PATENT DOCUMENT

Publication Number: US-10928980-B2
Application Number: US-201715730610-A
Country: US
Kind Code: B2

Title: User interfaces for playing and managing audio items

Abstract:
The present disclosure generally relates to playing and managing audio items. In some examples, an electronic device provides intuitive user interfaces for playing and managing audio items on the device. In some examples, an electronic device provides seamless transitioning from navigating a stack of items corresponding to groups of audio items to navigating a list of menus. In some examples, an electronic device provides for quick and easy access between different applications that are active on the device. In some examples, an electronic device enables automatic transmission of data associated with audio items to be stored locally on a linked external device.

Claims:
What is claimed is: 
     
       1. An electronic device, comprising:
 a touch-sensitive display; 
 one or more processors; and 
 memory storing one or more programs configured to be executed by the one or more processors, the one or more programs including instructions for:
 displaying, on the display, a first user interface having an ordered stack of audio playlist items, wherein the ordered stack of audio playlist items includes a first item, a second item, and a third item, wherein the first item is fully displayed and the first item at least partially obscures the second item and the third item, and wherein each audio playlist item of the ordered stack of audio playlist items is configured to, when activated via a user gesture corresponding to selection of a respective audio playlist item, initiate playback of a media item associated with the respective audio playlist item; 
 receiving a first input in a first direction; 
 in response to receiving the first input, displaying, on the display, the second item of the ordered stack of audio playlist items, wherein the second item is fully displayed; 
 receiving a second input in the first direction; and 
 in response to receiving the second input:
 based on a determination that the second item is a terminal item in the ordered stack of audio playlist items, concurrently displaying, on the display, at least one audio playlist item of the ordered stack of audio playlist items and at least one menu affordance of a plurality of menu affordances, wherein the at least one menu affordance is displayed as graphically separate from the ordered stack of audio playlist items, wherein the terminal item is an item in a first position or a last position of the ordered stack of audio playlist items, and wherein each menu affordance of the plurality of menu affordances is configured to, when activated via a user gesture corresponding to selection of a respective menu affordance, cause display of a second user interface, different from the first user interface, without initiating playback of a media item; and 
 based on a determination that the second item is an intermediate item in the ordered stack of audio playlist items, displaying, on the display, the third item of the ordered stack of audio playlist items, wherein the third item is fully displayed, and wherein the intermediate item is an item in the ordered stack of audio playlist items that is not the terminal item. 
 
 
 
     
     
       2. The electronic device of  claim 1 , wherein the electronic device further includes a rotatable input mechanism, and wherein:
 the first input is based on a movement of the rotatable input mechanism in the first direction; and 
 the second input is based on a continued movement of the rotatable input mechanism in the first direction. 
 
     
     
       3. The electronic device of  claim 1 , wherein:
 the first input is a gesture on the touch-sensitive display corresponding to a finger scroll in the first direction; and 
 the second input is an additional finger scroll in the first direction. 
 
     
     
       4. The electronic device of  claim 1 , wherein the terminal item is the item in the first position of the ordered stack of audio playlist items. 
     
     
       5. The electronic device of  claim 1 , the one or more programs further including instructions for:
 while displaying, on the display, the ordered stack of audio playlist items, receiving user selection of the first item; 
 in response to receiving the user selection of the first item, displaying, on the display, a control user interface, wherein the control user interface includes an indication of a first audio item associated with the first item; and 
 causing audio output of the first audio item. 
 
     
     
       6. The electronic device of  claim 1 , the one or more programs further including instructions for:
 while displaying the at least one menu affordance of the plurality of menu affordances, receiving user selection of a first menu affordance of the plurality of menu affordances; 
 in response to receiving the user selection of the first menu affordance, displaying, on the display, the second user interface having a plurality of audio group affordances; 
 receiving user selection of a first audio group affordance of the plurality of audio group affordances; 
 in response to receiving the user selection of the first audio group affordance, displaying, on the display, one or more audio group items associated with the first audio group affordance; 
 receiving user selection of a first audio group item of the one or more audio group items; and 
 in response to receiving the user selection of the first audio group item:
 displaying, on the display, a control user interface, wherein the control user interface includes an indication of a first audio item of the first audio group item, and 
 causing audio output of the first audio item. 
 
 
     
     
       7. The electronic device of  claim 1 , the one or more programs further including instructions for:
 while displaying the at least one menu affordance of the plurality of menu affordances, receiving user selection of a first menu affordance of the plurality of menu affordances; 
 in response to receiving the user selection of the first menu affordance, displaying, on the display, the second user interface having a plurality of audio group affordances; 
 receiving user selection of a first audio group affordance of the plurality of audio group affordances; 
 in response to receiving the user selection of the first audio group affordance, displaying, on the display, one or more audio group items associated with the first audio group affordance; 
 receiving user selection of a first audio group item of the one or more audio group items; 
 in response to receiving the user selection of the first audio group item, displaying, on the display, one or more audio sub-group items associated with the first audio group item; 
 receiving user selection of a first audio sub-group item of the one or more audio sub-group items; and 
 in response to receiving the user selection of the first audio sub-group item:
 displaying, on the display, a control user interface, wherein the control user interface includes an indication of a first audio item of the first audio sub-group item, and 
 causing audio output of the first audio item. 
 
 
     
     
       8. The electronic device of  claim 1 , the one or more programs further including instructions for:
 in accordance with the determination that the second item is the intermediate item in the ordered stack of audio playlist items, displaying, on the display, the third item of the ordered stack of audio playlist items without displaying the at least one menu affordance of the plurality of menu affordances. 
 
     
     
       9. The electronic device of  claim 1 , the one or more programs further including instructions for:
 in accordance with the determination that the second item is the terminal item in the ordered stack of audio playlist items:
 while displaying the at least one menu affordance of the plurality of menu affordances, receiving a third input directed to a first menu affordance of the plurality of menu affordances; and 
 in response to receiving the third input, displaying, on the display, a first the second user interface without causing audio to be played. 
 
 
     
     
       10. The electronic device of  claim 1 , the one or more programs further including instructions for:
 in accordance with the determination that the second item is the intermediate item in the ordered stack of audio playlist items:
 while displaying the third item, receiving a fourth input directed to the third item of the ordered stack of audio playlist items; and 
 in response to detecting the fourth input, displaying, on the display, a third user interface, different from the first user interface and the second user interface, and causing audio corresponding to the third item to be played. 
 
 
     
     
       11. The electronic device of  claim 1 , wherein audio playlist items of the ordered stack of audio playlist items include a first size and a first appearance, and wherein the plurality of menu affordances includes a second size, different from the first size, and a second appearance, different from the first appearance. 
     
     
       12. The electronic device of  claim 1 , wherein the plurality of menu affordances includes a now playing affordance that, when activated via a user gesture, displays a control user interface for an audio item. 
     
     
       13. A non-transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processors of an electronic device with a touch-sensitive display, the one or more programs including instructions for:
 displaying, on the display, a first user interface having an ordered stack of audio playlist items, wherein the ordered stack of audio playlist items includes a first item, a second item, and a third item, wherein the first item is fully displayed and the first item at least partially obscures the second item and the third item, and wherein each audio playlist item of the ordered stack of audio playlist items is configured to, when activated via a user gesture corresponding to selection of a respective audio playlist item, initiate playback of a media item associated with the respective audio playlist item; 
 receiving a first input in a first direction; 
 in response to receiving the first input, displaying, on the display, the second item of the ordered stack of audio playlist items, wherein the second item is fully displayed; 
 receiving a second input in the first direction; and 
 in response to receiving the second input:
 based on a determination that the second item is a terminal item in the ordered stack of audio playlist items, concurrently displaying, on the display, at least one audio playlist item of the ordered stack of audio playlist items and at least one menu affordance of a plurality of menu affordances, wherein the at least one menu affordance is displayed as graphically separate from the ordered stack of audio playlist items, wherein the terminal item is an item in a first position or a last position of the ordered stack of audio playlist items, and wherein each menu affordance of the plurality of menu affordances is configured to, when activated via a user gesture corresponding to selection of a respective menu affordance, cause display of a second user interface, different from the first user interface, without initiating playback of a media item; and 
 based on a determination that the second item is an intermediate item in the ordered stack of audio playlist items, displaying, on the display, the third item of the ordered stack of audio playlist items, wherein the third item is fully displayed, and wherein the intermediate item is an item in the ordered stack of audio playlist items that is not the terminal item. 
 
 
     
     
       14. The non-transitory computer-readable storage medium of  claim 13 , wherein the electronic device further includes a rotatable input mechanism, and wherein:
 the first input is based on a movement of the rotatable input mechanism in the first direction; and 
 the second input is based on a continued movement of the rotatable input mechanism in the first direction. 
 
     
     
       15. The non-transitory computer-readable storage medium of  claim 13 , wherein:
 the first input is a gesture on the touch-sensitive display corresponding to a finger scroll in the first direction; and 
 the second input is an additional finger scroll in the first direction. 
 
     
     
       16. The non-transitory computer-readable storage medium of  claim 13 , wherein the terminal item is the item in the first position of the ordered stack of audio playlist items. 
     
     
       17. The non-transitory computer-readable storage medium of  claim 13 , the one or more programs further including instructions for:
 while displaying, on the display, the ordered stack of audio playlist items, receiving user selection of the first item; 
 in response to receiving the user selection of the first item, displaying, on the display, a control user interface, wherein the control user interface includes an indication of a first audio item associated with the first item; and 
 causing audio output of the first audio item. 
 
     
     
       18. The non-transitory computer-readable storage medium of  claim 13 , the one or more programs further including instructions for:
 while displaying the at least one menu affordance of the plurality of menu affordances, receiving user selection of a first menu affordance of the plurality of menu affordances; 
 in response to receiving the user selection of the first menu affordance, displaying, on the display, the second user interface having a plurality of audio group affordances; 
 receiving user selection of a first audio group affordance of the plurality of audio group affordances; 
 in response to receiving the user selection of the first audio group affordance, displaying, on the display, one or more audio group items associated with the first audio group affordance; 
 receiving user selection of a first audio group item of the one or more audio group items; and 
 in response to receiving the user selection of the first audio group item:
 displaying, on the display, a control user interface, wherein the control user interface includes an indication of a first audio item of the first audio group item, and 
 causing audio output of the first audio item. 
 
 
     
     
       19. The non-transitory computer-readable storage medium of  claim 13 , the one or more programs further including instructions for:
 while displaying the at least one menu affordance of the plurality of menu affordances, receiving user selection of a first menu affordance of the plurality of menu affordances; 
 in response to receiving the user selection of the first menu affordance, displaying, on the display, the second user interface having a plurality of audio group affordances; 
 receiving user selection of a first audio group affordance of the plurality of audio group affordances; 
 in response to receiving the user selection of the first audio group affordance, displaying, on the display, one or more audio group items associated with the first audio group affordance; 
 receiving user selection of a first audio group item of the one or more audio group items; 
 in response to receiving the user selection of the first audio group item, displaying, on the display, one or more audio sub-group items associated with the first audio group item; 
 receiving user selection of a first audio sub-group item of the one or more audio sub-group items; and 
 in response to receiving the user selection of the first audio sub-group item:
 displaying, on the display, a control user interface, wherein the control user interface includes an indication of a first audio item of the first audio sub-group item, and 
 causing audio output of the first audio item. 
 
 
     
     
       20. The non-transitory computer-readable storage medium of  claim 13 , the one or more programs further including instructions for:
 in accordance with the determination that the second item is the intermediate item in the ordered stack of audio playlist items, displaying, on the display, the third item of the ordered stack of audio playlist items without displaying the at least one menu affordance of the plurality of menu affordances. 
 
     
     
       21. The non-transitory computer-readable storage medium of  claim 13 , the one or more programs further including instructions for:
 in accordance with the determination that the second item is the terminal item in the ordered stack of audio playlist items:
 while displaying the at least one menu affordance of the plurality of menu affordances, receiving a third input directed to a first menu affordance of the plurality of menu affordances; and 
 in response to receiving the third input, displaying, on the display, the second user interface without causing audio to be played. 
 
 
     
     
       22. The non-transitory computer-readable storage medium of  claim 13 , the one or more programs further including instructions for:
 in accordance with the determination that the second item is the intermediate item in the ordered stack of audio playlist items:
 while displaying the third item, receiving a fourth input directed to the third item of the ordered stack of audio playlist items; and 
 in response to detecting the fourth input, displaying, on the display, a third user interface, different from the first user interface and the second user interface, and causing audio corresponding to the third item to be played. 
 
 
     
     
       23. The non-transitory computer-readable storage medium of  claim 13 , wherein audio playlist items of the ordered stack of audio playlist items include a first size and a first appearance, and wherein the plurality of menu affordances includes a second size, different from the first size, and a second appearance, different from the first appearance. 
     
     
       24. The non-transitory computer-readable storage medium of  claim 13 , wherein the plurality of menu affordances includes a now playing affordance that, when activated via a user gesture, displays a control user interface for an audio item. 
     
     
       25. A method, comprising:
 at an electronic device with a touch-sensitive display:
 displaying, on the display, a first user interface having an ordered stack of audio playlist items, wherein the ordered stack of audio playlist items includes a first item, a second item, and a third item, wherein the first item is fully displayed and the first item at least partially obscures the second item and the third item, and wherein each audio playlist item of the ordered stack of audio playlist items is configured to, when activated via a user gesture corresponding to selection of a respective audio playlist item, initiate playback of a media item associated with the respective audio playlist item; 
 receiving a first input in a first direction; 
 in response to receiving the first input, displaying, on the display, the second item of the ordered stack of audio playlist items, wherein the second item is fully displayed; 
 receiving a second input in the first direction; and 
 in response to receiving the second input:
 based on a determination that the second item is a terminal item in the ordered stack of audio playlist items, concurrently displaying, on the display, at least one audio playlist item of the ordered stack of audio playlist items and at least one menu affordance of a plurality of menu affordances, wherein the at least one menu affordance is displayed as graphically separate from the ordered stack of audio playlist items, wherein the terminal item is an item in a first position or a last position of the ordered stack of audio playlist items, and wherein each menu affordance of the plurality of menu affordances is configured to, when activated via a user gesture corresponding to selection of a respective menu affordance, cause display of a second user interface, different from the first user interface, without initiating playback of a media item; and 
 based on a determination that the second item is an intermediate item in the ordered stack of audio playlist items, displaying, on the display, the third item of the ordered stack of audio playlist items, wherein the third item is fully displayed, and wherein the intermediate item is an item in the ordered stack of audio playlist items that is not the terminal item. 
 
 
 
     
     
       26. The method of  claim 25 , wherein the electronic device further includes a rotatable input mechanism, and wherein:
 the first input is based on a movement of the rotatable input mechanism in the first direction; and 
 the second input is based on a continued movement of the rotatable input mechanism in the first direction. 
 
     
     
       27. The method of  claim 25 , wherein:
 the first input is a gesture on the touch-sensitive display corresponding to a finger scroll in the first direction; and 
 the second input is an additional finger scroll in the first direction. 
 
     
     
       28. The method of  claim 25 , wherein the terminal item is the item in the first position of the ordered stack of audio playlist items. 
     
     
       29. The method of  claim 25 , further comprising:
 while displaying, on the display, the ordered stack of audio playlist items, receiving user selection of the first item; 
 in response to receiving the user selection of the first item, displaying, on the display, a control user interface, wherein the control user interface includes an indication of a first audio item associated with the first item; and 
 causing audio output of the first audio item. 
 
     
     
       30. The method of  claim 25 , further comprising:
 while displaying the at least one menu affordance of the plurality of menu affordances, receiving user selection of a first menu affordance of the plurality of menu affordances; 
 in response to receiving the user selection of the first menu affordance, displaying, on the display, the second user interface having a plurality of audio group affordances; 
 receiving user selection of a first audio group affordance of the plurality of audio group affordances; 
 in response to receiving the user selection of the first audio group affordance, displaying, on the display, one or more audio group items associated with the first audio group affordance; 
 receiving user selection of a first audio group item of the one or more audio group items; and 
 in response to receiving the user selection of the first audio group item:
 displaying, on the display, a control user interface, wherein the control user interface includes an indication of a first audio item of the first audio group item, and 
 causing audio output of the first audio item. 
 
 
     
     
       31. The method of  claim 25 , further comprising:
 while displaying the at least one menu affordance of the plurality of menu affordances, receiving user selection of a first menu affordance of the plurality of menu affordances; 
 in response to receiving the user selection of the first menu affordance, displaying, on the display, the second user interface having a plurality of audio group affordances; 
 receiving user selection of a first audio group affordance of the plurality of audio group affordances; 
 in response to receiving the user selection of the first audio group affordance, displaying, on the display, one or more audio group items associated with the first audio group affordance; 
 receiving user selection of a first audio group item of the one or more audio group items; 
 in response to receiving the user selection of the first audio group item, displaying, on the display, one or more audio sub-group items associated with the first audio group item; 
 receiving user selection of a first audio sub-group item of the one or more audio sub-group items; and 
 in response to receiving the user selection of the first audio sub-group item:
 displaying, on the display, a control user interface, wherein the control user interface includes an indication of a first audio item of the first audio sub-group item, and 
 causing audio output of the first audio item. 
 
 
     
     
       32. The method of  claim 25 , further comprising:
 in accordance with the determination that the second item is the intermediate item in the ordered stack of audio playlist items, displaying, on the display, the third item of the ordered stack of audio playlist items without displaying the at least one menu affordance of the plurality of menu affordances. 
 
     
     
       33. The method of  claim 25 , further comprising:
 in accordance with the determination that the second item is the terminal item in the ordered stack of audio playlist items:
 while displaying the at least one menu affordance of the plurality of menu affordances, receiving a third input directed to a first menu affordance of the plurality of menu affordances; and 
 in response to receiving the third input, displaying, on the display, the second user interface without causing audio to be played. 
 
 
     
     
       34. The method of  claim 25 , further comprising:
 in accordance with the determination that the second item is the intermediate item in the ordered stack of audio playlist items:
 while displaying the third item, receiving a fourth input directed to the third item of the ordered stack of audio playlist items; and 
 in response to detecting the fourth input, displaying, on the display, a third user interface, different from the first user interface and the second user interface, and causing audio corresponding to the third item to be played. 
 
 
     
     
       35. The method of  claim 25 , wherein audio playlist items of the ordered stack of audio playlist items include a first size and a first appearance, and wherein the plurality of menu affordances includes a second size, different from the first size, and a second appearance, different from the first appearance. 
     
     
       36. The method of  claim 25 , wherein the plurality of menu affordances includes a now playing affordance that, when activated via a user gesture, displays a control user interface for an audio item.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to U.S. Provisional Application Ser. No. 62/505,760, filed May 12, 2017, entitled “USER INTERFACES FOR PLAYING AND MANAGING AUDIO ITEMS,” which is hereby incorporated by reference in its entirety for all purposes. 
    
    
     FIELD 
     The present disclosure relates generally to computer user interfaces, and more specifically to techniques for playing and managing audio items. 
     BACKGROUND 
     Playing and managing audio items, such as music, using electronic devices is a common occurrence. Further, audio items are often played and managed across multiples devices. Sometimes, a device belonging to a user does not store all of the audio items belonging to the user. 
     BRIEF SUMMARY 
     Attempting to play and manage audio items while engaging in a physical activity such as commuting or exercising, in particular using a portable electronic device having a limited amount of display real estate, can still be a cumbersome task. This is even more so when owning more than one electronic device and audio items must be played and managed across devices. Therefore, faster, more efficient methods and interfaces for playing and managing audio items are needed. 
     Some techniques for playing and managing audio items using electronic devices, however, are generally cumbersome and inefficient. For example, some existing techniques use a complex and time-consuming user interface, which may include multiple key presses or keystrokes. Existing techniques require more time than necessary, wasting user time and device energy. This latter consideration is particularly important in battery-operated devices. 
     Accordingly, the present technique provides electronic devices with faster, more efficient methods and interfaces for playing and managing audio items. Such methods and interfaces optionally complement or replace other methods for playing and managing audio items. Such methods and interfaces reduce the cognitive burden on a user and produce a more efficient human-machine interface. For battery-operated computing devices, such methods and interfaces conserve power and increase the time between battery charges. Such methods and interfaces also reduce the number of unnecessary, extraneous, or repetitive input required at computing devices, such as smartphones and smartwatches. 
     In accordance with some embodiments, a method performed at an electronic device with a touch-sensitive display is described. The method comprises: displaying, on the display, a first user interface, wherein the first user interface includes a scrollable plurality of audio playlist items associated with a plurality of audio playlists; receiving a first user input on a first audio playlist item of the plurality of audio playlist items; in response to receiving the first user input on the first audio playlist item: displaying, on the display, a second user interface, wherein the second user interface includes an indication of a first audio item of a first audio playlist associated with the first audio playlist item, and displaying, on the display, a plurality of indicia icons, wherein a first indicia icon associated with the second user interface includes an indication that the second user interface is currently displayed; receiving a second user input on the second user interface; and in response to receiving the second user input on the second user interface: displaying, on the display, a third user interface, wherein the third user interface includes a plurality of audio items of the first audio playlist, and updating display of the plurality of indicia icons, wherein a second indicia icon associated with the third user interface includes the indication that the third user interface is currently displayed. 
     In accordance with some embodiments, a non-transitory computer-readable storage medium is described. The non-transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processors of an electronic device with a touch-sensitive display, the one or more programs including instructions for: displaying, on the display, a first user interface, wherein the first user interface includes a scrollable plurality of audio playlist items associated with a plurality of audio playlists; receiving a first user input on a first audio playlist item of the plurality of audio playlist items; in response to receiving the first user input on the first audio playlist item: displaying, on the display, a second user interface, wherein the second user interface includes an indication of a first audio item of a first audio playlist associated with the first audio playlist item, and displaying, on the display, a plurality of indicia icons, wherein a first indicia icon associated with the second user interface includes an indication that the second user interface is currently displayed; receiving a second user input on the second user interface; and in response to receiving the second user input on the second user interface: displaying, on the display, a third user interface, wherein the third user interface includes a plurality of audio items of the first audio playlist, and updating display of the plurality of indicia icons, wherein a second indicia icon associated with the third user interface includes the indication that the third user interface is currently displayed. 
     In accordance with some embodiments, a transitory computer-readable storage medium is described. The transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processors of an electronic device with a touch-sensitive display, the one or more programs including instructions for: displaying, on the display, a first user interface, wherein the first user interface includes a scrollable plurality of audio playlist items associated with a plurality of audio playlists; receiving a first user input on a first audio playlist item of the plurality of audio playlist items; in response to receiving the first user input on the first audio playlist item: displaying, on the display, a second user interface, wherein the second user interface includes an indication of a first audio item of a first audio playlist associated with the first audio playlist item, and displaying, on the display, a plurality of indicia icons, wherein a first indicia icon associated with the second user interface includes an indication that the second user interface is currently displayed; receiving a second user input on the second user interface; and in response to receiving the second user input on the second user interface: displaying, on the display, a third user interface, wherein the third user interface includes a plurality of audio items of the first audio playlist, and updating display of the plurality of indicia icons, wherein a second indicia icon associated with the third user interface includes the indication that the third user interface is currently displayed. 
     In accordance with some embodiments, an electronic device is described. The electronic device comprises: a touch-sensitive display; one or more processors; and memory storing one or more programs configured to be executed by the one or more processors, the one or more programs including instructions for: displaying, on the display, a first user interface, wherein the first user interface includes a scrollable plurality of audio playlist items associated with a plurality of audio playlists; receiving a first user input on a first audio playlist item of the plurality of audio playlist items; in response to receiving the first user input on the first audio playlist item: displaying, on the display, a second user interface, wherein the second user interface includes an indication of a first audio item of a first audio playlist associated with the first audio playlist item, and displaying, on the display, a plurality of indicia icons, wherein a first indicia icon associated with the second user interface includes an indication that the second user interface is currently displayed; receiving a second user input on the second user interface; and in response to receiving the second user input on the second user interface: displaying, on the display, a third user interface, wherein the third user interface includes a plurality of audio items of the first audio playlist, and updating display of the plurality of indicia icons, wherein a second indicia icon associated with the third user interface includes the indication that the third user interface is currently displayed. 
     In accordance with some embodiments, an electronic device is described. The electronic device comprises: a touch-sensitive display; means for displaying, on the display, a first user interface, wherein the first user interface includes a scrollable plurality of audio playlist items associated with a plurality of audio playlists; means for receiving a first user input on a first audio playlist item of the plurality of audio playlist items; means, in response to receiving the first user input on the first audio playlist item, for: displaying, on the display, a second user interface, wherein the second user interface includes an indication of a first audio item of a first audio playlist associated with the first audio playlist item, and displaying, on the display, a plurality of indicia icons, wherein a first indicia icon associated with the second user interface includes an indication that the second user interface is currently displayed; means for receiving a second user input on the second user interface; and means, in response to receiving the second user input on the second user interface, for: displaying, on the display, a third user interface, wherein the third user interface includes a plurality of audio items of the first audio playlist, and updating display of the plurality of indicia icons, wherein a second indicia icon associated with the third user interface includes the indication that the third user interface is currently displayed. 
     In accordance with some embodiments, a method performed at an electronic device with a touch-sensitive display is described. The method comprises: displaying, on the display, an ordered stack of audio playlist items in a first position, wherein the ordered stack of audio playlist items includes a first item, a second item, and a third item, and wherein the first item is displayed in the first position; receiving a first input in a first direction; in response to receiving the first input, displaying, on the display, the ordered stack of audio playlist items in a second position, wherein the second item is displayed in the second position; receiving a second input in the first direction; and in response to receiving the second input: in accordance with a determination that the second item is a terminal item in the ordered stack of audio playlist items, displaying, on the display, at least one menu affordance of a plurality of menu affordances, and in accordance with a determination that the second item is an intermediate item in the ordered stack of audio playlist items, displaying, on the display, the ordered stack of audio playlist items in a third position, wherein the third item is displayed in the third position. 
     In accordance with some embodiments, a non-transitory computer-readable storage medium is described. The non-transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processors of an electronic device with a touch-sensitive display, the one or more programs including instructions for: displaying, on the display, an ordered stack of audio playlist items in a first position, wherein the ordered stack of audio playlist items includes a first item, a second item, and a third item, and wherein the first item is displayed in the first position; receiving a first input in a first direction; in response to receiving the first input, displaying, on the display, the ordered stack of audio playlist items in a second position, wherein the second item is displayed in the second position; receiving a second input in the first direction; and in response to receiving the second input: in accordance with a determination that the second item is a terminal item in the ordered stack of audio playlist items, displaying, on the display, at least one menu affordance of a plurality of menu affordances, and in accordance with a determination that the second item is an intermediate item in the ordered stack of audio playlist items, displaying, on the display, the ordered stack of audio playlist items in a third position, wherein the third item is displayed in the third position. 
     In accordance with some embodiments, a transitory computer-readable storage medium is described. The transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processors of an electronic device with a touch-sensitive display, the one or more programs including instructions for: displaying, on the display, an ordered stack of audio playlist items in a first position, wherein the ordered stack of audio playlist items includes a first item, a second item, and a third item, and wherein the first item is displayed in the first position; receiving a first input in a first direction; in response to receiving the first input, displaying, on the display, the ordered stack of audio playlist items in a second position, wherein the second item is displayed in the second position; receiving a second input in the first direction; and in response to receiving the second input: in accordance with a determination that the second item is a terminal item in the ordered stack of audio playlist items, displaying, on the display, at least one menu affordance of a plurality of menu affordances, and in accordance with a determination that the second item is an intermediate item in the ordered stack of audio playlist items, displaying, on the display, the ordered stack of audio playlist items in a third position, wherein the third item is displayed in the third position. 
     In accordance with some embodiments, an electronic device is described. The electronic device comprises: a touch-sensitive display; one or more processors; and memory storing one or more programs configured to be executed by the one or more processors, the one or more programs including instructions for: displaying, on the display, an ordered stack of audio playlist items in a first position, wherein the ordered stack of audio playlist items includes a first item, a second item, and a third item, and wherein the first item is displayed in the first position; receiving a first input in a first direction; in response to receiving the first input, displaying, on the display, the ordered stack of audio playlist items in a second position, wherein the second item is displayed in the second position; receiving a second input in the first direction; and in response to receiving the second input: in accordance with a determination that the second item is a terminal item in the ordered stack of audio playlist items, displaying, on the display, at least one menu affordance of a plurality of menu affordances, and in accordance with a determination that the second item is an intermediate item in the ordered stack of audio playlist items, displaying, on the display, the ordered stack of audio playlist items in a third position, wherein the third item is displayed in the third position. 
     In accordance with some embodiments, an electronic device is described. The electronic device comprises: a touch-sensitive display; means for displaying, on the display, an ordered stack of audio playlist items in a first position, wherein the ordered stack of audio playlist items includes a first item, a second item, and a third item, and wherein the first item is displayed in the first position; means for receiving a first input in a first direction; means, in response to receiving the first input, for displaying, on the display, the ordered stack of audio playlist items in a second position, wherein the second item is displayed in the second position; means for receiving a second input in the first direction; and means, in response to receiving the second input, for: in accordance with a determination that the second item is a terminal item in the ordered stack of audio playlist items, displaying, on the display, at least one menu affordance of a plurality of menu affordances, and in accordance with a determination that the second item is an intermediate item in the ordered stack of audio playlist items, displaying, on the display, the ordered stack of audio playlist items in a third position, wherein the third item is displayed in the third position. 
     In accordance with some embodiments, a method performed at an electronic device with a touch-sensitive display is described. The method comprises: receiving user input initiating a first application while a second application different from the first application is active on the electronic device; displaying, on the display, a first user interface associated with the first application and a first affordance associated with the second application; receiving user selection of the first affordance; in response to receiving the user selection of the first affordance: replacing display of the first user interface with display of a second user interface associated with the second application, wherein the first application remains active on the electronic device, and replacing display of the first affordance with display of a second affordance associated with the first application. 
     In accordance with some embodiments, a non-transitory computer-readable storage medium is described. The non-transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processors of an electronic device with a touch-sensitive display, the one or more programs including instructions for: receiving user input initiating a first application while a second application different from the first application is active on the electronic device; displaying, on the display, a first user interface associated with the first application and a first affordance associated with the second application; receiving user selection of the first affordance; in response to receiving the user selection of the first affordance: replacing display of the first user interface with display of a second user interface associated with the second application, wherein the first application remains active on the electronic device, and replacing display of the first affordance with display of a second affordance associated with the first application. 
     In accordance with some embodiments, a transitory computer-readable storage medium is described. The transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processors of an electronic device with a touch-sensitive display, the one or more programs including instructions for: receiving user input initiating a first application while a second application different from the first application is active on the electronic device; displaying, on the display, a first user interface associated with the first application and a first affordance associated with the second application; receiving user selection of the first affordance; in response to receiving the user selection of the first affordance: replacing display of the first user interface with display of a second user interface associated with the second application, wherein the first application remains active on the electronic device, and replacing display of the first affordance with display of a second affordance associated with the first application. 
     In accordance with some embodiments, an electronic device is described. The electronic device comprises: a touch-sensitive display; one or more processors; and memory storing one or more programs configured to be executed by the one or more processors, the one or more programs including instructions for: receiving user input initiating a first application while a second application different from the first application is active on the electronic device; displaying, on the display, a first user interface associated with the first application and a first affordance associated with the second application; receiving user selection of the first affordance; in response to receiving the user selection of the first affordance: replacing display of the first user interface with display of a second user interface associated with the second application, wherein the first application remains active on the electronic device, and replacing display of the first affordance with display of a second affordance associated with the first application. 
     In accordance with some embodiments, an electronic device is described. The electronic device comprises: a touch-sensitive display; means for receiving user input initiating a first application while a second application different from the first application is active on the electronic device; means for displaying, on the display, a first user interface associated with the first application and a first affordance associated with the second application; means for receiving user selection of the first affordance; means in response to receiving the user selection of the first affordance, for: replacing display of the first user interface with display of a second user interface associated with the second application, wherein the first application remains active on the electronic device, and replacing display of the first affordance with display of a second affordance associated with the first application. 
     In accordance with some embodiments, a method performed at an electronic device with a touch-sensitive display and a wireless communication radio is described. The method comprises: displaying, on the display, a user interface including a plurality of item groups and a plurality of selection affordances associated with the plurality of item groups, wherein a selection affordance has a first state and a second state, and wherein data of the plurality of item groups are stored on the electronic device; receiving user input on a first selection affordance associated with a first item group; in accordance with a determination that the first selection affordance is in the first state, designating the first item group; in accordance with a determination that the first selection affordance is in the second state, forgoing designating the first item group; subsequent to detecting, via the wireless communication radio, an external device: in accordance with a determination that the first item group is designated, automatically transmitting data of the items associated with the first item group to the external device to be stored on the external device, and in accordance with a determination that the first item group is not designated, forgoing to automatically transmit data of the items associated with the first item group to the external device to be stored on the external device. 
     In accordance with some embodiments, a non-transitory computer-readable storage medium is described. The non-transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processors of an electronic device with a touch-sensitive display and a wireless communication radio, the one or more programs including instructions for: displaying, on the display, a user interface including a plurality of item groups and a plurality of selection affordances associated with the plurality of item groups, wherein a selection affordance has a first state and a second state, and wherein data of the plurality of item groups are stored on the electronic device; receiving user input on a first selection affordance associated with a first item group; in accordance with a determination that the first selection affordance is in the first state, designating the first item group; in accordance with a determination that the first selection affordance is in the second state, forgoing designating the first item group; subsequent to detecting, via the wireless communication radio, an external device: in accordance with a determination that the first item group is designated, automatically transmitting data of the items associated with the first item group to the external device to be stored on the external device, and in accordance with a determination that the first item group is not designated, forgoing to automatically transmit data of the items associated with the first item group to the external device to be stored on the external device. 
     In accordance with some embodiments, a transitory computer-readable storage medium is described. The transitory computer-readable storage medium storing one or more programs configured to be executed by one or more processors of an electronic device with a touch-sensitive display and a wireless communication radio, the one or more programs including instructions for: displaying, on the display, a user interface including a plurality of item groups and a plurality of selection affordances associated with the plurality of item groups, wherein a selection affordance has a first state and a second state, and wherein data of the plurality of item groups are stored on the electronic device; receiving user input on a first selection affordance associated with a first item group; in accordance with a determination that the first selection affordance is in the first state, designating the first item group; in accordance with a determination that the first selection affordance is in the second state, forgoing designating the first item group; subsequent to detecting, via the wireless communication radio, an external device: in accordance with a determination that the first item group is designated, automatically transmitting data of the items associated with the first item group to the external device to be stored on the external device, and in accordance with a determination that the first item group is not designated, forgoing to automatically transmit data of the items associated with the first item group to the external device to be stored on the external device. 
     In accordance with some embodiments, an electronic device is described. The electronic device comprises: a touch-sensitive display; a wireless communication radio; one or more processors; and memory storing one or more programs configured to be executed by the one or more processors, the one or more programs including instructions for: displaying, on the display, a user interface including a plurality of item groups and a plurality of selection affordances associated with the plurality of item groups, wherein a selection affordance has a first state and a second state, and wherein data of the plurality of item groups are stored on the electronic device; receiving user input on a first selection affordance associated with a first item group; in accordance with a determination that the first selection affordance is in the first state, designating the first item group; in accordance with a determination that the first selection affordance is in the second state, forgoing designating the first item group; subsequent to detecting, via the wireless communication radio, an external device: in accordance with a determination that the first item group is designated, automatically transmitting data of the items associated with the first item group to the external device to be stored on the external device, and in accordance with a determination that the first item group is not designated, forgoing to automatically transmit data of the items associated with the first item group to the external device to be stored on the external device. 
     In accordance with some embodiments, an electronic device is described. The electronic device comprises: a touch-sensitive display; a wireless communication radio; means for displaying, on the display, a user interface including a plurality of item groups and a plurality of selection affordances associated with the plurality of item groups, wherein a selection affordance has a first state and a second state, and wherein data of the plurality of item groups are stored on the electronic device; means for receiving user input on a first selection affordance associated with a first item group; means, in accordance with a determination that the first selection affordance is in the first state, for designating the first item group; means, in accordance with a determination that the first selection affordance is in the second state, for forgoing designating the first item group; means, subsequent to detecting, via the wireless communication radio, an external device, for: in accordance with a determination that the first item group is designated, automatically transmitting data of the items associated with the first item group to the external device to be stored on the external device, and in accordance with a determination that the first item group is not designated, forgoing to automatically transmit data of the items associated with the first item group to the external device to be stored on the external device. 
     Executable instructions for performing these functions are, optionally, included in a non-transitory computer-readable storage medium or other computer program product configured for execution by one or more processors. Executable instructions for performing these functions are, optionally, included in a transitory computer-readable storage medium or other computer program product configured for execution by one or more processors. 
     Thus, devices are provided with faster, more efficient methods and interfaces for playing and managing audio items, thereby increasing the effectiveness, efficiency, and user satisfaction with such devices. Such methods and interfaces may complement or replace other methods for playing and managing audio items. 
    
    
     
       DESCRIPTION OF THE FIGURES 
       For a better understanding of the various described embodiments, 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. 
         FIG. 5A  illustrates a personal electronic device in accordance with some embodiments. 
         FIG. 5B  is a block diagram illustrating a personal electronic device in accordance with some embodiments. 
         FIGS. 6A-6S  illustrate exemplary user interfaces for navigating an application for playing and managing audio items and managing storage of the audio items, in accordance with some embodiments. 
         FIGS. 7A-7C  are a flow diagram illustrating methods of navigating an application for playing and managing audio items and managing storage of the audio items, in accordance with some embodiments. 
         FIGS. 8A-8AC  illustrate exemplary user interfaces for navigating an application for playing and managing audio items using different techniques, in accordance with some embodiments. 
         FIGS. 9A-9D  are a flow diagram illustrating methods of user interfaces for navigating an application for playing and managing audio items using different techniques, in accordance with some embodiments. 
         FIGS. 10A-10H  illustrate exemplary user interfaces for easily transitioning amongst active applications, in accordance with some embodiments. 
         FIGS. 11A-11B  are a flow diagram illustrating methods of easily transitioning amongst active applications, in accordance with some embodiments. 
         FIGS. 12A-12AE  illustrate exemplary user interfaces for configuring and managing automatic transmission of audio-related data from one device to another device, in accordance with some embodiments. 
         FIGS. 13A-13C  are a flow diagram illustrating methods of configuring and managing automatic transmission of audio-related data from one device to another device, in accordance with some embodiments. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     The following description sets forth exemplary methods, parameters, and the like. It should be recognized, however, that such description is not intended as a limitation on the scope of the present disclosure but is instead provided as a description of exemplary embodiments. 
     There is a need for electronic devices that provide efficient methods and interfaces for playing and managing audio items. When playing and managing audio items (e.g., songs, radio stations, podcasts), a user is often engaged in a physical activity (e.g., walking, exercising, commuting, driving). When engaged in such physical activities, the user cannot easily devote full attention to playing and managing audio items. Such techniques can reduce the cognitive burden on a user who accesses audio items, thereby enhancing productivity. Further, such techniques can reduce processor and battery power otherwise wasted on redundant user inputs. 
     Below,  FIGS. 1A-1B, 2, 3, 4A-4B, and 5A-5B  provide a description of exemplary devices for performing the techniques for managing event notifications.  FIGS. 6A-6S  illustrate exemplary user interfaces for navigating an application for playing and managing audio items and managing storage of the audio items, in accordance with some embodiments.  FIGS. 7A-7C  are a flow diagram illustrating methods of navigating an application for playing and managing audio items and managing storage of the audio items, in accordance with some embodiments.  FIGS. 8A-8AC  illustrate exemplary user interfaces for navigating an application for playing and managing audio items using different techniques, in accordance with some embodiments.  FIGS. 9A-9D  are a flow diagram illustrating methods of user interfaces for navigating an application for playing and managing audio items using different techniques, in accordance with some embodiments.  FIGS. 10A-10H  illustrate exemplary user interfaces for easily transitioning amongst active applications, in accordance with some embodiments.  FIGS. 11A-11B  are a flow diagram illustrating methods of easily transitioning amongst active applications, in accordance with some embodiments.  FIGS. 12A-12AE  illustrate exemplary user interfaces for configuring and managing automatic transmission of audio-related data from one device to another device, in accordance with some embodiments.  FIGS. 13A-13C  are a flow diagram illustrating methods of configuring and managing automatic transmission of audio-related data from one device to another device, in accordance with some embodiments. 
     Although the following description uses terms “first,” “second,” etc. to describe various elements, these elements should not be limited by the terms. These terms are only used to distinguish one element from another. For example, a first touch could be termed a second touch, and, similarly, a second touch could be termed a first touch, without departing from the scope of the various described embodiments. The first touch and the second touch are both touches, but they are not the same touch. 
     The terminology used in the description of the various described embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various described embodiments 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. 
     The term “if” is, optionally, 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” is, optionally, 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 touchpads), are, optionally, 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 touchpad). 
     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 optionally includes 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 are executed on the device optionally 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 are, optionally, 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 optionally supports 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 display system  112  in accordance with some embodiments. Touch-sensitive display  112  is sometimes called a “touch screen” for convenience and is sometimes known as or called a “touch-sensitive display system.” Device  100  includes memory  102  (which optionally includes one or more computer-readable storage mediums), memory controller  122 , one or more processing units (CPUs)  120 , peripherals interface  118 , RF circuitry  108 , audio circuitry  110 , speaker  111 , microphone  113 , input/output (I/O) subsystem  106 , other input control devices  116 , and external port  124 . Device  100  optionally includes one or more optical sensors  164 . Device  100  optionally includes one or more contact intensity sensors  165  for detecting intensity of contacts on device  100  (e.g., a touch-sensitive surface such as touch-sensitive display system  112  of device  100 ). Device  100  optionally includes one or more tactile output generators  167  for generating tactile outputs on device  100  (e.g., generating tactile outputs on a touch-sensitive surface such as touch-sensitive display system  112  of device  100  or touchpad  355  of device  300 ). These components optionally communicate over one or more communication buses or signal lines  103 . 
     As used in the specification and claims, the term “intensity” of a contact on a touch-sensitive surface refers to the force or pressure (force per unit area) of a contact (e.g., a finger contact) on the touch-sensitive surface, or to a substitute (proxy) for the force or pressure of a contact on the touch-sensitive surface. The intensity of a contact has a range of values that includes at least four distinct values and more typically includes hundreds of distinct values (e.g., at least 256). Intensity of a contact is, optionally, determined (or measured) using various approaches and various sensors or combinations of sensors. For example, one or more force sensors underneath or adjacent to the touch-sensitive surface are, optionally, used to measure force at various points on the touch-sensitive surface. In some implementations, force measurements from multiple force sensors are combined (e.g., a weighted average) to determine an estimated force of a contact. Similarly, a pressure-sensitive tip of a stylus is, optionally, used to determine a pressure of the stylus on the touch-sensitive surface. Alternatively, the size of the contact area detected on the touch-sensitive surface and/or changes thereto, the capacitance of the touch-sensitive surface proximate to the contact and/or changes thereto, and/or the resistance of the touch-sensitive surface proximate to the contact and/or changes thereto are, optionally, used as a substitute for the force or pressure of the contact on the touch-sensitive surface. In some implementations, the substitute measurements for contact force or pressure are used directly to determine whether an intensity threshold has been exceeded (e.g., the intensity threshold is described in units corresponding to the substitute measurements). In some implementations, the substitute measurements for contact force or pressure are converted to an estimated force or pressure, and the estimated force or pressure is used to determine whether an intensity threshold has been exceeded (e.g., the intensity threshold is a pressure threshold measured in units of pressure). Using the intensity of a contact as an attribute of a user input allows for user access to additional device functionality that may otherwise not be accessible by the user on a reduced-size device with limited real estate for displaying affordances (e.g., on a touch-sensitive display) and/or receiving user input (e.g., via a touch-sensitive display, a touch-sensitive surface, or a physical/mechanical control such as a knob or a button). 
     As used in the specification and claims, the term “tactile output” refers to physical displacement of a device relative to a previous position of the device, physical displacement of a component (e.g., a touch-sensitive surface) of a device relative to another component (e.g., housing) of the device, or displacement of the component relative to a center of mass of the device that will be detected by a user with the user&#39;s sense of touch. For example, in situations where the device or the component of the device is in contact with a surface of a user that is sensitive to touch (e.g., a finger, palm, or other part of a user&#39;s hand), the tactile output generated by the physical displacement will be interpreted by the user as a tactile sensation corresponding to a perceived change in physical characteristics of the device or the component of the device. For example, movement of a touch-sensitive surface (e.g., a touch-sensitive display or trackpad) is, optionally, interpreted by the user as a “down click” or “up click” of a physical actuator button. In some cases, a user will feel a tactile sensation such as an “down click” or “up click” even when there is no movement of a physical actuator button associated with the touch-sensitive surface that is physically pressed (e.g., displaced) by the user&#39;s movements. As another example, movement of the touch-sensitive surface is, optionally, interpreted or sensed by the user as “roughness” of the touch-sensitive surface, even when there is no change in smoothness of the touch-sensitive surface. While such interpretations of touch by a user will be subject to the individualized sensory perceptions of the user, there are many sensory perceptions of touch that are common to a large majority of users. Thus, when a tactile output is described as corresponding to a particular sensory perception of a user (e.g., an “up click,” a “down click,” “roughness”), unless otherwise stated, the generated tactile output corresponds to physical displacement of the device or a component thereof that will generate the described sensory perception for a typical (or average) user. 
     It should be appreciated that device  100  is only one example of a portable multifunction device, and that device  100  optionally has more or fewer components than shown, optionally combines two or more components, or optionally has a different configuration or arrangement of the components. The various components shown in  FIG. 1A  are 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  optionally includes high-speed random access memory and optionally also includes non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Memory controller  122  optionally controls access to memory  102  by other components of device  100 . 
     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  are, optionally, implemented on a single chip, such as chip  104 . In some other embodiments, they are, optionally, 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  optionally includes 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  optionally communicates 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 RF circuitry  108  optionally includes well-known circuitry for detecting near field communication (NFC) fields, such as by a short-range communication radio. The wireless communication optionally uses 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), Evolution, Data-Only (EV-DO), HSPA, HSPA+, Dual-Cell HSPA (DC-HSPDA), long term evolution (LTE), near field communication (NFC), wideband code division multiple access (W-CDMA), code division multiple access (CDMA), time division multiple access (TDMA), Bluetooth, Bluetooth Low Energy (BTLE), Wireless Fidelity (Wi-Fi) (e.g., IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, and/or IEEE 802.11ac), voice over Internet Protocol (VoW), 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 is, optionally, 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  optionally includes display controller  156 , optical sensor controller  158 , intensity sensor controller  159 , haptic feedback controller  161 , 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 control devices  116 . The other input control devices  116  optionally 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  are, optionally, coupled to any (or none) of the following: a keyboard, an infrared port, a USB port, and a pointer device such as a mouse. The one or more buttons (e.g.,  208 ,  FIG. 2 ) optionally include an up/down button for volume control of speaker  111  and/or microphone  113 . The one or more buttons optionally include a push button (e.g.,  206 ,  FIG. 2 ). 
     A quick press of the push button optionally disengages a lock of touch screen  112  or optionally begins a process that uses gestures on the touch screen to unlock the device, as described in U.S. patent application Ser. No. 11/322,549, “Unlocking a Device by Performing Gestures on an Unlock Image,” filed Dec. 23, 2005, U.S. Pat. No. 7,657,849, which is hereby incorporated by reference in its entirety. A longer press of the push button (e.g.,  206 ) optionally turns power to device  100  on or off. The functionality of one or more of the buttons are, optionally, user-customizable. Touch screen  112  is used to implement virtual or soft buttons and one or more soft keyboards. 
     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 optionally includes graphics, text, icons, video, and any combination thereof (collectively termed “graphics”). In some embodiments, some or all of the visual output optionally corresponds 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 convert 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  optionally uses LCD (liquid crystal display) technology, LPD (light emitting polymer display) technology, or LED (light emitting diode) technology, although other display technologies are used in other embodiments. Touch screen  112  and display controller  156  optionally 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® and iPod Touch® from Apple Inc. of Cupertino, Calif. 
     A touch-sensitive display in some embodiments of touch screen  112  is, optionally, analogous to the multi-touch sensitive touchpads described in the following U.S. Pat. No. 6,323,846 (Westerman et al.), U.S. Pat. No. 6,570,557 (Westerman et al.), and/or U.S. Pat. No. 6,677,932 (Westerman), and/or U.S. Patent Publication 2002/0015024A1, each of which is hereby incorporated by reference in its entirety. However, touch screen  112  displays visual output from device  100 , whereas touch-sensitive touchpads do not provide visual output. 
     A touch-sensitive display in some embodiments of touch screen  112  is described in the following applications: (1) U.S. patent application Ser. No. 11/381,313, “Multipoint Touch Surface Controller,” filed May 2, 2006; (2) U.S. patent application Ser. No. 10/840,862, “Multipoint Touchscreen,” filed May 6, 2004; (3) U.S. patent application Ser. No. 10/903,964, “Gestures For Touch Sensitive Input Devices,” filed Jul. 30, 2004; (4) U.S. patent application Ser. No. 11/048,264, “Gestures For Touch Sensitive Input Devices,” filed Jan. 31, 2005; (5) U.S. patent application Ser. No. 11/038,590, “Mode-Based Graphical User Interfaces For Touch Sensitive Input Devices,” filed Jan. 18, 2005; (6) U.S. patent application Ser. No. 11/228,758, “Virtual Input Device Placement On A Touch Screen User Interface,” filed Sep. 16, 2005; (7) U.S. patent application Ser. No. 11/228,700, “Operation Of A Computer With A Touch Screen Interface,” filed Sep. 16, 2005; (8) U.S. patent application Ser. No. 11/228,737, “Activating Virtual Keys Of A Touch-Screen Virtual Keyboard,” filed Sep. 16, 2005; and (9) U.S. patent application Ser. No. 11/367,749, “Multi-Functional Hand-Held Device,” filed Mar. 3, 2006. All of these applications are incorporated by reference herein in their entirety. 
     Touch screen  112  optionally has a video resolution in excess of 100 dpi. In some embodiments, the touch screen has a video resolution of approximately 160 dpi. The user optionally makes 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  optionally includes 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 is, optionally, 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  optionally includes 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  optionally also includes 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  optionally includes charge-coupled device (CCD) or complementary metal-oxide semiconductor (CMOS) phototransistors. Optical sensor  164  receives light from the environment, projected through one or more lenses, and converts the light to data representing an image. In conjunction with imaging module  143  (also called a camera module), optical sensor  164  optionally captures 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 is enabled for use as a viewfinder for still and/or video image acquisition. In some embodiments, an optical sensor is located on the front of the device so that the user&#39;s image is, optionally, obtained for video conferencing while the user views the other video conference participants on the touch screen display. In some embodiments, the position of optical sensor  164  can be changed by the user (e.g., by rotating the lens and the sensor in the device housing) so that a single optical sensor  164  is used along with the touch screen display for both video conferencing and still and/or video image acquisition. 
     Device  100  optionally also includes one or more contact intensity sensors  165 .  FIG. 1A  shows a contact intensity sensor coupled to intensity sensor controller  159  in I/O subsystem  106 . Contact intensity sensor  165  optionally includes one or more piezoresistive strain gauges, capacitive force sensors, electric force sensors, piezoelectric force sensors, optical force sensors, capacitive touch-sensitive surfaces, or other intensity sensors (e.g., sensors used to measure the force (or pressure) of a contact on a touch-sensitive surface). Contact intensity sensor  165  receives contact intensity information (e.g., pressure information or a proxy for pressure information) from the environment. In some embodiments, at least one contact intensity sensor is collocated with, or proximate to, a touch-sensitive surface (e.g., touch-sensitive display system  112 ). In some embodiments, at least one contact intensity sensor is located on the back of device  100 , opposite touch screen display  112 , which is located on the front of device  100 . 
     Device  100  optionally also includes one or more proximity sensors  166 .  FIG. 1A  shows proximity sensor  166  coupled to peripherals interface  118 . Alternately, proximity sensor  166  is, optionally, coupled to input controller  160  in I/O subsystem  106 . Proximity sensor  166  optionally performs as described in U.S. patent application Ser. No. 11/241,839, “Proximity Detector In Handheld Device”; Ser. No. 11/240,788, “Proximity Detector In Handheld Device”; Ser. No. 11/620,702, “Using Ambient Light Sensor To Augment Proximity Sensor Output”; Ser. No. 11/586,862, “Automated Response To And Sensing Of User Activity In Portable Devices”; and Ser. No. 11/638,251, “Methods And Systems For Automatic Configuration Of Peripherals,” which are hereby incorporated by reference in their entirety. In some embodiments, the proximity sensor turns off and disables 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  optionally also includes one or more tactile output generators  167 .  FIG. 1A  shows a tactile output generator coupled to haptic feedback controller  161  in I/O subsystem  106 . Tactile output generator  167  optionally includes one or more electroacoustic devices such as speakers or other audio components and/or electromechanical devices that convert energy into linear motion such as a motor, solenoid, electroactive polymer, piezoelectric actuator, electrostatic actuator, or other tactile output generating component (e.g., a component that converts electrical signals into tactile outputs on the device). Contact intensity sensor  165  receives tactile feedback generation instructions from haptic feedback module  133  and generates tactile outputs on device  100  that are capable of being sensed by a user of device  100 . In some embodiments, at least one tactile output generator is collocated with, or proximate to, a touch-sensitive surface (e.g., touch-sensitive display system  112 ) and, optionally, generates a tactile output by moving the touch-sensitive surface vertically (e.g., in/out of a surface of device  100 ) or laterally (e.g., back and forth in the same plane as a surface of device  100 ). In some embodiments, at least one tactile output generator sensor is located on the back of device  100 , opposite touch screen display  112 , which is located on the front of device  100 . 
     Device  100  optionally also includes one or more accelerometers  168 .  FIG. 1A  shows accelerometer  168  coupled to peripherals interface  118 . Alternately, accelerometer  168  is, optionally, coupled to an input controller  160  in I/O subsystem  106 . Accelerometer  168  optionally performs as described in U.S. Patent Publication No. 20050190059, “Acceleration-based Theft Detection System for Portable Electronic Devices,” and U.S. Patent Publication No. 20060017692, “Methods And Apparatuses For Operating A Portable Device Based On An Accelerometer,” both of which are incorporated by reference herein in their entirety. In some embodiments, information is displayed on the touch screen display in a portrait view or a landscape view based on an analysis of data received from the one or more accelerometers. 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  ( FIG. 1A ) or  370  ( FIG. 3 ) 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, iOS, 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  optionally detects 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 an intensity of the contact (e.g., the force or pressure of the contact or a substitute for the force or pressure of the contact), 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, optionally includes 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 are, optionally, 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. 
     In some embodiments, contact/motion module  130  uses a set of one or more intensity thresholds to determine whether an operation has been performed by a user (e.g., to determine whether a user has “clicked” on an icon). In some embodiments, at least a subset of the intensity thresholds are determined in accordance with software parameters (e.g., the intensity thresholds are not determined by the activation thresholds of particular physical actuators and can be adjusted without changing the physical hardware of device  100 ). For example, a mouse “click” threshold of a trackpad or touch screen display can be set to any of a large range of predefined threshold values without changing the trackpad or touch screen display hardware. Additionally, in some implementations, a user of the device is provided with software settings for adjusting one or more of the set of intensity thresholds (e.g., by adjusting individual intensity thresholds and/or by adjusting a plurality of intensity thresholds at once with a system-level click “intensity” parameter). 
     Contact/motion module  130  optionally detects a gesture input by a user. Different gestures on the touch-sensitive surface have different contact patterns (e.g., different motions, timings, and/or intensities of detected contacts). Thus, a gesture is, optionally, 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 (liftoff) 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 (liftoff) 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 visual impact (e.g., brightness, transparency, saturation, contrast, or other visual property) 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 is, optionally, 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 . 
     Haptic feedback module  133  includes various software components for generating instructions used by tactile output generator(s)  167  to produce tactile outputs at one or more locations on device  100  in response to user interactions with device  100 . 
     Text input module  134 , which is, optionally, 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  optionally 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 conference 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 ;   Video player module;   Music player module;   Browser module  147 ;   Calendar module  148 ;   Widget modules  149 , which optionally 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 merges video player module and music player module;   Notes module  153 ;   Map module  154 ; and/or   Online video module  155 .       

     Examples of other applications  136  that are, optionally, 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/motion module  130 , graphics module  132 , and text input module  134 , contacts module  137  are, optionally, 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 module  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/motion module  130 , graphics module  132 , and text input module  134 , telephone module  138  are optionally, used to enter a sequence of characters corresponding to a telephone number, access one or more telephone numbers in contacts module  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 optionally uses 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/motion module  130 , graphics module  132 , text input module  134 , contacts module  137 , and telephone module  138 , video conference 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/motion 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/motion 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 optionally include graphics, photos, audio files, video files and/or other attachments as are supported in an 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/motion module  130 , graphics module  132 , text input module  134 , GPS module  135 , map module  154 , and music player module, 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/motion 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/motion 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 controller  156 , contact/motion 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 controller  156 , contact/motion 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 controller  156 , contact/motion module  130 , graphics module  132 , text input module  134 , and browser module  147 , widget modules  149  are mini-applications that are, optionally, 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 controller  156 , contact/motion module  130 , graphics module  132 , text input module  134 , and browser module  147 , the widget creator module  150  are, optionally, 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 controller  156 , contact/motion 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 controller  156 , contact/motion 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  optionally includes the functionality of an MP3 player, such as an iPod (trademark of Apple Inc.). 
     In conjunction with touch screen  112 , display controller  156 , contact/motion 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 controller  156 , contact/motion module  130 , graphics module  132 , text input module  134 , GPS module  135 , and browser module  147 , map module  154  are, optionally, 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 controller  156 , contact/motion 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. Additional description of the online video application can be found in U.S. Provisional Patent Application No. 60/936,562, “Portable Multifunction Device, Method, and Graphical User Interface for Playing Online Videos,” filed Jun. 20, 2007, and U.S. patent application Ser. No. 11/968,067, “Portable Multifunction Device, Method, and Graphical User Interface for Playing Online Videos,” filed Dec. 31, 2007, the contents of which are hereby incorporated by reference in their entirety. 
     Each of the above-identified modules and applications corresponds 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 (e.g., sets of instructions) need not be implemented as separate software programs, procedures, or modules, and thus various subsets of these modules are, optionally, combined or otherwise rearranged in various embodiments. For example, video player module is, optionally, combined with music player module into a single module (e.g., video and music player module  152 ,  FIG. 1A ). In some embodiments, memory  102  optionally stores a subset of the modules and data structures identified above. Furthermore, memory  102  optionally stores 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  is, optionally, reduced. 
     The predefined set of functions that are performed exclusively through a touch screen and/or a touchpad optionally 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 is displayed on device  100 . In such embodiments, a “menu button” is implemented using a touchpad. In some other embodiments, the menu button is a physical push button or other physical input control device instead of a touchpad. 
       FIG. 1B  is a block diagram illustrating exemplary components for event handling in accordance with some embodiments. In some embodiments, memory  102  ( FIG. 1A ) 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, peripherals 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 optionally 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 is, optionally, called the hit view, and the set of events that are recognized as proper inputs are, optionally, 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 (e.g., 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  172 , 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  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  optionally utilizes or calls 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  include 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 optionally 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 optionally also includes 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 liftoff (touch end) for a predetermined phase, a second touch (touch begin) on the displayed object for a predetermined phase, and a second liftoff (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 liftoff 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 interact, or are enabled to 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. In some embodiments, object updater  177  creates and updates objects used in application  136 - 1 . For example, object updater  177  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. For example, mouse movement and mouse button presses, optionally coordinated with single or multiple keyboard presses or holds; contact movements such as taps, drags, scrolls, etc. on touchpads; pen stylus inputs; movement of the device; oral instructions; detected eye movements; biometric inputs; and/or any combination thereof are optionally 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 optionally displays one or more graphics within user interface (UI)  200 . In this embodiment, as well as others described below, a user is enabled to 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 optionally includes 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 implementations or circumstances, inadvertent contact with a graphic does not select the graphic. For example, a swipe gesture that sweeps over an application icon optionally does not select the corresponding application when the gesture corresponding to selection is a tap. 
     Device  100  optionally also include one or more physical buttons, such as “home” or menu button  204 . As described previously, menu button  204  is, optionally, used to navigate to any application  136  in a set of applications that are, optionally, 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 some embodiments, 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 , headset jack  212 , and docking/charging external port  124 . Push button  206  is, optionally, 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 accepts verbal input for activation or deactivation of some functions through microphone  113 . Device  100  also, optionally, includes one or more contact intensity sensors  165  for detecting intensity of contacts on touch screen  112  and/or one or more tactile output generators  167  for generating tactile outputs for a user of device  100 . 
       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 (CPUs)  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  optionally 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 optionally includes a keyboard and/or mouse (or other pointing device)  350  and touchpad  355 , tactile output generator  357  for generating tactile outputs on device  300  (e.g., similar to tactile output generator(s)  167  described above with reference to  FIG. 1A ), sensors  359  (e.g., optical, acceleration, proximity, touch-sensitive, and/or contact intensity sensors similar to contact intensity sensor(s)  165  described above with reference to  FIG. 1A ). Memory  370  includes high-speed random access memory, such as DRAM, SRAM, DDR RAM, or other random access solid state memory devices; and optionally includes 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  optionally includes 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. 1A ), or a subset thereof. Furthermore, memory  370  optionally stores additional programs, modules, and data structures not present in memory  102  of portable multifunction device  100 . For example, memory  370  of device  300  optionally stores 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. 1A ) optionally does not store these modules. 
     Each of the above-identified elements in  FIG. 3  is, optionally, 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 (e.g., sets of instructions) need not be implemented as separate software programs, procedures, or modules, and thus various subsets of these modules are, optionally, combined or otherwise rearranged in various embodiments. In some embodiments, memory  370  optionally stores a subset of the modules and data structures identified above. Furthermore, memory  370  optionally stores additional modules and data structures not described above. 
     Attention is now directed towards embodiments of user interfaces that are, optionally, implemented on, for example, 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 are, optionally, 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:
           Icon  416  for telephone module  138 , labeled “Phone,” which optionally includes an indicator  414  of the number of missed calls or voicemail messages;   Icon  418  for e-mail client module  140 , labeled “Mail,” which optionally includes an indicator  410  of the number of unread e-mails;   Icon  420  for browser module  147 , labeled “Browser;” and   Icon  422  for video and music player module  152 , also referred to as iPod (trademark of Apple Inc.) module  152 , labeled “iPod;” and   
           Icons for other applications, such as:
           Icon  424  for IM module  141 , labeled “Messages;”   Icon  426  for calendar module  148 , labeled “Calendar;”   Icon  428  for image management module  144 , labeled “Photos;”   Icon  430  for camera module  143 , labeled “Camera;”   Icon  432  for online video module  155 , labeled “Online Video;”   Icon  434  for stocks widget  149 - 2 , labeled “Stocks;”   Icon  436  for map module  154 , labeled “Maps;”   Icon  438  for weather widget  149 - 1 , labeled “Weather;”   Icon  440  for alarm clock widget  149 - 4 , labeled “Clock;”   Icon  442  for workout support module  142 , labeled “Workout Support;”   Icon  444  for notes module  153 , labeled “Notes;” and   Icon  446  for a settings application or module, labeled “Settings,” which provides access to settings for device  100  and its various applications  136 .   
               

     It should be noted that the icon labels illustrated in  FIG. 4A  are merely exemplary. For example, icon  422  for video and music player module  152  is labeled “Music” or “Music Player.” Other labels are, optionally, used for various application icons. In some embodiments, a label for a respective application icon includes a name of an application corresponding to the respective application icon. In some embodiments, a label for a particular application icon is distinct from a name of an application corresponding to the particular application icon. 
       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 ). Device  300  also, optionally, includes one or more contact intensity sensors (e.g., one or more of sensors  359 ) for detecting intensity of contacts on touch-sensitive surface  451  and/or one or more tactile output generators  357  for generating tactile outputs for a user of device  300 . 
     Although some of the examples that 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 are, optionally, used for other user interfaces described herein. 
     Additionally, while the following examples are given primarily with reference to finger inputs (e.g., finger contacts, finger tap gestures, finger swipe gestures), it should be understood that, in some embodiments, one or more of the finger inputs are replaced with input from another input device (e.g., a mouse-based input or stylus input). For example, a swipe gesture is, optionally, replaced with a mouse click (e.g., instead of a contact) followed by movement of the cursor along the path of the swipe (e.g., instead of movement of the contact). As another example, a tap gesture is, optionally, replaced with a mouse click while the cursor is located over the location of the tap gesture (e.g., instead of detection of the contact followed by ceasing to detect the contact). Similarly, when multiple user inputs are simultaneously detected, it should be understood that multiple computer mice are, optionally, used simultaneously, or a mouse and finger contacts are, optionally, used simultaneously. 
       FIG. 5A  illustrates exemplary personal electronic device  500 . Device  500  includes body  502 . In some embodiments, device  500  can include some or all of the features described with respect to devices  100  and  300  (e.g.,  FIGS. 1A-4B ). In some embodiments, device  500  has touch-sensitive display screen  504 , hereafter touch screen  504 . Alternatively, or in addition to touch screen  504 , device  500  has a display and a touch-sensitive surface. As with devices  100  and  300 , in some embodiments, touch screen  504  (or the touch-sensitive surface) optionally includes one or more intensity sensors for detecting intensity of contacts (e.g., touches) being applied. The one or more intensity sensors of touch screen  504  (or the touch-sensitive surface) can provide output data that represents the intensity of touches. The user interface of device  500  can respond to touches based on their intensity, meaning that touches of different intensities can invoke different user interface operations on device  500 . 
     Exemplary techniques for detecting and processing touch intensity are found, for example, in related applications: International Patent Application Serial No. PCT/US2013/040061, titled “Device, Method, and Graphical User Interface for Displaying User Interface Objects Corresponding to an Application,” filed May 8, 2013, published as WIPO Publication No. WO/2013/169849, and International Patent Application Serial No. PCT/US2013/069483, titled “Device, Method, and Graphical User Interface for Transitioning Between Touch Input to Display Output Relationships,” filed Nov. 11, 2013, published as WIPO Publication No. WO/2014/105276, each of which is hereby incorporated by reference in their entirety. 
     In some embodiments, device  500  has one or more input mechanisms  506  and  508 . Input mechanisms  506  and  508 , if included, can be physical. Examples of physical input mechanisms include push buttons and rotatable mechanisms. In some embodiments, device  500  has one or more attachment mechanisms. Such attachment mechanisms, if included, can permit attachment of device  500  with, for example, hats, eyewear, earrings, necklaces, shirts, jackets, bracelets, watch straps, chains, trousers, belts, shoes, purses, backpacks, and so forth. These attachment mechanisms permit device  500  to be worn by a user. 
       FIG. 5B  depicts exemplary personal electronic device  500 . In some embodiments, device  500  can include some or all of the components described with respect to  FIGS. 1A, 1B , and  3 . Device  500  has bus  512  that operatively couples I/O section  514  with one or more computer processors  516  and memory  518 . I/O section  514  can be connected to display  504 , which can have touch-sensitive component  522  and, optionally, intensity sensor  524  (e.g., contact intensity sensor). In addition, I/O section  514  can be connected with communication unit  530  for receiving application and operating system data, using Wi-Fi, Bluetooth, near field communication (NFC), cellular, and/or other wireless communication techniques. Device  500  can include input mechanisms  506  and/or  508 . Input mechanism  506  is, optionally, a rotatable input device. Input mechanism  508  is, optionally, a button, in some examples. 
     Input mechanism  508  is, optionally, a microphone, in some examples. Personal electronic device  500  optionally includes various sensors, such as GPS sensor  532 , accelerometer  534 , directional sensor  540  (e.g., compass), gyroscope  536 , motion sensor  538 , and/or a combination thereof, all of which can be operatively connected to I/O section  514 . 
     Memory  518  of personal electronic device  500  can include one or more non-transitory computer-readable storage mediums, for storing computer-executable instructions, which, when executed by one or more computer processors  516 , for example, can cause the computer processors to perform the techniques described below, including processes  700 ,  900 ,  1100 , and  1300  ( FIGS. 7A-7C, 9A-9D, 11A-11B, and 13A-13C ). A computer-readable storage medium can be any medium that can tangibly contain or store computer-executable instructions for use by or in connection with the instruction execution system, apparatus, or device. In some examples, the storage medium is a transitory computer-readable storage medium. In some examples, the storage medium is a non-transitory computer-readable storage medium. The non-transitory computer-readable storage medium can include, but is not limited to, magnetic, optical, and/or semiconductor storages. Examples of such storage include magnetic disks, optical discs based on CD, DVD, or Blu-ray technologies, as well as persistent solid-state memory such as flash, solid-state drives, and the like. Personal electronic device  500  is not limited to the components and configuration of  FIG. 5B , but can include other or additional components in multiple configurations. 
     As used here, the term “affordance” refers to a user-interactive graphical user interface object that is, optionally, displayed on the display screen of devices  100 ,  300 , and/or  500  ( FIGS. 1A, 3, and 5A-5B ). For example, an image (e.g., icon), a button, and text (e.g., hyperlink) each optionally constitute an affordance. 
     As used herein, the term “focus selector” refers to an input element that indicates a current part of a user interface with which a user is interacting. In some implementations that include a cursor or other location marker, the cursor acts as a “focus selector” so that when an input (e.g., a press input) is detected on a touch-sensitive surface (e.g., touchpad  355  in  FIG. 3  or touch-sensitive surface  451  in  FIG. 4B ) while the cursor is over a particular user interface element (e.g., a button, window, slider, or other user interface element), the particular user interface element is adjusted in accordance with the detected input. In some implementations that include a touch screen display (e.g., touch-sensitive display system  112  in  FIG. 1A  or touch screen  112  in  FIG. 4A ) that enables direct interaction with user interface elements on the touch screen display, a detected contact on the touch screen acts as a “focus selector” so that when an input (e.g., a press input by the contact) is detected on the touch screen display at a location of a particular user interface element (e.g., a button, window, slider, or other user interface element), the particular user interface element is adjusted in accordance with the detected input. In some implementations, focus is moved from one region of a user interface to another region of the user interface without corresponding movement of a cursor or movement of a contact on a touch screen display (e.g., by using a tab key or arrow keys to move focus from one button to another button); in these implementations, the focus selector moves in accordance with movement of focus between different regions of the user interface. Without regard to the specific form taken by the focus selector, the focus selector is generally the user interface element (or contact on a touch screen display) that is controlled by the user so as to communicate the user&#39;s intended interaction with the user interface (e.g., by indicating, to the device, the element of the user interface with which the user is intending to interact). For example, the location of a focus selector (e.g., a cursor, a contact, or a selection box) over a respective button while a press input is detected on the touch-sensitive surface (e.g., a touchpad or touch screen) will indicate that the user is intending to activate the respective button (as opposed to other user interface elements shown on a display of the device). 
     As used in the specification and claims, the term “characteristic intensity” of a contact refers to a characteristic of the contact based on one or more intensities of the contact. In some embodiments, the characteristic intensity is based on multiple intensity samples. The characteristic intensity is, optionally, based on a predefined number of intensity samples, or a set of intensity samples collected during a predetermined time period (e.g., 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10 seconds) relative to a predefined event (e.g., after detecting the contact, prior to detecting liftoff of the contact, before or after detecting a start of movement of the contact, prior to detecting an end of the contact, before or after detecting an increase in intensity of the contact, and/or before or after detecting a decrease in intensity of the contact). A characteristic intensity of a contact is, optionally, based on one or more of: a maximum value of the intensities of the contact, a mean value of the intensities of the contact, an average value of the intensities of the contact, a top 10 percentile value of the intensities of the contact, a value at the half maximum of the intensities of the contact, a value at the 90 percent maximum of the intensities of the contact, or the like. In some embodiments, the duration of the contact is used in determining the characteristic intensity (e.g., when the characteristic intensity is an average of the intensity of the contact over time). In some embodiments, the characteristic intensity is compared to a set of one or more intensity thresholds to determine whether an operation has been performed by a user. For example, the set of one or more intensity thresholds optionally includes a first intensity threshold and a second intensity threshold. In this example, a contact with a characteristic intensity that does not exceed the first threshold results in a first operation, a contact with a characteristic intensity that exceeds the first intensity threshold and does not exceed the second intensity threshold results in a second operation, and a contact with a characteristic intensity that exceeds the second threshold results in a third operation. In some embodiments, a comparison between the characteristic intensity and one or more thresholds is used to determine whether or not to perform one or more operations (e.g., whether to perform a respective operation or forgo performing the respective operation), rather than being used to determine whether to perform a first operation or a second operation. 
     In some embodiments, a portion of a gesture is identified for purposes of determining a characteristic intensity. For example, a touch-sensitive surface optionally receives a continuous swipe contact transitioning from a start location and reaching an end location, at which point the intensity of the contact increases. In this example, the characteristic intensity of the contact at the end location is, optionally, based on only a portion of the continuous swipe contact, and not the entire swipe contact (e.g., only the portion of the swipe contact at the end location). In some embodiments, a smoothing algorithm is, optionally, applied to the intensities of the swipe contact prior to determining the characteristic intensity of the contact. For example, the smoothing algorithm optionally includes one or more of: an unweighted sliding-average smoothing algorithm, a triangular smoothing algorithm, a median filter smoothing algorithm, and/or an exponential smoothing algorithm. In some circumstances, these smoothing algorithms eliminate narrow spikes or dips in the intensities of the swipe contact for purposes of determining a characteristic intensity. 
     The intensity of a contact on the touch-sensitive surface is, optionally, characterized relative to one or more intensity thresholds, such as a contact-detection intensity threshold, a light press intensity threshold, a deep press intensity threshold, and/or one or more other intensity thresholds. In some embodiments, the light press intensity threshold corresponds to an intensity at which the device will perform operations typically associated with clicking a button of a physical mouse or a trackpad. In some embodiments, the deep press intensity threshold corresponds to an intensity at which the device will perform operations that are different from operations typically associated with clicking a button of a physical mouse or a trackpad. In some embodiments, when a contact is detected with a characteristic intensity below the light press intensity threshold (e.g., and above a nominal contact-detection intensity threshold below which the contact is no longer detected), the device will move a focus selector in accordance with movement of the contact on the touch-sensitive surface without performing an operation associated with the light press intensity threshold or the deep press intensity threshold. Generally, unless otherwise stated, these intensity thresholds are consistent between different sets of user interface figures. 
     An increase of characteristic intensity of the contact from an intensity below the light press intensity threshold to an intensity between the light press intensity threshold and the deep press intensity threshold is sometimes referred to as a “light press” input. An increase of characteristic intensity of the contact from an intensity below the deep press intensity threshold to an intensity above the deep press intensity threshold is sometimes referred to as a “deep press” input. An increase of characteristic intensity of the contact from an intensity below the contact-detection intensity threshold to an intensity between the contact-detection intensity threshold and the light press intensity threshold is sometimes referred to as detecting the contact on the touch-surface. A decrease of characteristic intensity of the contact from an intensity above the contact-detection intensity threshold to an intensity below the contact-detection intensity threshold is sometimes referred to as detecting liftoff of the contact from the touch-surface. In some embodiments, the contact-detection intensity threshold is zero. In some embodiments, the contact-detection intensity threshold is greater than zero. 
     In some embodiments described herein, one or more operations are performed in response to detecting a gesture that includes a respective press input or in response to detecting the respective press input performed with a respective contact (or a plurality of contacts), where the respective press input is detected based at least in part on detecting an increase in intensity of the contact (or plurality of contacts) above a press-input intensity threshold. In some embodiments, the respective operation is performed in response to detecting the increase in intensity of the respective contact above the press-input intensity threshold (e.g., a “down stroke” of the respective press input). In some embodiments, the press input includes an increase in intensity of the respective contact above the press-input intensity threshold and a subsequent decrease in intensity of the contact below the press-input intensity threshold, and the respective operation is performed in response to detecting the subsequent decrease in intensity of the respective contact below the press-input threshold (e.g., an “up stroke” of the respective press input). 
     In some embodiments, the device employs intensity hysteresis to avoid accidental inputs sometimes termed “jitter,” where the device defines or selects a hysteresis intensity threshold with a predefined relationship to the press-input intensity threshold (e.g., the hysteresis intensity threshold is X intensity units lower than the press-input intensity threshold or the hysteresis intensity threshold is 75%, 90%, or some reasonable proportion of the press-input intensity threshold). Thus, in some embodiments, the press input includes an increase in intensity of the respective contact above the press-input intensity threshold and a subsequent decrease in intensity of the contact below the hysteresis intensity threshold that corresponds to the press-input intensity threshold, and the respective operation is performed in response to detecting the subsequent decrease in intensity of the respective contact below the hysteresis intensity threshold (e.g., an “up stroke” of the respective press input). Similarly, in some embodiments, the press input is detected only when the device detects an increase in intensity of the contact from an intensity at or below the hysteresis intensity threshold to an intensity at or above the press-input intensity threshold and, optionally, a subsequent decrease in intensity of the contact to an intensity at or below the hysteresis intensity, and the respective operation is performed in response to detecting the press input (e.g., the increase in intensity of the contact or the decrease in intensity of the contact, depending on the circumstances). 
     For ease of explanation, the descriptions of operations performed in response to a press input associated with a press-input intensity threshold or in response to a gesture including the press input are, optionally, triggered in response to detecting either: an increase in intensity of a contact above the press-input intensity threshold, an increase in intensity of a contact from an intensity below the hysteresis intensity threshold to an intensity above the press-input intensity threshold, a decrease in intensity of the contact below the press-input intensity threshold, and/or a decrease in intensity of the contact below the hysteresis intensity threshold corresponding to the press-input intensity threshold. Additionally, in examples where an operation is described as being performed in response to detecting a decrease in intensity of a contact below the press-input intensity threshold, the operation is, optionally, performed in response to detecting a decrease in intensity of the contact below a hysteresis intensity threshold corresponding to, and lower than, the press-input intensity threshold. 
     Attention is now directed towards embodiments of user interfaces (“UI”) and associated processes that are implemented on an electronic device, such as portable multifunction device  100 , device  300 , or device  500 . 
       FIGS. 6A-6S  illustrate exemplary user interfaces for playing and managing audio items, in accordance with some embodiments. The user interfaces in these figures are used to illustrate the processes described below, including the processes in  FIGS. 7A-7C . 
       FIG. 6A  illustrates an electronic device  600  (e.g., portable multifunction device  100 , device  300 , or device  500 ). In the non-limiting exemplary embodiment depicted in  FIGS. 6A-6S , electronic device  600  is a smartwatch. In other embodiments, electronic device  600  can be a different type of electronic device, such as a different type of wearable device or a smartphone. 
     As shown in  FIG. 6A , electronic device  600  has a touch-sensitive display  602 . In some embodiments, electronic device  600  also has a rotatable input mechanism  606  for navigating the displayed user interface. For example, rotatable input mechanism  606  can be used to scroll (upwards and downwards) the displayed user interface. For another example, the rotatable input mechanism  606  can be used to zoom in and zoom out of the displayed user interface. For another example, the rotatable input mechanism  606  can be used to zoom in to a displayed icon corresponding to an application and launch the application corresponding to the zoomed-in icon. 
     In  FIG. 6A , electronic device  600  displays, on the touch-sensitive display  602 , a portion of a navigation user interface  604  of an application (e.g., a music application) for playing audio items (e.g., a song, an audio file, a podcast, a radio channel, a recording). Navigation user interface  604  enables a user of electronic device  600  to navigate through audio playlists, albums, artists, and tracks that can be managed and played using electronic device  600 . In some embodiments, navigation user interface  604  includes an indication  608  (e.g., “MUSIC” for a music application) that the currently-displayed application is an application for playing audio items. In some embodiments, navigation user interface  604  includes a time indication  610  of the current time. In some embodiments, navigation user interface  604  includes a scroll bar  612  indicating the portion (or region) of navigation user interface  604  that is currently being displayed on touch-sensitive display  602 . For example, in  FIG. 6A , scroll bar  612  indicates that the very bottom portion of navigation user interface  604  is currently displayed. 
     Navigation user interface  604  also includes a graphical depiction of a stack of audio group items  614  corresponding to audio items that can be played through electronic device  600  (e.g., via internal speakers of electronic device  600  or via an external device, such as headphones paired with electronic device  600 , an external speaker paired with electronic device  600 , or speakers of a different device, such as a smartphone, tablet, laptop computer, or desktop computer, paired with electronic device  600 ). In some embodiments, as shown in  FIG. 6A , the stack of audio group items  614  is located at a bottom region of navigation user interface  604 . In some embodiments, as shown in  FIG. 6A , the stack of audio group items  614  is organized based on albums (e.g., a musical album, a collection of podcasts, a collection of listings from a radio channel), and each stack item of the stack of audio group items  614  corresponds to an album. For example, the first stack item  616  of the stack corresponds to a “Classics Album.” In some embodiments, the stack of audio group items  614  are organized based on playlists created by a user of electronic device  600 , and each stack item of the stack of audio group items  614  corresponds to a playlist. In some embodiments, the stack of audio group items  614  are organized based on artists, and each stack item of the stack of audio group items  614  corresponds to an artist. In some embodiments, navigation user interface  604  optionally displays, below the stack of audio group items  614 , a textual indication  618  of an album, playlist, or radio station corresponding to the first record of the stack and a textual indication  620  of an artist associated with the album, playlist, or radio station. 
     In  FIG. 6B , while displaying navigation user interface  604 , electronic device  600  receives a tap gesture  601  by a user of electronic device  600  on first stack item  616  of the stack of records  614 . In  FIG. 6C , in response to receiving tap gesture  601  on first stack item  616 , electronic device  600  displays, on touch-sensitive display  602 , a control user interface  622  of the application for playing audio items (e.g., a music application). In some embodiments, in addition to displaying control user interface  622 , electronic device  600  causes audio output (e.g., via internal speakers of electronic device  600  or via an external device, such as headphones paired with electronic device  600 , an external speaker paired with electronic device  600 , or speakers of a different device, such as a smartphone, tablet, laptop computer, or desktop computer, paired with electronic device  600 ) of a first audio item associated with the album corresponding to the selected stack item  616 . In some embodiments, electronic device  600  displays control user interface  622  but does not cause audio output of the first audio item associated with the album corresponding to the selected stack item  616 . 
     Control user interface  622  includes an indication  626  (e.g., the title) of the currently-playing audio item (e.g., “First Track”). In some examples, the audio item is the first listed audio item in the album (e.g., “Classics Album”) corresponding to the selected stack item  616 . In some embodiments, control user interface  622  also includes an indication  628  of the artist (e.g., “Classics Band”) associated with the currently-playing audio item (e.g., “First Track”). 
     In some embodiments, control user interface  622  displays a selectable indication  624  which indicates a progress time (e.g., “0:00”) of the currently-playing audio item (e.g., “First Track”). In some embodiments, in response to detecting user selection of selectable indication  624 , electronic device  600  replaces display of the current user interface with display of the previous user interface (e.g., replaces display of control user interface  622  with display of navigation user interface  604 . In some embodiments, selectable indication  624  replaces display of indication  608 . In some embodiments, electronic device  600  maintains display of time indication  610 . 
     Control user interface  622  further includes a rewind icon  630 , a play/pause icon  632 , and a forwards icon  634 . In some embodiments, play/pause icon  632  is displayed in “pause” mode, as depicted in  FIG. 6C , when the audio item (e.g., “First Track”) is currently being played. In some embodiments, play/pause icon  632  is displayed in “play” mode when the audio item (e.g., “First Track”) is currently not being played. In some embodiments, user activation of rewind icon  630  causes the currently-playing audio item (e.g., “First Track”) to rewind by a predetermined increment of time (e.g., 3 seconds, 5 seconds, 10 seconds, etc.). In some embodiments, user activation of rewind icon  630  causes the currently-playing audio item (e.g., “First Track”) to be played from the beginning of the file. In some embodiments, user activation of rewind icon  630  causes a previous listed audio item in the album (e.g., “Classics Album”) to be played. In some embodiments, user activation of forwards icon  634  causes the currently-playing audio item (e.g., “First Track”) to jump forwards by a predetermined increment of time (e.g., 3 seconds, 5 seconds, 10 seconds, etc.). In some embodiments, user activation of forwards icon  634  causes a subsequent listed audio item in the album (e.g., “Classics Album”) to be played. 
     Control user interface  622  further includes an add-to-library icon  636 , a volume control icon  638 , and a show-more icon  640 . Volume control icon  638  enables the user to manipulate the output volume setting. In some embodiments, user activation of volume control icon  638  causes display of a volume bar for increasing or decreasing the volume. Add-to-library icon  636  is described in greater detail below with reference to  FIGS. 6L-6M  and show-more icon  640  is described in greater detail below with reference to  FIGS. 6N-6Q . 
     Control user interface  622  further includes a first indicia icon  642  corresponding to control user interface  622  and second indicia icon  644  corresponding to a user interface different from control user interface  642 . In  FIG. 6C , first indicia icon  642  is highlighted (e.g., visually darkened, visually marked) to be visually distinguished relative to second indicia icon  644  in order to indicate to the user that the currently-displayed user interface is control user interface  622  (as opposed to a different user interface). 
     In  FIG. 6D , electronic device  600  receives a user input on control user interface  622 . In some embodiments, as shown in the transition of  FIG. 6D  through  FIG. 6F , the user input is a swipe gesture  603  in a right-to-left horizontal direction, beginning on control user interface  622  and moving in a leftwards direction on touch-sensitive display  602 . In some embodiments, as shown in  FIG. 6E , as swipe gesture  603  is being detected, control user interface  622  is gradually removed from display towards a side (e.g., the left side) of touch-sensitive display  602 , and a track list user interface  646  moves into display from an opposite side (e.g., the right side) of touch-sensitive display  602 . Thus, swipe gesture  603  causes electronic device  600  to smoothly transition from control user interface  622  to track list user interface  646 . In some embodiments, during the transition of control user interface  622  to track list user interface  646 , electronic device maintains causing audio output of the currently-playing audio item (e.g., “First Track”). In some embodiments, during the transition of control user interface  622  to track list user interface  646 , electronic device  600  maintains display of selectable indication  624  indicating the time progress of the currently-playing audio item (e.g., “First Track”) and time indication  610 . 
     As shown in  FIG. 6G , track list user interface  646  includes display of a list of selectable titles  648 - 656  associated with audio items in the currently-selected album (or playlist or radio station) (e.g., “Classics Album”), including the title  648  corresponding to the currently-playing audio item (e.g., “First Track”). In some embodiments, as shown in  FIG. 6G , track list user interface  646  updates display of selectable indication  624  to indicate the title of the currently-playing audio item (e.g., “First Track”). In some embodiments, user activation of selectable indication  624  causes electronic device  600  to replace display of track list user interface  646  with control user interface  622 . In some embodiments, electronic device  600  maintains display of time indication  610  in track list user interface  646 . 
     Track list user interface  646  also includes display of first indicia icon  642  corresponding to control user interface  622  and second indicia icon  644  corresponding to track list user interface  646 . Because track list user interface  646  is being displayed, second indicia icon  644 , instead of first indicia icon  642 , is highlighted (e.g., visually darkened, visually marked) to be visually distinguished relative to first indicia icon  642  in order to indicate to the user that the currently-displayed user interface is track list user interface  646  (as opposed to control user interface  622 ). 
     In  FIG. 6H , electronic device  600  receives user selection, via touch-sensitive display  602  (or, alternatively, a voice input via a mic or rotation input via rotatable input mechanism  606 ), of an audio item of the current album (e.g., “Classics Album”) different from the currently-playing audio item (e.g., “First Track”). For example, electronic device  600  detects tap gesture  605  on selectable title  652  corresponding to the third audio item (e.g., “Third Track”) of the current album (e.g., “Classics Album”). In response to detecting tap gesture  605  on selectable title  652 , electronic device  600  causes audio output (e.g., via internal speakers of electronic device  600  or via an external device, such as headphones paired with electronic device  600 , an external speaker paired with electronic device  600 , or speakers of a different device, such as a smartphone, tablet, laptop computer, or desktop computer, paired with electronic device  600 ) of the audio item corresponding to selectable title  652  (e.g., “Third Track”). In some embodiments, selectable indication  624  is updated to indicate that the audio item corresponding to selectable title  652  is now playing. 
     As shown in the transition of  FIG. 6I  through  FIG. 6K , electronic device  600  detects a swipe gesture  607  in a left-to-right horizontal direction, beginning on track list user interface  646  and moving in a rightwards direction on touch-sensitive display  602 . Through the transition, electronic device  600  smoothly replaces display of track list user interface  646  with control user interface  622 . As shown in  FIG. 6K , control user interface  622  displays indication  626  (e.g., the title) of the currently-playing audio item (e.g., “Third Track”) and indication  628  of the artist (e.g., “Classics Band”) associated with the currently-playing audio item (e.g., “Third Track”). As also shown in  FIG. 6K , electronic device  600  updates display of first indicia icon  642  and second indicia icon  644  such that first indicia icon  642  (corresponding to control use interface  622 ) is highlighted (e.g., visually darkened, visually marked) relative to second indicia icon  644  (corresponding to track list user interface  646 ) to indicate to the user that the currently-displayed user interface is control user interface  622 . 
     As shown in  FIG. 6K , control user interface  622  includes display of add-to-library icon  636 . In some embodiments, add-to-library icon has a first display mode (e.g., displayed with a “+” symbol) and a second display mode (e.g., displayed with a “✓” symbol). The first display mode indicates that the currently-playing audio item (e.g., “Third Track”) is not contained in a media library (e.g., a music library, a library of audio items stored in and accessible from a cloud service) associated with a user account that is logged into electronic device  600 , and the second display mode indicates that the currently-playing audio item (e.g., “Third Track”) is contained in a media library (e.g., a music library, a library of audio items stored in and accessible from a cloud service) associated with a user account that is logged into electronic device  600 . In  FIG. 6K , the currently-playing audio item (e.g., “Third Track”) is not contained in a media library associated with a user account of the user of electronic device  600 , and thus add-to-library affordance is displayed in the first display mode (e.g., is displayed with a “+” symbol). 
     In  FIG. 6L , while playing an audio item (e.g., “Third Track”) that is not contained in a media library associated with a user account of the user, electronic device  600  detects, via touch-sensitive display  602  (or, alternatively, a voice input via a mic or rotation input via rotatable input mechanism  606 ), user selection of add-to-library icon  636  (in the first display mode). For example, as shown in  FIG. 6L , the user selection is a tap gesture  609  on add-to-library icon  636 . In response to detecting tap gesture  609  on add-to-library icon  636  (in the first display mode), electronic device  600  causes the current audio item (e.g., “Third Track”) to be added to a media library. 
     As shown in  FIG. 6M , once the current audio (e.g., “Third Track”) has been added to the media library, electronic device  600  changes the display mode of add-to-library icon  636  from the first display mode (e.g., displayed with a “+” symbol) to the second display mode (e.g., displayed with a “✓” symbol). Add-to-library icon  636  in the second display indicates to the user that the current audio item is already contained in the media library. In some embodiments, when in the second display mode, upon receiving user selection of the add-to-library icon  636 , electronic device  600  displays a notification (or a prompt) indicating to the user that the current audio item (e.g., “Third Track”) is already contained in the media library. In some embodiments, when in the second display mode, add-to-library icon  636  is no longer selectable by the user. 
     In  FIG. 6N , while displaying control user interface  622 , electronic device  600  detects, via touch-sensitive display  602  (or, alternatively, a voice input via a mic or rotation input via rotatable input mechanism  606 ), user selection of show-more icon  640 . For example, the user selection is a tap gesture  611  on show-more icon  640 . In some embodiments, as shown in FIG.  6 N, show-more icon  640  is displayed with a “ . . . ” symbol (e.g., representing a “show more” option) to indicate that more user actions can be taken with respect to the current audio item (e.g., “Third Track”). 
     In some embodiments, in response to detecting tap gesture  611  on show-more icon  640 , electronic device  600  displays (replaces display of control user interface  622  with) an additional options user interface  658 , as shown in  FIG. 6O . In some embodiments, in additional options user interface  658 , selectable indication  624  indicates (e.g., by displaying “CANCEL”) to the user that the user can select selectable indication  624  to leave additional options user interface  658  (and return to control user interface  622 ). In some embodiments, additional options user interface  658  maintains display of time indication  610 . In some embodiments, additional options user interface  658  maintains display of indication  626  (e.g., the title) of the current audio item (e.g., “Third Track”). In some embodiments, additional options user interface  658  maintains display of indication  628  of the artist (e.g., “Classics Band”) corresponding to the current audio item (e.g., “Third Track”). 
     In some embodiments, as further shown in  FIG. 6O , additional options user interface  658  includes an add-locally icon  660  and play-remotely icon  662 . In some embodiments, add-locally icon  660  indicates (e.g., by displaying a textual indication, such as “Add to Watch”) to the user that the current audio item (e.g., “Third Track”) can be stored locally on electronic device  600 . In some embodiments, play-remotely icon  662  indicates (e.g., via a textual indication, such as “AirPlay To” or “Stream To”) to the user that the current audio item can be caused to play remotely at a different device (e.g., a smartphone, a laptop computer, a desktop computer) that is paired (e.g., connected with and recognized by) electronic device  600 . 
     In  FIG. 6P , while displaying additional options user interface  658 , electronic device  600  detects, via touch-sensitive display  602  (or, alternatively, a voice input via a mic or rotation input via rotatable input mechanism  606 ), user selection of add-locally icon  660 . For example, as shown in  FIG. 6P , the user selection is a tap gesture  613  on add-locally icon  660 . 
     As shown in  FIG. 6Q , in response to detecting tap gesture  613  on add-locally icon  660 , electronic device  600  displays a second additional options user interface  664 . In some embodiments, second additional options user interface  664  maintains display of selectable indication in the cancel mode. In some embodiments, user activation of selectable indication  624  on second additional options user interface  664  causes electronic device  600  to return to display of additional options user interface  658 . In some embodiments, user activation of selectable indication  624  on second additional options user interface  664  causes electronic device  600  to return to display of control user interface  622 . 
     As also shown in  FIG. 6Q , second additional options user interface  664  includes an add-track-only icon  668  and an add-entire-album icon  670 . Add-track-only icon  668  indicates (e.g., via a textual indication, such as “Add Song,” “Add Track,” “Add Audio item,” etc.) to the user that only the current audio item (e.g., “Third Track”), but not other audio items associated with the current album (e.g., “Classics Album”), will be added (stored) locally on electronic device  600 . Add-entire-album icon  670  indicates (e.g., via a textual indication, such as “Add Album,” “Add Playlist,” “Add Folder,” etc.) that all audio items associated with the current album (or current playlist, current folder, current radio station, etc.), will be added (stored) locally on electronic device  600 . 
     In some embodiments, as shown in  FIG. 6R , while displaying second additional options user interface  664 , electronic device  600  detects, via touch-sensitive display  602  (or, alternatively, a voice input via a mic or rotation input via rotatable input mechanism  606 ), user selection of add-track-only icon  668 . For example, the user selection is a tap gesture  615  on add-track-only icon  668 . In response to detecting user activation of add-track-only icon  668 , electronic device  600  proceeds to add (store) the current audio item (e.g., “Third Track”) locally on electronic device  600 , but does not add (store) other audio items (e.g., “First Track,” “Second Track,” “Fourth Track,” “Fifth Track”) of the current album (e.g., “Classics Album”) locally on electronic device  600 , even if one or more of the other audio items are not stored locally on electronic device  600 . 
     In some embodiments, as shown in  FIG. 6S , while displaying second additional options user interface  664 , electronic device  600  receives, via touch-sensitive display  602  (or, alternatively, a voice input via a mic or rotation input via rotatable input mechanism  606 ), user selection of add-entire-album  670 . For example, the user input is a tap gesture  617  on add-entire-album  670 . In response to detecting user activation of add-entire-album  670 , electronic device  600  proceeds to add (store) all audio items (e.g., “First Track,” “Second Track,” “Third Track,” “Fourth Track,” “Fifth Track”) in the current album (e.g., “Classics Album”) locally on electronic device  600 . 
       FIGS. 7A-7C  are a flow diagram illustrating a method for playing and managing audio items using an electronic device in accordance with some embodiments. Method  700  is performed at a device (e.g.,  100 ,  300 ,  500 ,  600 ) with a touch-sensitive display (e.g., touch-sensitive display  602 ). Some operations in method  700  are, optionally, combined, the order of some operations is, optionally, changed, and some operations are, optionally, omitted. 
     As described below, method  700  provides an intuitive way for playing and managing audio items. The method reduces the cognitive burden on a user for playing and managing audio items, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to play and manage audio files faster and more efficiently conserves power and increases the time between battery charges. 
     At block  702 , the electronic device (e.g.,  600 ) displays, on the display (e.g.,  602 ), a first user interface (e.g.,  604 ), where the first user interface includes a scrollable plurality of audio playlist items (e.g.,  614 ) associated with a plurality of audio playlists. In some examples, the scrollable plurality of audio playlist items (e.g.,  614 ) is a stack of records. In some examples, the scrollable plurality of audio playlist items (e.g.,  614 ) is a stack of audio tracks. In some examples, the scrollable plurality of audio playlist items (e.g.,  614 ) is a collection of titles or albums. In some examples, the scrollable plurality of audio playlist items (e.g.,  614 ) is a collection of radio items, news items, or podcasts. In some examples, the scrollable plurality of audio playlist items (e.g.,  614 ) is a collection of audio recordings. Displaying a user interface that includes a scrollable plurality of audio playlist items associated with a plurality of audio playlists provides a visual feedback that enables a user to visualize (and thus experience the sensation of) flipping through a real stack of playlist items. Providing improved visual feedback to the user enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  704 , while displaying the first user interface (e.g.,  604 ), the electronic device (e.g.,  600 ) receives a third input. In some examples, the third input is a touch gesture on the touch-sensitive display (e.g.,  602 ) corresponding to a scroll in an upwards direction. In some examples, the third input is a touch gesture on the touch-sensitive display (e.g.,  602 ) corresponding to a scroll in a downwards direction. In some examples, the third input is a movement of a rotatable crown (e.g.,  606 ) of the electronic device (e.g.,  600 ) in a clockwise direction. In some examples, the third input is a movement of a rotatable crown (e.g.,  606 ) of the electronic device (e.g.,  600 ) in a counter-clockwise direction. In some embodiments, at block  706 , in response to receiving the third input, the electronic device (e.g.,  600 ) displays, on the display (e.g.,  602 ), a plurality of menu affordances. In some embodiments, at block  708 , the electronic device (e.g.,  600 ) receives user selection of a first menu affordance (e.g., a “library” menu) of the plurality of menu affordances (e.g., a “now playing” menu, a “search” menu, or a “library” menu), where the menu affordance is associated with the media library. In some embodiments, at block  710 , in response to receiving the user selection of the first menu affordance (e.g., the “library” menu), the electronic device (e.g.,  600 ) displays, on the display (e.g.,  602 ), one or more audio items associated with (e.g., contained in) the media library. 
     In some embodiments, at block  712 , while displaying the one or more audio items associated with the media library, the electronic device (e.g.,  600 ) receives user selection of a second audio item of the one or more audio items associated with the media library. In some embodiments, at block  714 , in response to receiving the user selection of the second audio item, the electronic device (e.g.,  600 ) displays, on the display, the second user interface (e.g.,  622 ) (e.g., a control user interface of a music application), where the second user interface (e.g.,  622 ) includes a first indication (e.g.,  626 ) (e.g., a title of the audio item or an artist/album associated with the audio item) of the second audio item and a second indication (e.g.,  636 ) indicating that the second audio item is contained in the media library. 
     At block  716 , the electronic device (e.g.,  600 ) receives a first user input (e.g.,  601 ) on a first audio playlist item of the plurality of audio playlist items (e.g.,  614 ). In some examples, the first user input (e.g.,  601 ) is a touch gesture detectable by the touch-sensitive display (e.g.,  602 ), such as a tap. 
     At block  718 , in response to receiving the first user input (e.g.,  601 ) on the first audio playlist item, the electronic device (e.g.,  600 ), at block  720 , displays, on the display (e.g.,  602 ), a second user interface (e.g.,  622 ) (e.g., a control user interface of a music application), where the second user interface (e.g.,  622 ) includes an indication (e.g.,  626 ) of a first audio item of a first audio playlist associated with the first audio playlist item, and, at block  722 , displays, on the display, a plurality of indicia icons (e.g.,  642 ,  644 ), where a first indicia icon (e.g.,  642 ) associated with the second user interface includes an indication (e.g., highlighting or marking of the indicia icon) that the second user interface is currently displayed. Thus, the first indicia icon (e.g.,  642 ) is visually distinguished from other indicia icons that are not associated with the second user interface (e.g.,  622 ). Displaying a plurality of indicia icons, where the first indicia icon associated with the second user interface includes the indication that the second user interface is currently displayed, provides the user with feedback about the currently-displayed user interface and about other user interfaces that the user can navigate to relative to the currently-displayed user interface. Providing improved visual feedback to the user enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  724 , in response to receiving the first user input (e.g.,  601 ) on the first audio playlist item (e.g.,  616 ), the electronic device (e.g.,  600 ) causes audio output of the first audio item. For example, the electronic device (e.g.,  600 ) causes the audio output of the first audio item via internal speakers of the electronic device or via an external device, such as headphones paired with the electronic device, an external speaker paired with the electronic device, or the speakers of a different device (e.g., a smartphone, tablet, laptop computer, or desktop computer) paired with the electronic device. Causing audio output of the first audio item in response to receiving the first user input on the first audio playlist item allows the user to quickly and easily listen to and recognize an audio item within the audio playlist item without having to manually view and select an audio item within the audio playlist item. Performing an operation when a set of conditions has been met without requiring further user input enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  728 , in accordance with a determination that the first audio item is not contained in a media library associated with a user account that is logged into the electronic device (e.g.,  600 ), the electronic device displays, on the display (e.g.,  602 ), a first affordance (e.g.,  636 ). In some examples, the media library is a library of audio items stored in and accessible from a cloud service. In some examples, the first affordance (e.g.,  636 ) is displayed with a “+” to indicate that selecting the affordance will cause the first audio item to be added to the media library. In some embodiments, at block  730 , the electronic device (e.g.,  600 ) receives user selection of the first affordance (e.g.,  636 ). In some embodiments, at block  732 , in response to receiving the user selection of the first affordance (e.g.,  636 ), the electronic device (e.g.,  600 ) causes the first audio item to be added to the media library. 
     Displaying, in accordance with a determination that the audio item is not contained in a media library associated with a user account that is logged into the device, the affordance provides the user with feedback about the current state of the audio item and whether or not the user would want to take additional action regarding the audio item. Providing improved visual feedback to the user enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  734 , in accordance with a determination that the first audio item is contained in the media library associated with the user account that is logged into the electronic device (e.g.,  600 ), the electronic device displays, on the display (e.g.,  602 ), an indication (e.g.,  636 ) that the first audio item is contained in the media library. In some examples, the first affordance (e.g.,  636 ) is displayed with a “✓” (instead of a “+”) to indicate that the first audio item is already contained in the media library. Displaying the indication that the audio item is contained in the media library provides the user with visual feedback about the current state of the audio item. Providing improved visual feedback to the user enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  736 , the second user interface (e.g.,  622 ) (e.g., a control user interface of a music application) includes a second affordance (e.g.,  640 ), and the electronic device (e.g.,  600 ) receives user selection of the second affordance. In some examples, the second affordance (e.g.,  640 ) is displayed with a “ . . . ” (e.g., representing a “show more” option) to indicate that more actions can be taken with respect to the first audio item. In some embodiments, at block  738 , subsequent to receiving the user selection of the second affordance (e.g.,  640 ), the electronic device (e.g.,  600 ) displays, on the display (e.g.,  602 ), a first add affordance (e.g.,  660 ,  668 ). In some examples, the first add affordance (e.g.,  668 ) indicates to the user that the current audio item can be stored locally on the electronic device (e.g.,  600 ). In some embodiments, at block  740 , the electronic device (e.g.,  600 ) receives user selection of the first add affordance (e.g.,  660 ,  668 ). In some embodiments, at block  742 , in response to receiving the user selection of the first add affordance (e.g.,  660 ,  668 ), the electronic device (e.g.,  600 ) stores the first audio item on the electronic device, and forgoes storing a second audio item of the plurality of audio items of the first audio playlist different from the first audio item. For example, the electronic device (e.g.,  600 ) stores only the current audio item of the playlist but does not store all other audio items of the playlist. 
     In some embodiments, at block  744 , subsequent to receiving the user selection of the second affordance (e.g.,  670 ), the electronic device (e.g.,  600 ) displays, on the display (e.g.,  602 ), a second add affordance (e.g.,  670 ). In some examples, the second add affordance (e.g.,  670 ) indicates to the user that all the audio items of the current playlist can be stored locally on the device (e.g.,  600 ). In some embodiments, at block  746 , the electronic device (e.g.,  600 ) receives user selection of the second add affordance (e.g.,  670 ). In some embodiments, at block  748 , in response to receiving the user selection of the second add affordance (e.g.,  670 ), the electronic device (e.g.,  600 ) stores all of the plurality of audio items of the first audio playlist on the electronic device. 
     At block  750 , the electronic device (e.g.,  600 ) receives a second user input on the second user interface (e.g.,  622 ). In some examples, the second user input is a swipe gesture (e.g.,  607 ) in a horizontal direction on the second user interface (e.g.,  622 ). In some examples, the second user input is a swipe gesture in a vertical direction on the second user interface. 
     At block  752 , in response to receiving the second user input (e.g.,  607 ) on the second user interface, the electronic device (e.g.,  600 ), at block  754 , displays, on the display (e.g.,  602 ), a third user interface (e.g.,  646 ) (e.g., a user interface showing the list of tracks in the playlist that is associated with the currently-playing track), where the third user interface includes a plurality of audio items (e.g.,  648 - 656 ) of the first audio playlist and, at block  756 , updates display of the plurality of indicia icons, where a second indicia icon (e.g.,  644 ) associated with the third user interface (e.g.,  646 ) includes the indication (e.g., highlighting or marking of the indicia icon) that the third user interface is currently displayed. 
     Updating display of the plurality of indicia icons, where the first indicia icon associated with the second user interface includes the indication that the second user interface is currently displayed, provides the user with feedback about the currently-displayed user interface and about other user interfaces that the user can navigate to relative to the currently-displayed user interface. Providing improved visual feedback to the user enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  758 , while the electronic device (e.g.,  600 ) has no connectivity with an external device (e.g., a smartphone, tablet, laptop computer, or desktop computer) that is storing a second audio item of the first audio playlist, the electronic device receives user selection of the second audio item. In some embodiments, at block  760 , in response to receiving the user selection of the second audio item of the first audio playlist, the electronic device (e.g.,  600 ), at block  762 , in accordance with a determination that the second audio item is stored on the electronic device, causes audio output of the second audio item, and, at block  764 , in accordance with a determination that the second audio item is not stored on the electronic device, forgoes causing audio output of the second audio item. For example, the electronic device (e.g.,  600 ) causes the audio output of the second audio item via internal speakers of the electronic device or via an external device, such as headphones paired with the electronic device, an external speaker paired with the electronic device, or the speakers of a different device (e.g., a smartphone, tablet, laptop computer, or desktop computer) paired with the electronic device. 
     Causing audio output of the audio item in accordance with a determination that the audio item is stored on the device and forgoing causing audio output of the audio item in accordance with a determination that the audio item is not stored on the device provides the user with feedback indicative of whether or not the audio item is stored on the device. Providing improved feedback enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  766 , the electronic device (e.g.,  600 ) receives user input (e.g.,  605 ) on a second audio item (e.g., a different track from the current track) of the plurality of audio items of the first audio playlist displayed on the third user interface, where the second audio item is different from the first audio item. In some embodiments, at block  768 , in response to receiving the user input (e.g.,  605 ) on the second audio item, at the electronic device (e.g.,  600 ), at block  770 , displays, on the display (e.g.,  602 ), the second user interface (e.g.,  622 ), where the second user interface includes an indication (e.g.,  626 ) of the second audio item. In some embodiments, at block  772 , the electronic device (e.g.,  600 ) also updates display of the plurality of indicia icons, where the first indicia icon (e.g.,  642 ) associated with the second user interface (e.g.,  622 ) includes the indication (e.g., highlighting or marking of the indicia icon) that the second user interface is currently displayed. In some embodiments, at block  774 , the electronic device (e.g.,  600 ) also causes audio output of the second audio item. For example, the electronic device (e.g.,  600 ) causes the audio output of the second audio item via internal speakers of the electronic device or via an external device, such as headphones paired with the electronic device, an external speaker paired with the electronic device, or the speakers of a different device (e.g., a smartphone, tablet, laptop computer, or desktop computer) paired with the electronic device. 
     Updating display of the plurality of indicia icons, where the first indicia icon associated with the second user interface includes the indication that the second user interface is currently displayed, provides the user with feedback about the currently-displayed user interface and about other user interfaces that the user can navigate to relative to the currently-displayed user interface. Providing improved visual feedback to the user enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     Note that details of the processes described above with respect to method  700  (e.g.,  FIGS. 7A-7C ) are also applicable in an analogous manner to the methods described below. For example, methods  900 ,  1100 , and  1300  optionally include one or more of the characteristics of the various methods described above with reference to method  700 . For example, the method of navigating the displayed stack of stack items described in method  900  can be used to navigate audio items and select audio items to be played through electronic device  600 . For another example, the method of quickly and efficiently switching between user interfaces of active applications described in method  1100  can be used to switch amongst active applications on electronic device  600 . For another example, the method of updating data associated with audio files using a different device as described in method  1300  can be used to update locally stored data on electronic device  600 . For brevity, these details are not repeated below. 
       FIGS. 8A-8AC  illustrate exemplary user interfaces for playing and managing audio items, in accordance with some embodiments. The user interfaces in these figures are used to illustrate the processes described below, including the processes in  FIGS. 9A-9D . 
       FIG. 8A  illustrates the face of an electronic device  800  (e.g., portable multifunction device  100 , device  300 , or device  500 ). In this non-limiting exemplary embodiment depicted in  FIGS. 8A-8AC , electronic device  800  is a smartwatch. In other embodiments, electronic device  600  can be a different type of electronic device, such as a different type of wearable device or a smartphone. 
     As shown in  FIG. 8A , electronic device  800  has a touch-sensitive display  802 . In some embodiments, electronic device  800  also has a rotatable input mechanism  806  for navigating the displayed user interface. For example, rotatable input mechanism  806  can be used to scroll (upwards and downwards) the displayed user interface. For another example, the rotatable input mechanism  806  can be used to zoom in and zoom out of the displayed user interface. For another example, the rotatable input mechanism  806  can be used to zoom in to a displayed icon corresponding to an application and launch the application corresponding to the zoomed-in icon. 
     In  FIG. 8A , electronic device  800  is displaying, on the touch-sensitive display  802 , a portion of a navigation user interface  804  of an application (e.g., a music application) for playing audio items (e.g., a song, an audio file, a podcast, a radio channel). Navigation user interface  804  enables a user of electronic device  800  to navigate through audio playlists, albums, artists, and/or tracks that can be managed and played using electronic device  800 . In some embodiments, navigation user interface  804  includes an indication  808  (e.g., “MUSIC” for a music application) that the currently-displayed application is an application for playing audio items (e.g., songs, podcasts, radio channels). In some embodiments, navigation user interface  804  includes a time indication  810  of the current time. In some embodiments, navigation user interface  804  includes a scroll bar  812  indicating the portion (or region) of navigation user interface  804  that is currently being displayed on touch-sensitive display  802 . For example, in  FIG. 8A , scroll bar  812  indicates that the very bottom portion of navigation user interface  804  is currently displayed. 
     Navigation user interface  804  also includes a graphical depiction of a stack of audio group items  814  corresponding to audio items that can be played through electronic device  800  (e.g., via internal speakers of electronic device  800  or via an external device, such as headphones paired with electronic device  800 , an external speaker paired with electronic device  800 , or speakers of a different device, such as a smartphone, tablet, laptop computer, or desktop computer, paired with electronic device  800 ). 
     As shown in  FIG. 8A , the stack of audio group items  814  is located at a bottom region of navigation user interface  804 . In some embodiments, as shown in  FIG. 8A , the stack of audio group items  814  is organized based on albums (e.g., a musical album, a collection of podcasts, a collection of listings from a radio channel), and each stack item of the stack of audio group items  814  corresponds to an album. For example, the first stack item  816  of stack  814 , which is shown at the top of stack  814 , corresponds to a “Classics Album.” In some embodiments, the stack of audio group items  814  are organized based on playlists created by a user of electronic device  800 , and each stack item of the stack of audio group items  814  corresponds to a playlist. In some embodiments, the stack of audio group items  814  are organized based on artists, and each stack item of the stack of audio group items  814  corresponds to an artist. 
     As further shown in  FIG. 8A , the stack of audio group items  814  includes one or more additional records, in addition to first stack item  816  of the stack. For example, stack  814  further includes at least a second audio record  824  and a third audio record  826 . In some embodiments a portion of the one or more additional records are displayed beneath first stack item  816 . This configuration of stack  814  provides a graphical depiction of album records being piled on top or one another in a piled “stack.” 
     In some embodiments, navigation user interface  804  optionally displays, below the stack of audio group items  814 , a textual indication  820  of an album, playlist, or radio station corresponding to the first record of the stack and a textual indication  822  of an artist associated with the album, playlist, or radio station. 
     In  FIG. 8B , while displaying stack  814  of navigation user interface  804 , electronic device  800  receives, via touch-sensitive display  804  (or alternatively, a voice input via a mic or rotation input via rotatable input mechanism  806 ), user input navigating navigation user interface  804 . For example, in  FIG. 8B , the user input is a scrolling  803  of rotatable input mechanism  806  in a counter-clockwise direction. 
     As shown in the transition of  FIG. 8B  through  FIG. 8E , while detecting scrolling  803  of rotatable input mechanism  806  in the counter-clockwise direction, as shown in the transition of  FIG. 8B  through  FIG. 8E , electronic device  800  replaces display of first stack item  816  at the top of stack  814  with second audio record  824  (e.g., “Modern Album”). In some embodiments, electronic device  800  graphically depicts this transition to reminisce a “flipping through” of records within stack  814 . In some embodiments, as depicted in  FIGS. 8B-8D , electronic device  800  dynamically depicts first stack item  816  sliding down from the top of stack  814  towards a bottom edge of touch-sensitive display  802  and relocating to the back of stack  814 . In some embodiments, electronic device  800  dynamically depicts first stack item  816  flipping forward from the top of stack  814  and rotating based on its bottom edge to the end (i.e., bottom) of stack  814 . 
     In some embodiments, while detecting scrolling  803  of rotatable input mechanism  806  and displaying the “flipping through” animation of stack  814 , electronic device  800  continually updates display of scroll bar  812  to indicate an amount of scrolling of navigation user interface  804  that resulted from scrolling  803  of rotatable input mechanism  806 . In the transition from  FIG. 8B  to  FIG. 8E , because stack  814  was displayed at the very bottom of navigation user interface  804  and scrolling  803  corresponded to an upwards scroll on navigation user interface  804 , scroll bar  812  indicates an amount of the scrolling of navigation user interface  804  in an upwards direction. 
     As shown in  FIG. 8E , once scrolling  803  of rotatable input mechanism  806  fully replaces the top stack item (e.g., first stack item  816 ) of stack  814  with the next stack item (e.g., second audio record  824 ), stack  814  within navigation user interface  804  depicts stack  814  with the next stack item (e.g., second audio record  824 ) as the top stack item. The previous top stack item, first stack item  816 , is now located the bottom of stack  814 . In some embodiments, as shown in  FIG. 8E , a portion (e.g., a topo portion) of first stack item  816  remains visible in stack  814  as the last stack item in the stack. In some embodiments, navigation user interface  804  updates display of textual indication  820  to the album, playlist, or radio station corresponding to the second audio record (e.g., “Modern Album”) and textual indication  822  to the artist (e.g., “Modern Band”) associated with the album, playlist, or radio station corresponding to the second audio record (e.g., “Modern Album”). 
     In  FIG. 8F , while displaying stack  814  with the top stack item as second stack item  824 , electronic device  800  receives, via touch-sensitive display  802  (or alternatively, a voice input via a mic or rotation input via rotatable input mechanism  806 ), user input of on stack  814 . For example, as illustrated in the transition from  FIG. 8F  through  FIG. 8I , the user input is a scrolling (or sliding) gesture  803  in a downwards direction on stack  814  that replaces the top stack item of stack  814  from second stack item  824  to third stack item  826 . In some embodiments, the transition stack  814  depicted in  FIGS. 8F-8I  involves the same “flipping through” animation corresponding to the transition illustrated in  FIGS. 8B-8E  (replacing first stack item  816  with second stack item  824  at the top of stack  814 ). In some embodiments, while detecting scrolling gesture  803  and displaying the “flipping through” animation of stack  814 , electronic device  800  continually updates display of scroll bar  812  to indicate an amount of scrolling of navigation user interface  804  that resulted from scrolling gesture  803  on stack  814 . In some embodiments, scrolling gesture  803  corresponds to “flipping through” stack  814  from the top of the stack towards the bottom of the stack, and “flipping through” stack  814  in the top to bottom direction corresponds to an upwards scroll of navigation user interface  804  (or alternatively, a downwards scroll of navigation user interface  804 ). 
     In  FIG. 8I , subsequent to navigating (“flipping through”) stack  814  from first stack item  816  to second stack item  824 , then from second stack item  824  to third stack item  826 , electronic device  800  displays stack  814  with third stack item  826  as the top stack item. In some embodiments, a user account (of the user) logged into electronic device  800  is associated with one or more additional albums (or playlists, artists, radio stations, etc.), and thus stack  814  includes one or more additional stack items, in addition to first stack item  816 , second stack item  824 , and first stack item  826 , corresponding to the one or more additional albums. 
     In some embodiments, as displayed in the transition from  FIG. 8J  through  FIG. 8Q , further scrolling (e.g., “flipping through”) of stack  814  (via scrolling of rotatable input mechanism  806 , scrolling gesture on touch-sensitive display  802 , or a different input mechanism, such as a voice input command) enables the user to view the one or more additional stack items in stack  814 . 
     For example, in  FIG. 8J , electronic device  800  receives scrolling  805  of rotatable input mechanism  806  in the counter-clockwise direction. In some embodiments, scrolling of rotatable input mechanism  806  in the counter-clockwise direction corresponds to scrolling of navigation user interface  804  in an upwards direction. Scrolling  805  of rotatable input mechanism  806  causes further navigation (e.g., “flipping through”) of stack  814 , as third stack item  826  flips away from the top of stack  814 , revealing fourth stack item  830  (e.g., a stack item corresponding to a “Workout” album). In some embodiments, as shown in  FIG. 8J , additional stack items  828  beneath fourth stack item  830  is at least partially visible. Further, electronic device  800  continually updates display of scroll bar  812  to correspond with the continued navigation (e.g., “flipping through”) of stack  814 . In some embodiments, because the scrolling  805  of rotatable input mechanism  806  corresponds to an upwards scrolling of navigation user interface  804 , scroll bar  812  of  FIG. 8J  indicates that navigation user interface  804  is further scrolled in the upwards direction relative to scroll bar  812  of  FIG. 8I . 
     In  FIG. 8K , electronic device  800  continues to receive scrolling  805  of rotatable input mechanism  806  in the same counter-clockwise direction. The continued scrolling  805  of rotatable input mechanism  806  continues to cause navigation (e.g., “flipping through”) of stack  814 , as third stack item  826  flips further away from the top of stack  814 , fourth stack item  830  also flips away from the top of stack  814 , revealing fifth stack item  832  (e.g., a stack item corresponding to a “Sunday Chill List” album). Further, electronic device  800  continually updates display of scroll bar  812  to correspond with the continued navigation (e.g., “flipping through”) of stack  814 . In some embodiments, because the scrolling  805  of rotatable input mechanism  806  corresponds to an upwards scrolling of navigation user interface  804 , scroll bar  812  of  FIG. 8K  indicates that navigation user interface  804  is further scrolled in the upwards direction relative to scroll bar  812  of  FIG. 8J . 
     In  FIG. 8L , electronic device  800  continues to receive more scrolling  805  of rotatable input mechanism  806  in the same counter-clockwise direction. The additional continued scrolling  805  of rotatable input mechanism  806  causes further navigation (e.g., continued “flipping through”) of stack  814 , as third stack item  826  is completely flipped away and to the back of stack  814 , fourth stack item  830  further flips away from the top of stack  814 , fifth stack item  832  also flips away from the top of stack  814 , revealing sixth stack item  834  (e.g., a stack item corresponding to a “Road Trip Favorites” album). In some embodiments, sixth stack item is the sixth and final stack item in stack  814  (e.g., if first stack item  816  is considered the “first” stack item of stack  814 , sixth stack item  834  is the “last” stack item of stack  814 ). Further, electronic device  800  continually updates display of scroll bar  812  to correspond with the continued navigation (e.g., “flipping through”) of stack  814 . In some embodiments, because the scrolling  805  of rotatable input mechanism  806  corresponds to an upwards scrolling of navigation user interface  804 , scroll bar  812  of  FIG. 8L  indicates that navigation user interface  804  is further scrolled in the upwards direction relative to scroll bar  812  of  FIG. 8K . 
     In  FIG. 8M , electronic device  800  continues to receive scrolling  805  of rotatable input mechanism  806  in the same counter-clockwise direction. The continued scrolling  805  of rotatable input mechanism  806  causes continued navigation (e.g., continued “flipping through”) of stack  814 , as fourth stack item  830  is completely flipped away and to the back of stack  814 , fifth stack item  832  further flips away from the top of stack  814 , and sixth stack item  834  (e.g., the “last” stack item of the stack) is increasingly revealed. In some embodiments, as shown in  FIG. 8M , the flipped stack items  836 , which correspond to stack items that have been “flipped” to the back of stack  814  via scrolling inputs  801 ,  803 , and  805  (e.g., first stack item  816 , second stack item  824 , third stack item  826 , fourth stack item  830 ) are partially visible in the stack. Further, electronic device  800  continually updates display of scroll bar  812  to correspond with the continued navigation (e.g., “flipping through”) of stack  814 . In some embodiments, because the scrolling  805  of rotatable input mechanism  806  corresponds to an upwards scrolling of navigation user interface  804 , scroll bar  812  of  FIG. 8M  indicates that navigation user interface  804  is further scrolled in the upwards direction relative to scroll bar  812  of  FIG. 8L . 
     In  FIG. 8N , in response to receiving scrolling  805  of rotatable input mechanism  806 , electronic device  800  displays sixth stack item  834  in stack  814 . In some embodiments, electronic device  800  recognizes that sixth stack item  834  is the “last” stack item of stack  814 . In some embodiments, electronic device  800  recognizes sixth stack item  834  as being the “last” stack item based on first stack item  816  having been the top-most stack item and sixth stack item  834  having been the bottom-most stack item of stack  814  prior to the device receiving scrolling  801 . In some embodiments, electronic device  800  recognizes sixth stack item  834  as being the “last” stack item based on a predetermined (or pre-configured) label of each stack item. In some embodiments, electronic device  800  recognizes sixth stack item  834  as being the “last” stack item based on a structured ordering of the stack items (e.g., alphanumeric-based ordering based on a name, such as album name, playlist name, artist name, folder name, or radio station name) corresponding to the album (or playlist, artist, folder, radio station) associated with the stack item. 
     In  FIG. 8O , electronic device  800  receives a user input corresponding to further navigation of navigation user interface  804  in an upwards direction. For example, as shown in  FIG. 8O , the user input is a scrolling  807  of rotatable input mechanism  806  in the counter-clockwise (or alternatively, clockwise) direction that corresponds to a navigation (e.g., scrolling) of navigation user interface  804  in an upwards direction. Because sixth stack item  834  is the “last” item of stack  814 , scrolling  807  causes (instead of continuing to “flip through” stack  814 ) navigation user interface  804  to transition from display of stack  814  to display of one or more menu icons (e.g., library menu icon  838 ) of navigation user interface  804 . Further, electronic device  800  continually updates display of scroll bar  812  to correspond with the navigation (e.g., scrolling) of navigation user interface in the upwards direction. 
     In  FIG. 8P , electronic device  800  receives continues to receive scrolling  807  of rotatable input mechanism  806  in the counter-clockwise (or alternatively, clockwise) direction that corresponds to a navigation (e.g., scrolling) of navigation user interface  804  in an upwards direction until navigation user interface  804  reaches the top of navigation user interface  804  (e.g., the opposite end of navigation user interface  804  from the region displaying stack  814 ). Further upwards navigation (e.g., scrolling) of navigation user interface  804  causes display of additional menu icons (e.g., search menu icon  840 , now playing menu icon  842 , stations menu icon). Further, electronic device  800  continually updates display of scroll bar  812  to correspond with the navigation (e.g., scrolling) of navigation user interface in the upwards direction until scroll bar  812  indicates that the user interface has been navigated to the very top. 
       FIG. 8Q  illustrates navigation user interface  804  navigated to the top of the user interface and displaying the menu icons region. In some embodiments, navigation user interface  804  includes library menu icon  838 , search menu icon  840 , and now playing menu icon  842 . In some embodiments, in addition or instead of library menu icon  838 , navigation user interface includes a (radio) stations icon. In some embodiments, at least a portion (e.g., a top portion) of stack  814  is still visible in the menu icons region of navigation user interface  804 . 
     In some embodiments, in response to detecting user selection of now playing menu icon  842 , electronic device  800  displays (e.g., replaces navigation user interface  804  with) control user interface  888 , which includes an indication of the currently-playing audio item. In some embodiments. 
     In some embodiments, in response to detecting user selection of the stations icon, electronic device  800  displays a stations list user interface that includes a list of available radio stations by genre. In some embodiments, in response to detecting user selection of a genre from the displayed list, electronic device  800  displays a list of (radio) stations corresponding to the selected genre. In some embodiments, in response to detecting user selection of a station from the list of presented stations, electronic device  800  displays control user interface  888  (which includes an indication of the selected station) and causes audio output of the selected station. 
     In some embodiments, in response to detecting user selection of search menu icon  840 , electronic device  800  displays a search user interface that includes a dictate icon and a scribble icon. In some embodiments, in response to detecting user selection of the dictate icon, electronic device  800  enables a user to search for an audio item using dictation. In some embodiments, in response to detecting user selection of the scribble icon, electronic device  800  enables a user to search for an audio item using “scribble” input (e.g., handwriting input) on touch-sensitive display  802  of electronic device  800 . In some embodiments, when a first letter (e.g., “A”) is entered in a search, electronic device  800  provides selectable suggestions corresponding to the entered letter. In some embodiments, once the user returns to the search function, the search mode is automatically selected to be the previously-used mode (e.g., dictation mode or scribble mode). In some embodiments, electronic device  800  enables the user to configure a default setting between the dictation mode and the scribble mode. In some embodiments, when a search is performed (using either dictation mode or scribble mode), electronic device  800  displays a list of audio items which, when selected, causes the device to display control user interface  888  and cause audio output of the selected audio item. 
     In  FIG. 8R , electronic device  800  detects, via touch-sensitive display  802  (or alternatively, a voice input via a mic or rotation input via rotatable input mechanism  806 ), user activation of library menu icon  838 . For example, the user activation is a tap gesture  809  on library menu icon  838 . As shown in  FIG. 8S , in response to detecting tap gesture  809 , electronic device  800  displays (e.g., replaces display of navigation user interface  804  with) a library user interface  844  that includes a plurality of library icons. In some embodiments, library user interface  844  includes a first library icon  846  (e.g., “Playlists”), a second library icon  848  (e.g., “Artists”), a third library icon  850  (e.g., “Albums”), and a fourth library icon  852  (e.g., “Songs”). In some embodiments, in library user interface  844 , electronic device  800  maintains display of selectable indication  808 . In some embodiments, in library user interface  844 , selectable indication  808  includes an indication that the currently-displayed user interface is library user interface  844  (e.g., a textual indication stating “LIBRARY”). Further, in some embodiments, in library user interface  844 , user selection of selectable indication  808  causes electronic device  800  to display (e.g., replace display of library user interface  844  with) navigation user interface  804 . 
     In  FIG. 8T , electronic device  800  detects, via touch-sensitive display  802  (or alternatively, a voice input via a mic or rotation input via rotatable input mechanism  806 ), user activation of first library icon  846  (e.g., “Playlists”). For example, as shown in  FIG. 8T , the user activation is a tap gesture  811  on first library icon  846 . As shown in  FIG. 8U , in response to detecting tap gesture  811 , electronic device  800  displays (e.g., replaces display of library user interface  844  with) a playlists user interface  854  that includes a plurality of playlist items corresponding to the albums corresponding to the stack items in stack  814 . For example, playlist user interface  854  includes a first playlist item  856  (e.g., “My New Music Mix”) corresponding to third stack item  826 , a second playlist item  858  (e.g., “Workout”) corresponding to fourth stack item  830 , a third playlist item  860  (e.g., “Sunday Chill List”) corresponding to fifth stack item  832 , and a fourth playlist item  862  (e.g., “Roadtrip Favorites”) corresponding to sixth stack item  834 . In some embodiments, in playlist user interface  8854 , electronic device  800  maintains display of selectable indication  808 . In some embodiments, in playlist user interface  854 , selectable indication  808  includes an indication that the currently-displayed user interface is playlist user interface  854  (e.g., a textual indication stating “PLAYLISTS”). Further, in some embodiments, in playlist user interface  854 , user selection of selectable indication  808  causes electronic device  800  to display (e.g., replace display of playlist user interface  854  with) library user interface  844 . 
     In  FIG. 8V , electronic device  800  detects, via touch-sensitive display  802  (or alternatively, a voice input via a mic or rotation input via rotatable input mechanism  806 ), user activation of second playlist item  858  (e.g., “Workout”). For example, as shown in  FIG. 8V , the user activation is a tap gesture  813  on second playlist item  858 . As shown in  FIG. 8W , in response to detecting the user activation of second playlist item  858 , electronic device  800  displays (e.g., replaces display of playlist user interface  854  with) a control user interface  888  that corresponds to control user interface  622  described above with reference to  FIGS. 6C-6S . As with control user interface  622 , control user interface  888  includes display of an indication  864  of the currently-playing audio item (e.g., “First WO Track”) and an indication  866  of an artist (e.g., “First WO Artist”) corresponding to the currently-playing audio item. In some embodiments, electronic device  800  automatically causes audio output (e.g., via internal speakers of electronic device  800  or via an external device, such as headphones paired with electronic device  800 , an external speaker paired with electronic device  800 , or speakers of a different device, such as a smartphone, tablet, laptop computer, or desktop computer, paired with electronic device  800 ) of a first audio item associated with second playlist item  858  (which, in the embodiment depicted in  FIG. 8W , is “First WO Track”). In some embodiments, in response to detecting the user activation of second playlist item  858 , electronic device displays (e.g., replaces display of playlist user interface  854  with) a tracks user interface (e.g., tracks user interface  878  depicted in  FIG. 8AA ). 
       FIG. 8X  illustrates electronic device  800  displaying library user interface  844  and, while displaying library user interface  844 , detecting, via touch-sensitive display  802  (or alternatively, a voice input via a mic or rotation input via rotatable input mechanism  806 ), user activation of second library icon  848  (e.g., “Artists”). For example, the user activation is a tap gesture  815  on second library icon  848 . As shown in  FIG. 8Y , in response to detecting tap gestures  815  on second library icon  848  (e.g., “Artists”), electronic device  800  displays (e.g., replaces display of library user interface  844  with) a artists user interface  868  that includes a first artist icon  870  (e.g., displaying “First Artist,” an indication of the name of the first artist), a second artist icon  872  (e.g., displaying “Second Artist,” an indication of the name of the second artist), a third artist icon  874  (e.g., displaying “Third Artist,” an indication of the name of the third artist), and a fourth artist icon  876  (e.g., displaying “Fourth Artist,” an indication of the name of the fourth artist). In some embodiments, in artists user interface  868 , electronic device  800  maintains display of selectable indication  808 . In some embodiments, in artists user interface  868 , selectable indication  808  includes an indication that the currently-displayed user interface is artists user interface  868  (e.g., a textual indication stating “ARTISTS”). Further, in some embodiments, in artists user interface  868 , user selection of selectable indication  808  causes electronic device  800  to display (e.g., replace display of artists user interface  868  with) library user interface  844 . 
     In  FIG. 8Z , electronic device  800  detects, via touch-sensitive display  802  (or alternatively, a voice input via a mic or rotation input via rotatable input mechanism  806 ), user activation of fourth artist icon  876  (e.g., “Fourth Artist”). For example, as shown in  FIG. 8Z , the user activation is a tap gesture  817  on fourth artist icon  876 . As shown in  FIG. 8AA , in response to detecting the user activation of fourth artist icon  876 , electronic device  800  displays (e.g., replaces display of artist user interface  868  with) a tracks user interface  878  that includes one or more track items corresponding to audio items associated with the fourth artist. For example, as shown in  FIG. 8AA , tracks user interface  878  includes a first track item  880  (e.g., displaying “FA Track One,” an indication of the name of the first track), a second track item  882  (e.g., displaying “FA Track Two,” an indication of the name of the second track), a third track item  884  (e.g., displaying “FA Track Three,” an indication of the name of the third track), and a fourth track item  886  (e.g., displaying “FA Track Four,” an indication of the name of the fourth track). In some embodiments, in tracks user interface  878 , electronic device  800  maintains display of selectable indication  808 . In some embodiments, in tracks user interface  878 , selectable indication  808  includes an indication that the currently-displayed user interface is tracks user interface  878  (e.g., a textual indication stating the name of the artist, such as “FOURTH ARTIST”). Further, in some embodiments, in tracks user interface  878 , user selection of selectable indication  808  causes electronic device  800  to display (e.g., replace display of tracks user interface  878  with) artists user interface  868 . 
     In  FIG. 8AB , electronic device  800  detects, via touch-sensitive display  802  (or alternatively, a voice input via a mic or rotation input via rotatable input mechanism  806 ), user activation of first track item  880  (e.g., “FA Track One”). For example, as shown in  FIG. 8AB , the user activation is a tap gesture  819  on first track item  880 . As shown in  FIG. 8AC , in response to detecting tap gesture  819 , electronic device  800  displays (e.g., replaces display of tracks user interface  878  with) control user interface  888  that corresponds to control user interface  622  described above with reference to  FIGS. 6C-6S . As with control user interface  622 , control user interface  888  includes indication  864  of the currently-playing audio item (e.g., “FA Track One”) and indication  866  of an artist (e.g., “Fourth Artist”) corresponding to the currently-playing audio item. 
       FIGS. 9A-9D  are a flow diagram illustrating a method for playing and managing audio items using an electronic device in accordance with some embodiments. Method  900  is performed at a device (e.g.,  100 ,  300 ,  500 ) with a touch-sensitive display. Some operations in method  900  are, optionally, combined, the order of some operations is, optionally, changed, and some operations are, optionally, omitted. 
     As described below, method  900  provides an intuitive way for playing and managing audio items. The method reduces the cognitive burden on a user for playing and managing audio items, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to play and manage audio items faster and more efficiently conserves power and increases the time between battery charges. 
     At block  902 , the electronic device (e.g.,  800 ) displays, on the display (e.g.,  802 ), an ordered stack (e.g.,  814 ) of audio playlist items in a first position, where the ordered stack of audio playlist items includes a first item (e.g.,  816 ), a second item, and a third item, and where the first item is displayed in the first position. In some examples, the ordered stack of audio playlist items (e.g.,  814 ) is a stack of records. In some examples, the ordered stack of audio playlist items (e.g.,  814 ) is a stack of audio tracks. In some examples, the ordered stack of audio playlist items (e.g.,  814 ) is a collection of titles or albums. In some examples, the ordered stack of audio playlist items (e.g.,  814 ) is a collection of radio items, news items, or podcasts. In some examples, the ordered stack of audio playlist items (e.g.,  814 ) is a collection of audio recordings. 
     Displaying the ordered stack of audio playlist items provides a visual feedback that enables the user to visualize (and thus experience the sensation of) flipping through a real stack of playlist items. Providing improved visual feedback to the user enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  904 , while displaying, on the display (e.g.,  802 ), the ordered stack of audio playlist items (e.g.,  814 ) in the first position, the electronic device (e.g.,  800 ) receives user selection of the first item. In some embodiments, at block  906 , in response to receiving the user selection of the first item, the electronic device (e.g.,  800 ) displays, on the display (e.g.,  802 ), a control user interface (e.g.,  888 ) (e.g., a main user interface of a music application), where the control user interface includes an indication of a first audio item (e.g., a first track of the selected playlist) associated with the first item. In some embodiments, at block  908 , the electronic device (e.g.,  800 ) causes audio output of the first audio item. For example, the electronic device (e.g.,  800 ) causes the audio output of the second audio item via internal speakers of the electronic device or via an external device, such as headphones paired with the electronic device, an external speaker paired with the electronic device, or the speakers of a different device (e.g., a smartphone, tablet, laptop computer, or desktop computer) paired with the electronic device. 
     At block  910 , the electronic device (e.g.,  800 ) receives a first input (e.g.,  801 ,  803 ,  805 ) in a first direction. In some embodiments, the electronic device (e.g.,  800 ) includes a rotatable input mechanism (e.g.,  806 ) (e.g., a physical rotatable crown of the electronic device for navigating the display of the electronic device), and the first input is based on a movement of the rotatable input mechanism in the first direction (which can either be rotation in a clockwise direction or in a counter-clockwise direction), and the second input is based on a (additional) continued movement of the rotatable input mechanism in the first direction. In some embodiments, the first input is a gesture on the touch-sensitive display (e.g.,  802 ) corresponding to a request to scroll in the first direction (e.g., an upwards direction or a downwards direction), and the second input is an additional finger scroll in the first direction. 
     Having the first input be based on the movement of the rotatable input mechanism in the first direction and the second input be based on the continued movement of the rotatable input mechanism in the first direction provides an improved input technique for navigating a user interface that seamlessly transition from one navigation mode to a different navigation mode. Providing a seamless transition between different navigation modes within a user interface using the same input technique and reducing the number of inputs needed to perform the technique enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     At block  912 , in response to receiving the first input, the electronic device (e.g.,  800 ) displays, on the display (e.g.,  802 ), the ordered stack of audio playlist items (e.g.,  814 ) in a second position, where the second item is displayed in the second position. 
     At block  914 , the electronic device (e.g.,  800 ) receives a second (additional) input in the first direction. 
     At block  916 , in response to receiving the second input, the electronic device (e.g.,  800 ), at block  918 , in accordance with a determination that the second item is a terminal item (e.g., the first item in the stack or the last item in the stack) in the ordered stack of audio playlist items (e.g.,  814 ), displays, on the display (e.g.,  802 ), at least one menu affordance of a plurality of menu affordances, and, at block  920 , in accordance with a determination that the second item is an intermediate item (e.g., any item in the stack that is not the first or the last item) in the ordered stack of audio playlist items (e.g.,  814 ), displays, on the display (e.g.,  802 ), the ordered stack of audio playlist items in a third position, where the third item is displayed in the third position. In some examples, the plurality of menu affordances are a plurality of quick access menus (e.g.,  842 ,  840 ,  838 ), such as a “now playing” menu, a “search” menu, and a “library” menu. 
     Displaying at least one menu affordance of the plurality of menu affordances in accordance with a determination that the second item is a terminal item and displaying the ordered stack of audio playlist items in a third position in accordance with a determination that the second item is an intermediate item allows for the user to seamlessly transition between viewing the plurality of menu affordances and viewing the ordered stack of audio playlist items without providing addition input or providing a request to change navigation modes. Performing an operation when a set of conditions has been met without requiring further user input enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, the terminal item (e.g., an audio playlist item that is in the first or last position of the ordered stack) is the first of the audio playlist items in the ordered stack of audio playlist items (e.g.,  814 ). In some examples, the terminal item (e.g., an audio playlist item that is in the first or last position of the ordered stack) is the last of the audio playlist items in the ordered stack of audio playlist items (e.g.,  814 ). In some examples, the intermediate item (e.g., an audio playlist item that is not in the first or last position of the ordered stack) is located between a first of the audio playlist items in the ordered stack of audio playlist items (e.g.,  814 ) and a last of the audio playlist items in the ordered stack of audio playlist items. 
     In some embodiments, at block  922 , while displaying the at least one menu affordance of the plurality of menu affordances (e.g.,  842 ,  840 ,  838 ) (e.g., a “now playing” menu, a “search” menu, a “library” menu), the electronic device (e.g.,  800 ) receives user selection of a first menu affordance (e.g., the “library” menu) of the plurality of menu affordances. In some embodiments, at block  924 , in response to receiving the user selection of the first menu affordance (e.g., the “library” menu), the electronic device (e.g.,  800 ) displays, on the display, a plurality of audio group affordances (e.g., a list of available playlists, artists, albums, songs). In some embodiments, at block  926 , the electronic device receives user selection (e.g.,  811 ) of a first audio group affordance (e.g.,  846 ) (e.g., playlists) of the plurality of playlist menu affordances. In some embodiments, at block  928 , in response to receiving the user selection of the first audio group affordance (e.g., playlists), the electronic device displays, on the display, one or more audio group items (e.g.,  856 ,  858 ,  860 ,  862 ) (e.g., one or more playlists) associated with the first audio group affordance. In some embodiments, at block  930 , the electronic device receives user selection (e.g.,  813 ) of a first audio group item (e.g.,  858 ) (e.g., a particular playlist) of the one or more audio group items. In some embodiments, at block  932 , in response to receiving the user selection of the first audio group item, the electronic device (e.g.,  800 ), at block  934 , displays, on the display, a control user interface (e.g.,  888 ) (e.g., a control music interface of a music application), where the control user interface includes an indication of a first audio item (e.g.,  864 ) (e.g., a song associated with the selected playlist) of the first audio group item, and, at block  936 , causes audio output of the first audio item. For example, the electronic device causes the audio output of the first audio item via internal speakers of the electronic device or via an external device, such as headphones paired with the electronic device, an external speaker paired with the electronic device, or the speakers of a different device (e.g., a smartphone, tablet, laptop computer, or desktop computer) paired with the electronic device. 
     In some embodiments, at block  938 , while displaying the at least one menu affordance of the plurality of menu affordances (e.g.,  842 ,  840 ,  838 ) (e.g., a “now playing” menu, a “search” menu, a “library” menu), the electronic device (e.g.,  800 ) receives user selection (e.g.,  809 ) of a first menu affordance (e.g.,  838 ) (e.g., the “library” menu) of the plurality of menu affordances. In some embodiments, at block  940 , in response to receiving the user selection of the first menu affordance (e.g., the “library” menu), the electronic device (e.g.,  800 ) displays, on the display, a plurality of audio group affordances (e.g.,  846 ,  848 ,  850 ,  852 ) (e.g., a list of available playlists, artists, albums, songs). In some embodiments, at block  942 , the electronic device (e.g.,  800 ) receives user selection (e.g.,  815 ) of a first audio group affordance (e.g.,  848 ) (e.g., artists) of the plurality of playlist menu affordances. In some embodiments, at block  944 , in response to receiving the user selection of the first audio group affordance (e.g., artists), the electronic device displays, on the display, one or more audio group items (e.g., one or more different artists) associated with the first audio group affordance. 
     In some embodiments, at block  946 , the electronic device (e.g.,  800 ) receives user selection (e.g.,  817 ) of a first audio group item (e.g.,  876 ) (e.g., a particular artist) of the one or more audio group items. In some embodiments, at block  948 , in response to receiving the user selection of the first audio group item, the electronic device (e.g.,  800 ) displays, on the display (e.g.,  802 ), one or more audio sub-group items (e.g., albums associated with the selected artist) associated with the first audio group item. In some embodiments, at block  950 , the electronic device (e.g.,  800 ) receives user selection of a first audio sub-group item (e.g., a particular album associated with the selected artist). In some embodiments, at block  952 , in response to receiving the user selection of the first audio sub-group item (e.g., the particular album), the electronic device (e.g.,  800 ), at block  954 , displays, on the display, a control user interface (e.g.,  888 ) (e.g., a control music interface of a music application), where the control user interface includes an indication of a first audio item (e.g., a song associated with the selected album) of the first audio sub-group item, and, at block  956 , causes audio output of the first audio item. For example, the electronic device causes the audio output of the first audio item via internal speakers of the electronic device or via an external device, such as headphones paired with the electronic device, an external speaker paired with the electronic device, or the speakers of a different device (e.g., a smartphone, tablet, laptop computer, or desktop computer) paired with the electronic device. 
     Note that details of the processes described above with respect to method  900  (e.g.,  FIGS. 9A-9D ) are also applicable in an analogous manner to the methods described above and below. For example, methods  700 ,  1100 , and  1300  optionally include one or more of the characteristics of the various methods described above with reference to method  900 . For example, the method of navigating and selecting an audio item to play described in method  700  can be used to select audio items to be played through electronic device  800 . For another example, the method of quickly and efficiently switching between user interfaces of active applications described in method  1100  can be used to switch amongst active applications on electronic device  800 . For another example, the method of updating data associated with audio files using a different device as described in method  1300  can be used to update locally stored data on electronic device  800 . For brevity, these details are not repeated below. 
       FIGS. 10A-10H  illustrate exemplary user interfaces for playing and managing audio items, in accordance with some embodiments. The user interfaces in these figures are used to illustrate the processes described below, including the processes in  FIGS. 11A-11B . 
       FIG. 10A  illustrates the face of an electronic device  1000  (e.g., portable multifunction device  100 , device  300 , or device  500 ). In this non-limiting exemplary embodiment depicted in  FIGS. 10A-10H , electronic device  600  is a smartwatch. In other embodiments, electronic device  1000  can be a different type of electronic device, such as a different type of wearable device or a smartphone. 
     As shown in  FIG. 10A , electronic device  1000  displays, on touch-sensitive display  1002 , a control user interface  1004  of an application (e.g., music application) for playing audio items (e.g., songs, podcasts, radio channels). Control user interface  1004  of  FIG. 10A  corresponds to control user interface  622  described with reference to  FIGS. 6C-6S . In addition, control user interface  1004  includes a quick access menu corresponding to an application (e.g., a workout application, a music application) that is active on electronic device  1000 . For example, quick access menu can correspond to any application that can run on electronic device  1000 . In some embodiments, quick access menu  1010  is displayed adjacent to time indication  1012  at a first location (e.g., a top-right corner region) on display  1002 . 
     In some embodiments, quick access menu can correspond to a music application. In some embodiments, a music application is active on electronic device  1000  if the device is causing (e.g., via internal speakers or via an external device, such as headphones paired with the device, an external speaker paired with the device, a different device, such as a smartphone, tablet, laptop computer, or desktop computer, paired with the device) audio output of an audio item (e.g., a song, a media item, live radio, podcast) using the music application, even when the application itself is not currently being displayed on electronic device  1000 . In some embodiments, a music application is also deemed active when the application is pausing audio output of an audio item (e.g., a song, a media item, live radio, podcast), even when the application itself is not currently being displayed on electronic device  1000 . In some embodiments, a music application is inactive when the application has stopped (instead of paused) causing audio output of an audio item (e.g., a song, a media item, live radio, podcast). 
     In some embodiments, quick access menu can correspond to a workout application. In some embodiments, a workout application is active when a workout routine (e.g., distance traveled, time traveled, steps taken, distance remaining to goal, time remaining to goal) is enabled and running on the application, even when the application itself is not currently being displayed on electronic device  1000 . In some embodiments, a workout application is inactive when no workout tracking features (e.g., distance traveled, time traveled, steps taken, distance remaining to goal, time remaining to goal) are enabled on the application. 
     As mentioned above,  FIG. 10A  illustrates control user interface  1004  of a music application. In  FIG. 10A , electronic device  1000  is causing (e.g., via internal speakers of electronic device  1000  or via an external device, such as headphones paired with electronic device  1000 , an external speaker paired with electronic device  1000 , or speakers of a different device, such as a smartphone, tablet, laptop computer, or desktop computer, paired with electronic device  1000 ) audio output of, through the music application, a song titled “FA Track One.” Thus, the music application is active on electronic device  1000  of  FIG. 10A . In addition, a workout routine is also running on electronic device  1000 , and thus a workout application is also active on the device. As such,  FIG. 10A  further illustrates electronic device  1000  displaying, on control user interface  1004  corresponding to the music application, quick access menu  1010  corresponding to a workout application. 
     As shown in  FIG. 10B , electronic device  1000  detects, via touch-sensitive display  1002  (or alternatively, a voice input via a mic), user activation of quick access menu  1010 A corresponding to the workout application. For example, the user activation is a tap gesture  1001  on quick access menu  1010  corresponding to the workout application on control user interface  1004 . 
     In  FIG. 10C , in response to detecting tap gesture  1001  on quick access menu  1010 A corresponding to the workout application on control user interface  1004 , electronic device  1000  displays (e.g., replaces display of control user interface  1004  of the music application with) a main workout user interface  1014  of the workout application. In some embodiments, main workout user interface  1014  of the workout application includes representations of activity monitoring data, including, for example, active calorie data  1016 , total calorie data  1018 , bpm data  1020 , and distance traveled data  1022 , corresponding to the active workout routine. 
     While electronic device  1000  is now displaying main workout user interface  1014  of the workout application, the music application is still causing audio output of “FA Track One.” Thus, the music application remains active on electronic device  1000 . As such, in addition to displaying main workout user interface  1014 , electronic device  1000  displays a quick access menu  1010 B corresponding to the music application at the same location on display  1002  as the previous display of quick access menu  1010 A corresponding to the workout application. 
     As shown in  FIG. 10D , while the music application and the workout application remain active (e.g., the music application continues to cause audio output of tracks, the workout application continues to run the workout routine) on electronic device  1000 , electronic device  1000  detects, via touch-sensitive display  1002  (or alternatively, a voice input via a mic), user activation of quick access menu  1010 B corresponding to the music application. For example, as shown in  FIG. 10D , the user activation is a tap gesture  1003  on quick access menu  1010 B corresponding to the music application. 
     In  FIG. 10E , in response to detecting tap gesture  1003  on quick access menu  1010 B corresponding to the music application, electronic device  1000  displays (e.g., replaces display of main workout user interface  1014  corresponding to the workout application with) control user interface  1004  corresponding to the music application. Further, while displaying control user interface  1004 , the workout routine remains running on the device. As such, in addition to displaying control user interface  1004 , electronic device  1000  displays quick access menu  1010 A corresponding to the workout application at the same location on display  1002  as the previous display of quick access menu  1010 B corresponding to the music application. 
       FIG. 10F  illustrates electronic device  1000  displaying a time user interface  1016 . Time user interface  10106  includes an indication  1018  of the current time. In some embodiments, the device is in a locked mode (e.g., in a user interface locked state) while displaying time user interface  1016 . In some embodiments, the device is in an unlocked mode (e.g., in a user interface unlocked state) while displaying time user interface  1016 . 
     In  FIG. 10F , electronic device  1000  is causing (e.g., via internal speakers of electronic device  1000  or via an external device, such as headphones paired with electronic device  1000 , an external speaker paired with electronic device  1000 , or speakers of a different device, such as a smartphone, tablet, laptop computer, or desktop computer, paired with electronic device  1000 ) audio output of a track (e.g., “FA Track One”) through the music application, but not workout routine is in progress. Thus, in  FIG. 10F , the music application is active but the workout application is inactive on the device. 
     Because the music application is active on the device, electronic device  1000  also displays, at a second location (e.g., top-center region) of display  1002  different from the first location (e.g., top-right corner region), quick access menu  1010 B corresponding to the music application. Subsequent to displaying quick access menu  1010 B on time user interface  1016  at the second location, in  FIG. 10G , electronic device  1000  detects, via touch-sensitive display  1002  (or alternatively, a voice input via a mic), user activation of quick access menu  1010 B corresponding to the music application. For example, the user activation is a tap gesture  1005  on quick access menu  1010 B corresponding to the music application on time user interface  1016 . 
     In some embodiments, if electronic device  1000  is in a locked mode (e.g., in a user interface locked state) when tap gesture  1005  is detected, tap gesture  1005  also causes the device to convert from the locked mode to an unlocked mode (e.g., a user interface unlocked state). In some embodiments, if electronic device  1000  is in a locked mode (e.g., in a user interface locked state) when tap gesture  1005  is detected, tap gesture  1005  causes display of control user interface  1004  of the music application but does not cause the device to convert from the locked mode to an unlocked mode. 
     As shown in  FIG. 10H , in response to detecting tap gesture  1005 , electronic device  1000  displays (e.g., replaces display of time user interface  1016  with) control user interface  1004  of the music application. As also shown in  FIG. 10H , because a workout routine is not currently active on electronic device  1000 , control user interface  1004  does not include display of quick access menu  1010 A corresponding to the workout application. Electronic device  1000  continues to cause (e.g., via internal speakers of electronic device  1000  or via an external device, such as headphones paired with electronic device  1000 , an external speaker paired with electronic device  1000 , or speakers of a different device, such as a smartphone, tablet, laptop computer, or desktop computer, paired with electronic device  1000 ) audio output of the currently-playing track (e.g., “FA Track One”). 
       FIGS. 11A-11B  are a flow diagram illustrating a method for playing and managing audio items using an electronic device in accordance with some embodiments. Method  1100  is performed at a device (e.g.,  100 ,  300 ,  500 ) with a touch-sensitive display. Some operations in method  1100  are, optionally, combined, the order of some operations is, optionally, changed, and some operations are, optionally, omitted. 
     As described below, method  1100  provides an intuitive way for playing and managing music. The method reduces the cognitive burden on a user for playing and managing music, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to play and manage music faster and more efficiently conserves power and increases the time between battery charges. 
     At block  1102 , the electronic device (e.g.,  1000 ) receives user input initiating a first application while a second application different from the first application is active (e.g., running in the background) on the electronic device. In some examples, the first application is a music application, a video application, or a media application, and the second application is a workout application, an exercise application, or a health monitoring application (or vice versa). 
     In some embodiments, the first application is a music application, and the first application is active when the electronic device (e.g.,  1000 ) is causing audio output of an audio item (e.g., a song, a media item, live radio, podcast) associated with the first application. For example, the electronic device (e.g.,  1000 ) causes the audio output of an audio item via internal speakers of the electronic device or via an external device, such as headphones paired with the electronic device, an external speaker paired with the electronic device, or the speakers of a different device (e.g., a smartphone, tablet, laptop computer, or desktop computer) paired with the electronic device. 
     In some embodiments, the first application remains active when the first application causes the electronic device (e.g.,  1000 ) to pause causing of the audio output of the audio item. In some examples, the first application causes the electronic device (e.g.,  1000 ) to pause in response to receiving user input on a “pause” affordance of the music application to pause playing of the audio item. In some embodiments, the first application is inactive when the first application causes the electronic device (e.g.,  1000 ) to stop causing audio output of the audio item. In some examples, the first application causes the electronic device (e.g.,  1000 ) to stop causing audio output of the audio item in response to receiving user input on a “stop” affordance of the music application to stop playing of the audio item. 
     In some embodiments, the second application is a workout application, and the second application is active when a workout routine (e.g., distance traveled, time traveled, steps taken, distance remaining to goal, time remaining to goal) is enabled on the second application. 
     In some embodiments, the second application is inactive when all workout tracking features (e.g., distance traveled, time traveled, steps taken, distance remaining to goal, time remaining to goal) are disabled on the second application. 
     At block  1104 , the electronic device (e.g.,  1000 ) displays, on the display, a first user interface (e.g.,  1004 ) associated with the first application and a first affordance (e.g.,  1010 A) associated with the second application. In some examples, the first user interface (e.g.,  1004 ) is the home screen of music application. In some examples, the first user interface (e.g.,  1004 ) is the home screen of a video player application. In some examples, the first user interface (e.g.,  1004 ) is the home screen of a media application. In some examples, the first affordance (e.g.,  1010 A) is a mini-icon for a workout application. In some examples, the first affordance (e.g.,  1010 A) is a mini-icon for an exercise application. In some examples, the first affordance (e.g.,  1010 A) is a mini-icon for a health monitoring application. 
     Displaying the first user interface associated with the first application and the first affordance associated with the second application provides the user with a user interface that allows the user to, while viewing the first user interface of the first application, recognize that a second application is active on the device and that a selection of the first affordance can cause display of the second application. Providing additional control options without cluttering the UI with additional displayed controls enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     At block  1106 , the electronic device (e.g.,  1000 ) receives user selection (e.g.,  1001 ) (e.g., a tap, a detectable touch gesture) of the first affordance. 
     At block  1108 , in response to receiving the user selection (e.g.,  1001 ) of the first affordance (e.g.,  1010 A), the electronic device (e.g.,  1000 ), at block  1110 , replaces display of the first user interface (e.g.,  1004 ) with display of a second user interface (e.g.,  1014 ) associated with the second application, where the first application remains active on the electronic device, and, at block  1112 , replaces display of the first affordance (e.g.,  1010 A) with display of a second affordance (e.g.,  1010 B) associated with the first application. In some examples, the second user interface (e.g.,  1014 ) is the home screen of a workout application. In some examples, the second user interface (e.g.,  1014 ) is the home screen of a, exercise application. In some examples, the second user interface (e.g.,  1014 ) is the home screen of a health monitoring application. In some examples, the second affordance (e.g.,  1010 B) is a mini-icon for a music application. In some examples, the second affordance (e.g.,  1010 B) is a mini-icon for a video player application. In some examples, the second affordance (e.g.,  1010 B) is a mini-icon for a media application. 
     Replacing display of the first user interface with display of the second user interface associated with the second application, where the first application remains active on the device, and replacing display of the first affordance with display of the second affordance associated with the first application in response to receiving the user selection of the first affordance allows a user to quickly and easily transition back and forth between viewing one active application (e.g., the first application) and viewing another active application (e.g., the second application). Reducing the number of inputs needed to perform an operation enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  1114 , the electronic device (e.g.,  1000 ) determines that the second application is no longer active. In some examples, the electronic device (e.g.,  1000 ) determines that the second application is no longer active based on user input ending or canceling an ongoing workout session. In some examples, the electronic device determines that the second application is no longer active based on expiration of an ongoing workout session. In some examples, the electronic device determines that the second application is no longer active based on user input stopping play of an audio item. In some examples, the electronic device determines that the second application is no longer active based on all tracks of a playlist having been played. In some embodiments, at block  1116 , the electronic device (e.g.,  1000 ) receives user selection of the second affordance (e.g.,  1010 B) (e.g., a quick access menu associated with the music application) associated with the first application. In some embodiments, at block  1118 , in response to receiving the user selection of the second affordance (e.g.,  1010 B), the electronic device (e.g.,  1000 ), at block  1120  replaces display of the second user interface (e.g.,  1014 ) (e.g., of the workout application) with display of the first user interface (e.g.,  1004 ) (e.g., of the music application) associated with the first application without replacing display of the second affordance (e.g.,  1010 B) with the first affordance (e.g.,  1010 A), and, at block  1122 , ceases to display the first affordance. For example, the electronic device replaces display of the second user interface with display of the first user interface associated with the first application without replacing display of the second affordance with the first affordance and ceases to display the first affordance because the second application is no longer active. 
     Replacing display of the second user interface with display of the first user interface associated with the first application without replacing display of the second affordance with the first affordance ad ceasing to display the first affordance in response to receiving the user selection of the second affordance provides a visual feedback indicating to the user that the second application is no longer active on the device. Providing improved feedback enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  1124 , the electronic device (e.g.,  1000 ) displays, on the display (e.g.,  1002 ), a home user interface (e.g.,  1016 ) (e.g., a main user interface of the device, a time user interface of the device), where the home user interface includes the second affordance (e.g.,  1010 B) (e.g., a quick access menu associated with the music application) associated with the first application (e.g., a music application) at a first location of the display different from a second location of the display. In some examples, the first location is a top-center region of the display (e.g.,  1002 ), which can be a more readily visible portion of a display to a user. In some examples, the second location is a top-corner region of the display (e.g.,  1002 ), which can allow for less interference with other elements of the displayed interface. 
     Displaying the second affordance associated with the first application on the home user interface provides a visual indication to the user while the user is viewing the home user interface that the first application is active on the device. Providing improved feedback enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  1126 , the electronic device (e.g.,  1000 ) receives user selection (e.g.,  1005 ) of the second affordance (e.g.,  1010 B) associated with the first application. In some embodiments, at block  1128 , in response to receiving the user selection of the second affordance associated with the first application, the electronic device (e.g.,  1000 ), at block  1130 , replaces display of the home user interface (e.g.,  1016 ) with display of the first user interface (e.g.,  1004 ) associated with the first application, at block  1132 , ceases to display the second affordance (e.g.,  1010 B) (e.g., a quick access menu associated with the music application) at the first location of the display, and, at block  1134 , displays the first affordance (e.g.,  1010 A) (e.g., a quick access menu associated with the workout application) associated with the second application at the second location of the display. 
     Note that details of the processes described above with respect to method  1100  (e.g.,  FIGS. 11A-11B ) are also applicable in an analogous manner to the methods described above and below. For example, methods  800 ,  900 , and  1300  optionally include one or more of the characteristics of the various methods described above with reference to method  1100 . For example, the method of navigating and selecting an audio item to play described in method  700  can be used to select audio items to be played through electronic device  1000 . For another example, the method of navigating the displayed stack of stack items described in method  900  can be used to navigate audio items and select audio items to be played through electronic device  1000 . For another example, the method of updating data associated with audio files using a different device as described in method  1300  can be used to update locally stored data on electronic device  1000 . For brevity, these details are not repeated below. 
       FIGS. 12A-12AE  illustrate exemplary user interfaces for playing and managing audio items, in accordance with some embodiments. The user interfaces in these figures are used to illustrate the processes described below, including the processes in  FIGS. 13A-13C . 
       FIG. 12A  illustrates the face of an electronic device  1200  (e.g., portable multifunction device  100 , device  300 , or device  500 ). In this non-limiting exemplary embodiment depicted in  FIGS. 12A-12AE , electronic device  1200  is a smartphone. In other embodiments, electronic device  1200  can be a different type of electronic device, such as a wearable device (e.g., a smartwatch). 
     In some embodiments, electronic device  1200  detects, via a wireless communication radio (e.g., a WiFi connection, a Bluetooth connection), an external device (e.g., a smartwatch). In some embodiments, the external device, such as a smartwatch, is paired with electronic device  1200  (e.g., both devices are associated with the same user account). In some embodiments, a user of electronic device  1200  has not yet configured automatic push (e.g., automatic transfer of files, such as audio files, audio playlists, audio albums, folders, etc., from electronic device  1200  to the external device) settings between electronic device  1200  and the external device. 
     As shown in  FIG. 12A , in some embodiments, in response to establishing a communication link (via the wireless communication radio) between electronic device  1200  and the external device (e.g., a smartwatch), electronic device  1200  displays a setup user interface  1208  for configuring automatic push settings between electronic device  1200  and the external device. In some embodiments, setup user interface  1208  is displayed only when the user of the device has not yet configured automatic push settings on the device. In some embodiments, setup user interface  1208  includes a textual indication  1210  (e.g., “Add Music To Your Watch”) and a graphical indication  1212  of the availability of automatic push settings and a request that the user configure automatic push settings between electronic device  1200  and the external device. Setup user interface  1208  also includes a proceed icon  1216  for proceeding with configuring automatic push settings and a cancel icon  1218  (e.g., “Not Now”) for forgoing configuring automatic push settings at this time. 
     In  FIG. 12B , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic) user activation of proceed icon  1216 . For example, the user activation is a tap gesture  1201  on proceed icon  1216 . 
     As shown in  FIG. 12C , in response to detecting tap gesture  1201  on proceed icon  1216 , electronic device  1200  displays (e.g., replaces display of setup user interface  1208  with) setup selection user interface  1220 . In some embodiments, setup selection user interface  1220  includes a description  1224  of automatic push functionality and a cancel icon  1240  for forgoing configuring initial automatic push settings. In some embodiments, setup selection user interface  1220  also includes one or more playlists (or albums, artists, folders) available on (e.g., stored on) electronic device (or available via electronic device  1200  through a cloud service) to designate or de-designate for automatic push between electronic device  1200  and the external device (e.g., a smartwatch). 
     For example, in  FIG. 12C , setup selection user interface  1220  includes a first playlist  1226  (e.g., “My Top Hits”), a second playlist  1230  (e.g., “Classics”), and a third playlist  1234  (e.g., “Workout”). In some embodiments, setup selection user interface also includes toggle icons  1228 ,  1232 ,  1236  associated with each available playlist. In some embodiments, a toggle icon is in the “designated” or “on” state when it is toggled to the right (as are toggle icons  1228 ,  1232 , and  1236 ) and is in the “non-designated” or “off” state when it is toggled to the left. Thus, in  FIG. 12C , all three playlists  1226 ,  1230 , and  1234  are designated (via toggle icons  1228 ,  1232 , and  1236 ) to be automatically pushed from electronic device  1200  to the external device. In some embodiments, setup selection user interface  1220  also includes a second proceed icon  1238  for proceeding with initial automatic push configuration. 
     In  FIG. 12D , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic) user input on toggle icon  1236  corresponding to third playlist  1234  (e.g., “Workout”). For example, the user input is a tap gesture  1203  (or alternatively, a short swipe gesture) on toggle icon  1236  to de-designate third playlist  1234  for automatic push. As shown in  FIG. 12E , tap gesture  1203  on toggle icon  1236  causes toggle icon  1236  to shift from the “designated” (or “on”) state to the “non-designated” (or “off”) state. Thus, as shown in  FIG. 12E , following tap gesture  1203  on toggle icon  1236 , third playlist  1234  (e.g., “Workout”) is no longer designated for automatic push. 
     In  FIG. 12F , with first playlist  1226  and second playlist  1230  designated for automatic push and third playlist  1234  no longer designated for automatic push, electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic) user activation of second proceed icon  1238  for proceeding with configuring automatic push. For example, the user activation is a tap gesture  1205  on proceed icon  1238 . 
     As shown in  FIG. 12G , in response to detecting tap gesture  1205 , electronic device  1200  displays (e.g., replaces display of setup selection user interface  1220  with) a setup confirmation user interface  1242  for completing initial automatic push configuration. In some embodiments, setup confirmation user interface  1242  maintains display of cancel icon  1240  for cancelling the setup and forgoing completing initial automatic push configuration. In some embodiments, setup confirmation user interface  1242  includes a back icon  1252  for returning to setup selection user interface  1220  (e.g., to change selection settings). In some embodiments, setup confirmation user interface  1242  includes a graphical indication  1244  and a textual indication  1248  that automatic push configuration settings can be changed and additional playlists (or tracks, albums, folders) can be added later on. Setup confirmation user interface  1242  also includes a completing icon  1250  for affirming confirmation of the selected initial automatic push settings. In  FIG. 12H , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), user selection of completing icon  1250 . For example, as shown in  FIG. 12H , the user selection is a tap gesture  1207  on completing icon  1250 . In response detecting tap gesture  1207 , electronic device  1200  stores and applies the setup settings and exits the setup process. 
     In  FIG. 12I , electronic device  1200  displays, on touch-sensitive display  1202 , a homescreen user interface  1254 . In some embodiments, homescreen user interface  1254  includes one or more icons  1256 A-H corresponding to one or more applications installed on electronic device  1200 . In particular, homescreen user interface  1254  of electronic device  1200  includes an external device configuration icon  1256 A (e.g., for configuring, changing settings of an external device linked to electronic device  1200 , such as a paired smartwatch) corresponding to a configuration application for an external device linked with electronic device  1200  (e.g., two devices linked to the same user account). 
     In  FIG. 12J , while displaying homescreen user interface  1254 , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), user activation of external device configuration icon  1256 A. For example, as shown in  FIG. 12J , the user activation is a tap gesture  1209  on external device configuration icon  1256 A. 
     As shown in  FIG. 12K , in response to detecting tap gesture  1209 , electronic device  1200  displays (e.g., replaces display of homescreen user interface  1254  with) external device configuration user interface  1258 . In some embodiments, external device configuration user interface  1258  includes an graphical indication  1260  of the linked external device. In some embodiments, external device configuration user interface  1258  includes a listing  1266  of setting options  1266 A-E (e.g., general settings option  1266 A, passcode settings option  1266 B, clock settings option  1266 C, mail settings option  1266 D, music settings option  1266 E). In some embodiments, external device configuration user interface  1258  includes an application bar  1268  consisting of operating-system controlled applications, which includes external device configuration application, and an indication  1270  that the currently-displayed user interface (i.e., external device configuration user interface  1258 ) corresponds to the external device configuration application. 
     In  FIG. 12L , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), user selection of music settings option  1266 E within listing  1266 . For example, the user selection is a tap gesture  1211  on music settings option  1266 E. As shown in  FIG. 12M , in response to detecting tap gesture  1211 , electronic device  1200  displays (e.g., replaces display of external device configuration user interface  1258  with) an audio settings user interface  1272  associated with the linked external device. In some embodiments, audio settings user interface  1272  includes an indication  1274  of the currently-used storage amount and the storage limit of the linked external device (e.g., “USED 3.2 GB OF 4 GB”). In some embodiments, audio settings user interface  1272  includes a storage bar  1276  that proportionally the various different types of files (e.g., music files, podcast files, photo files) that are stored on the linked external device and the amount of free storage available on the linked external device. In some embodiments, audio settings user interface  1272  includes a storage limit indicator  1278  indicating the storage limit of the linked external device. In some embodiments, audio settings user interface  1272  includes an “update only with charger” setting toggle option  1280  which, in  FIG. 12M , is currently in the “off” state. In some embodiments, audio settings user interface  1272  includes an edit icon  1288  for editing list entries included in the user interface (e.g., entries of list  1290  depicted in  FIG. 12R ). In some embodiments, audio settings user interface  1272  includes a selectable indication  1252  that includes an indication (e.g., a textual indication stating “My Watch”) that the current application relates to the linked external device, and, when selected, causes electronic device  1200  to return to display of external device configuration user interface  1258 . 
     In some embodiments, audio settings user interface  1272  includes a list  1284  of playlists available on (e.g., stored on) or available via (e.g., from a cloud service) electronic device  1200  that can be automatically pushed to linked external device. The list  1284  of playlists corresponds to the list of playlists (e.g., first playlist  1226  (e.g., “My Top Hits”), second playlist  1230  (e.g., “Classics”), third playlist  1234  (e.g., “Workout”)) displayed in setup selection user interface  1220  described with reference to  FIGS. 12C-12F , with corresponding toggle icons  1228 ,  1232 , and  1236 . Because third playlist  1234  (e.g., “Workout”) was de-designated during the initial automatic push configuration process described with reference to  FIGS. 12A-12H , third playlist  1234  remains non-designated while first playlist  1226  and second playlist  1230  remain designated for automatic push. 
     In  FIG. 12N , while displaying audio settings user interface  1272 , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), user input on toggle icon  1232  corresponding to second playlist  1230  (e.g., “Classics”). For example, the user selection is a tap gesture  1213  (or alternatively, a short swipe gesture) on toggle icon  1232  corresponding to second playlist  1230 . As shown in  FIG. 12O , in response to detecting tap gesture  1213 , toggle icon  1232  corresponding to second playlist  1230  shifts to the “non-designated” (e.g., “off”) mode, thereby de-designating second play  1230  for automatic push from electronic device  1200  to the linked external device. 
     In  FIG. 12P , while displaying audio settings user interface  1272 , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), a scrolling input on audio settings user interface  1272 . For example, the scrolling input is a scrolling gesture  1215  in an upwards direction on audio settings user interface  1272 . As displayed in the transition from  FIG. 12P  through  FIG. 12R , scrolling gesture  1215  causes gradual display (e.g., a shifting up from the bottom edge of display  1202 ) of a bottom region of audio settings user interface  1272  that previously could not be displayed on display  1202 . As shown in  FIGS. 12Q-12R , scrolling gesture  1215  reveals a list  1290  of albums (or playlists, folders) currently stored locally on the linked external device. For example, as shown in  FIGS. 12Q-12R , list  1290  includes a first album  1292  (e.g., “Current Favorites”), a second album  1294  (e.g., “Heavy Rotation”), a third album  1296  (e.g., “Best Classics”), and a fourth album  1298  (e.g., “90s Playlist”) currently stored on the linked external device. 
     In  FIG. 12S , while displaying list  1290  of audio settings user interface  1272 , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), user selection of edit icon  1288 . For example, as shown in  FIG. 12S , the user selection of a tap gesture  1217  on edit icon  1288 . As shown in  FIG. 12T , in response to detecting tap gesture  1217 , electronic device  1200  displays, on audio settings user interface  1272  a plurality of remove icons  1292 A,  1294 A,  1296 A, and  1298 A corresponding to first album  1292 , second album  1294 , third album  1296 , and fourth album  1298  of list  1290 , respectively. Electronic device  1200  also displays, on audio settings user interface  1272 , a cancel icon for removing display of the plurality of remove icons. 
     In  FIG. 12U , while displaying the plurality of remove icons  1292 A,  1294 A,  1296 A, and  1298 A corresponding to first album  1292 , second album  1294 , third album  1296 , and fourth album  1298  of list  1290  on audio settings user interface  1272 , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), user selection of first remove icon  1292 A corresponding to first album  1292 . For example, as shown in  FIG. 12U , the user selection is a tap gesture  1217  on first remove icon  1292 A. As shown in  FIG. 12V , in response to detecting tap gesture  1217  on first remove icon  1292 A corresponding to first album  1292 , electronic device  1200  displays (e.g., at a bottom region of the user interface), a prompt  1299  (e.g., a pop-up prompt) over audio settings user interface  1272  requesting user confirmation for removing data corresponding to first album  1292  from local storage on the linked external device. In some embodiments, prompt  1299  includes an indication  1299 A (e.g., a textual indication) confirming the user&#39;s intent to have the data associated with the selected album (e.g., first album  1292 ) removed from the linked external device, a confirmation icon  1299 B (e.g., an icon stating “REMOVE”), and a cancel icon  1299 C for canceling the removal. 
     In  FIG. 12W , while displaying prompt  1299 , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), user selection of confirmation icon  1299 B. For example, as shown in  FIG. 12W , the user selection is a tap gesture  1219  on confirmation icon  1299 B. As shown in  FIG. 12X , in response to detecting tap gesture  1219  confirming the request to remove data associated with first album from local storage on the linked external device, electronic device  1200  removes display of prompt  1299  and removes display of first album  1292  and remove icon  1292 A corresponding to first album  1292  from audio settings user interface  1272 . As such, listing  1290  now shows only second album  1294 , third album  1296 , and fourth album  1298  as being stored locally on the linked external device. Further, electronic device  1200  causes data of corresponding to first album  1292  to be removed from the linked external device. 
     In  FIG. 12Y , while displaying the entries (e.g., second album  1294 , third album  1296 , and fourth album  1298 ) of listing  1290  and remove icons  1294 A,  1296 A, and  1298 A corresponding to the entries of listing  1290 , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), user selection of cancel icon  1240 . For example, the user selection is a tap gesture  1221  on cancel icon  1240 . As shown in  FIG. 12Z , in response to detecting tap gesture  1221 , electronic device  1200  ceases display of remove icons  1294 A,  1296 A, and  1298 A corresponding to second album  1294 , third album  1296 , and fourth album  1298 , respectively, on audio settings user interface  1272 . 
     In  FIG. 12AA , while displaying audio settings user interface  1272 , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), user input on toggle icon  1236 , which is in the “non-designated” mode (e.g., “off” mode), corresponding to third playlist  1234  (e.g., “Workout”). For example, as shown in  FIG. 12AA , the user selection is a tap gesture  1223  (or alternatively, a short swipe gesture) on toggle icon  1236 . As shown in  FIG. 12AB , in response to detecting tap gesture  1223 , toggle icon  1236  corresponding to third playlist  1234  (e.g., “Workout”) switches from the “non-designated” mode (e.g., “off” mode) to the “designated” mode (e.g., “on” mode). 
     As shown in the transition from  FIG. 12AC  to  FIG. 12AD , electronic device  1200  detects, via touch-sensitive display  1202  (or alternatively, a voice input via a mic), a scrolling input on audio settings user interface  1272 . For example, the scrolling input is a scrolling gesture  1225  in a downwards direction (thus again revealing the top portion of audio settings user interface  1272 , as shown in  FIG. 12  AD). As shown in  FIG. 12AD , toggle icon  1236  corresponding to third playlist  1234  (e.g., “Workout”) remains in the “designated” mode. Further, as also shown in  FIG. 12AD , toggle icon  1280  corresponding to an update mode (e.g., update the linked external device only when the external device is being charged v. update the linked external device irrespective of whether or not the linked external device is being charged) is in the “off” mode (e.g., update the linked external device irrespective of whether or not the linked external device is being charged). As such, as long as the external device is currently linked to electronic device  1200 , electronic device causes data associated with third playlist  1234  to be transmitted to the linked external device to be locally stored on the linked external device. If toggle icon  1280  corresponding to an update mode is in the “on” mode (e.g., update the linked external device only when the external device is being charged), electronic device  1200  causes data transmission to the linked external device only when the linked device is currently being charged. 
     In some embodiments, as further shown in  FIG. 12AD , when initiating update of (e.g., causing data corresponding to third playlist  1234  to be transmitted to) the linked external device, electronic device  1200  displays, on audio settings user interface  1272 , an indication  1297  (e.g., a textual indication stating “UPDATING . . . ”) that the linked external device is being updated to locally store the transmitted data (e.g., corresponding to third playlist  1234 ). 
     In some embodiments, as shown in  FIG. 12AE , as the update is progressing, electronic device  1200  updates indication  1295  to include a current progress (e.g., “UPDATING SONG 8 OF 25”) of the update. In some embodiments, as also shown in  FIG. 12AE , as the update is progressing, electronic device  1200  displays (e.g., adjacent to or below indication  1295 ) an update status bar  1293  graphically indicating the current progress of the update. In some embodiments, as shown in  FIG. 12AE , while causing update of the linked external device, electronic device  1200  updates display of storage limit indicator  1274  (e.g., from “USED 3.2 GB of 4 GB” to “USED 3.5 GB of 4 GB”) and storage bar  1276  to account for change in local storage use of the linked external device as the update progresses (i.e., as the external device continues to locally stores the transmitted data (e.g., corresponding to third playlist  1234 )). 
       FIGS. 13A-13C  are a flow diagram illustrating a method for playing and managing audio items using an electronic device in accordance with some embodiments. Method  1300  is performed at a device (e.g.,  100 ,  300 ,  500 ) with a touch-sensitive display and a wireless communication radio (e.g., Bluetooth, WiFi, NFC, etc.). Some operations in method  1300  are, optionally, combined, the order of some operations is, optionally, changed, and some operations are, optionally, omitted. 
     As described below, method  1300  provides an intuitive way for playing and managing audio items. The method reduces the cognitive burden on a user for playing and managing audio items, thereby creating a more efficient human-machine interface. For battery-operated computing devices, enabling a user to play and manage audio items faster and more efficiently conserves power and increases the time between battery charges. 
     At block  1302 , the electronic device (e.g.,  1200 ) displays, on the display (e.g.,  1202 ), a user interface (e.g.,  1220 ,  1272 ) including a plurality of item groups (e.g.,  1226 ,  1230 ,  1234 ) (e.g., a plurality of audio playlists, a plurality of audio albums, a plurality of track lists) and a plurality of selection affordances (e.g.,  1228 ,  1232 ,  1236 ) associated with the plurality of item groups, where a selection affordance has a first state and a second state, and where data of the plurality of item groups are stored on the electronic device. In some examples, the first state is a selected state. In some examples, the first state is a “checked” state. In some examples, the first state is an “on” state. In some examples, the second state is a non-selected state. In some examples, the second state is an “un-checked” state. In some examples, the second state is an “off” state. 
     Displaying a plurality of item groups and a plurality of selection affordances associated with the plurality of item groups, where a selection affordance can be switched between a first state and a second state to designated or de-designate the corresponding item group provides the user with a quick and efficient way to designate or de-designate the plurality of item groups. Providing additional control options without cluttering the UI with additional displayed controls enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  1304 , prior to displaying, on the display (e.g.,  1202 ), the user interface (e.g.,  1220 ,  1272 ) including the plurality of item groups (e.g., a plurality of audio playlists, a plurality of audio albums, a plurality of track lists) and the plurality of selection affordances associated with the plurality of item groups, the electronic device (e.g.,  1200 ) displays, on the display, an initial setup user interface (e.g.,  1208 ) including a proceeding affordance (e.g.,  1216 ). In some examples, the initial setup user interface (e.g.,  1208 ) is a user interface that is displayed only when a user has not yet configured automatic push settings on the device (e.g., a “get started” user interface). In some examples, the proceeding affordance (e.g.,  1216 ) is an affordance for agreeing to proceed with setting up automatic push functionality with the external device (e.g., a “get started” affordance). In some embodiments, at block  1306 , the electronic device receives user selection (e.g., a touch gesture, such as a tap) of the proceeding affordance. In some embodiments, at block  1308 , in response to receiving the user selection of the proceeding affordance, the electronic device displays the user interface. In some embodiments, the initial setup user interface is displayed in response to detecting, via the wireless communication radio, connectivity with the external device. 
     At block  1310 , the electronic device (e.g.,  1200 ) receives user input on a first selection affordance associated with a first item group. At block  1312 , in accordance with a determination that the first selection affordance is in the first state, the electronic device designates the first item group. In some examples, the electronic device (e.g.,  1200 ) designates the first item group to be transmitted to a device different from the electronic device. At block  1314 , in accordance with a determination that the first selection affordance is in the second state, the electronic device forgoes designating the first item group. 
     In some embodiments, at block  1316 , the electronic device (e.g.,  1200 ) receives a second user input (e.g.,  1215 ) (e.g., a finger scroll gesture) on the user interface (e.g.,  1272 ). In some embodiments, at block  1318 , in response to receiving the second user input (e.g., in response to a user scrolling the user interface to view user interface elements that are not currently visible on the display), the electronic device (e.g.,  1200 ) displays, on the display (e.g.,  1202 ), at least one stored item group of a plurality of stored item groups (e.g.,  1294 ,  1296 ,  1298 ) (e.g., at least one playlist of the plurality of playlists currently stored on the electronic device) stored on external device. In some embodiments, at block  1320 , the electronic device (e.g.,  1200 ) receives user selection (e.g.,  1217 ) (e.g., a detectable touch gesture, such as a tap) of an edit affordance (e.g.,  1288 ). In some embodiments, at block  1322 , in response to receiving the user selection of the edit affordance, the electronic device (e.g.,  1200 ) displays, on the display (e.g.,  1202 ), a plurality of removal affordances (e.g.,  1294 A,  1296 A,  1298   a ) associated with the plurality of stored item groups. 
     Displaying the plurality of removal affordances associated with the plurality of sorted item groups in response to receiving the user selection of the edit affordance provides a visual feedback to the user indicating that one or more of the plurality of stored item groups can be removed from local storage on the external device. Providing improved visual feedback enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, at block  1324 , the electronic device (e.g.,  1200 ) receives user selection of a first removal affordance (e.g.,  1294 A) of the plurality of removal affordances associated with a first stored item group of the plurality of stored item groups. In some embodiments, at block  1326 , in response to receiving the user selection of the first removal affordance, the electronic device (e.g.,  1200 ) causes data of the first stored item group (e.g.,  1294 ) to be removed from the external device. 
     In some embodiments, at block  1328 , prior to causing the data of the first stored item group (e.g.,  1294 ) to be removed from the external device, the electronic device (e.g.,  1200 ) displays, on the display (e.g.,  1202 ), a confirmation affordance (e.g.,  1299 B). In some embodiments, at block  1330 , the electronic device (e.g.,  1200 ) receives user selection (e.g.,  1219 ) of the confirmation affordance. In some embodiments, at block  1332 , in response to receiving the user selection of the confirmation affordance, the electronic device (e.g.,  1200 ) causes data of the first stored item group (e.g.,  1294 ) to be removed from the external device. 
     Causing data of the first stored item group to be removed from the external device in response to receiving the user selection of the first removal affordance, without additional user input on the external device, enables a user to easily and efficient control (e.g., remove) data corresponding to items stored on the external device. Performing an operation when a set of conditions has been met without requiring further user input enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     At block  1334 , subsequent to detecting, via the wireless communication radio, an external device (e.g., a smartphone, a smartwatch, a tablet computer, a laptop computer, a desktop computer), the electronic device (e.g.,  1200 ), at block  1336 , in accordance with a determination that the first item group is designated, automatically transmits (without any user input) data of the items associated with the first item group to the external device to be stored on the external device, and, at block  1338 , in accordance with a determination that the first item group is not designated, the electronic device forgoes automatically transmitting data of the items associated with the first item group to the external device to be stored on the external device. In some embodiments, the electronic device is paired with the external device 
     Automatically transmitting data of the items associated with the first item group to the external device to be stored on the external device in accordance with a determination that the first item group is designated and automatically transmitting data of the items associated with the first item group to the external device to be stored on the external device in accordance with a determination that the first item group is not designated enables a user to easily and efficiently control the transmission of data associated with the first item group to the external device by simply designating or de-designating the item group using the electronic device. Performing an operation when a set of conditions has been met without requiring further user input enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, in accordance with a determination that the first item group is designated, the electronic device (e.g.,  1200 ), at block  1340 , in accordance with a determination that a first item associated with the first item group is stored on the external device (e.g., an audio item of the designated playlist is already stored on the external device), forgoes automatically transmitting the data of the first item to the external device. 
     In some embodiments, in accordance with the determination that the first item group is designated, the electronic device (e.g.,  1200 ), at block  1342 , in accordance with a determination that a second item not associated with the first item group stored on the electronic device is stored on the external device (e.g., an audio item exists in the corresponding playlist of the external device because the playlist previously contained the audio item, but the audio item has been removed from the playlist on the electronic device), causes data of the second item to be removed from the external device. 
     In some embodiments, at block  1344 , prior to automatically transmitting (without any user input) the data of the items in the first item group to the external device to be stored on the external device, the electronic device (e.g.,  1200 ) displays, on the display (e.g.,  1202 ), a confirmation sheet indicating that the first item group is designated. In some examples, the confirmation sheet is a pop-up sheet that partially covers the display. In some examples, the confirmation sheet is a confirmation page that entirely covers the display. 
     In some embodiments, at block  1346 , prior to automatically transmitting (without any user input) the data of the items in the first item group to the external device to be stored on the external device, the electronic device (e.g.,  1200 ) receives, via the wireless communication radio, charge state information (e.g., information concerning whether or not the external device is being charged) of the external device. In some embodiments, at block  1348 , in accordance with a determination, based on the received charge state information, that the external device is currently being charged, the electronic device (e.g.,  1200 ) automatically transmits (without any user input) the data of the items associated with the first item group to the external device. In some embodiments, at block  1350 , in accordance with a determination, based on the received charge state information, that the external device is not currently being charged, the electronic device (e.g.,  1200 ) forgoes automatically transmitting the data of the items associated with the first item group to the external device. 
     Automatically transmitting the data of the items associated with the first item group to the external device in accordance with a determination, based on the received charge state information, that the external device is currently being charged and forgoing automatically transmitting the data of the items associated with the first item group to the external device in accordance with a determination, based on the received charge state information, that the external device is not currently being charged enables a user to not have to worry about the charge state of the external device when the data is being transmitted to the external device for local storage on the external device, which can be a battery-intensive process. Performing an operation when a set of conditions has been met without requiring further user input enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     In some embodiments, a default state of the first selection affordance is the first state. Thus, in some embodiments, the default setting for a playlist newly added to the electronic device is to be automatically pushed. 
     In some embodiments, the user interface (e.g.,  1272 ) includes a storage limit indicator (e.g.,  1274 ,  1278 ) of the external device. In some examples, the storage limit indicator indicates the maximum storage capacity of the external device (e.g., “4 GB,” “16 GB,” “32 GB”). 
     In some embodiments, the user interface (e.g.,  1272 ) includes a storage bar (e.g.,  1276 ) indicating storage information (e.g., types of data files stored on the external device, such as music, applications, photos, media) of the external device. In some examples, the different types of data files are indicated proportionally to one&#39;s respective amount of used storage within the storage bar by adjusting the length of mini-bars associated with the different data types within the storage bar. In some examples, the different types of data files are indicated using different colors. In some examples, while automatically transmitting data of the items associated with the first item group to the external device, the electronic device displays a status indicator (e.g., a status bar that indicates current progress by “filling up” the bar, text that indicates current progress (e.g., “updating  5  of  40 ”)) indicating the current progress of the transmission. 
     In some embodiments, at block  1352 , subsequent to transmitting the data of the items associated with the first item group to the external device, the electronic device (e.g.,  1200 ) receives, via the wireless communication radio, updated storage information (reflecting the data transfer) of the external device. In some embodiments, at block  1354 , in response to receiving the updated storage information of the external device, the electronic device (e.g.,  1200 ) updates the storage bar to reflect the updated storage information. Updating the storage bar to reflect the updated storage information in response to receiving the updated storage information of the external device provides the user with easily recognizable feedback regarding the local storage status of the external device, which may have a limited amount of available local storage. Providing improved feedback enhances the operability of the device and makes the user-device interface more efficient (e.g., by helping the user to provide proper inputs and reducing user mistakes when operating/interacting with the device) which, additionally, reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently. 
     Note that details of the processes described above with respect to method  1300  (e.g.,  FIGS. 13A-13C ) are also applicable in an analogous manner to the methods described above. For example, the method of navigating and selecting an audio item to play described in method  700  can be used to select audio items to be played through electronic device  1200 . For another example, the method of navigating the displayed stack of stack items described in method  900  can be used to navigate audio items and select audio items to be played through electronic device  1200 . For another example, the method of quickly and efficiently switching between user interfaces of active applications described in method  1100  can be used to switch amongst active applications on electronic device  1200 . For brevity, these details are not repeated below. 
     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 techniques and their practical applications. Others skilled in the art are thereby enabled to best utilize the techniques and various embodiments with various modifications as are suited to the particular use contemplated. 
     Although the disclosure and examples have been fully described with reference to the accompanying drawings, it is to be noted that various changes and modifications will become apparent to those skilled in the art. Such changes and modifications are to be understood as being included within the scope of the disclosure and examples as defined by the claims.

Metadata:
Filing Date: 20171011
Publication Date: 20210223
Grant Date: 20210223
Priority Date: 20170512
Inventors: CARRIGAN, TAYLOR G.
FOSS, CHRISTOPHER PATRICK
LEMAY, STEPHEN O.
Assignee: APPLE INC
CPC Classifications: [{"code": "G06F3/0362", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F16/64", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F16/639", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0488", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4126", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0482", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04N21/4126", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4126", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4586", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/433", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/8113", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4825", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/47214", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/8173", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/43637", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/41407", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/8113", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/43637", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/433", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4825", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4586", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/8173", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/41407", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F16/64", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/47214", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4825", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/433", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0488", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/8173", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4586", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0362", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0482", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04N21/43637", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/8113", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F16/64", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/41407", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0362", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/47214", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0482", "inventive": true, "first": true, "tree": "[]"}, {"code": "G06F3/0488", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F16/639", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F16/639", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F16/64", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/41407", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4586", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4825", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/43637", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/4126", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0488", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0362", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/8113", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/8173", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/433", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/0482", "inventive": true, "first": true, "tree": "[]"}, {"code": "G06F16/639", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N21/47214", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 62705659