at the first time, activating the first key; means for detecting one or more contacts on the touch-sensitive surface at a second time after the first time, the one or more contacts corresponding to a keyboard selection gesture; and, in response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time: means for replacing the first keyboard with a second keyboard when the second time exceeds a predefined period of time after the first time; and means for maintaining display of the first keyboard when the second time is less than the predefined period of time after the first time. 
     In accordance with some embodiments, an information processing apparatus for use in an electronic device with a display and a touch-sensitive surface includes: means for concurrently displaying a first text entry area and an integrated input area on the display, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; means for detecting a first contact on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area; means for detecting movement of the first contact along the touch-sensitive surface; means for, in response to detecting movement of the first contact along the touch-sensitive surface, moving the integrated input area in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; means for detecting a second contact, distinct from the first contact, on the touch-sensitive surface at a location that corresponds to the split keyboard; means for detecting movement of the second contact along the touch-sensitive surface; and, means for, in response to detecting movement of the second contact along the touch-sensitive surface, moving the integrated input area in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
     In accordance with some embodiments, an information processing apparatus for use in an electronic device with a display and a touch-sensitive surface includes: means for concurrently displaying on the display an application content area with a first size, and an input area with a keyboard, the input area being adjacent to and separate from the application content area with the first size, the input area being at a bottom of the display; means for detecting a gesture on the touch-sensitive surface; in response to detecting the gesture on the touch-sensitive surface: means for moving the input area away from the bottom of the display over the application content area; and means for increasing the application content area to a second size larger than the first size. 
     In accordance with some embodiments, an information processing apparatus for use in an electronic device with a display and a touch-sensitive surface includes: means for concurrently displaying a text entry area, a left side of a split keyboard, and a right side of a split keyboard, the left side of the split keyboard including a plurality of rows of keys and the right side of the split keyboard including a corresponding plurality of rows of keys; means for detecting a gesture at a location on the touch-sensitive surface that corresponds to a predefined area adjacent to and to the right of a rightmost key in a respective row of the left side of the split keyboard, wherein the rightmost key in the respective row of the left side of the split keyboard is unique to the left side of the split keyboard; and, means for in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard, entering in the text entry area a character that corresponds to a leftmost key in a corresponding respective row of the right side of the split keyboard. 
     In accordance with some embodiments, an information processing apparatus for use in an electronic device with a display and a touch-sensitive surface includes: means for concurrently displaying a first text entry area and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion with a second text entry area, the center portion in between the left portion and the right portion; means for detecting a gesture at a location on the touch-sensitive surface that corresponds to a location of a character key in the split keyboard; and, means for in response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the location of the character key in the split keyboard, inputting and concurrently displaying the corresponding character in the first text entry area and the second text entry area on the display. 
     In accordance with some embodiments, an information processing apparatus for use in an electronic device with a display and a touch-sensitive surface includes: means for concurrently displaying on the display an application content area that includes one or more text entry areas, and an input area with a keyboard that is displayed over the application content area; means for detecting a drag gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; means for, in response to detecting the drag gesture, moving the input area on the display in accordance with the drag gesture; means for detecting a flick gesture on the touch-sensitive surface at a location that corresponds to the input area on the display; and, means for, in response to detecting the flick gesture, moving the input area on the display with inertia in accordance with the flick gesture such that the input area comes to rest at a location adjacent to and just below a text entry area in the application content area. 
     In accordance with some embodiments, an information processing apparatus for use in an electronic device with a display and a touch-sensitive surface includes: means for concurrently displaying on the display a first text entry area, and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard; a right portion with a right side of the split keyboard; and a center portion in between the left portion and the right portion; means for detecting a first input on the touch-sensitive surface; means for, in response to detecting the first input, entering a reconfiguration mode for the integrated input area; and, while in the reconfiguration mode for the integrated input area: means for detecting a second input by a first thumb and/or a second thumb; means for, in response to detecting the second input, adjusting the size of at least one of the left side and the right side of the split keyboard in the integrated input area; means for detecting a third input; and, means for, in response to detecting the third input, exiting the reconfiguration mode for the integrated input area. 
     In accordance with some embodiments, an electronic device includes a display unit configured to concurrently display a first text entry area and an unsplit keyboard, a touch-sensitive surface unit configured to receive user gestures, and a processing unit coupled to the display unit and the touch-sensitive surface unit. The processing unit is configured to detect a gesture on the touch-sensitive surface unit, and, in response to detecting the gesture on the touch-sensitive surface unit, replace the unsplit keyboard with an integrated input area. The integrated input area includes a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion. 
     In accordance with some embodiments, an electronic device includes a display unit configured to display a first keyboard, the first keyboard including a first plurality of keys; a touch-sensitive surface unit configured to receive user gestures; and a processing unit coupled to the display unit and the touch-sensitive surface unit. The processing unit is configured to detect a key activation gesture at a first time at a location on the touch-sensitive surface unit that corresponds to a location of a first key in the first keyboard; in response to detecting the key activation gesture at the first time, activate the first key; detect one or more contacts on the touch-sensitive surface unit at a second time after the first time, the one or more contacts corresponding to a keyboard selection gesture; and in response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time: replace the first keyboard with a second keyboard on the display unit when the second time exceeds a predefined period of time after the first time; and maintain display of the first keyboard on the display unit when the second time is less than the predefined period of time after the first time. 
     In accordance with some embodiments, an electronic device includes a display unit configured to concurrently display a first text entry area and an integrated input area, the integrated input area including a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion; a touch-sensitive surface unit configured to receive user contacts and movements of the user contacts; and a processing unit coupled to the display unit and the touch-sensitive surface unit. The processing unit is configured to detect a first contact on the touch-sensitive surface unit at a location that corresponds to the center portion of the integrated input area; detect movement of the first contact along the touch-sensitive surface unit; in response to detecting the movement of the first contact along the touch-sensitive surface unit, move the integrated input area on the display unit in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold; detect a second contact, distinct from the first contact, on the touch-sensitive surface unit at a location that corresponds to the split keyboard; detect movement of the second contact along the touch-sensitive surface unit; and, in response to detecting the movement of the second contact along the touch-sensitive surface unit, move the integrated input area on the display unit in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. 
     In accordance with some embodiments, an electronic device includes a display unit configured to concurrently display an application content area with a first size, and an input area with a keyboard, the input area being adjacent to and separate from the application content area with the first size, the input area being at a bottom of the display unit; a touch-sensitive surface unit configured to receive user gestures; and a processing unit coupled to the display unit and the touch-sensitive surface unit. The processing unit is configured to detect a gesture on the touch-sensitive surface unit; and, in response to detecting the gesture on the touch-sensitive surface unit: move the input area away from the bottom of the display unit over the application content area, and increase a size of the application content area to a second size larger than the first size. 
     In accordance with some embodiments, an electronic device includes a display unit configured to concurrently display a text entry area, a left side of a split keyboard, and a right side of a split keyboard, the left side of the split keyboard including a plurality of rows of keys and the right side of the split keyboard including a corresponding plurality of rows of keys; a touch-sensitive surface unit configured to receive user gestures; and a processing unit coupled to the display unit and the touch-sensitive surface unit. The processing unit is configured to detect a gesture at a location on the touch-sensitive surface unit that corresponds to a predefined area adjacent to and to the right of a rightmost key in a respective row of the left side of the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface unit that corresponds to the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard, enter in the text entry area a character that corresponds to a leftmost key in a corresponding respective row of the right side of the split keyboard. 
     In accordance with some embodiments, an electronic device includes a display unit configured to concurrently display a first text entry area and an integrated input area, the integrated input area including a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion with a second text entry area, the center portion in between the left portion and the right portion; a touch-sensitive surface unit configured to receive user gestures; and a processing unit coupled to the display unit and the touch-sensitive surface unit. The processing unit is configured to: detect a gesture at a location on the touch-sensitive surface unit that corresponds to a location of a character key in the split keyboard; and, in response to detecting the gesture at the location on the touch-sensitive surface unit that corresponds to the location of the character key in the split keyboard, input and enable concurrent display of the corresponding character in the first text entry area and the second text entry area on the display unit. 
     In accordance with some embodiments, an electronic device includes a display unit configured to concurrently display an application content area that includes one or more text entry areas, and an input area with a keyboard that is displayed over the application content area; a touch-sensitive surface unit configured to receive user gestures; and a processing unit coupled to the display unit and the touch-sensitive surface unit. The processing unit is configured to: detect a drag gesture on the touch-sensitive surface unit at a location that corresponds to the input area on the display unit; in response to detecting the drag gesture, move the input area on the display unit in accordance with the drag gesture; detect a flick gesture on the touch-sensitive surface unit at a location that corresponds to the input area on the display unit; and, in response to detecting the flick gesture, move the input area on the display unit with inertia in accordance with the flick gesture such that the input area comes to rest at a location adjacent to and just below a text entry area in the application content area. 
     In accordance with some embodiments, an electronic device includes a display unit configured to concurrently display a first text entry area, and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion; a touch-sensitive surface unit configured to receive user inputs; a processing unit coupled to the display unit and the touch-sensitive surface unit. The processing unit is configured to: detect a first input on the touch-sensitive surface unit; in response to detecting the first input, enter a reconfiguration mode for the integrated input area; while in the reconfiguration mode for the integrated input area: detect a second input by a first thumb and/or a second thumb; in response to detecting the second input, adjust the size of at least one of the left side and the right side of the split keyboard in the integrated input area; and detect a third input; and, in response to detecting the third input, exit the reconfiguration mode for the integrated input area. 
     Thus, electronic devices with displays and touch-sensitive surfaces are provided with faster, more efficient methods and interfaces for manipulating soft keyboards, thereby increasing the effectiveness, efficiency, and user satisfaction with such devices. Such methods and interfaces may complement or replace conventional methods for manipulating soft keyboards. 
    
    
     
       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. 
         FIG. 1A  is a block diagram illustrating a portable multifunction device with a touch-sensitive display in accordance with some embodiments. 
         FIG. 1B  is a block diagram illustrating exemplary components for event handling 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 multifunction device with a display and a touch-sensitive surface in accordance with some embodiments. 
         FIG. 4A  illustrates an exemplary user interface for a menu of applications on a portable multifunction device in accordance with some embodiments. 
         FIG. 4B  illustrates an exemplary user interface for a multifunction device with a touch-sensitive surface that is separate from the display in accordance with some embodiments. 
       FIGS.  5 A- 5 NNN illustrate exemplary user interfaces for manipulating soft keyboards in accordance with some embodiments. 
         FIGS. 6A-6B  are flow diagrams illustrating a method of replacing an unsplit keyboard with an integrated input area in accordance with some embodiments. 
         FIGS. 7A-7B  are flow diagrams illustrating a method of responding to a keyboard selection gesture in accordance with some embodiments. 
         FIGS. 8A-8B  are flow diagrams illustrating a method of moving an integrated input area in accordance with some embodiments. 
         FIG. 9  is a flow diagram illustrating a method of moving an input area and adjusting the size of an application content area in accordance with some embodiments. 
         FIGS. 10A-10B  are flow diagrams illustrating a method of entering characters with a split soft keyboard in accordance with some embodiments. 
         FIGS. 11A-11D  are flow diagrams illustrating a method of using a center portion of an integrated input area in accordance with some embodiments. 
         FIGS. 12A-12B  are flow diagrams illustrating a method of moving an input area that includes a keyboard over an application content area in accordance with some embodiments. 
         FIGS. 13A-13B  are flow diagrams illustrating a method of reconfiguring an integrated input area in accordance with some embodiments. 
         FIG. 14  is a functional block diagram of an electronic device in accordance with some embodiments. 
         FIG. 15  is a functional block diagram of an electronic device in accordance with some embodiments. 
         FIG. 16  is a functional block diagram of an electronic device in accordance with some embodiments. 
         FIG. 17  is a functional block diagram of an electronic device in accordance with some embodiments. 
         FIG. 18  is a functional block diagram of an electronic device in accordance with some embodiments. 
         FIG. 19  is a functional block diagram of an electronic device in accordance with some embodiments. 
         FIG. 20  is a functional block diagram of an electronic device in accordance with some embodiments. 
         FIG. 21  is a functional block diagram of an electronic device in accordance with some embodiments. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Many electronic devices have graphical user interfaces with soft keyboards for character entry. On a relatively large portable device, such as a tablet computer, typing on an unsplit soft keyboard may be fine in certain situations, such as when the computer is resting on a solid surface, but problematic in other situations. For example, unsplit keyboards are not convenient for typing when both hands are holding onto the device. Split soft keyboards may be better in these situations. But the use of split keyboards for two-thumb typing when both hands are holding onto the device raises new issues that have not been recognized and/or properly addressed, such as:
         Easily converting between an unsplit keyboard and an integrated input area that includes a split keyboard;   Preventing accidentally changing soft keyboards while typing (e.g., from an unsplit keyboard to an integrated input area with a split keyboard, or vice versa);   Moving an integrated input area when desired, but preventing accidental movement of the integrated input area when a user contact moves during typing with the split keyboard;   Moving an input area and adjusting the size of an application content area to display more of the application;   More efficiently entering characters during two-thumb typing with a split soft keyboard;   Using the center portion of an integrated input area to make character entry faster and more efficient during two-thumb typing;   Moving an input area that includes a keyboard over an application content area so that the input area is just below a text entry area in the application; and   Easily customizing a split keyboard in an integrated input area to the size of the user&#39;s thumbs.       

     The embodiments described below address these issues and related issues. 
     Below,  FIGS. 1A-1B ,  2 ,  3 , and  14 - 21  provide a description of exemplary devices.  FIGS. 4A-4B  and  5 A- 5 NNN illustrate exemplary user interfaces for manipulating soft keyboards.  FIGS. 6A-6B ,  7 A- 7 B,  8 A- 8 B,  9 ,  10 A- 10 B,  11 A- 11 D,  12 A- 12 B,  13 A- 13 B are flow diagrams illustrating methods of manipulating soft keyboards. The user interfaces in FIGS.  5 A- 5 NNN are used to illustrate the processes in  FIGS. 6A-6B ,  7 A- 7 B,  8 A- 8 B,  9 ,  10 A- 10 B,  11 A- 11 D,  12 A- 12 B,  13 A- 13 B. 
     Exemplary Devices 
     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 electronic devices, user interfaces for such devices, and associated processes for using such devices are described. In some embodiments, the 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®, iPod Touch®, and iPad® devices from Apple Inc. of Cupertino, Calif. Other portable electronic devices, such as laptops or tablet computers with touch-sensitive surfaces (e.g., touch screen displays and/or touch pads), may also be used. It should also be understood that, in some embodiments, the device is not a portable communications device, but is a desktop computer with a touch-sensitive surface (e.g., a touch screen display and/or a touch pad). 
     In the discussion that follows, an electronic device that includes a display and a touch-sensitive surface is described. It should be understood, however, that the electronic device may include one or more other physical user-interface devices, such as a physical keyboard, a mouse and/or a joystick. 
     The device typically 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 to the user. 
     Attention is now directed toward embodiments of portable devices with touch-sensitive displays.  FIG. 1A  is a block diagram illustrating portable multifunction device  100  with touch-sensitive displays  112  in accordance with some embodiments. 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. Device  100  may include memory  102  (which may include one or more computer readable storage mediums), memory controller  122 , one or more processing units (CPU&#39;s)  120 , peripherals interface  118 , RF circuitry  108 , audio circuitry  110 , speaker  111 , microphone  113 , input/output (I/O) subsystem  106 , other input or control devices  116 , and external port  124 . 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 device  100  is only one example of a portable multifunction device, and that device  100  may have more or fewer components than shown, may combine two or more components, or may have a different configuration or arrangement of the components. The various components shown in  FIG. 1A  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 device  100 , such as CPU  120  and the peripherals interface  118 , may be controlled by memory controller  122 . 
     Peripherals interface  118  can be used to couple input and output peripherals of the device to 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 device  100  and to process data. 
     In some embodiments, peripherals interface  118 , CPU  120 , and memory controller  122  may be implemented on a single chip, such as chip  104 . In some other embodiments, they may be implemented on separate chips. 
     RF (radio frequency) circuitry  108  receives and sends RF signals, also called electromagnetic signals. RF circuitry  108  converts electrical signals to/from electromagnetic signals and communicates with communications networks and other communications devices via the electromagnetic signals. 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. 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), high-speed uplink packet access (HSUPA), 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 e-mail (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. 
     Audio circuitry  110 , speaker  111 , and microphone  113  provide an audio interface between a user and device  100 . Audio circuitry  110  receives audio data from peripherals interface  118 , converts the audio data to an electrical signal, and transmits the electrical signal to speaker  111 . Speaker  111  converts the electrical signal to human-audible sound waves. Audio circuitry  110  also receives electrical signals converted by microphone  113  from sound waves. Audio circuitry  110  converts the electrical signal to audio data and transmits the audio data to peripherals interface  118  for processing. Audio data may be retrieved from and/or transmitted to memory  102  and/or RF circuitry  108  by peripherals interface  118 . In some embodiments, audio circuitry  110  also includes a headset jack (e.g.,  212 ,  FIG. 2 ). The headset jack provides an interface between 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). 
     I/O subsystem  106  couples input/output peripherals on device  100 , such as touch screen  112  and other input control devices  116 , to peripherals interface  118 . I/O subsystem  106  may include 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 speaker  111  and/or microphone  113 . The one or more buttons may include a push button (e.g.,  206 ,  FIG. 2 ). 
     Touch-sensitive display  112  provides an input interface and an output interface between the device and a user. Display controller  156  receives and/or sends electrical signals from/to touch screen  112 . 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. 
     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. Touch screen  112  and 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 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 touch screen  112 . In an exemplary embodiment, a point of contact between touch screen  112  and the user corresponds to a finger of the user. 
     Touch screen  112  may use LCD (liquid crystal display) technology, LPD (light emitting polymer display) technology, or LED (light emitting diode) technology, although other display technologies may be used in other embodiments. Touch screen  112  and 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 touch screen  112 . In an exemplary embodiment, projected mutual capacitance sensing technology is used, such as that found in the iPhone®, iPod Touch®, and iPad® from Apple Inc. of Cupertino, Calif. 
     Touch screen  112  may have a video resolution in excess of 100 dpi. In some embodiments, the touch screen has a video resolution of approximately 160 dpi. The user may make contact with 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 can be 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, 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 touch screen  112  or an extension of the touch-sensitive surface formed by the touch screen. 
     Device  100  also includes power system  162  for powering the various components. 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. 
     Device  100  may also include one or more optical sensors  164 .  FIG. 1A  shows an optical sensor coupled to optical sensor controller  158  in I/O subsystem  106 . Optical sensor  164  may include charge-coupled device (CCD) or complementary metal-oxide semiconductor (CMOS) phototransistors. 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 imaging module  143  (also called a camera module), optical sensor  164  may capture still images or video. In some embodiments, an optical sensor is located on the back of device  100 , opposite 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, another 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. 
     Device  100  may also include one or more proximity sensors  166 .  FIG. 1A  shows proximity sensor  166  coupled to peripherals interface  118 . Alternately, proximity sensor  166  may be coupled to input controller  160  in I/O subsystem  106 . In some embodiments, the proximity sensor turns off and disables 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). 
     Device  100  may also include one or more accelerometers  168 .  FIG. 1A  shows accelerometer  168  coupled to peripherals interface  118 . Alternately, accelerometer  168  may be coupled to an input controller  160  in I/O subsystem  106 . 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. Device  100  optionally includes, in addition to accelerometer(s)  168 , a magnetometer (not shown) and a GPS (or GLONASS or other global navigation system) receiver (not shown) for obtaining information concerning the location and orientation (e.g., portrait or landscape) of device  100 . 
     In some embodiments, the software components stored in memory  102  include operating system  126 , communication module (or set of instructions)  128 , contact/motion module (or set of instructions)  130 , graphics module (or set of instructions)  132 , text input module (or set of instructions)  134 , Global Positioning System (GPS) module (or set of instructions)  135 , and applications (or sets of instructions)  136 . Furthermore, in some embodiments memory  102  stores device/global internal state  157 , as shown in  FIGS. 1A and 3 . Device/global internal state  157  includes one or more of: active application state, indicating which applications, if any, are currently active; display state, indicating what applications, views or other information occupy various regions of touch screen display  112 ; sensor state, including information obtained from the device&#39;s various sensors and input control devices  116 ; and location information concerning the device&#39;s location and/or attitude. 
     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. 
     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 RF circuitry  108  and/or external port  124 . 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. 
     Contact/motion module  130  may detect contact with touch screen  112  (in conjunction with display controller  156 ) and other touch sensitive devices (e.g., a touchpad or physical click wheel). 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). 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, contact/motion module  130  and display controller  156  detect contact on a touchpad. 
     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 (lift off) 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 (lift off) event. 
     Graphics module  132  includes various known software components for rendering and displaying graphics on 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, graphics module  132  stores data representing graphics to be used. Each graphic may be assigned a corresponding code. 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 . 
     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). 
     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). 
     Applications  136  may include the following modules (or sets of instructions), or a subset or superset thereof:
         contacts module  137  (sometimes called an address book or contact list);   telephone module  138 ;   video conferencing module  139 ;   e-mail client module  140 ;   instant messaging (IM) module  141 ;   workout support module  142 ;   camera module  143  for still and/or video images;   image management module  144 ;   browser module  147 ;   calendar module  148 ;   widget modules  149 , which may include one or more of: 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 may be made up of a video player module and a music player module;   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 , contacts module  137  may be used to manage an address book or contact list (e.g., stored in application internal state  192  of contacts module  137  in memory  102  or memory  370 ), 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 , telephone module  138  may be used to enter a sequence of characters corresponding to a telephone number, access one or more telephone numbers in 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 , videoconferencing module  139  includes executable instructions to initiate, conduct, and terminate a video conference between a user and one or more other participants in accordance with user instructions. 
     In conjunction with RF circuitry  108 , touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , e-mail client module  140  includes executable instructions to create, send, receive, and manage e-mail in response to user instructions. In conjunction with image management module  144 , e-mail client 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  includes executable instructions 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 , workout support module  142  includes executable instructions 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 , camera module  143  includes executable instructions 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 , image management module  144  includes executable instructions 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 RF circuitry  108 , touch screen  112 , display system controller  156 , contact module  130 , graphics module  132 , and text input module  134 , browser module  147  includes executable instructions to browse the Internet in accordance with user instructions, 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 client module  140 , and browser module  147 , calendar module  148  includes executable instructions to create, display, modify, and store calendars and data associated with calendars (e.g., calendar entries, to do lists, etc.) in accordance with user instructions. 
     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 , 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 , search module  151  includes executable instructions 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 accordance with user instructions. 
     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 , video and music player module  152  includes executable instructions that allow 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, and executable instructions to display, present or otherwise play back videos (e.g., on touch screen  112  or on an external, connected display via external port  124 ). In some embodiments, device  100  may include the functionality of an MP3 player, such as an iPod (trademark of Apple Inc.). 
     In conjunction with touch screen  112 , display controller  156 , contact module  130 , graphics module  132 , and text input module  134 , notes module  153  includes executable instructions to create and manage notes, to do lists, and the like in accordance with user instructions. 
     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 , 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 accordance with user instructions. 
     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 , online video module  155  includes instructions that allow 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. 
     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. 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, device  100  is a device where operation of a predefined set of functions on the device is performed exclusively through a touch screen and/or a touchpad. By using a touch screen and/or a touchpad as the primary input control device for operation of device  100 , the number of physical input control devices (such as push buttons, dials, and the like) on 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 device  100  to a main, home, or root menu from any user interface that may be displayed on 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. 1C  is a block diagram illustrating exemplary components for event handling in accordance with some embodiments. In some embodiments, memory  102  (in  FIGS. 1A and 1B ) or  370  ( FIG. 3 ) includes event sorter  170  (e.g., in operating system  126 ) and a respective application  136 - 1  (e.g., any of the aforementioned applications  137 - 151 ,  155 ,  380 - 390 ). 
     Event sorter  170  receives event information and determines the application  136 - 1  and application view  191  of application  136 - 1  to which to deliver the event information. Event sorter  170  includes event monitor  171  and event dispatcher module  174 . In some embodiments, application  136 - 1  includes application internal state  192 , which indicates the current application view(s) displayed on touch sensitive display  112  when the application is active or executing. In some embodiments, device/global internal state  157  is used by event sorter  170  to determine which application(s) is (are) currently active, and application internal state  192  is used by event sorter  170  to determine application views  191  to which to deliver event information. 
     In some embodiments, application internal state  192  includes additional information, such as one or more of: resume information to be used when application  136 - 1  resumes execution, user interface state information that indicates information being displayed or that is ready for display by application  136 - 1 , a state queue for enabling the user to go back to a prior state or view of application  136 - 1 , and a redo/undo queue of previous actions taken by the user. 
     Event monitor  171  receives event information from peripherals interface  118 . Event information includes information about a sub-event (e.g., a user touch on touch-sensitive display  112 , as part of a multi-touch gesture). Peripherals interface  118  transmits information it receives from I/O subsystem  106  or a sensor, such as proximity sensor  166 , accelerometer(s)  168 , and/or microphone  113  (through audio circuitry  110 ). Information that peripherals interface  118  receives from I/O subsystem  106  includes information from touch-sensitive display  112  or a touch-sensitive surface. 
     In some embodiments, event monitor  171  sends requests to the peripherals interface  118  at predetermined intervals. In response, peripherals interface  118  transmits event information. In other embodiments, peripheral interface  118  transmits event information only when there is a significant event (e.g., receiving an input above a predetermined noise threshold and/or for more than a predetermined duration). 
     In some embodiments, event sorter  170  also includes a hit view determination module  172  and/or an active event recognizer determination module  173 . 
     Hit view determination module  172  provides software procedures for determining where a sub-event has taken place within one or more views, when touch sensitive display  112  displays more than one view. Views are made up of controls and other elements that a user can see on the display. 
     Another aspect of the user interface associated with an application is a set of views, sometimes herein called application views or user interface windows, in which information is displayed and touch-based gestures occur. The application views (of a respective application) in which a touch is detected may correspond to programmatic levels within a programmatic or view hierarchy of the application. For example, the lowest level view in which a touch is detected may be called the hit view, and the set of events that are recognized as proper inputs may be determined based, at least in part, on the hit view of the initial touch that begins a touch-based gesture. 
     Hit view determination module  172  receives information related to sub-events of a touch-based gesture. When an application has multiple views organized in a hierarchy, hit view determination module  172  identifies a hit view as the lowest view in the hierarchy which should handle the sub-event. In most circumstances, the hit view is the lowest level view in which an initiating sub-event occurs (i.e., the first sub-event in the sequence of sub-events that form an event or potential event). Once the hit view is identified by the hit view determination module, the hit view typically receives all sub-events related to the same touch or input source for which it was identified as the hit view. 
     Active event recognizer determination module  173  determines which view or views within a view hierarchy should receive a particular sequence of sub-events. In some embodiments, active event recognizer determination module  173  determines that only the hit view should receive a particular sequence of sub-events. In other embodiments, active event recognizer determination module  173  determines that all views that include the physical location of a sub-event are actively involved views, and therefore determines that all actively involved views should receive a particular sequence of sub-events. In other embodiments, even if touch sub-events were entirely confined to the area associated with one particular view, views higher in the hierarchy would still remain as actively involved views. 
     Event dispatcher module  174  dispatches the event information to an event recognizer (e.g., event recognizer  180 ). In embodiments including active event recognizer determination module  173 , event dispatcher module  174  delivers the event information to an event recognizer determined by active event recognizer determination module  173 . In some embodiments, event dispatcher module  174  stores in an event queue the event information, which is retrieved by a respective event receiver module  182 . 
     In some embodiments, operating system  126  includes event sorter  170 . Alternatively, application  136 - 1  includes event sorter  170 . In yet other embodiments, event sorter  170  is a stand-alone module, or a part of another module stored in memory  102 , such as contact/motion module  130 . 
     In some embodiments, application  136 - 1  includes a plurality of event handlers  190  and one or more application views  191 , each of which includes instructions for handling touch events that occur within a respective view of the application&#39;s user interface. Each application view  191  of the application  136 - 1  includes one or more event recognizers  180 . Typically, a respective application view  191  includes a plurality of event recognizers  180 . In other embodiments, one or more of event recognizers  180  are part of a separate module, such as a user interface kit (not shown) or a higher level object from which application  136 - 1  inherits methods and other properties. In some embodiments, a respective event handler  190  includes one or more of: data updater  176 , object updater  177 , GUI updater  178 , and/or event data  179  received from event sorter  170 . Event handler  190  may utilize or call data updater  176 , object updater  177  or GUI updater  178  to update the application internal state  192 . Alternatively, one or more of the application views  191  includes one or more respective event handlers  190 . Also, in some embodiments, one or more of data updater  176 , object updater  177 , and GUI updater  178  are included in a respective application view  191 . 
     A respective event recognizer  180  receives event information (e.g., event data  179 ) from event sorter  170 , and identifies an event from the event information. Event recognizer  180  includes event receiver  182  and event comparator  184 . In some embodiments, event recognizer  180  also includes at least a subset of: metadata  183 , and event delivery instructions  188  (which may include sub-event delivery instructions). 
     Event receiver  182  receives event information from event sorter  170 . The event information includes information about a sub-event, for example, a touch or a touch movement. Depending on the sub-event, the event information also includes additional information, such as location of the sub-event. When the sub-event concerns motion of a touch the event information may also include speed and direction of the sub-event. In some embodiments, events include rotation of the device from one orientation to another (e.g., from a portrait orientation to a landscape orientation, or vice versa), and the event information includes corresponding information about the current orientation (also called device attitude) of the device. 
     Event comparator  184  compares the event information to predefined event or sub-event definitions and, based on the comparison, determines an event or sub-event, or determines or updates the state of an event or sub-event. In some embodiments, event comparator  184  includes event definitions  186 . Event definitions  186  contain definitions of events (e.g., predefined sequences of sub-events), for example, event  1  ( 187 - 1 ), event  2  ( 187 - 2 ), and others. In some embodiments, sub-events in an event  187  include, for example, touch begin, touch end, touch movement, touch cancellation, and multiple touching. In one example, the definition for event  1  ( 187 - 1 ) is a double tap on a displayed object. The double tap, for example, comprises a first touch (touch begin) on the displayed object for a predetermined phase, a first lift-off (touch end) for a predetermined phase, a second touch (touch begin) on the displayed object for a predetermined phase, and a second lift-off (touch end) for a predetermined phase. In another example, the definition for event  2  ( 187 - 2 ) is a dragging on a displayed object. The dragging, for example, comprises a touch (or contact) on the displayed object for a predetermined phase, a movement of the touch across touch-sensitive display  112 , and lift-off of the touch (touch end). In some embodiments, the event also includes information for one or more associated event handlers  190 . 
     In some embodiments, event definition  187  includes a definition of an event for a respective user-interface object. In some embodiments, event comparator  184  performs a hit test to determine which user-interface object is associated with a sub-event. For example, in an application view in which three user-interface objects are displayed on touch-sensitive display  112 , when a touch is detected on touch-sensitive display  112 , event comparator  184  performs a hit test to determine which of the three user-interface objects is associated with the touch (sub-event). If each displayed object is associated with a respective event handler  190 , the event comparator uses the result of the hit test to determine which event handler  190  should be activated. For example, event comparator  184  selects an event handler associated with the sub-event and the object triggering the hit test. 
     In some embodiments, the definition for a respective event  187  also includes delayed actions that delay delivery of the event information until after it has been determined whether the sequence of sub-events does or does not correspond to the event recognizer&#39;s event type. 
     When a respective event recognizer  180  determines that the series of sub-events do not match any of the events in event definitions  186 , the respective event recognizer  180  enters an event impossible, event failed, or event ended state, after which it disregards subsequent sub-events of the touch-based gesture. In this situation, other event recognizers, if any, that remain active for the hit view continue to track and process sub-events of an ongoing touch-based gesture. 
     In some embodiments, a respective event recognizer  180  includes metadata  183  with configurable properties, flags, and/or lists that indicate how the event delivery system should perform sub-event delivery to actively involved event recognizers. In some embodiments, metadata  183  includes configurable properties, flags, and/or lists that indicate how event recognizers may interact with one another. In some embodiments, metadata  183  includes configurable properties, flags, and/or lists that indicate whether sub-events are delivered to varying levels in the view or programmatic hierarchy. 
     In some embodiments, a respective event recognizer  180  activates event handler  190  associated with an event when one or more particular sub-events of an event are recognized. In some embodiments, a respective event recognizer  180  delivers event information associated with the event to event handler  190 . Activating an event handler  190  is distinct from sending (and deferred sending) sub-events to a respective hit view. In some embodiments, event recognizer  180  throws a flag associated with the recognized event, and event handler  190  associated with the flag catches the flag and performs a predefined process. 
     In some embodiments, event delivery instructions  188  include sub-event delivery instructions that deliver event information about a sub-event without activating an event handler. Instead, the sub-event delivery instructions deliver event information to event handlers associated with the series of sub-events or to actively involved views. Event handlers associated with the series of sub-events or with actively involved views receive the event information and perform a predetermined process. 
     In some embodiments, data updater  176  creates and updates data used in application  136 - 1 . For example, data updater  176  updates the telephone number used in contacts module  137 , or stores a video file used in video player module  145 . In some embodiments, object updater  177  creates and updates objects used in application  136 - 1 . For example, object updater  176  creates a new user-interface object or updates the position of a user-interface object. GUI updater  178  updates the GUI. For example, GUI updater  178  prepares display information and sends it to graphics module  132  for display on a touch-sensitive display. 
     In some embodiments, event handler(s)  190  includes or has access to data updater  176 , object updater  177 , and GUI updater  178 . In some embodiments, data updater  176 , object updater  177 , and GUI updater  178  are included in a single module of a respective application  136 - 1  or application view  191 . In other embodiments, they are included in two or more software modules. 
     It shall be understood that the foregoing discussion regarding event handling of user touches on touch-sensitive displays also applies to other forms of user inputs to operate multifunction devices  100  with input-devices, not all of which are initiated on touch screens, e.g., coordinating mouse movement and mouse button presses with or without single or multiple keyboard presses or holds, user movements taps, drags, scrolls, etc., on touch-pads, pen stylus inputs, movement of the device, oral instructions, detected eye movements, biometric inputs, and/or any combination thereof, which may be utilized as inputs corresponding to sub-events which define an event to be recognized. 
       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 a gesture on 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 gesture may include 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 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. 
     Device  100  may also include one or more physical buttons, such as “home” or menu button  204 . As described previously, menu button  204  may be used to navigate to any application  136  in a set of applications that may be executed on device  100 . Alternatively, in some embodiments, the menu button is implemented as a soft key in a GUI displayed on touch screen  112 . 
     In one embodiment, device  100  includes touch screen  112 , menu button  204 , push button  206  for powering the device on/off and locking the device, volume adjustment button(s)  208 , Subscriber Identity Module (SIM) card slot  210 , head set jack  212 , and docking/charging external port  124 . 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, device  100  also may accept verbal input for activation or deactivation of some functions through microphone  113 . 
       FIG. 3  is a block diagram of an exemplary multifunction device with a display and a touch-sensitive surface in accordance with some embodiments. Device  300  need not be portable. In some embodiments, device  300  is a laptop computer, a desktop computer, a tablet 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). 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. Communication buses  320  may include circuitry (sometimes called a chipset) that interconnects and controls communications between system components. Device  300  includes input/output (I/O) interface  330  comprising display  340 , which is typically a touch screen display. I/O interface  330  also may include a keyboard and/or mouse (or other pointing device)  350  and 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 CPU(s)  310 . In some embodiments, memory  370  stores programs, modules, and data structures analogous to the programs, modules, and data structures stored in 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 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 portable multifunction device  100 . 
       FIG. 4A  illustrates an exemplary user interface for a menu of applications on portable multifunction device  100  in accordance with some embodiments. Similar user interfaces may be implemented on device  300 . In some embodiments, user interface  400  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   Video and music player  152 , also referred to as iPod (trademark of Apple Inc.) module  152 ; and   
           Icons for other applications, such as:
           IM  141 ;   Image management  144 ;   Camera  143 ;   Weather  149 - 1 ;   Stocks  149 - 2 ;   Workout support  142 ;   Calendar  148 ;   Alarm clock  149 - 4 ;   Map  154 ;   Notes  153 ;   Settings  412 , which provides access to settings for device  100  and its various applications  136 ; and   Online video module  155 , also referred to as YouTube (trademark of Google Inc.) module  155 .   
               

       FIG. 4B  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 ). Although many of the examples which follow will be given with reference to inputs on 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. 4B . In some embodiments the touch sensitive surface (e.g.,  451  in  FIG. 4B ) has a primary axis (e.g.,  452  in  FIG. 4B ) that corresponds to a primary axis (e.g.,  453  in  FIG. 4B ) on the display (e.g.,  450 ). In accordance with these embodiments, the device detects contacts (e.g.,  460  and  462  in  FIG. 4B ) with the touch-sensitive surface  451  at locations that correspond to respective locations on the display (e.g., in  FIG. 4B ,  460  corresponds to  468  and  462  corresponds to  470 ). In this way, user inputs (e.g., contacts  460  and  462 , and movements thereof) detected by the device on the touch-sensitive surface (e.g.,  451  in  FIG. 4B ) are used by the device to manipulate the user interface on the display (e.g.,  450  in  FIG. 4B ) of the multifunction device when the touch-sensitive surface is separate from the display. It should be understood that similar methods may be used for other user interfaces described herein. 
     User Interfaces and Associated Processes 
     Attention is now directed towards embodiments of user interfaces (“UI”) and associated processes that may be implemented on an electronic device with a display and a touch-sensitive surface, such as device  300  or portable multifunction device  100 . 
     FIGS.  5 A- 5 NNN illustrate exemplary user interfaces for manipulating soft keyboards in accordance with some embodiments. The user interfaces in these figures are used to illustrate the processes described below, including the processes in  FIGS. 6A-6B ,  7 A- 7 B,  8 A- 8 B,  9 ,  10 A- 10 B,  11 A- 11 D,  12 A- 12 B,  13 A- 13 B. 
       FIG. 5A  depicts user interface (UI)  5000 A displayed on touch-sensitive display  112  of a device (e.g., device  100 ). UI  5000 A may be a user interface in an application (e.g., a notes application, a web browser application, etc.) on device  100 . UI  5000 A includes text entry area  5002 . Cursor  5004  and input text  5006  are displayed in text entry area  5002 . 
     Unsplit soft keyboard  5008  is displayed on display  112 . The keys of unsplit soft keyboard  5008  are not split amongst two or more distinct keyboard portions. In some embodiments, unsplit soft keyboard  5008  includes keyboard split key  5012 . In some embodiments, keyboard split key  5012  shows an icon or other graphical indicia (e.g., an icon or graphic showing two halves moving, as in splitting, apart) that keyboard split key  5012  may be used to switch to an integrated input area that includes a split soft keyboard. 
       FIG. 5A  also depicts exemplary gestures that, if detected, activate splitting of unsplit soft keyboard  5008  in response. Gesture  5010  is a two-finger de-pinch gesture performed on unsplit soft keyboard  5008 . Gesture  5010  includes finger contacts  5010 -A and  5010 -B moving apart from each other in directions  5011 -A and  5011 -B, respectively, on display  112 . On the other hand, gesture  5014  is a tap gesture on keyboard split key  5012 . 
     In response to detection of either gesture  5010  or  5014  on display  112 , device  100  changes unsplit soft keyboard  5008  ( FIG. 5A ) into integrated input area  5016  ( FIG. 5C ). In some embodiments, an animation showing the transition from unsplit soft keyboard  5008  to integrated input area  5016  is displayed on display  112 . For example, the transitional animation may show unsplit soft keyboard  5008  splitting into halves and center area  5016 -C appearing between the halves, with the halves moving apart from each other in directions  5017 -A and  5017 -B. The halves become split keyboard portions  5016 -A and  5016 -B and the keys of unsplit soft keyboard  5008  are divided amongst the halves. In some embodiments, some keys are included in both left and right portions  5016 -A and  5016 -B of integrated input area  5016 .  FIG. 5B  depicts user interface  5000 B at an instant in the transitional animation from unsplit soft keyboard  5008  to integrated input area  5016 . What was unsplit soft keyboard  5008  has transitioned into integrated input area  5016 , with the keys of unsplit soft keyboard  5008  divided between two opposing portions. Upon completion of the transition animation, integrated input area  5016  is displayed, as shown in  FIG. 5C . 
       FIG. 5C  depicts user interface  5000 C, with integrated input area  5016  displayed after completion of the transition animation. Integrated input area  5016  includes left split keyboard portion  5016 -A and right split keyboard portion  5016 -B, and center area  5016 -C between split keyboard portions  5016 -A and  5016 -B. Split keyboard portions  5016 -A and  5016 -B and center area  5016 -C form integrated input area  5016 . In some embodiments, integrated input area  5016  includes keyboard unsplit key  5018 , replacing keyboard split key  5012 . In some embodiments, a character key is included in both split keyboard portions  5016 -A and  5016 -B. For example, “G” key  5019  is included in both portions  5016 -A and  5016 -B. In some embodiments, some keys in unsplit soft keyboard  5008  are not displayed in integrated input area  5016 . For example, hide keyboard key  5009  ( FIG. 5A ) in unsplit soft keyboard  5008  is not displayed in integrated input area  5016 . 
     In some embodiments, center area  5016 -C displays duplicate cursor  5020  and duplicate input text  5022 . Duplicate cursor  5020  and duplicate input text  5022  mirror cursor  5004  and at least a portion of input text  5006 , respectively. The portion of input text  5006  that is visible in center area  5016 -C as duplicate input text  5022  at any moment is typically the portion of input text  5006  that is in the immediate vicinity of cursor  5004 . In some embodiments, duplicate cursor  5020  and duplicate input text  5006  are displayed at larger sizes than cursor  5004  and input text  5006 , respectively. In some other embodiments, center area  5016  is empty, and text entry area  5002  is visible through center area  5016 -C, as shown in  FIG. 5K . 
       FIG. 5D  depicts user interface  5000 D, with gesture  5026  detected on display  112 . Gesture  5026  is detected on “T” key  5024  in left split keyboard portion  5016 -A. In response to detection of gesture  5026  on “T” key  5024 , “T” key  5024  is activated and a “t” character is entered into input text  5006 . Duplicate input text  5022  in center area  5016 -C also shows the “t” character being entered, mirroring the entering of the “t” character into input text  5006 . 
       FIG. 5E  depicts user interface  5000 E, showing gestures that, if detected, activate un-splitting of the split soft keyboard in integrated input area  5016  in response. Gesture  5028  is a two-finger pinch gesture performed on integrated input area  5016 . Gesture  5028  includes finger contacts  5028 -A and  5028 -B moving toward each other in directions  5030 -A and  5030 -B, respectively, on display  112 . On the other hand, gesture  5032  is a tap gesture on keyboard unsplit key  5018 . 
     In response to detection of either gesture  5028  or  5032  on display  112 , device  100  changes integrated input area  5016  into unsplit soft keyboard  5008 . In some embodiments, an animation showing the transition from integrated input area  5016  to unsplit soft keyboard  5008  is displayed on display  112 . For example, the transitional animation may show split keyboard portions  5016 -A and  5016 -B merging together and center area  5016 -C reducing in size and eventually ceasing to be displayed.  FIG. 5F  depicts user interface  5000 F at a point in the transitional animation. Integrated input area portions  5016 -A and  5016 -B are merging together in directions  5034 -A and  5034 -B and center area  5016 -C continually reduces in size. Upon completion of the transition animation, unsplit soft keyboard  5008 , including keyboard split key  5012 , is displayed in UI  5000 G, as shown in  FIG. 5G . 
       FIG. 5H  depicts user interface  5000 H displayed on display  112 . Tap gesture  5038  is detected at some time on “T” key  5036  in unsplit soft keyboard  5008 . In response, “T” key  5036  is activated; a “t” character is entered into input text  5006  displayed in UI  5000 I, as shown in  FIG. 5I . 
       FIG. 5I  also depicts gesture  5010  detected on display  112  at a time after the time of detection of gesture  5038 . In some embodiments, whether integrated input area  5016  is displayed in place of unsplit soft keyboard  5008 , in response to detection of gesture  5010  depends on the time when gesture  5038  is detected and the time when gesture  5010  is detected. If the time period between the time when gesture  5038  is detected and the time when gesture  5010  is detected exceeds a predefined period of time (e.g., 0.3, 0.5, or 1.0 seconds), then integrated input area  5016  is displayed in UI  5000 K, as shown in  FIG. 5K . In some embodiments, a transitional animation is displayed in UI  5000 J, as shown in  FIG. 5J .  FIG. 5J  is similar to  FIG. 5B , and thus a detailed description of  FIG. 5J  is omitted for brevity. If the time period between the time when gesture  5038  is detected and the time when gesture  5010  is detected does not exceed the predefined period of time, then the display of unsplit soft keyboard  5008  is maintained. This use of a time threshold prevents accidental conversion of the unsplit keyboard  5008  into an integrated input area  5016  when the user is in the middle of typing using the unsplit keyboard. 
       FIG. 5L  depicts user interface  5000 L displayed on display  112 . User interface  5000 L may be a user interface in an application (e.g., a notes application, a web browser application, etc.) on device  100 . User interface  5000 L includes text entry area  5002  and integrated input area  5039 . Integrated input area  5039  includes split keyboard portions  5039 -A and  5039 -B, and center area  5039 -C. In some embodiments, integrated input area  5039  is integrated input area  5016 , with duplicate input text and a duplicate cursor displayed in center area  5039 -C. 
     In some embodiments, integrated input area  5039  may move to a different location on display  112  in response to a gesture (e.g., a dragging gesture). In  FIG. 5L , two gestures are shown: gesture  5040  and gesture  5044 . Gesture  5040  is a dragging gesture where the finger contact begins in center area  5039 -C, as indicated by finger contact position  5040 - 1 , and moves to position  5040 - 2 . Gesture  5044  is a dragging gesture where the finger contact begins in split keyboard portion  5039 -B, as indicated by finger contact position  5044 - 1 , and moves to position  5044 - 2 . 
     Whether integrated input area  5039  does move in response to detection of gesture  5040  or gesture  5044  depends on whether the magnitude of respective gesture  5040  or  5044 , i.e., a distance the finger contact moves in the gesture, exceeds a respective predefined threshold. The amount of the threshold depends on whether the detected gesture begins in center area  5039  or in split keyboard portion  5039 -A or  5039 -B. For a gesture that starts in center area  5039 -C, threshold  5042  is a predefined distance from the start of the gesture. For a gesture that starts in split keyboard portion  5039 -B or  5039 -A, threshold  5046  is a predefined distance from the start of the gesture. The distance for threshold  5046  is longer than the distance for threshold  5042 . Thus, the integrated input area will start moving in accordance with the movement of the contact in gesture  5040  before the integrated input area will start moving in accordance with the movement of the contact in gesture  5044 . The distance threshold is greater over the split keyboard portions of the integrated input area (as compared to the center portion of the integrated input area) to prevent accidental movement of the integrated input area when a user contact moves during typing with the split keyboard. 
     In some embodiments, a distance threshold is compared against the vertical distance component of the gesture. In some other embodiments, the distance threshold is compared against the complete gesture, including both the horizontal and vertical distance components; the threshold is compared against the absolute distance of the gesture. Thus, for example, alternative thresholds  5046  and  5048  are shown for gesture  5044 . Threshold  5046  is compared to the vertical component of gesture  5044 . Threshold  5048 , on the other hand, is compared to the complete gesture  5044 . 
     If either gesture  5040  or  5044  is detected, and the detected gesture exceeds a respective threshold in accordance with where the detected gesture began, then integrated input area  5039  moves vertically in accordance with the direction of the detected gesture in UI  5000 M, as shown in  FIG. 5M . Split keyboard portions  5039 -A,  5039 -B, and center area  5039 -C move together as one integrated unit in a vertical direction. Movement of integrated input area  5039  is typically restricted to vertical—up or down—movement, which keeps the left and right split keyboard portions adjacent to the left and right sides of the display, respectively, when the integrated input area is moved. In turn, this keeps the keys in the left and right split keyboard portions easily reachable by the left and right thumbs, respectively, during two-thumb typing. 
       FIG. 5N  illustrates two charts showing the amount of the threshold based on where on display  112  the gesture begins. Chart  5050  shows the amount of the threshold according to some embodiments. Chart  5050  has an x-axis being the position along the width of display  112  and the y-axis being the magnitude of the threshold, with the ends of the x-axis representing the left and right edges of display  112 . Line  5052  is a line marking the center axis of display  112 . Span  5055  between lines  5054 -A and  5054 -B represent the width of center area  5039 -C. The areas outside of span  5055  represent the widths of split keyboard portions  5039 -A and  5039 -B. A first value is defined for threshold  5056 -B, for gestures that begin in center area  5039 -C. Threshold  5056 -B is constant for the width of center area  5039 -C. A second value is defined for threshold  5056 -A, for gestures that begin in either split keyboard portion  5039 -A or  5039 -B. Threshold  5056 -A is constant for the widths of split keyboard portions  5039 -A or  5039 -B. 
     Chart  5058  shows the amount of the threshold according to some alternative embodiments. Chart  5058  has an x-axis being the position along the width of display  112  and the y-axis being the magnitude of the threshold, with the ends of the x-axis representing the left and right edges of display  112 . Span  5055  between lines  5054 -A and  5054 -B represents the width of center area  5039 -C. The areas outside of span  5055  represent the widths of split keyboard portions  5039 -A and  5039 -B. Chart  5058  shows threshold amounts  5060 -A and  5060 -B defined to be a particular amount at center line  5052  and increasing linearly from that amount with the distance from center line  5052 . Under either chart  5050  or  5058 , the threshold within center area  5039 -C is lower than the threshold in split keyboard portion  5039 -A or  5039 -B. In center area  5039 -C, the distance threshold is lower because there is less opportunity for confusing a dragging gesture (for moving integrated input area  5039 ) with a key activation gesture (for entering a character). 
       FIG. 5O  depicts UI  5000 O. UI  5000 O includes application content area  5062 , with height  5064 , displayed on display  112 . UI  5000 O also includes integrated input area  5039 , with height  5065 , docked at the bottom on display  112 . The sum of height  5064  and height  5065  is equal (or substantially equal, e.g., within 10 pixels) to height  5066  of display  112 . Gesture  5068  is detected on display  112 . Gesture  5068  includes a finger contact moving on display  112  from position  5068 - 1  to position  5068 - 2 . 
     In response to detecting gesture  5068 , integrated input area  5039  is undocked and moves vertically in accordance with the direction of gesture  5068  in UI  5000 P, as shown in  FIG. 5P . Integrated input area  5039  is displayed as an overlay over application content area  5062  in  FIG. 5P . Also in response to detecting gesture  5068 , application content area  5062  increases in size to occupy height  5066 . As a result of the increase in size, content in application content area  5062  that was previously not visible in UI  5000 O absent scrolling may become visible in UI  5000 P. For example, instant messaging (IM) field  5067  is visible in UI  5000 P without scrolling. Thus, when an input area with a keyboard is “undocked” from the bottom of the display, more display area is used to display the application content area and the input area “floats” over the application content area. 
       FIG. 5Q  depicts UI  5000 Q displayed on display  112 . UI  5000 Q includes text entry area  5002  and split soft keyboard  5069 . In some embodiments, split soft keyboard  5069  is part of integrated input area  5016  or  5039 . Cursor  5004  and input text  5006  are displayed in text entry area  5002 . Split keyboard  5069  includes left split keyboard portion  5069 -A and right split keyboard portion  5069 -B. In left split keyboard portion  5069 -A, the rightmost letter keys include “T” key  5070 , “F” key  5072 , and “V” key  5074 . In right split keyboard portion  5039 -B, the leftmost letter keys include “Y” key  5076 , “G” key  5078 , and “B” key  5080 . 
     To the right of “T” key  5070 , “F” key  5072 , and “V” key  5074  in left split keyboard portion  5069 -A are undisplayed key activation areas  5082 ,  5084 , and  5086 , respectively. Activation area  5082  corresponds to “Y” key  5076 . Activation area  5084  corresponds to “G” key  5078 . Activation area  5086  corresponds to “B” key  5080 . The undisplayed key activation areas are typically the same size as or slightly larger (e.g., up to 10% larger) than the corresponding key. The diagonal lines in activation areas  5082 ,  5084 , and  5086  in the figures are used to indicate that these activation areas are not displayed to the user, whereas the corresponding keys are displayed. 
     To the left of “Y” key  5076 , “G” key  5078 , and “B” key  5080  are undisplayed key activation areas  5088 ,  5090 , and  5092 , respectively. Activation area  5088  corresponds to “T” key  5070 . Activation area  5090  corresponds to “F” key  5072 . Activation area  5092  corresponds to “V” key  5074 . The undisplayed key activation areas are typically the same size as or slightly larger (e.g., up to 10% larger) than the corresponding key. The diagonal lines in activation areas  5088 ,  5090 , and  5092  in the figures are used to indicate that these activation areas are not displayed to the user, whereas the corresponding keys are displayed. 
       FIG. 5Q  also shows gesture  5096  (e.g., a tap gesture) detected on “O” key  5094  in right split keyboard portion  5069 -B. In response to detection of gesture  5096 , a character “o” is entered into input text  5006  in UI  5000 R, as shown in  FIG. 5R . 
       FIG. 5R  also shows gesture  5098  detected on key activation area  5086  following detection of gesture  5096 . In some embodiments, in response to detection of gesture  5098 , a character “b” is entered into input text  5006  in UI  5000 S, as shown in  FIG. 5S , as key activation area  5086  corresponds to “B” key  5080 . 
     In some other embodiments, a character “b” is entered into input text  5006  in response to detection of gesture  5098  if the time period between the time of detection for gesture  5096  and the time of detection for gesture  5098  is less than a predefined period of time. If the time period exceeds the predefined period, entering of the character “b” is foregone; gesture  5098  is ignored. 
       FIG. 5T  shows UI  5000 T, with gesture  5100  detected on key activation area  5088 . In response to detection of gesture  5100 , a character “t” is entered into input text  5006  in UI  5000 U, as shown in  FIG. 5U , as key activation area  5088  corresponds to “T” key  5070 . 
       FIG. 5V  depicts UI  5000 V. UI  5000 V includes text entry area  5002  and integrated input area  5016 . Integrated input area  5016  includes split keyboard portions  5016 -A (the left portion) and  5016 -B (the right portion) and center area  5016 -C. Cursor  5004  and input text  5006  are also displayed in text entry area  5002 . Cursor  5004  and input text  5006  are mirrored in center area  5016 -C as duplicate cursor  5020  and duplicate input text  5022 , respectively. In some embodiments, duplicate cursor  5020  and duplicate input text  5022  are displayed at larger sizes than cursor  5004  and input text  5006 , respectively. 
       FIG. 5V  also shows gesture  5102  (e.g., a tap gesture) detected on “T” key  5024  in left split keyboard portion  5016 -A. In response to detection of gesture  5102 , a character “t” is entered into input text  5006  in UI  5000 W, as shown in  FIG. 5W . Input text  5006 , including the newly entered character “t,” is mirrored in center area  5016 -C, as duplicate input text  5022  also shows the newly entered letter “t.” 
       FIG. 5X  shows UI  5000 X, with gesture  5102  detected on duplicate cursor  5020  in center area  5016 -C, while duplicate cursor  5020  is located at the end of duplicate input text  5022  (mirroring cursor  5004  being located at the end of input text  5006 ). Gesture  5102  is a dragging gesture, with the finger contact moving in direction  5103 . In response to detection of gesture  5102  on duplicate cursor  5020 , cursor  5004  is moved to a different position in input text  5006  in accordance with direction  5103  in UI  5000 Y, as shown in  FIG. 5Y . The result of the movement of cursor  5004  is mirrored in center area  5016 -C, as duplicate input text  5022  is moved so that duplicate cursor  5020  is in the same position relative to duplicate input text  5022  as cursor  5004  is relative to input text  5006 . In some embodiments, duplicate cursor  5020  remains stationary within center area  5016 -C, and its position relative to duplicate input text  5022  changes by advancing or retreating duplicate input text  5022 , as shown in  FIG. 5Y . 
       FIG. 5Z  depicts UI  5000 Z. Editing control object  5104 , corresponding to a text editing operation, is displayed in UI  5000 Z near input text  5006 . Editing control object  5104  corresponds to a text pasting operation to be performed on input text  5006  if activated. Duplicate editing control object  5106 , corresponding to editing control object  5104 , is displayed in center area  5016 -C near duplicate input text  5022 . Gesture  5108  (e.g., a tap gesture) is detected on duplicate editing control object  5106 . 
     In response to detection of gesture  5108  on duplicate editing control object  5106 , the text pasting operation corresponding to editing control object  5104  is activated in UI  5000 AA, as shown in FIG.  5 AA. Text “ahead” is pasted into input text  5006 . The text pasting is mirrored in center area  5016 -C, as duplicate text  5022  is updated to also include the pasted text “ahead.” 
     FIG.  5 BB depicts UI  5000 BB. UI  5000 BB includes form  5110  displayed in text entry area  5002 . Form  5110  includes one or more text entry fields  5114  and one or more checkboxes  5112 , each respective checkbox  5112  associated with an option in form  5110 . For example, checkbox  5112 -A in form  5110  is associated with the “Vegetarian” option. Duplicate checkboxes  5116  and the corresponding options mirror checkboxes  5112  and the corresponding options and are displayed in center area  5016 -C. For example, duplicate checkbox  5116 -A corresponds to checkbox  5112 -A, duplicate checkbox  5116 -B corresponds to checkbox  5112 -B, and so on forth. In some embodiments, duplicate checkboxes  5116  and the corresponding options are displayed at larger sizes than their corresponding checkboxes  5112 . Gesture  5118  (e.g., a tap gesture) is detected on duplicate checkbox  5116 -A, which is unselected (i.e., not checked), as is checkbox  5112 -A. 
     In response to detection of gesture  5118  on duplicate checkbox  5116 -A, checkbox  5112 -A is selected in UI  5000 CC, as shown in FIG.  5 CC. Duplicate checkbox  5116 -A is also selected, mirroring the selection of checkbox  5112 -A. 
     FIG.  5 DD depicts UI  5000 DD. UI  5000 DD shows gesture  5120  detected in center area  5016 -C, away from duplicate cursor  5020  and duplicate input text  5022 . In some embodiments, gesture  5120  is a double tap gesture or a finger contact held in place. In response to detection of gesture  5120  in center area  5016 -C, pop-up menu  5122  is displayed in UI  5000 EE, as shown in FIG.  5 EE. Duplicate menu  5124  is displayed in center area  5016 -C. Selection of an option in duplicate menu  5124  has the same effect as selecting the corresponding option in pop-up menu  5122 . In other embodiments (not shown), in response to detection of gesture  5120 , menu  5124  is displayed in center area  5016 -C, without concurrently displaying  5122 ; in other words, a pop-up menu is just displayed in the center area  5016 -C. 
     FIG.  5 FF depicts UI  5000 FF. UI  5000 FF includes handwriting  5126  made using one or more finger strokes  5128  made within center area  5016 -C. Handwriting  5126  is recognized to resemble a Chinese character, and one or more candidate characters (not shown) may be displayed in center area  5016 -C. In response to selection of a candidate character, the selected candidate character is entered into input text  5006  in UI  5000 GG, as shown in FIG.  5 GG. In UI  5000 GG, the character “ ” is entered into input text  5006 . In some embodiments, duplicate input text  5022  also shows the character “ ” being entered. 
     FIG.  5 HH depicts UI  5000 HH. UI  5000 HH includes cursor  5004  in text entry area  5002  and drawing  5130 , made using one or more finger strokes  5132 , in center area  5016 -C. After completion of drawing  5130 , drawing  5133  corresponding to drawing  5130  is entered into text entry area  5002  in UI  5000 II, as shown in FIG.  5 II. 
     FIG.  5 JJ depicts UI  5000 JJ. UI  5000 JJ includes input text  5006  and cursor  5004  displayed in text entry area  5002 . Suggested word  5134  for input text  5006  is displayed. Duplicate suggested word  5136 , corresponding to suggested word  5134 , is displayed in center area  5016 -C near duplicate input text  5022 . Gesture  5138  (e.g., a tap gesture) is detected on X-icon  5137  (which corresponds to X-icon  5135  accompanying suggested word  5134 ) accompanying duplicate suggested word  5136 . 
     In response to detection of gesture  5138  on X-icon  5137 , suggested word  5134  is rejected, and input text  506  remains as is in UI  5000 KK, as shown in FIG.  5 KK. 
     FIG.  5 LL depicts UI  5000 LL. UI  5000 LL includes input text  5006  and cursor  5004  displayed in text entry area  5002 . One or more emoticons  5140  available for entry into input text  5006  are displayed. Duplicate emoticons  5142 , corresponding to emoticons  5140 , are displayed in center area  5016 -C near duplicate input text  5022 . Gesture  5144  (e.g., a tap gesture) is detected on duplicate emoticon  5142 -A, which corresponds to emoticon  5140 -A. 
     In response to detection of gesture  5144  on duplicate emoticon  5142 -A, emoticon  5140 -A is entered into input text  5006  in UI  5000 MM, as shown in FIG.  5 MM. The changed text input  5006  is mirrored in center area  5016 -C, as duplicate emoticon  5142 -A is entered into duplicate input text  5022 . In other embodiments (not shown), emoticons  5142  are displayed in center area  5016 -C, without concurrently displaying emoticons  5140 ; in other words, the emoticons available for input are just displayed in the center area  5016 -C. 
     FIG.  5 NN depicts UI  5000 NN, which includes input text  5006  and cursor  5004  displayed in text entry area  5002 . One or more Unicode characters  5146  available for entry into input text  5006  are displayed. Duplicate Unicode characters  5148 , corresponding to Unicode characters  5146 , are displayed in center area  5016 -C near duplicate input text  5022 . Gesture  5149  (e.g., a tap gesture) is detected on duplicate Unicode character  5148 -A, which corresponds to Unicode character  5146 -A. 
     In response to detection of gesture  5149  on duplicate Unicode character  5148 -A, Unicode character  5146 -A is entered into input text  5006  in UI  5000 OO, as shown in FIG.  5 OO. The changed text input  5006  is mirrored in center area  5016 -C, as duplicate input text  5022  also includes duplicate Unicode character  5148 -A. In other embodiments (not shown), Unicode characters  5148  are displayed in center area  5016 -C, without concurrently displaying Unicode characters  5146 ; in other words, the Unicode characters available for input are just displayed in the center area  5016 -C. 
     FIG.  5 PP depicts UI  5000 PP, which includes input text  5006  and cursor  5004  displayed in text entry area  5002 . Cursor  5004  and at least a portion of input text  5006  are mirrored in center area  5016 -C as duplicate cursor  5020  and duplicate input text  5022 , respectively. Gesture  5150  is detected in center area  5016 -C. Gesture  5150  includes a finger contact moving from position  5150 -A to position  5150 -B, going over duplicate input text  5022 . 
     In response to detection of gesture  5150  over duplicate input text  5022 , duplicate input text  5022  is displayed with shading  5154  (or other highlighting), indicating that duplicate input text  5022  is selected. The corresponding text in input text  5006  is displayed with shading  5152  (or other highlighting) as well. 
     FIG.  5 RR depicts UI  5000 RR, which includes input text  5006  and cursor  5004  displayed in text entry area  5002 . Cursor  5004  and input text  5006  is mirrored in center area  5016 -C as duplicate cursor  5020  and duplicate input text  5022 , respectively. Gesture  5156  (e.g., a double tap gesture, a triple tap gesture, or a tap and hold gesture) is detected in center area  5016 -C on duplicate input text  5022 . Gesture  5156  is associated with a text formatting operation (e.g., making text bold, underling text, italicizing text, etc.). 
     In response to detection of gesture  5156  on duplicate input text  5022 , the formatting of input text  5006  is changed in UI  5000 SS, as shown in FIG.  5 SS. Input text  5006  is changed to bold text. Duplicate input text  5022  is also changed to bold text to mirror the change in the formatting of input text  5006 . 
     FIG.  5 TT depicts UI  5000 TT. Displayed in UI  5000 TT is a menu  5158  of input options for center area  5016 -C. Menu  5158  includes options for allowable user inputs in center area  5016 -C, such as gestures associated with text formatting operations, gestures associated with text editing operations, Chinese character handwriting, drawing, emoticons, and so forth. A user may select, in menu  5158 , inputs that they want enabled or disabled in center area  5016 -C. 
     FIG.  5 UU depicts UI  5000 UU. UI  5000 UU includes application content area  5160  (e.g., a content area in a web browser, content area in a word processing application, etc.). Displayed in application content area  5160  are one or more text entry areas  5162  (e.g., text fields in an online form). For example, application content area  5160  includes text entry areas  5162 -A thru  5162 -F that are a part of an online form. Soft keyboard  5164  is also displayed. While soft keyboard  5164  is shown as an unsplit soft keyboard, in some embodiments, the input area is a split soft keyboard or an integrated input area that includes a split keyboard, such as integrated input area  5016  or  5039 . 
     Gesture  5166  is detected on display  112 . Gesture  5166  is a dragging gesture that includes a finger contact starting at position  5166 -A and moving to position  5166 -B. In response to detection of gesture  5166 , soft keyboard  5164  moves vertically in accordance with the direction of gesture  5166  and final position  5166 -B in UI  5000 VV, as shown in FIG.  5 VV. After drag gesture  5166 , soft keyboard  5164  may partially obscure a text entry area  5162 . For example, in UI  5000 VV, soft keyboard  5164  partially obscures text entry area  5162 -F. 
     FIG.  5 UU depicts UI  5000 WW. In UI  5000 WW, gesture  5168  is detected. Gesture  5168  is a flick gesture in a vertical direction starting from a location on soft keyboard  5164 . In response to detection of gesture  5168 , movement trajectory  5170 , including movement inertia, is imparted to soft keyboard  5164  in accordance with gesture  5168 . For example, a short trajectory is imparted in response to a small flicking gesture, and a long trajectory is imparted in response to a large flicking gesture. Movement trajectory  5170  has termination point  5171 . 
     Soft keyboard  5164  moves with inertia in accordance with movement trajectory  5170  in UI  5000 XX, as shown in FIG.  5 XX, and comes to rest at a position adjacent to and below text entry area  5162 -F. As soft keyboard  5164  stops just below text entry area  5162 -F, none of text entry area  5162 -F is obscured by soft keyboard  5164 . Even though trajectory  5170  and the associated movement inertia would otherwise carry soft keyboard  5164  to termination point  5171 , which is above the bottom of text entry area  5162 -F (FIG.  5 WW), trajectory  5170  is adjusted so that soft keyboard  5164  stops just below text entry area  5162 -F. 
     FIG.  5 YY depicts UI  5000 YY. In UI  5000 YY, gesture  5172  is detected. Gesture  5172  is a flicking gesture in a vertical direction starting from a location on soft keyboard  5164 , and is a larger flicking gesture than gesture  5168 . In response to detection of gesture  5172 , movement trajectory  5174 , including movement inertia, is imparted onto soft keyboard  5164  in accordance with gesture  5172 . Movement trajectory  5174  is larger than movement trajectory  5170  and has termination point  5175 . 
     Soft keyboard  5164  moves with inertia in accordance with movement trajectory  5174  in UI  5000 ZZ, as shown in FIG.  5 ZZ, and comes to rest at a position adjacent to and below text entry area  5162 -A. As soft keyboard stops just below text entry area  5162 -A, none of text entry area  5162 -A is obscured by soft keyboard  5164 . Even though trajectory  5174  and the associated inertia would otherwise carry soft keyboard  5164  to termination point  5175 , which is above the bottom of text entry area  5162 -A (FIG.  5 YY), trajectory  5174  is adjusted so that soft keyboard  5164  stops just below text entry area  5162 -A. 
     In some embodiments, when the keyboard is “thrown” or “flung,” the keyboard bounces off the top or bottom of the display by some amount (e.g., an amount corresponding to a top or bottom toolbar height, respectively) if there is some appreciable velocity component of the touch at the time the touch lifts off. Conversely, when the keyboard is dragged to the edge of the display and released with no or very little velocity, the keyboard “docks” flush with the edge of the display (not shown). 
     FIG.  5 AAA depicts UI  5000 AAA displayed on display  112 . UI  5000 AAA includes text entry area  5002 , with cursor  5004  and input text  5006  displayed in text entry area  5002 . Integrated input area  5039  is also displayed in UI  5000 AAA. Integrated input area  5039  includes split keyboard portions  5039 -A (the left portion) and  5039 -B (the right portion) and center area  5039 -C. 
     Gesture  5176  is detected on display  112 . In some embodiments, gesture  5176  is a two-thumb tap gesture, with one thumb on location  5176 -A over split keyboard portion  5039 -A and the other thumb on location  5176 -B over split keyboard portion  5039 -B. 
     In response to detection of gesture  5176 , device  100  enters a reconfiguration mode for integrated input area  5039  in UI  5000 BBB (FIG.  5 BBB). While device  100  is in the reconfiguration mode, gesture  5178  is detected on display  112 . Gesture  5178  includes a left thumb contact moving toward the left edge of display  112 . In response to detection of gesture  5178 , split keyboard portion  5039 -A reduces in size (e.g., in width, height, or both width and height) in UI  5000 CCC, as shown in FIG.  5 CCC, and the keys in split keyboard portion  5039 -A rescale in accordance with the size reduction of split keyboard portion  5039 -A. In some embodiments, center area  5039 -C increases in size and split keyboard portion  5039 -B maintains the same size in response. In some other embodiments, both center area  5039 -C and split keyboard portion  5039 -B increases in size in response. 
     FIG.  5 DDD depicts UI  5000 DDD, which shows gesture  5180  detected on display  112  while in the reconfiguration mode. Gesture  5180  includes a left thumb contact moving away from the left edge of display  112 . In response to detection of gesture  5180 , split keyboard portion  5039 -A increases in size (e.g., in width, height, or both width and height) in UI  5000 EEE, as shown in FIG.  5 EEE, and the keys in split keyboard portion  5039 -A rescale in accordance with the size increase of split keyboard portion  5039 -A. In some embodiments, center area  5039 -C decreases in size and split keyboard portion  5039 -B maintains the same size in response. In some other embodiments, both center area  5039 -C and split keyboard portion  5039 -B decreases in size in response. 
     FIG.  5 FFF depicts UI  5000 FFF, which shows gesture  5182  detected on display  112  while in the reconfiguration mode. Gesture  5182  includes a right thumb contact moving toward the right edge of display  112 . In response to detection of gesture  5182 , split keyboard portion  5039 -B reduces in size (e.g., in width, height, or both width and height) in UI  5000 GGG, as shown in FIG.  5 GGG, and the keys in split keyboard portion  5039 -B rescale in accordance with the size reduction of split keyboard portion  5039 -B. In some embodiments, center area  5039 -C increases in size and split keyboard portion  5039 -A maintains the same size in response. In some other embodiments, both center area  5039 -C and split keyboard portion  5039 -A increases in size in response. 
     FIG.  5 HHH depicts UI  5000 HHH, which shows gesture  5184  detected on display  112  while in the reconfiguration mode. Gesture  5184  includes a right thumb contact moving away from the right edge of display  112 . In response to detection of gesture  5184 , split keyboard portion  5039 -B increases in size (e.g., in width, height, or both width and height) in UI  5000 III, as shown in FIG.  5 III, and the keys in split keyboard portion  5039 -B rescale in accordance with the size reduction of split keyboard portion  5039 -B. In some embodiments, center area  5039 -C decreases in size and split keyboard portion  5039 -A maintains the same size in response. In some other embodiments, both center area  5039 -C and split keyboard portion  5039 -A decreases in size in response. 
     FIG.  5 JJJ depicts UI  5000 JJJ, which shows gesture  5186  being detected on display  112  while in the reconfiguration mode, in some other embodiments. Gesture  5186  includes a left thumb contact moving toward the left edge of display  112 . In response to detection of gesture  5186 , both split keyboard portions  5039 -A and  5039 -B reduce in size (e.g., in width, height, or both width and height) in UI  5000 KKK, as shown in FIG.  5 KKK, and the keys in split keyboard portions  5039 -A and  5039 -B rescale in accordance with the size reduction of split keyboard portions  5039 -A and  5039 -B, respectively. Center area  5039 -C also increases in size as a result. 
     FIG.  5 LLL depicts UI  5000 LLL, which shows gesture  5188  being detected on display  112  while in the reconfiguration mode, in some other embodiments. Gesture  5188  includes a left thumb contact moving away from the left edge of display  112 . In response to detection of gesture  5188 , both split keyboard portions  5039 -A and  5039 -B increase in size (e.g., in width, height, or both width and height) in UI  5000 MMM, as shown in FIG.  5 MMM, and the keys in split keyboard portions  5039 -A and  5039 -B rescale in accordance with the size increase of split keyboard portions  5039 -A and  5039 -B, respectively. Center area  5039 -C also decreases in size as a result. 
     FIG.  5 NNN depicts UI  5000 NNN, where gesture  5190  is detected on display  112 . In some embodiments, gesture  5190  is a two-thumb tap gesture, with one thumb on location  5190 -A over split keyboard portion  5039 -A and the other thumb on location  5190 -B over split keyboard portion  5039 -B. In response to detection of gesture  5190 , device  100  exits the reconfiguration mode for integrated input area  5039 . 
     It should be appreciated that, while the details of FIGS.  5 A and  5 NNN were described in the context of display  112  in portrait orientation, the details of FIGS.  5 A- 5 NNN also apply in an analogous manner to a display (e.g., display  112 ) in landscape orientation. 
       FIGS. 6A-6B  are flow diagrams illustrating a method  600  of replacing an unsplit keyboard with an integrated input area in accordance with some embodiments. The method  600  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a display and a touch-sensitive surface. In some embodiments, the display is a touch screen display and the touch-sensitive surface is on the display. In some embodiments, the display is separate from the touch-sensitive surface. Some operations in method  600  may be combined and/or the order of some operations may be changed. 
     As described below, the method  600  provides an intuitive way to replace an unsplit keyboard with an integrated input area for text entry. The method is particularly useful when a user is typing with a tablet computer and wants to change from using an unsplit keyboard (e.g., for ten-finger typing when the tablet computer is resting on a solid surface) to using an integrated input area with a split keyboard (e.g., for two-thumb typing when the tablet computer is being held by the user&#39;s remaining eight fingers) or vice versa. The method reduces the cognitive burden on a user when manipulating soft keyboards, thereby creating a more efficient human-machine interface. For battery-operated electronic devices, enabling a user to manipulate a soft keyboard faster and more efficiently conserves power and increases the time between battery charges. 
     The device concurrently displays ( 602 ) a first text entry area (e.g., in an application content area) and an unsplit keyboard (e.g. a single, unitary, or merged keyboard that includes character keys from the left and right sides of a split keyboard) on the display.  FIG. 5A , for example, shows text entry area  5002  and unsplit soft keyboard  5008  being displayed concurrently on display  112 . 
     The device detects ( 604 ) a gesture on the touch-sensitive surface. For example, in  FIG. 5A , gesture  5010  or  5014  is detected on display  112 , which is a touch screen. 
     In some embodiments, the gesture is ( 606 ) a multifinger (i.e., more than one finger) depinch gesture at a location on the touch-sensitive surface that corresponds to the location of the unsplit keyboard on the display. For example, in  FIG. 5A , gesture  5010  is a two-finger depinch gesture on unsplit soft keyboard  5008 . In some embodiments, the two-finger depinch gesture requires symmetric horizontal movement (or movement within a predetermined angle of horizontal, such as 5°, 10°, 15° or 20°) on the touch-sensitive surface. Requiring symmetric horizontal movement helps filter out anchored depinch gestures where only one touch moves, non-horizontal depinch gestures, and other gestures that may not be intended to replace the unsplit keyboard with an integrated input area. 
     In some embodiments, the gesture is ( 608 ) a tap gesture on a keyboard selection icon (e.g., a finger tap gesture on an icon that toggles between the unsplit keyboard, the integrated input area, and possibly other types of keyboard input areas; a finger tap gesture on an icon that activates replacement of the unsplit keyboard with the integrated input area). For example, in  FIG. 5A , gesture  5014  is a tap gesture on keyboard split key  5012 , which shows an icon of two halves moving apart in a split. 
     In response to detecting the gesture on the touch-sensitive surface, the device replaces ( 610 ) the unsplit keyboard with an integrated input area. The integrated input area includes a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion. For example, in  FIGS. 5A-5C , in response to detection of gesture  5010 , unsplit soft keyboard  5008  is replaced with integrated input area  5016 . Integrated input area  5016  includes left split keyboard portion  5016 -A, right split keyboard portion  5016 -B, and center area  5016 -C situated between the left and right portions  5016 -A,  5016 -B. 
     In some embodiments, the width of the integrated input area is the same (or substantially the same, e.g., 90% or 95%) as the width of the display. This width makes the left side of the split keyboard more accessible to the left thumb of a user. Similarly, this width makes the right side of the split keyboard more accessible to the right thumb of a user. 
     In some embodiments, the integrated input area is visually distinguished from other user interface elements in the display, for example by providing the left portion, center portion, and right portion of the integrated input area with a common distinct shading, background color or pattern, and/or by providing a distinctive border around the left portion, center portion, and right portion of the integrated input area. 
     In some embodiments, the integrated input area includes a second text entry area ( 612 ). The second text entry area typically displays a duplicate portion of the first text entry area, such as an area near the cursor in first text entry area. For example, the second text entry area may contain a duplicate of the cursor/insertion point in the first text entry area and one or more words from the most recent text entered by the user adjacent to the cursor/insertion point. For example, integrated input area  5016  includes center area  5016 -C. Center area  5016 -C displays duplicate input text  5022 , making center area  5016 -C a second text entry area to the first text entry area  5002 . 
     In some embodiment, the first text entry area displays ( 614 ) text at a first size, and the second text entry area displays a portion of the text in the first text entry area at a second size that is larger than the first size. For example, in  FIG. 5C , duplicate text input  5022  is displayed in center area  5016 -C at a larger size than input text  5006  in text entry area  5002 . 
     In some embodiments, while displaying the integrated input area, the device detects ( 616 ) a gesture (e.g., a tap gesture  5026  on the “T” key  5024 ,  FIG. 5D ) at a location on the touch-sensitive surface that corresponds to a location of a character key in the split keyboard. In response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the location of the character key in the split keyboard, the device inputs and concurrently displays ( 618 ) the corresponding character in the first text entry area and the second text entry area on the display. For example, in  FIG. 5D , in response to detection of gesture  5026 , a character “t” is entered into input text  5006  and duplicate input text  5022 . 
     In some embodiments, replacing the unsplit keyboard with the integrated input area includes displaying ( 620 ) an animation that transitions the unsplit keyboard to the integrated input area. For example,  FIG. 5B  shows an instant in a transition animation from unsplit soft keyboard  5008  to integrated input area  5016 . 
     In some embodiments, the transition for each character key is a linear interpolation between two states, the unsplit (or merged) state and the split state. In some embodiments, at least one character key is duplicated during the transition so that the left portion of the split keyboard and the right portion of the split keyboard contain at least one common character key (e.g., the “g” keys  5019 -A and  5019 -B in  FIG. 5C ). In some embodiments, some keys in the unsplit keyboard are not displayed in the split keyboard (e.g., hide keyboard key  5009  in the unsplit keyboard ( FIG. 5A ) is not displayed in the split keyboard ( FIG. 5C )). In some embodiments, during the animated transition to the integrated input area, keys that are not displayed in the split keyboard appear to be pushed off-screen as they fade to zero opacity during the transition. 
     In some embodiments, while displaying the integrated input area, the device detects ( 622 ) a second gesture on the touch-sensitive surface (e.g., a gesture  5028  or  5032  on display  112 ,  FIG. 5E ). 
     In some embodiments, the second gesture is ( 624 ) a multifinger (i.e., more than one finger) pinch gesture at a location on the touch-sensitive surface that corresponds to the location of the integrated input area on the display. For example, in  FIG. 5E , gesture  5028  is a two-finger pinch gesture on display  112 . In some embodiments, the two-finger pinch gesture requires symmetric horizontal movement (or movement within a predetermined angle of horizontal, such as 5°, 10°, 15° or 20°) on the touch-sensitive surface. Requiring symmetric horizontal movement helps filter out anchored pinch gestures where only one touch moves, non-horizontal pinch gestures, and other gestures that may not be intended to replace the integrated input area with the unsplit keyboard. 
     In some embodiments, the second gesture is ( 626 ) a tap gesture on a keyboard selection icon (e.g., a finger tap gesture on an icon that toggles between the unsplit keyboard, the integrated input area, and possibly other types of keyboard input areas; a finger tap gesture on an icon that activates replacement of the unsplit keyboard with the integrated input area). For example, in  FIG. 5E , gesture  5032  is a tap gesture on keyboard unsplit key  5018 , which shows an icon of two halves merging together. 
     In response to detecting the second gesture on the touch-sensitive surface, the device replaces ( 628 ) the integrated input area with the unsplit keyboard. For example, in  FIGS. 5E-5G , in response to gesture  5028  or  5032 , integrated input area  5016  is replaced with unsplit keyboard  5008 . 
     In some embodiments, replacing the integrated input area with the unsplit keyboard includes displaying ( 630 ) an animation that transitions the integrated input area to the unsplit keyboard. For example,  FIG. 5F  shows an instant in a transition animation from integrated input area  5016  to unsplit soft keyboard  5008 . 
     In some embodiments, the electronic device is ( 632 ) a portable electronic device (e.g., a tablet computer such as the iPad® device from Apple Inc. of Cupertino, Calif.). For example, device  100  or  300  may be a portable tablet computer. 
     In some embodiments, the display is ( 634 ) a touch-sensitive display that includes the touch-sensitive surface. For example, display  112  is a touch screen. 
     Details in method  600  apply to the methods described below, and are omitted for brevity. 
       FIGS. 7A-7B  are flow diagrams illustrating a method  700  of responding to a keyboard selection gesture in accordance with some embodiments. The method  700  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a display and a touch-sensitive surface. In some embodiments, the display is a touch screen display and the touch-sensitive surface is on the display. In some embodiments, the display is separate from the touch-sensitive surface. Some operations in method  700  may be combined and/or the order of some operations may be changed. 
     As described below, the method  700  provides a way to prevent accidentally changing soft keyboards while typing (e.g., from an unsplit keyboard to an integrated input area with a split keyboard, or vice versa). The method reduces the cognitive burden on a user when manipulating and using soft keyboards, thereby creating a more efficient human-machine interface. For battery-operated electronic devices, enabling a user to manipulate and use soft keyboards faster and more efficiently conserves power and increases the time between battery charges. 
     The device displays ( 702 ) a first keyboard on the display, the first keyboard comprising a first plurality of keys (e.g. a split keyboard or, conversely, a single, unitary, or merged keyboard that includes character keys from the left and right portions of the split keyboard). For example, in  FIG. 5H , unsplit keyboard  5008  is displayed. Unsplit keyboard  5008  includes a plurality of letter keys, an example of which is “T” key  5036 . 
     The device detects ( 704 ) a key activation gesture at a first time at a location on the touch-sensitive surface that corresponds to a location of a first key in the first keyboard (e.g., a tap gesture  5038  on the “T” key  5036 ,  FIG. 5H ). 
     In response to detecting the key activation gesture at the first time, the device activates ( 706 ) the first key (e.g., entering a character that corresponds to the first key or performing an action that corresponds to the first key). For example, in  FIGS. 5H-5I , in response to gesture  5038  on “T” key  536 , a character “t” is entered into input text  5006 . 
     In some embodiments, in response to detecting the key activation gesture at the first time, the device disables ( 708 ) a gesture recognizer for the keyboard selection gesture for the predefined period of time. For example, in  FIG. 5H , in response to detection of gesture  5038 , the device disables a gesture recognizer for the keyboard selection gesture for the predefined period of time. 
     The device detects ( 710 ) one or more contacts on the touch-sensitive surface at a second time after the first time, the one or more contacts corresponding to a keyboard selection gesture. For example, in  FIG. 5I , gesture  5010 , which includes two contacts, is detected. 
     In some embodiments, the keyboard selection gesture is ( 712 ) a multifinger gesture at a location on the touch-sensitive surface that corresponds to the location of the first keyboard on the display. For example, in  FIG. 5I , gesture  5010  is a two-finger depinch gesture on unsplit soft keyboard  5008 . 
     In response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time, the device replaces ( 714 ) the first keyboard with a second keyboard when the second time exceeds a predefined period of time after the first time. 
     In some embodiments, replacing the first keyboard with the second keyboard includes displaying ( 716 ) an animation that transitions the first keyboard to the second keyboard. For example,  FIG. 5J  shows an instant in a transition animation from unsplit soft keyboard  5008  to integrated input area  5016 . 
     In some embodiments, although the contacts that correspond to a keyboard selection gesture are detected on the touch-sensitive surface, the keyboard selection gesture is not recognized because the gesture recognizers for the keyboard selection gesture are disabled for a predefined period of time after a key activation gesture is detected. 
     In response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time, the device maintains ( 718 ) display of the first keyboard when the second time is less than the predefined period of time after the first time. 
     For example, in response to detecting a multifinger pinch gesture to select a merged keyboard when a split keyboard is currently displayed, the split keyboard is replaced by the merged keyboard if more than a predefined period of time (e.g., 0.3, 0.4, 0.5, 0.6 seconds or some other reasonable period of time) has elapsed since a key in the split keyboard was activated. But the split keyboard remains displayed if less than the predefined period of time has elapsed since a key in the split keyboard was activated, thereby preventing accidentally changing the keyboard when the user is actively typing. Conversely, in response to detecting a multifinger depinch gesture to select a split keyboard when a merged keyboard is currently displayed, the merged keyboard is replaced by the split keyboard if more than the predefined period of time has elapsed since a key in the merged keyboard was activated. But the merged keyboard remains displayed if less than the predefined period of time has elapsed since a key in the merged keyboard was activated. 
     As an example, in  FIGS. 5H-5I , if the time period from gesture  5038  to gesture  5010  exceeds the predefined period of time, then unsplit soft keyboard  5008  is replaced with split soft keyboard area  5016 , as shown in  FIG. 5K . If the time period from gesture  5038  to gesture  5010  does not exceeds the predefined period of time, then unsplit soft keyboard  5008  remains displayed. 
     In some embodiments, the electronic device is ( 720 ) a portable electronic device (e.g., a tablet computer). For example, device  100  or  300  may be a portable tablet computer. 
     In some embodiments, the display is ( 722 ) a touch-sensitive display that includes the touch-sensitive surface. For example, display  112  is a touch screen. 
       FIGS. 8A-8B  are flow diagrams illustrating a method  800  of moving an integrated input area in accordance with some embodiments. The method  800  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a display and a touch-sensitive surface. In some embodiments, the display is a touch screen display and the touch-sensitive surface is on the display. In some embodiments, the display is separate from the touch-sensitive surface. Some operations in method  800  may be combined and/or the order of some operations may be changed. 
     As described below, the method  800  provides a way to prevent accidental movement of an integrated input area when a user contact moves during typing with the split keyboard. The method reduces the cognitive burden on a user when repositioning and using an integrated input area that includes a split keyboard, thereby creating a more efficient human-machine interface. For battery-operated electronic devices, enabling a user to reposition and use a soft keyboard faster and more efficiently conserves power and increases the time between battery charges. 
     The device concurrently displays ( 802 ) a first text entry area and an integrated input area on the display, the integrated input area including: a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion. For example, in  FIG. 5L , text entry area  5002  and integrated input area  5039  are displayed on display  112 . Integrated input area  5039  includes left split keyboard portion  5039 -A, right split keyboard portion  5039 -B, and center area  5039 -C between left and right split keyboard portions  5039 -A and  5039 -B. 
     The device detects ( 804 ) a first contact on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area. For example, in  FIG. 5L , a finger contact corresponding to gesture  5040  is detected at position  5040 - 1  in center area  5039 -C. 
     The device detects ( 806 ) movement of the first contact along the touch-sensitive surface. For example, in  FIG. 5L , the finger contact in gesture  5040  moves from position  5040 - 1  to position  5040 - 2 . 
     In response to detecting movement of the first contact along the touch-sensitive surface, the device moves ( 808 ) the integrated input area in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold. For example, in  FIGS. 5L-5M , when the movement of gesture  5040  exceeds threshold  5042 , then integrated input area  5039  moves in accordance with the movement gesture  5040 . 
     The device detects ( 810 ) a second contact, distinct from the first contact, on the touch-sensitive surface at a location that corresponds to the split keyboard. For example, in  FIG. 5L , a finger contact corresponding to gesture  5044  is detected at position  5044 - 1  in right split keyboard portion  5039 -B. 
     The device detects ( 812 ) movement of the second contact along the touch-sensitive surface. For example, in  FIG. 5L , the finger contact in gesture  5044  moves from position  5044 - 1  to position  5044 - 2 . 
     In response to detecting movement of the second contact along the touch-sensitive surface, the device moves ( 814 ) the integrated input area in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold. For example, in  FIGS. 5L-5M , when the movement of gesture  5044  exceeds threshold distance  5046  (or threshold distance  5048 , depending on the implementation), then integrated input area  5039  moves in accordance with the movement gesture  5044 . 
     In some embodiments, a respective movement threshold is a function of a horizontal distance of a respective contact from a vertical centerline of the integrated input area ( 816 ). For example, in  FIG. 5N , charts  5050  and  5058  show the threshold distance as a function of distance from the centerline of integrated input area  5039 . In some embodiments, the movement threshold increases as the horizontal distance of the contact from the vertical centerline increases. For example, in  FIG. 5L , threshold distance  5046  in right soft keyboard portion  5039 -B is greater than threshold distance  5042  in center area  5039 -C. As another example. chart  5058  in  FIG. 5N  shows the threshold distance varying linearly with distance from a centerline of integrated input area  5039 . 
     In some embodiments, the integrated input area is constrained to vertical movement on the display (e.g., when the width of the integrated input area is the same (or substantially the same, e.g., 90% or 95%) as the width of the display) and the integrated input area moves in accordance with a vertical component of movement of a respective contact when a movement threshold for the respective contact is exceeded ( 818 ). For example, in  FIG. 5L-5M , even with gesture  5044  having an angular movement (and thus having a horizontal component and a vertical component), movement of integrated input area  5039  is constrained to vertical movement. The horizontal movement of gesture  5044  is ignored. 
     In some embodiments, the left side of the split keyboard and the right side of the split keyboard maintain fixed positions relative to each other within the integrated input area during movement of the integrated input area ( 820 ). For example, in  FIGS. 5L-5M , left and right split keyboard portions  5039 -A and  5039 -B remain in fixed positions relative to each other during the movement. 
       FIG. 9  is a flow diagram illustrating a method  900  of moving an input area and adjusting the size of an application content area in accordance with some embodiments. The method  900  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a display and a touch-sensitive surface. In some embodiments, the display is a touch screen display and the touch-sensitive surface is on the display. In some embodiments, the display is separate from the touch-sensitive surface. 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 a way to increase the size of an application content area (e.g., an application view or window) when an input area with a keyboard is moved from the bottom of a display. The method is particularly useful when a user is typing with a tablet computer with a limited display area because it allows for more of an application to be viewed, thereby creating a more efficient human-machine interface. For battery-operated electronic devices, enabling a user to manipulate a soft keyboard and see more of an application lets the user work faster, which conserves power and increases the time between battery charges. 
     The device concurrently displays ( 902 ) on the display an application content area with a first size and an input area with a keyboard (e.g., a split keyboard or a merged keyboard), with the input area being adjacent to and separate from the application content area with the first size and the input area being at a bottom of the display. For example, in  FIG. 5O , application content area  5062  with height  5064  and integrated input area  5039  with height  5065  are displayed. Integrated input area  5039  is docked at the bottom of display  112  and is adjacent to and separate from application content area  5062 . 
     The device detects ( 904 ) a gesture on the touch-sensitive surface (e.g., an upward flick or drag gesture at a location on the touch-sensitive surface that corresponds to the input area at the bottom of the display). For example, in  FIG. 5O , gesture  5068 , which is a dragging gesture, is detected on display  112 . 
     In response to detecting the gesture on the touch-sensitive surface, the device moves ( 906 ) the input area away from the bottom of the display over the application content area, and increases ( 908 ) the application content area to a second size larger than the first size. For example, in  FIG. 5P , in response to detection of gesture  5068 , integrated input area  5039  moves away from the bottom of display  112  and over application content area  5062 . Additionally, application content area  5062  ( FIG. 5P ) increases in size to a size with height  5066 , which is larger than the size of the application content area with height  5064  ( FIG. 5O ). 
     In some embodiments, the first size of the application content area has a first height, the second size of the application content area has a second height, the input area has an input area height, and the second height is greater than the first height by an amount equal to (or substantially equal to (e.g., up to 5% or 10% difference)) the input area height ( 910 ). For example, in  FIG. 5O , application content area  5062  has height  5064 , and integrated input area  5039  has height  5065 . In  FIG. 5P , application content area  5062  has height  5066 , which is the sum of height  5064  and height  5065 . 
     In other words, when the keyboard is “anchored” at the bottom of the screen, an application treats the keyboard as being an area with non-zero height that cannot be used to display the application content area. Thus, the application reduces the size of its application content area accordingly. But, when the keyboard is moved away from the bottom of the screen (becomes “unanchored” from the bottom of the display), the application treats the keyboard as being an area with zero height (even though the actual displayed height of the input area is non-zero) and so the application increases its content display area to use more of the display (e.g., to use all or substantially all of the display area). When unanchored, the keyboard floats over the application content area. The keyboard moves vertically in response to detecting an upward finger gesture. The keyboard may move with inertia if the velocity upon liftoff of the finger is above a predefined threshold. 
       FIGS. 10A-10B  are flow diagrams illustrating a method  1000  of entering characters with a split soft keyboard in accordance with some embodiments. The method  1000  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a display and a touch-sensitive surface. In some embodiments, the display is a touch screen display and the touch-sensitive surface is on the display. In some embodiments, the display is separate from the touch-sensitive surface. Some operations in method  900  may be combined and/or the order of some operations may be changed. 
     As described below, the method  1000  makes two-thumb typing with a split keyboard (e.g., on a tablet computer that is being held by the user&#39;s remaining eight fingers) faster and more efficient by letting a user easily activate certain keys on the right side of a split keyboard with a left thumb (and conversely, letting a user easily activate certain keys on the left side of a split keyboard with a right thumb), thereby creating a more efficient human-machine interface. For battery-operated electronic devices, enabling a two-thumb typist to enter characters in a split soft keyboard faster and more efficiently conserves power and increases the time between battery charges. 
     The device concurrently displays ( 1002 ) a text entry area, a left side of a split keyboard, and a right side of a split keyboard, with the left side of the split keyboard including a plurality of rows of keys and the right side of the split keyboard including a corresponding plurality of rows of keys. A row of keys on the left side of the split keyboard and a row of keys on the right side of the keyboard are corresponding if the rows belong in the same row in the unsplit keyboard corresponding to the split keyboard. 
     For example, in  FIG. 5Q , text entry area  5002  and split soft keyboard  5069  are displayed. Split soft keyboard  5069  includes left split keyboard portion  5069 -A and right split keyboard portion  5069 -B. Split soft keyboard  5069  includes letter keys arranged in accordance with the QWERTY layout. In left portion  5069 -A, the top row of letter keys includes “Q,” “W,” “E,” “R,” and “T” keys. The middle row of letter keys includes “A,” “S,” “D,” and “F” keys. The lower row of letter keys includes “Z,” “X,” “C,” and “V” keys. In right portion  5069 -B, the top row of letter keys include “Y,” “U,” “I,” “O,” and “P” keys. The middle row of letter keys includes “G,” “H,” “J,” “K,” and “L” keys. The lower row of letter keys includes “B,” “N,” and “M” keys. The row with “Q,” “W,” “E,” “R,” and “T” keys on left portion  5069 -A and the row with “Y,” “U,” “I,” “O,” and “P” keys on right portion  5069 -B are corresponding because these rows belong to the same top row in an unsplit QWERTY keyboard. Similarly, the row with “A,” “S,” “D,” and “F” keys correspond to the row with “G,” “H,” “J,” “K,” and “L” keys, and the row with “Z,” “X,” “C,” and “V” keys correspond to the row with “B,” “N,” and “M” keys. On the other hand, the row with “Q,” “W,” “E,” “R,” and “T” keys on left portion  5069 -A does not correspond to the row with “G,” “H,” “J,” “K,” and “L” keys or to the row with “B,” “N,” and “M” keys in right portion  5069 -B because they do not belong to the same row in an unsplit QWERTY keyboard. 
     The device ( 1004 ) detects a gesture at a location on the touch-sensitive surface that corresponds to a predefined area adjacent to and to the right of a rightmost key in a respective row of the left side of the split keyboard. For example, in  FIG. 5R , gesture  5098  is detected on predefined key activation area  5086 , which is to the right of “V” key  5074  in the lower row of letter keys in left split keyboard portion  5069 -A. 
     In some embodiments, the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard is an undisplayed key activation area that corresponds to the leftmost key in the corresponding respective row of the right side of the split keyboard ( 1006 ). For example, in  FIG. 5Q , key activation areas  5082 ,  5084 , and  5086 , which are adjacent to and to right of keys  5070 ,  5072 , and  5074 , respectively, correspond to keys  5076 ,  5078 , and  5080 , respectively. 
     In response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard, the device enters ( 1008 ) in the text entry area a character that corresponds to a leftmost key in a corresponding respective row of the right side of the split keyboard. For example, in  FIGS. 5R-5S , in response to detection of gesture  5098 , a character “b” is entered into input text  5006 , as key activation area  5086  corresponds to “B” key  5080  in right split keyboard portion  5069 -B; “B” key  5080  is the leftmost key in the corresponding row in right split keyboard portion  5069 -B. 
     If the leftmost key in the corresponding respective row of the right side of the split keyboard is a duplicate of the rightmost key in the respective row of the left side of the split keyboard, then the key adjacent to and to the right of the leftmost key in the corresponding respective row of the right side of the split keyboard is entered instead. For example, returning to the lower rows of letter keys in left and right split keyboard portions  5069 -A and  5069 -B in  FIG. 5Q , if undisplayed key activation area  5092  corresponding to “V” key  5074  is instead a displayed duplicate “V” key, then in response to detection of a gesture on key activation area  5086  to the right of the rightmost “V” key  5074  in the lower row in left portion  5069 -A, a character “b” (corresponding to “B” key  5080 ) is entered instead of a character “v” corresponding to the duplicate “V” key. 
     In some embodiments, the device detects ( 1010 ) a gesture at a location on the touch-sensitive surface that corresponds to a predefined area adjacent to and to the left of a leftmost key in a respective row of the right side of the split keyboard. For example, in  FIG. 5T , gesture  5100  is detected on predefined key activation area  5088 , which is to the left of the rightmost “Y” key in the top row of letter keys in right split keyboard portion  5069 -B. 
     In some embodiments, the predefined area adjacent to and to the left of the leftmost key in the respective row of the right side of the split keyboard is an undisplayed key activation area that corresponds to the rightmost key in the corresponding respective row of the left side of the split keyboard ( 1012 ). For example, in  FIG. 5Q , key activation areas  5088 ,  5090 , and  5092 , which are adjacent to and to left of keys  5076 ,  5078 , and  5080 , respectively, correspond to keys  5070 ,  5072 , and  5074 , respectively. 
     In response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the predefined area adjacent to and to the left of the leftmost key in the respective row of the right side of the split keyboard, the device enters ( 1014 ) in the text entry area a character that corresponds to a rightmost key in a corresponding respective row of the left side of the split keyboard. For example, in  FIGS. 5T-5U , in response to detection of gesture  5100 , a character “t” is entered into input text  5006 , as key activation area  5088  corresponds to “T” key  5070  in left split keyboard portion  5069 -A; “T” key  5070  is the rightmost key in the corresponding row in left split keyboard portion  5069 -B. 
     If the rightmost key in the corresponding respective row of the left side of the split keyboard is a duplicate of the leftmost key in the respective row of the right side of the split keyboard, then the key adjacent to and to the left of the rightmost key in the corresponding respective row of the left side of the split keyboard is entered instead. For example, in the middle rows of letter keys in left and right split keyboard portions  5069 -A and  5069 -B in  FIG. 5Q , if undisplayed key activation area  5084  corresponding to “G” key  5078  is instead a displayed duplicate “G” key, then in response to detection of a gesture on key activation area  5090  to the left of the leftmost “G” key  5078  in the middle row in right portion  5069 -B, a character “f” (corresponding to “F” key  5072 ) is entered instead of a character “g” corresponding to the duplicate “G” key. 
     In some embodiments, prior to detecting the gesture, the device detects ( 1016 ) a key activation gesture at a first time at a location on the touch-sensitive surface that corresponds to a location of a visible key in the split keyboard. For example, in  FIGS. 5Q-5R , prior to detection of gesture  5098 , gesture  5096  is detected on “O” key  5094 . A character “o” is entered into input text  5006  in response to detection of gesture  5096 . 
     In response to detecting the gesture at a second time after the first time, the device enters ( 1018 ) in the text entry area the character that corresponds to the leftmost key in the corresponding respective row of the right side of the split keyboard when the second time is less than a predefined period of time after the first time, but the device foregoes ( 1020 ) entering in the text entry area the character that corresponds to the leftmost key in the corresponding respective row of the right side of the split keyboard when the second time exceeds the predefined period of time after the first time. In some embodiments, the undisplayed keys areas are only activatable when the user is actively typing, as determined by detecting activation of visible keys in the split keyboard within a predefined period of time (e.g., 0.5, 1.0, or 2.0 seconds or some other reasonable period of time) of detecting the gesture in the undisplayed key area. When the gesture in the undisplayed key area is detected after the predefined period of time has elapsed since detecting activation of a visible key, the character corresponding to the undisplayed key is not entered. This prevents accidental text entry of characters that correspond to the undisplayed key areas when the user is not actively typing. 
     For example, if the time period between when gesture  5096  is detected and when gesture  5098  is detected is less than a predefined period of time, then a character “b” is entered in response to gesture  5098 . On the other hand, if the time period between when gesture  5096  is detected and when gesture  5098  is detected is more than the predefined period of time, then the character “b” is not entered in response to gesture  5098 . 
       FIGS. 11A-11D  are flow diagrams illustrating a method  1100  of using a center portion of an integrated input area in accordance with some embodiments. The method  1100  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a display and a touch-sensitive surface. In some embodiments, the display is a touch screen display and the touch-sensitive surface is on the display. In some embodiments, the display is separate from the touch-sensitive surface. 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 a way to use the center portion of an integrated input area to make character entry faster and more efficient. The method is particularly useful when a user is performing two-thumb typing with a tablet computer. The method makes additional character entry functions readily accessible to the user&#39;s thumbs, thereby creating a more efficient human-machine interface. For battery-operated electronic devices, enabling a user to perform character entry faster and more efficiently conserves power and increases the time between battery charges. 
     The device concurrently displays ( 1102 ) a first text entry area and an integrated input area, the integrated input area including a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion with a second text entry area, the center portion in between the left portion and the right portion. For example, in  FIG. 5V , text entry area  5002  and integrated input area  5016  are displayed on display  112 . Integrated input area  5016  includes left split keyboard portion  5016 -A, right split keyboard portion  5016 -B, and center area  5016 -C between left and right portions  5016 -A and  5016 -B. Center area  5016 -C serves as a second text entry area, as duplicate cursor  5020  and duplicate input text  5022  are displayed in center area  5016 -C. 
     The device detects ( 1104 ) a gesture at a location on the touch-sensitive surface that corresponds to a location of a character key in the split keyboard (e.g., a tap gesture  5102  on “T” key  5024  key on left portion  5016 -A,  FIG. 5V ). 
     In response to detecting the gesture at the location on the touch-sensitive surface that corresponds to the location of the character key in the split keyboard, the device inputs and concurrently displays ( 1106 ) the corresponding character in the first text entry area and the second text entry area on the display. In  FIG. 5W , in response to detection of gesture  5102  on “T” key  5024 , a character “t” is entered into input text  5006  and concurrently displayed. A character “t” is also entered into duplicate input text  5022  and concurrently displayed in center area  5016 -C. Having a second text entry area in the center portion of the integrated input area that shows a portion of the text being entered in the first text entry area makes text input faster, more efficient, and less stressful by reducing the amount of eye movement when a user is thumb typing with the split keyboard. 
     In some embodiments, the first text entry area displays text at a first size, and the second text entry area displays a portion of the text in the first text entry area at a second size that is larger than the first size ( 1108 ). For example, in  FIG. 5V , duplicate text input  5022  is displayed in center area  5016 -C at a larger size than input text  5006  in text entry area  5002 . 
     In some embodiments, the width of the integrated input area is the same (or substantially the same, e.g., 90% or 95%) as the width of the display ( 1110 ). Integrated input area  5016  in  FIG. 5V , for example, has a width that spans the width of display  112 . 
     In some embodiments, the left side of the split keyboard and the right side of the split keyboard maintain fixed positions relative to each other within the integrated input area during movement of the integrated input area ( 1112 ). Having the left and right portions maintain fixed positions relative to each other keeps the left and right portions at relative positions on the display that are more familiar to the use, and thus less cognitive readjustment is needed on the part of the user to maintain typing efficiency. 
     For example,  FIG. 5M  shows integrated input area  5039  moving in response to detection of a gesture (e.g., gesture  5040 ). Within integrated input area  5039 , left portion  5039 -A and right portion  5039 -B maintain fixed positions relative to each other during the movement. Integrated input areas  5039  and  5016  are similar, and thus when integrated input area  5016  moves, left and right portions  5016 -A and  5016 -B maintain fixed positions relative to each other. 
     In some embodiments, the second text entry area includes an insertion point that remains stationary on the display as text is entered ( 1114 ). A stationary insertion point in the second text entry area provides a stable focal point for the user that helps reduce lateral eye movement. For example, in  FIG. 5X-5Y , duplicate cursor  5020  is stationary within center area  5016 -C; when the position of duplicate  5020  relative to duplicate input text  5022  changes, duplicate input text  5022  is displayed as advancing or retreating relative to duplicate cursor  5020 . 
     In some embodiments, the second text entry area includes an insertion point ( 1116 ). The device detects ( 1118 ) a gesture on the touch-sensitive surface at a location that corresponds to the insertion point in the second text entry area, and moves ( 1120 ) the insertion point in the second text entry area in accordance with the gesture on the touch-sensitive surface at the location that corresponds to the insertion point in the second text entry area. The insertion point in the first text entry area is also moved in accordance with the gesture on the touch-sensitive surface at the location that corresponds to the insertion point in the second text entry area. For example, a leftward swipe moves the insertion point to the beginning of a word, while a rightward swipe moves the insertion point to the end of a word. Adjusting the insertion point via gestures in the second text entry area has the advantage of requiring the user to move their thumb only a small distance from where they are typing (versus the alternative of reaching to the first text entry area (or a menu bar at the top of the display) each time an adjustment is needed. 
     For example, in  FIG. 5X-5Y , gesture  5102 , moving in direction  5103 , is detected on duplicate cursor  5020  in center area  5016 -C. In response to detection of gesture  5102 , duplicate cursor  5020  changes position relative to duplicate input text  5022  within center area  5016 -C in accordance with gesture  5102  (and cursor  5004  does the same relative to input text  5006 ). 
     In some embodiments, the device displays ( 1122 ) text editing controls (e.g., icons, or graphical or user interface objects for selecting, cutting, copying, and/or pasting text) in the center portion of the integrated input area. In some embodiments, the text editing controls in the center portion of the integrated input area have corresponding text editing controls in the first text entry area ( 1124 ). For example, the text editing controls in the center portion may be duplicates of text editing controls in the first text entry area. For example, in  FIG. 5Z , text editing control  5104 , corresponding to text editing control  5106 , is displayed in text entry area  5002 . In some embodiments, the device detects ( 1126 ) a gesture on the touch-sensitive surface at a location that corresponds to a text editing control in the center portion of the integrated input area, and executes ( 1128 ) a text editing command in accordance with the gesture on the touch-sensitive surface at the location that corresponds to the text editing control. Editing the text via gestures in the center portion of the integrated input area has the advantage of requiring the user to move their thumb only a small distance from where they are typing (versus the alternative of reaching to the first text entry area (or a menu bar at the top of the display) each time an edit function is needed. 
     For example, in FIG.  5 Z- 5 AA, text editing control  5106  corresponding to a paste operation is displayed in center area  5016 -C. Gesture  5108  on text editing control  5106  is detected in center area  516 -C. In response to detection of gesture  5108 , a paste operation is executed; text “ahead” is pasted into duplicate text  5022  and input text  5006 . 
     In some embodiments, the device displays ( 1130 ) user-selectable input elements (e.g., radio buttons, check boxes, pick lists, time pickers, and/or date pickers) in the center portion of the integrated input area, detects ( 1132 ) a gesture on the touch-sensitive surface at a location that corresponds to a user-selectable input element in the center portion of the integrated input area, and, in response to detecting the gesture on the touch-sensitive surface at the location that corresponds to the user-selectable input element, selects ( 1134 ) the user-selectable input element. Selecting radio buttons, check boxes, items in pick lists, times and dates via gestures in the center portion of the integrated input area has the advantage of requiring the user to move their thumb only a small distance from where they are typing each time a selection is needed. 
     For example, in FIG.  5 BB- 5 CC, form  5110  is displayed in text entry area  5002 . Form  5110  includes checkboxes  5112 , each respective checkbox corresponding to an option in the form. At least some of checkboxes  5112  are displayed in center area  5016 -C as duplicate checkboxes  5116 . Gesture  5118  is detected on duplicate checkbox  5116 -A in center area  5016 -C. In response to detection of gesture  5118 , checkbox  5116 -A is selected. 
     In some embodiments, the device detects ( 1136 ) a gesture on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area (e.g., a tap gesture on an icon to activate a popup menu or a predefined multifinger gesture within the center portion), and, in response to detecting the gesture on the touch-sensitive surface at the location that corresponds to the center portion of the integrated input area, displays ( 1138 ) a popup view. Accessing a popup view (e.g., a window or menu in an application) via a gesture in the center portion of the integrated input area has the advantage of requiring the user to move their thumb only a small distance from where they are typing (versus the alternative of reaching to the first text entry area (or a menu bar at the top of the display) each time a popup view is needed. 
     For example, in FIGS.  5 DD- 5 EE, gesture  5120  is detected in center area  5016 -C. In response to detection of gesture  5120 , popup menu  5124  is displayed. In some embodiments, popup menu  5122 , corresponding to popup menu  5124 , is displayed in text entry area  5002 . 
     In some embodiments, the device detects ( 1140 ) a plurality of gestures on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area (e.g., a series of finger strokes and taps that correspond to Chinese, Japanese, Korean, or other characters), and enters ( 1142 ) in the first text entry area and the second text entry area a character that corresponds to the plurality of gestures. Exemplary characters include alphabetic characters, numeric characters, symbols, punctuation characters, Arabic script characters, Cyrillic characters, Greek characters, emoji symbols, emoticon symbols, Asian characters such as sinographs, Japanese Kanji, katakana, or hiragana, etc., Devanagari characters, Perso-Arabic characters, Gurmukhi characters, and Hebrew characters. Drawing characters via gestures in the center portion of the integrated input area has the advantage of requiring the user to move their finger only a small distance from where they are typing. 
     For example, in FIGS.  5 FF- 5 GG, one or more gestures  5128  corresponding to handwriting  5126  are detected in center area  5016 -C. Character “ ” corresponding to handwriting  5126  is entered into input text  5006  and duplicate input text  5022 . 
     In some embodiments, the device detects ( 1144 ) a plurality of gestures on the touch-sensitive surface at a location that corresponds to the center portion of the integrated input area (e.g., a series of finger strokes and taps that correspond to a simple drawing), and makes ( 1146 ) a drawing in accordance with the plurality of gestures. Drawing via gestures in the center portion of the integrated input area has the advantage of requiring the user to move their finger only a small distance from where they are typing. 
     For example, in FIGS.  5 HH- 5 II, one or more gestures  5132  corresponding to drawing  5130  are detected in center area  5016 -C. Drawing  5133 , corresponding to drawing  5130  is entered into input text  5006 . 
     In some embodiments, the device displays ( 1148 ) a suggested word in the center portion of the integrated input area (e.g., a word automatically suggested to complete or correct a series of characters displayed in the first text entry area and the second text entry area), detects ( 1150 ) a gesture on the touch-sensitive surface at a location that corresponds to the suggested word, and executes ( 1152 ) a text editing command in accordance with the gesture on the touch-sensitive surface at the location that corresponds to the suggested word. In some embodiments, tapping the suggested word accepts and inputs the suggested word. In some embodiments, tapping the suggested word (or an X icon) rejects and terminates display of the suggested word. Editing the text via gestures in the center portion of the integrated input area has the advantage of requiring the user to move their thumb only a small distance from where they are typing (versus the alternative of reaching to the first text entry area (or a menu bar at the top of the display) each time an edit function is needed. 
     For example, in FIGS.  5 JJ- 5 KK, suggested word  5134  is displayed in text entry area  5002 , and duplicate suggested word  5136 , corresponding to suggested word  5134 , is displayed in center area  5016 -C. Suggested word  5136  is displayed with X icon  5137 . Gesture  5138  is detected on X icon  5137  associated with suggested word  5136 . In response to detection of gesture  5138 , suggested word  5136  is rejected and display of suggested word  5136  and suggested word  5134  are terminated. 
     In some embodiments, the device displays ( 1154 ) a plurality of emoji characters in the center portion of the integrated input area, detects ( 1156 ) a gesture on the touch-sensitive surface at a location that corresponds to an emoji character in the plurality of emoji characters (e.g., a tap gesture on the emoji character), and, in response to detecting the gesture on the touch-sensitive surface at the location that corresponds to the emoji character, inputs and displays ( 1158 ) the emoji character in the first text entry area and the second text entry area on the display. Entering emoji characters via gestures in the center portion of the integrated input area has the advantage of requiring the user to move their thumb only a small distance from where they are typing (versus the alternative of reaching to the first text entry area (or a menu bar at the top of the display) each time an emoji character is needed. 
     For example, in FIGS.  5 LL- 5 MM, emoji characters  5140 , including emoji character  5140 -A, are displayed in text entry area  5002 . Duplicate emoji characters  5142  are displayed in center area  5016 -C. Duplicate emoji character  5142 -A is a duplicate of emoji character  5140 -A. Gesture  5144  is detected on duplicate emoji character  5142 -A. In response to detection of gesture  5144 , emoji character  5140 -A is entered into input text  5006  and displayed, and duplicate emoji character  5142 -A is entered into duplicate input text  5022  and displayed. 
     In some embodiments, the device displays ( 1160 ) a plurality of unicode characters in the center portion of the integrated input area, detects ( 1162 ) a gesture on the touch-sensitive surface at a location that corresponds to a unicode character in the plurality of unicode characters (e.g., a tap gesture on the unicode character), and, in response to detecting the gesture on the touch-sensitive surface at the location that corresponds to the unicode character, inputs and displays ( 1164 ) the unicode character in the first text entry area and the second text entry area on the display. Entering unicode characters via gestures in the center portion of the integrated input area has the advantage of requiring the user to move their thumb only a small distance from where they are typing (versus the alternative of reaching to the first text entry area (or a menu bar at the top of the display) each time a unicode character is needed. 
     For example, in FIGS.  5 NN- 5 OO, unicode characters  5146 , including unicode character  5146 -A, are displayed in text entry area  5002 . Duplicate unicode characters  5148  are displayed in center area  5016 -C. Duplicate unicode character  5148 -A is a duplicate of unicode character  5146 -A. Gesture  5149  is detected on duplicate unicode character  5148 -A. In response to detection of gesture  5149 , unicode character  5146 -A is entered into input text  5006  and displayed, and duplicate unicode character  5148 -A is entered into duplicate input text  5022  and displayed. 
     In some embodiments, the device detects ( 1166 ) a gesture on the touch-sensitive surface at a location that corresponds to the second text entry area (e.g., a tap and drag gesture over text in the second text entry area), and, in response to detecting the gesture on the touch-sensitive surface at the location that corresponds to the second text entry area, selects ( 1168 ) a range of text. Selecting text via gestures in the center portion of the integrated input area has the advantage of requiring the user to move their thumb only a small distance from where they are typing. 
     For example, in FIGS.  5 PP- 5 QQ, gesture  5150  is detected over duplicate input text  5022  in center area  5016 -C. Gesture  5150  includes a tap and drag gesture from position  5150 -A to position  5150 -B. In response to gesture  5150 , duplicate input text  5022  is selected, as indicated by highlighting  5154 . 
     In some embodiments, the device detects ( 1170 ) a gesture on the touch-sensitive surface at a location that corresponds to one or more words in the second text entry area (e.g., a swipe or double-tap gesture on a word in the second text entry area), and, in response to detecting the gesture on the touch-sensitive surface at the location that corresponds to the second text entry area, formats ( 1172 ) the one or more words. Formatting text via gestures in the center portion of the integrated input area has the advantage of requiring the user to move their thumb only a small distance from where they are typing. 
     For example, in FIGS.  5 RR- 5 SS, gesture  5156  is detected on word “gotten” in duplicate input text  5022 , in center area  5016 -C. In response to detection of gesture  5156 , the word “gotten” in duplicate input text  5022  and the corresponding word in input text  5006  are formatted as bold text. 
     In some embodiments, input elements in the center portion of the integrated input area are user-configurable (e.g., via a tool bar or settings menu) ( 1174 ). The various features described above with respect to the center portion (e.g., character handwriting, drawing, selecting user selectable elements, text editing operations, etc.) may be selectively enabled by a user. For example, in FIG.  5 TT, an options page showing  5158  showing the available input elements for center area  5016 -C is displayed. Options page  5158  includes input element options for center area  5016 -C and corresponding checkboxes for enabling or disabling those options. 
       FIGS. 12A-12B  are flow diagrams illustrating a method  1200  of moving an input area that includes a keyboard over an application content area in accordance with some embodiments. The method  1200  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a display and a touch-sensitive surface. In some embodiments, the display is a touch screen display and the touch-sensitive surface is on the display. In some embodiments, the display is separate from the touch-sensitive surface. 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 a way to use an imprecise flick gesture to precisely and automatically place a soft keyboard just below a text entry area in an application. The method reduces the cognitive burden on a user when positioning and using a soft keyboard, thereby creating a more efficient human-machine interface. For battery-operated electronic devices, enabling a user to manipulate a soft keyboard faster and more efficiently conserves power and increases the time between battery charges. 
     The device concurrently displays ( 1202 ) on the display an application content area that includes one or more text entry areas and an input area with a keyboard (e.g., a merged keyboard or an integrated input area with a split keyboard) that is displayed over the application content area. FIG.  5 UU, for example, shows application content area  5160  displayed on display  112 . Text entry areas  5162  are displayed in application content area  5160 . Soft keyboard  5164  is also displayed on display  112 . 
     The device detects ( 1204 ) a drag gesture on the touch-sensitive surface at a location that corresponds to the input area on the display. For example, in FIG.  5 UU, drag gesture  5166  is detected on display  112 . Drag gesture  5166  starts from position  5166 - 1 , which is located in soft keyboard  5164 . 
     The device, in response to detecting the drag gesture, moves ( 1206 ) the input area on the display in accordance with the drag gesture. In response to detection of drag gesture  5166 , soft keyboard  5164  is moved in accordance with drag gesture  5166 , as shown in FIG.  5 VV. 
     The device detects ( 1208 ) a flick gesture on the touch-sensitive surface at a location that corresponds to the input area on the display. For example, in FIG.  5 WW, gesture  5168  is detected on display  112 . Gesture  5168  starts from a location corresponding to soft keyboard  5164 . 
     The device, in response to detecting the flick gesture, moves ( 1210 ) the input area on the display with inertia in accordance with the flick gesture such that the input area comes to rest at a location adjacent to and just below a text entry area in the application content area. 
     In other words, when a drag gesture is applied to the input area, the input area tracks (follows) the movement of the finger making the drag gesture. When lift-off of the finger making the drag gesture is detected, the movement of the input area stops. In contrast, when a flick gesture is applied to the input area, the input area is ‘thrown’ in the direction of the flick gesture with some simulated inertia and friction, so the input area does not stop at a location that corresponds to where lift-off of the finger making the flick gesture occurred. Instead, the input area continues to move in the direction of the flick gesture, gradually slows down, and comes to rest at a location adjacent to and just below a text entry area in the application. Thus, an imprecise flick gesture results in automatic, precise placement of a keyboard just below a text entry area in an application, whereas a more precise drag gesture enables a user to manually position the text entry area. 
     For example, in FIGS.  5 WW- 5 XX, in response to gesture  5168 , soft keyboard  5164  moves with trajectory  5170 , including movement inertia, in accordance with gesture  5168 . Soft keyboard  5164  comes to rest adjacent to and below text entry area  5162 -F; soft keyboard  5164  docks just below text entry area  5162 -F. 
     In some embodiments, moving the input area on the display with inertia in accordance with the flick gesture includes calculating ( 1212 ) a trajectory of the input area based on the flick gesture, searching ( 1214 ) for one or more text entry areas in the application content area that meet predefined candidate criteria, and, when one or more candidate text entry areas are found, identifying ( 1216 ) a respective candidate text entry area as the text entry area that the input area will come to rest adjacent to and just below and adjusting the trajectory accordingly. For example, in FIGS.  5 WW- 5 XX, trajectory  5170  with termination point  5171  is calculated based on gesture  5168 . One or more text entry areas  5162  in application content area  5160  that meet predefined criteria (e.g., within a predefined distance from termination point  5171 ) are searched. Among candidates text entry areas that are found, one (e.g.,  5162 -F) is selected as the text entry area under which soft keyboard  5164  will come to rest. Trajectory  5170  is adjusted so that soft keyboard  5164  comes to rest under text entry area  5162 -F. 
     As another example, in FIGS.  5 YY- 5 ZZ, trajectory  5174  with termination point  5175  is calculated based on flick gesture  5172 . One or more text entry areas  5162  in application content area  5160  that meet predefined criteria (e.g., within a predefined distance from termination point  5175 ) are searched. Among candidates text entry areas that are found, one (e.g.,  5162 -A) is selected as the text entry area under which soft keyboard  5164  will come to rest. Trajectory  5174  is adjusted so that soft keyboard  5164  comes to rest under text entry area  5162 -A. 
     In some embodiments, identifying one of the candidate text entry areas as the text entry area that the input area will come to rest adjacent to and just below includes selecting ( 1218 ) a respective candidate text entry area that is closest to a termination point of the trajectory as the text entry area that the input area will come to rest adjacent to and just below. For example, in FIG.  5 YY, text entry area  5162 -A is selected as the text entry area under which soft keyboard  5164  come to rest; text entry area  5162 -A is closest to termination point  5175 . In  5 ZZ, soft keyboard  5164  comes to rest adjacent to and under text entry area  5162 -A. 
     In some embodiments, the respective candidate text entry area is identified as the text entry area that the input area will come to rest adjacent to and just below based on proximity of the respective candidate text entry area to a termination point of the trajectory ( 1220 ). For example, in FIG.  5 YY- 5 ZZ, text entry area  5162 -A is selected as the text entry area under which soft keyboard  5164  comes to rest based on the fact that it is the closest among text entry areas  5162  to termination point  5175 . 
     In some embodiments, the trajectory is calculated based on simulated physical properties of the input area ( 1222 ). For example, one or more simulated physical properties are associated with application content area  5160 . Examples of simulated physical properties include properties that affect the motion of an object, such as density, friction coefficient, and so forth. Values for the properties are predefined. A trajectory (e.g., trajectory  5170 ) is calculated based on the properties and the corresponding gesture (e.g., gesture  5168 ). 
     In some embodiments, the candidate criteria are met for a respective text entry area if the respective text entry area is within a predefined distance of a termination point of the trajectory ( 1224 ). For example, in FIG.  5 YY, text entry areas that are within a predefined distance (e.g., distance  5177 ) from termination point  5175  are identified as candidate text entry areas under which soft keyboard  5164  may come to rest in accordance with trajectory  5175 . Text entry areas  5162 -A and  5162 -B are within distance  5177  and are thus identified as candidate text entry areas. 
       FIGS. 13A-13B  are flow diagrams illustrating a method  1300  of reconfiguring an integrated input area in accordance with some embodiments. The method  1300  is performed at an electronic device (e.g., device  300 ,  FIG. 3 , or portable multifunction device  100 ,  FIG. 1 ) with a display and a touch-sensitive surface. In some embodiments, the display is a touch screen display and the touch-sensitive surface is on the display. In some embodiments, the display is separate from the touch-sensitive surface. 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 an intuitive way to reconfigure the sizes and positions of the left side and right side of a soft split keyboard in an integrated input area. The method is particularly useful when a user is performing two-thumb typing with a tablet computer (e.g., when the tablet computer is being held by the user&#39;s remaining eight fingers). The method makes it fast and easy for a user to customize a split keyboard in an integrated input area to the size of the user&#39;s thumbs, thereby creating a more efficient human-machine interface. For battery-operated electronic devices, using a split keyboard that is customized to the size of the user&#39;s thumbs enables the user to perform character entry faster and more efficiently, thereby conserving power and increasing the time between battery charges. 
     The device concurrently displays ( 1302 ) on the display a first text entry area, and an integrated input area, the integrated input area including a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion. For example, in FIG.  5 AAA, text entry area  5002  and integrated input area  5039  are displayed. Integrated input area  5039  includes left split keyboard portion  5039 -A, right soft keyboard portion  5039 -B, and center area  5039 -C between left and right portions  5039 -A and  5039 -B. 
     The device detects ( 1304 ) a first input on the touch-sensitive surface. In some embodiments, the first input is by a first thumb and a second thumb, distinct from the first thumb, on the touch-sensitive surface ( 1305 ) (e.g., a single tap gesture by the first thumb concurrent with a single tap gesture by the second thumb; a double tap gesture by the first thumb concurrent with a double tap gesture by the second thumb; or a swipe gesture by the first thumb concurrent with a swipe gesture by the second thumb). In some embodiments, the first input is detected at a location on the touch-sensitive surface that corresponds to the location of the integrated input area on the display. For example, returning to FIG.  5 AA, gesture  5176  is detected in split soft keyboard  5039 . Gesture  5176  includes concurrent thumb contacts  5176 -A and  5176 -B on display  112 . 
     In response to detecting the first input, the device enters ( 1306 ) a reconfiguration mode for the integrated input area. In response to detection of gesture  5176  (FIG.  5 AAA), for example, device  100  enters a reconfiguration mode for integrated input area  5039 . While in reconfiguration mode, device  100  is receptive to one or more gestures for resizing portions of the split keyboard in integrated input area  5039 . One advantage of having a distinct reconfiguration mode for the integrated input area is that this prevents the split keyboard from being accidentally reconfigured when the user is thumb typing. 
     While in the reconfiguration mode for the integrated input area, the device detects ( 1308 ) a second input by the first thumb and/or the second thumb. In response to detecting the second input, the device adjusts ( 1310 ) the size of at least one of the left side and the right side of the split keyboard in the integrated input area. 
     While in the reconfiguration mode for the integrated input area, the device detects ( 1312 ) a third input. In some embodiments, the third input is by the first thumb and/or the second thumb (e.g., a single tap gesture by the first thumb concurrent with a single tap gesture by the second thumb; a double tap gesture by the first thumb concurrent with a double tap gesture by the second thumb; or a swipe gesture by the first thumb concurrent with a swipe gesture by the second thumb). In response to detecting the third input, the device exits ( 1314 ) the reconfiguration mode for the integrated input area. In some embodiments, the third input is detected at a location on the touch-sensitive surface that corresponds to the location of the integrated input area on the display. 
     For example, FIGS.  5 BBB thru  5 MMM shows various gestures detected while in reconfiguration mode and the resulting change to integrated input area  5039  in response to the respective detected gesture. To take just one of these examples, FIG.  5 LLL shows gesture  5188  being detected. Gesture  5188  includes a left thumb moving away from the left edge of display  112 . In response to detection of gesture  5188 , left portion  5039 -A and right portion  5039 -B increase in size, as shown in FIG.  5 MMM. FIG.  5 NNN shows gesture  5190  detected on display  112 . In response to gesture  5190 , device  100  exits the reconfiguration mode, and split keyboard portions  5039 -A and  5039 -B maintain their new sizes. 
     In some embodiments, the second input includes a horizontal movement of a left thumb towards a left vertical side of the display, and in response to detecting the horizontal movement of the left thumb towards the left vertical side of the display, the device reduces ( 1316 ) the size of the left side of the split keyboard. In some embodiments, movement by one thumb adjusts the size of the corresponding side of the split keyboard. For example in FIGS.  5 BBB- 5 CCC, gesture  5178  is detected on display  112 . Gesture  5178  includes a left thumb moving horizontally toward the left vertical side of display  112 . In response to detection of gesture  5178 , left split keyboard portion  5039 -A reduces in size. 
     In some embodiments, the second input includes a horizontal movement of a left thumb away from a left vertical side of the display, and in response to detecting the horizontal movement of the left thumb away from the left vertical side of the display, the device increases ( 1318 ) the size of the left side of the split keyboard. For example in FIGS.  5 DDD- 5 EEE, gesture  5180  is detected on display  112 . Gesture  5180  includes a left thumb moving horizontally away from the left vertical side of display  112 . In response to detection of gesture  5180 , left split keyboard portion  5039 -A increases in size. 
     Analogously, in some embodiments, movement by the right thumb toward the right vertical side of the display and away from the right vertical side of the display decreases and increases, respectively, the size of the right side of the split keyboard, as shown in FIGS.  5 FFF- 5 III. 
     In some embodiments, the second input includes a horizontal movement of the first thumb towards a vertical side of the display closest to the first thumb (e.g., moving the left thumb towards the left vertical side of the display or moving the right thumb towards the right vertical side of the display), and in response to detecting the horizontal movement of the first thumb towards the vertical side of the display closest to the first thumb, the device reduces the size of the left side and the right side of the split keyboard ( 1320 ). In some embodiments, movement by just one thumb concurrently reduces the size of both the left side and the right side of the split keyboard. For example, in FIGS.  5 JJJ- 5 KKK, gesture  5186  is detected on display  112 . Gesture  5186  includes a left thumb moving toward the left vertical side of display  112 . In response to detection of gesture  5186 , left split keyboard portion  5039 -A and right split keyboard portion  5039 -B are concurrently reduced in size. 
     In some embodiments, the left edge of the left side of the split keyboard maintains its position (which is typically near the left vertical side of the display) as the left side of the split keyboard is reduced. Thus, the right edge of the left side of the split keyboard moves closer to the left vertical side of the display as the left side of the split keyboard is reduced. This makes it easier for the left thumb to reach the keys near the right edge of the left side of the split keyboard and eliminates the need for the user to reposition the left edge of the left side of the keyboard after the left side of the keyboard is reduced. Similarly, in some embodiments, the right edge of the right side of the split keyboard maintains its position (which is typically near the right vertical side of the display) as the right side of the split keyboard is reduced. Thus, the left edge of the right side of the split keyboard moves closer to the right vertical side of the display as the right side of the split keyboard is reduced. This makes it easier for the right thumb to reach the keys near the left edge of the right side of the split keyboard and eliminates the need for the user to reposition the right edge of the right side of the keyboard after the right side of the keyboard is reduced. 
     In some embodiments, the second input includes a horizontal movement of the first thumb away from a vertical side of the display closest to the first thumb (e.g., moving the left thumb away from the left vertical side of the display or moving the right thumb away from the right vertical side of the display), and in response to detecting the horizontal movement of the first thumb away from the vertical side of the display closest to the first thumb, the device increases ( 1322 ) the size of the left side and the right side of the split keyboard. In some embodiments, movement by just one thumb concurrently increases the size of both the left side and the right side of the split keyboard. For example, in FIGS.  5 LLL- 5 MMM, gesture  5188  is detected on display  112 . Gesture  5188  includes a left thumb moving away from the left vertical side of display  112 . In response to detection of gesture  5188 , left split keyboard portion  5039 -A and right split keyboard portion  5039 -B increase in size. 
     In accordance with some embodiments,  FIG. 14  shows a functional block diagram of an electronic device  1400  configured in accordance with the principles of the invention as described above. The functional blocks of the device may be implemented by hardware, software, or a combination of hardware and software to carry out the principles of the invention. It is understood by persons of skill in the art that the functional blocks described in  FIG. 14  may be combined or separated into sub-blocks to implement the principles of the invention as described above. Therefore, the description herein may support any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 14 , an electronic device  1400  includes a display unit  1402  configured to concurrently display a first text entry area and an unsplit keyboard, a touch-sensitive surface unit  1404  configured to receive user gestures, and a processing unit  1406  coupled to the display unit  1402  and the touch-sensitive surface unit  1404 . In some embodiments, the processing unit  1406  includes a detecting unit  1408 , a replacing unit  1410 , an inputting unit  1412 , and a display enabling unit  1414 . 
     The processing unit  1406  is configured to detect a gesture on the touch-sensitive surface unit  1404  (e.g., with the detecting unit  1408 ), and, in response to detecting the gesture on the touch-sensitive surface unit  1404 , replace the unsplit keyboard with an integrated input area (e.g., with the replacing unit  1410 ). The integrated input area includes a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion. 
     In some embodiments, the integrated input area includes a second text entry area. 
     In some embodiments, the first text entry area is a text entry area that displays text at a first size, and the second text entry area is a text entry area that displays a portion of the text in the first text entry area at a second size that is larger than the first size. 
     In some embodiments, the processing unit  1406  is configured to: while displaying the integrated input area, detect a gesture at a location on the touch-sensitive surface unit  1404  that corresponds to a location of a character key in the split keyboard (e.g., with the detecting unit  1408 ); and, in response to detecting the gesture at the location on the touch-sensitive surface unit  1404  that corresponds to the location of the character key in the split keyboard, input and enable concurrent display of the corresponding character in the first text entry area and the second text entry area on the display unit  1402  (e.g., with the inputting unit  1412  and the display enabling unit  1414 ). 
     In some embodiments, the electronic device  1400  is a portable electronic device. 
     In some embodiments, the display unit  1402  is a touch-sensitive display unit that includes a touch-sensitive surface unit  1404 . 
     In some embodiments, the gesture is a multifinger depinch gesture at a location on the touch-sensitive surface unit  1404  that corresponds to the location of the unsplit keyboard on the display unit  1402 . 
     In some embodiments, the gesture is a tap gesture on a keyboard selection icon. 
     In some embodiments, replacing the unsplit keyboard with the integrated input area includes enabling display of an animation that transitions the unsplit keyboard to the integrated input area. 
     In some embodiments, the processing unit  1406  is configured to: while displaying the integrated input area, detect a second gesture on the touch-sensitive surface unit  1404  (e.g., with the detecting unit  1408 ); and, in response to detecting the second gesture on the touch-sensitive surface unit  1404 , replace the integrated input area with the unsplit keyboard (e.g., with the replacing unit  1410 ). 
     In some embodiments, the second gesture is a multifinger pinch gesture at a location on the touch-sensitive surface unit  1404  that corresponds to the location of the integrated input area on the display unit  1402 . 
     In some embodiments, the second gesture is a tap gesture on a keyboard selection icon. 
     In some embodiments, replacing the integrated input area with the unsplit keyboard includes enabling display of an animation that transitions the integrated input area to the unsplit keyboard. 
     In accordance with some embodiments,  FIG. 15  shows a functional block diagram of an electronic device  1500  configured in accordance with the principles of the invention as described above. The functional blocks of the device may be implemented by hardware, software, or a combination of hardware and software to carry out the principles of the invention. It is understood by persons of skill in the art that the functional blocks described in  FIG. 15  may be combined or separated into sub-blocks to implement the principles of the invention as described above. Therefore, the description herein may support any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 15 , an electronic device  1500  includes a display unit  1502  configured to display a first keyboard, the first keyboard including a first plurality of keys; a touch-sensitive surface unit  1504  configured to receive user gestures; and a processing unit  1506  coupled to the display unit  1502  and the touch-sensitive surface unit  1504 . In some embodiments, the processing unit  1506  includes a detecting unit  1508 , an activating unit  1510 , a replacing unit  1512 , a maintaining unit  1514 , and a disabling unit  1516 . 
     The processing unit  1506  is configured to detect a key activation gesture at a first time at a location on the touch-sensitive surface unit  1504  that corresponds to a location of a first key in the first keyboard (e.g., with the detecting unit  1508 ); in response to detecting the key activation gesture at the first time, activate the first key (e.g., with the activating unit  1510 ); detect one or more contacts on the touch-sensitive surface unit  1504  at a second time after the first time, the one or more contacts corresponding to a keyboard selection gesture (e.g., with the detecting unit  1508 ); and in response to detecting the one or more contacts that correspond to the keyboard selection gesture at the second time after the first time: replace the first keyboard with a second keyboard on the display unit  1502  when the second time exceeds a predefined period of time after the first time (e.g., with the replacing unit  1512 ); and maintain display of the first keyboard on the display unit  1502  when the second time is less than the predefined period of time after the first time (e.g., with the maintaining unit  1514 ). 
     In some embodiments, the processing unit  1506  is configured to: in response to detecting the key activation gesture at the first time, disable a gesture recognizer for the keyboard selection gesture for the predefined period of time (e.g., with the disabling unit  1516 ). 
     In some embodiments, the electronic device  1500  is a portable electronic device. 
     In some embodiments, the display unit  1502  is a touch-sensitive display unit that includes the touch-sensitive surface unit  1504 . 
     In some embodiments, the keyboard selection gesture is a multifinger gesture at a location on the touch-sensitive surface unit  1504  that corresponds to the location of the first keyboard on the display unit  1502 . 
     In some embodiments, replacing the first keyboard with the second keyboard includes enabling display of an animation that transitions the first keyboard to the second keyboard. 
     In accordance with some embodiments,  FIG. 16  shows a functional block diagram of an electronic device  1600  configured in accordance with the principles of the invention as described above. The functional blocks of the device may be implemented by hardware, software, or a combination of hardware and software to carry out the principles of the invention. It is understood by persons of skill in the art that the functional blocks described in  FIG. 16  may be combined or separated into sub-blocks to implement the principles of the invention as described above. Therefore, the description herein may support any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 16 , an electronic device  1600  includes a display unit  1602  configured to concurrently display a first text entry area and an integrated input area, the integrated input area including a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion; a touch-sensitive surface unit  1604  configured to receive user contacts and movements of the user contacts; and a processing unit  1606  coupled to the display unit  1602  and the touch-sensitive surface unit  1604 . In some embodiments, the processing unit  1606  includes a detecting unit  1608 , and a moving unit  1610 . 
     The processing unit  1606  is configured to detect a first contact on the touch-sensitive surface unit  1604  at a location that corresponds to the center portion of the integrated input area (e.g., with the detecting unit  1608 ); detect movement of the first contact along the touch-sensitive surface unit  1604  (e.g., with the detecting unit  1608 ); in response to detecting the movement of the first contact along the touch-sensitive surface unit  1604 , move the integrated input area on the display unit  1602  in accordance with the movement of the first contact when the movement of the first contact exceeds a first movement threshold (e.g., with the moving unit  1610 ); detect a second contact, distinct from the first contact, on the touch-sensitive surface unit  1604  at a location that corresponds to the split keyboard (e.g., with the detecting unit  1608 ); detect movement of the second contact along the touch-sensitive surface unit  1604  (e.g., with the detecting unit  1608 ); and, in response to detecting the movement of the second contact along the touch-sensitive surface unit  1604 , move the integrated input area on the display unit  1602  in accordance with the movement of the second contact when the movement of the second contact exceeds a second movement threshold, the second movement threshold being greater than the first movement threshold (e.g., with the moving unit  1610 ). 
     In some embodiments, a respective movement threshold is a function of a horizontal distance of a respective contact from a vertical centerline of the integrated input area. 
     In some embodiments, the integrated input area is constrained to vertical movement on the display unit  1602  and the integrated input area moves in accordance with a vertical component of movement of a respective contact when a movement threshold for the respective contact is exceeded. 
     In some embodiments, the left side of the split keyboard and the right side of the split keyboard maintain fixed positions relative to each other within the integrated input area during movement of the integrated input area. 
     In accordance with some embodiments,  FIG. 17  shows a functional block diagram of an electronic device  1700  configured in accordance with the principles of the invention as described above. The functional blocks of the device may be implemented by hardware, software, or a combination of hardware and software to carry out the principles of the invention. It is understood by persons of skill in the art that the functional blocks described in  FIG. 17  may be combined or separated into sub-blocks to implement the principles of the invention as described above. Therefore, the description herein may support any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 17 , an electronic device  1700  includes a display unit  1702  configured to concurrently display an application content area with a first size, and an input area with a keyboard, the input area being adjacent to and separate from the application content area with the first size, the input area being at a bottom of the display unit  1702 ; a touch-sensitive surface unit  1704  configured to receive user gestures; and a processing unit  1706  coupled to the display unit  1702  and the touch-sensitive surface unit  1704 . In some embodiments, the processing unit  1706  includes a detecting unit  1708 , a moving unit  1710 , and an increasing unit  1712 . 
     The processing unit  1706  is configured to detect a gesture on the touch-sensitive surface unit  1704  (e.g., with the detecting unit  1708 ); and, in response to detecting the gesture on the touch-sensitive surface unit  1704 : move the input area away from the bottom of the display unit  1702  over the application content area (e.g., with the moving unit  1710 ), and increase a size of the application content area to a second size larger than the first size (e.g., with the increasing unit  1712 ). 
     In some embodiments, the first size of the application content area has a first height, the second size of the application content area has a second height, the input area has an input area height, and the second height is greater than the first height by an amount equal to the input area height. 
     In accordance with some embodiments,  FIG. 18  shows a functional block diagram of an electronic device  1800  configured in accordance with the principles of the invention as described above. The functional blocks of the device may be implemented by hardware, software, or a combination of hardware and software to carry out the principles of the invention. It is understood by persons of skill in the art that the functional blocks described in  FIG. 18  may be combined or separated into sub-blocks to implement the principles of the invention as described above. Therefore, the description herein may support any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 18 , an electronic device  1800  includes a display unit  1802  configured to concurrently display a text entry area, a left side of a split keyboard, and a right side of a split keyboard, the left side of the split keyboard including a plurality of rows of keys and the right side of the split keyboard including a corresponding plurality of rows of keys; a touch-sensitive surface unit  1804  configured to receive user gestures; and a processing unit  1806  coupled to the display unit  1802  and the touch-sensitive surface unit  1804 . In some embodiments, the processing unit  1806  includes a detecting unit  1808 , an entering unit  1810 , and a foregoing unit  1812 . 
     The processing unit  1806  is configured to detect a gesture at a location on the touch-sensitive surface unit  1804  that corresponds to a predefined area adjacent to and to the right of a rightmost key in a respective row of the left side of the split keyboard (e.g., with the detecting unit  1808 ); and, in response to detecting the gesture at the location on the touch-sensitive surface unit  1804  that corresponds to the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard, enter in the text entry area a character that corresponds to a leftmost key in a corresponding respective row of the right side of the split keyboard (e.g., with the entering unit  1810 ). 
     In some embodiments, the predefined area adjacent to and to the right of the rightmost key in the respective row of the left side of the split keyboard is an undisplayed key activation area that corresponds to the leftmost key in the corresponding respective row of the right side of the split keyboard. 
     In some embodiments, the processing unit  1806  is configured to detect a gesture at a location on the touch-sensitive surface unit  1804  that corresponds to a predefined area adjacent to and to the left of a leftmost key in a respective row of the right side of the split keyboard (e.g., with the detecting unit  1808 ); and, in response to detecting the gesture at the location on the touch-sensitive surface unit  1804  that corresponds to the predefined area adjacent to and to the left of the leftmost key in the respective row of the right side of the split keyboard, enter in the text entry area a character that corresponds to a rightmost key in a corresponding respective row of the left side of the split keyboard (e.g., with the entering unit  1810 ). 
     In some embodiments, the predefined area adjacent to and to the left of the leftmost key in the respective row of the right side of the split keyboard is an undisplayed key activation area that corresponds to the rightmost key in the corresponding respective row of the left side of the split keyboard. 
     In some embodiments, the processing unit  1806  is configured to: prior to detecting the gesture, detect a key activation gesture at a first time at a location on the touch-sensitive surface unit  1804  that corresponds to a location of a visible key in the split keyboard (e.g., with the detecting unit  1808 ); and, in response to detecting the gesture at a second time after the first time: enter in the text entry area the character that corresponds to the leftmost key in the corresponding respective row of the right side of the split keyboard when the second time is less than a predefined period of time after the first time (e.g., with the entering unit  1810 ); and forego entering in the text entry area the character that corresponds to the leftmost key in the corresponding respective row of the right side of the split keyboard when the second time exceeds the predefined period of time after the first time (e.g., with the foregoing unit  1812 ). 
     In accordance with some embodiments,  FIG. 19  shows a functional block diagram of an electronic device  1900  configured in accordance with the principles of the invention as described above. The functional blocks of the device may be implemented by hardware, software, or a combination of hardware and software to carry out the principles of the invention. It is understood by persons of skill in the art that the functional blocks described in  FIG. 19  may be combined or separated into sub-blocks to implement the principles of the invention as described above. Therefore, the description herein may support any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 19 , an electronic device  1900  includes a display unit  1902  configured to concurrently display a first text entry area and an integrated input area, the integrated input area including a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion with a second text entry area, the center portion in between the left portion and the right portion; a touch-sensitive surface unit  1904  configured to receive user gestures; and a processing unit  1906  coupled to the display unit  1902  and the touch-sensitive surface unit  1904 . In some embodiments, the processing unit  1906  includes a detecting unit  1908 , a display enabling unit  1910 , an inputting unit  1912 , moving unit  1914 , an executing unit  1916 , a selecting unit  1918 , a making unit  1920 , a formatting unit  1922 , and an entering unit  1924 . 
     The processing unit  1906  is configured to: detect a gesture at a location on the touch-sensitive surface unit  1904  that corresponds to a location of a character key in the split keyboard (e.g., with the detecting unit  1908 ); and, in response to detecting the gesture at the location on the touch-sensitive surface unit  1904  that corresponds to the location of the character key in the split keyboard, input and enable concurrent display of the corresponding character in the first text entry area and the second text entry area on the display unit  1902  (e.g., with the inputting unit  1912  and the display enabling unit  1910 ). 
     In some embodiments, the first text entry area displays text at a first size, and the second text entry area displays a portion of the text in the first text entry area at a second size that is larger than the first size. 
     In some embodiments, the width of the integrated input area is the same as the width of the display unit  1902 . 
     In some embodiments, the left side of the split keyboard and the right side of the split keyboard maintain fixed positions relative to each other within the integrated input area during movement of the integrated input area. 
     In some embodiments, the second text entry area includes an insertion point that remains stationary on the display unit  1902  as text is entered. 
     In some embodiments, the second text entry area includes an insertion point, wherein the processing unit  1906  is configured to: detect a gesture on the touch-sensitive surface unit  1904  at a location that corresponds to the insertion point in the second text entry area (e.g., with the detecting unit  1908 ); and, move the insertion point in the second text entry area in accordance with the gesture on the touch-sensitive surface unit  1904  at the location that corresponds to the insertion point in the second text entry area (e.g., with the moving unit  1914 ). 
     In some embodiments, the processing unit  1906  is configured to: enable display of text editing controls in the center portion of the integrated input area (e.g., with the display enabling unit  1910 ); detect a gesture on the touch-sensitive surface unit  1904  at a location that corresponds to a text editing control in the center portion of the integrated input area (e.g., with the detecting unit  1908 ); and, execute a text editing command in accordance with the gesture on the touch-sensitive surface unit  1904  at the location that corresponds to the text editing control (e.g., with the executing unit  1916 ). 
     In some embodiments, the text editing controls in the center portion of the integrated input area have corresponding text editing controls in the first text entry area. 
     In some embodiments, the processing unit  1906  is configured to: enable display of user-selectable input elements in the center portion of the integrated input area (e.g., with the display enabling unit  1910 ); detect a gesture on the touch-sensitive surface unit  1904  at a location that corresponds to a user-selectable input element in the center portion of the integrated input area (e.g., with the detecting unit  1908 ); and, in response to detecting the gesture on the touch-sensitive surface unit  1904  at the location that corresponds to the user-selectable input element, select the user-selectable input element (e.g., with the selecting unit  1918 ). 
     In some embodiments, the processing unit  1906  is configured to: detect a gesture on the touch-sensitive surface unit  1904  at a location that corresponds to the center portion of the integrated input area (e.g., with the detecting unit  1908 ); and, in response to detecting the gesture on the touch-sensitive surface unit  1904  at the location that corresponds to the center portion of the integrated input area, enable display of a popup view (e.g., with the display enabling unit  1910 ). 
     In some embodiments, the processing unit  1906  is configured to: detect a plurality of gestures on the touch-sensitive surface unit  1904  at a location that corresponds to the center portion of the integrated input area (e.g., with the detecting unit  1908 ); and, enter in the first text entry area and the second text entry area a character that corresponds to the plurality of gestures (e.g., with the entering unit  1924 ). 
     In some embodiments, the processing unit  1906  is configured to: detect a plurality of gestures on the touch-sensitive surface unit  1904  at a location that corresponds to the center portion of the integrated input area (e.g., with the detecting unit  1908 ); and, make a drawing in accordance with the plurality of gestures (e.g., with the making unit  1920 ). 
     In some embodiments, the processing unit  1906  is configured to: enable display of a suggested word in the center portion of the integrated input area (e.g., with the display enabling unit  1910 ); detect a gesture on the touch-sensitive surface unit  1904  at a location that corresponds to the suggested word (e.g., with the detecting unit  1908 ); and, execute a text editing command in accordance with the gesture on the touch-sensitive surface unit  1904  at the location that corresponds to the suggested word (e.g., with the executing unit  1916 ). 
     In some embodiments, the processing unit  1906  is configured to: enable display of a plurality of emoji characters in the center portion of the integrated input area (e.g., with the display enabling unit  1910 ); detect a gesture on the touch-sensitive surface unit  1904  at a location that corresponds to an emoji character in the plurality of emoji characters (e.g., with the detecting unit  1908 ); and, in response to detecting the gesture on the touch-sensitive surface unit  1904  at the location that corresponds to the emoji character, input and enable display of the emoji character in the first text entry area and the second text entry area on the display unit  1902  (e.g., with the inputting unit  1912  and the display enabling unit  1910 ). 
     In some embodiments, the processing unit  1906  is configured to: enable display of a plurality of unicode characters in the center portion of the integrated input area (e.g., with the display enabling unit  1910 ); detect a gesture on the touch-sensitive surface unit  1904  at a location that corresponds to a unicode character in the plurality of unicode characters (e.g., with the detecting unit  1908 ); and, in response to detecting the gesture on the touch-sensitive surface unit  1904  at the location that corresponds to the unicode character, input and enable display of the unicode character in the first text entry area and the second text entry area on the display unit  1902  (e.g., with the inputting unit  1912  and the display enabling unit  1910 ). 
     In some embodiments, the processing unit  1906  is configured to: detect a gesture on the touch-sensitive surface unit  1904  at a location that corresponds to the second text entry area (e.g., with the detecting unit  1908 ); and, in response to detecting the gesture on the touch-sensitive surface unit  1904  at the location that corresponds to the second text entry area, select a range of text (e.g., with the select unit  1918 ). 
     In some embodiments, the processing unit  1906  is configured to: detect a gesture on the touch-sensitive surface unit  1904  at a location that corresponds to one or more words in the second text entry area (e.g., with the detecting unit  1908 ); and, in response to detecting the gesture on the touch-sensitive surface unit  1904  at the location that corresponds to the second text entry area, format the one or more words (e.g., with the formatting unit  1922 ). 
     In some embodiments, input elements in the center portion of the integrated input area are user-configurable. 
     In accordance with some embodiments,  FIG. 20  shows a functional block diagram of an electronic device  2000  configured in accordance with the principles of the invention as described above. The functional blocks of the device may be implemented by hardware, software, or a combination of hardware and software to carry out the principles of the invention. It is understood by persons of skill in the art that the functional blocks described in  FIG. 20  may be combined or separated into sub-blocks to implement the principles of the invention as described above. Therefore, the description herein may support any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 20 , an electronic device  2000  includes a display unit  2002  configured to concurrently display an application content area that includes one or more text entry areas, and an input area with a keyboard that is displayed over the application content area; a touch-sensitive surface unit  2004  configured to receive user gestures; and a processing unit  2006  coupled to the display unit  2002  and the touch-sensitive surface unit  2004 . In some embodiments, the processing unit  2006  includes a detecting unit  2008 , and a moving unit  2010 . 
     The processing unit  2006  is configured to: detect a drag gesture on the touch-sensitive surface unit  2004  at a location that corresponds to the input area on the display unit  2002  (e.g., with the detecting unit  2008 ); in response to detecting the drag gesture, move the input area on the display unit  2002  in accordance with the drag gesture (e.g., with the moving unit  2010 ); detect a flick gesture on the touch-sensitive surface unit  2004  at a location that corresponds to the input area on the display unit  2002  (e.g., with the detecting unit  2008 ); and, in response to detecting the flick gesture, move the input area on the display unit  2002  with inertia in accordance with the flick gesture such that the input area comes to rest at a location adjacent to and just below a text entry area in the application content area (e.g., with the moving unit  2010 ). 
     In some embodiments, moving the input area on the display unit  2002  with inertia in accordance with the flick gesture includes: calculating a trajectory of the input area based on the flick gesture; searching for one or more text entry areas in the application content area that meet predefined candidate criteria; and, when one or more candidate text entry areas are found, identifying a respective candidate text entry area as the text entry area that the input area will come to rest adjacent to and just below and adjusting the trajectory accordingly. 
     In some embodiments, the respective candidate text entry area is identified as the text entry area that the input area will come to rest adjacent to and just below based on proximity of the respective candidate text entry area to a termination point of the trajectory. 
     In some embodiments, the trajectory is calculated based on simulated physical properties of the input area. 
     In some embodiments, the candidate criteria are met for a respective text entry area if the respective text entry area is within a predefined distance of a termination point of the trajectory. 
     In some embodiments, identifying one of the candidate text entry areas as the text entry area that the input area will come to rest adjacent to and just below includes selecting a respective candidate text entry area that is closest to a termination point of the trajectory as the text entry area that the input area will come to rest adjacent to and just below. 
     In accordance with some embodiments,  FIG. 21  shows a functional block diagram of an electronic device  2100  configured in accordance with the principles of the invention as described above. The functional blocks of the device may be implemented by hardware, software, or a combination of hardware and software to carry out the principles of the invention. It is understood by persons of skill in the art that the functional blocks described in  FIG. 21  may be combined or separated into sub-blocks to implement the principles of the invention as described above. Therefore, the description herein may support any possible combination or separation or further definition of the functional blocks described herein. 
     As shown in  FIG. 21 , an electronic device  2100  includes a display unit  2102  configured to concurrently display a first text entry area, and an integrated input area, the integrated input area including: a left portion with a left side of a split keyboard, a right portion with a right side of the split keyboard, and a center portion in between the left portion and the right portion; a touch-sensitive surface unit  2104  configured to receive user inputs; a processing unit  2106  coupled to the display unit  2102  and the touch-sensitive surface unit  2104 . In some embodiments, the processing unit  2106  includes a detecting unit  2108 , an entering unit  2110 , an adjusting unit  2112 , an exiting unit  2114 , a reducing unit  2116 , and an increasing unit  2118 . 
     The processing unit  2106  is configured to: detect a first input on the touch-sensitive surface unit  2104  (e.g., with the detecting unit  2108 ); in response to detecting the first input, enter a reconfiguration mode for the integrated input area (e.g., with the entering unit  2110 ); while in the reconfiguration mode for the integrated input area: detect a second input by a first thumb and/or a second thumb (e.g., with the detecting unit  2108 ); in response to detecting the second input, adjust the size of at least one of the left side and the right side of the split keyboard in the integrated input area (e.g., with the adjusting unit  2112 ); and detect a third input (e.g., with the detecting unit  2108 ); and, in response to detecting the third input, exit the reconfiguration mode for the integrated input area (e.g., with the exiting unit  2114 ). 
     In some embodiments, the first input includes a first thumb and a second thumb, distinct from the first thumb. 
     In some embodiments, the third input includes the first thumb and/or the second thumb. 
     In some embodiments, the second input includes a horizontal movement of a left thumb towards a left vertical side of the display unit  2102 ; and the processing unit  2106  is configured to, in response to detecting the horizontal movement of the left thumb towards the left vertical side of the display unit  2102 , reduce the size of the left side of the split keyboard (e.g., with the reducing unit  2116 ). 
     In some embodiments, the second input includes a horizontal movement of a left thumb away from a left vertical side of the display unit  2102 ; and the processing unit  2106  is configured to, in response to detecting the horizontal movement of the left thumb away from the left vertical side of the display unit  2102 , increase the size of the left side of the split keyboard (e.g., with the increasing unit  2118 ). 
     In some embodiments, the second input includes a horizontal movement of the first thumb towards a vertical side of the display unit  2102  closest to the first thumb; and the processing unit  2106  is configured to, in response to detecting the horizontal movement of the first thumb towards the vertical side of the display unit  2102  closest to the first thumb, reduce the size of the left side and the right side of the split keyboard (e.g., with the reducing unit  2116 ). 
     In some embodiments, the second input includes a horizontal movement of the first thumb away from a vertical side of the display unit  2102  closest to the first thumb; and the processing unit  2106  is configured to, in response to detecting the horizontal movement of the first thumb away from the vertical side of the display unit  2102  closest to the first thumb, increase the size of the left side and the right side of the split keyboard (e.g., with the increasing unit  2118 ). 
     The operations 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 and 3 ) are all included within the scope of protection of the invention. 
     The operations described above with reference to  FIGS. 6A-6B ,  7 A- 7 B,  8 A- 8 B,  9 ,  10 A- 10 B,  11 A- 11 D,  12 A- 12 B, and  13 A- 13 B may be implemented by components depicted in  FIGS. 1A-1B . For example, detection operation  604 , and replacing operation  610  may be implemented by event sorter  170 , event recognizer  180 , and event handler  190 . Event monitor  171  in event sorter  170  detects a contact on touch-sensitive display  112 , and event dispatcher module  174  delivers the event information to application  136 - 1 . A respective event recognizer  180  of application  136 - 1  compares the event information to respective event definitions  186 , and determines whether a first contact at a first location on the touch-sensitive surface corresponds to a predefined event or sub-event, such as selection of an object on a user interface. When a respective predefined event or sub-event is detected, event recognizer  180  activates an event handler  190  associated with the detection of the event or sub-event. Event handler  190  may utilize or call data updater  176  or object updater  177  to update the application internal state  192 . In some embodiments, event handler  190  accesses a respective GUI updater  178  to update what is displayed by the application. Similarly, it would be clear to a person having ordinary skill in the art how other processes can be implemented based on the components depicted in  FIGS. 1A-1B . 
     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.

Metadata:
Filing Date: 20110330
Publication Date: 20131126
Grant Date: 20131126
Priority Date: 20101105
Inventors: KOCH JONATHAN
VICTOR B. MICHAEL
CIEPLINSKI AVI E.
MISSIG JULIAN
Assignee: APPLE INC
CPC Classifications: [{"code": "G06F3/04886", "inventive": true, "first": true, "tree": "[]"}]
Family ID: 45561055