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SHOULD implement live wallpapers.

If device implementations implement live wallpapers, they:

[C-1-1] MUST report the platform feature flag android.software.live_wallpaper.

3.8.8. Activity Switching

The upstream Android source code includes the overview screen , a system-level user interface for

task switching and displaying recently accessed activities and tasks using a thumbnail image of the

application’s graphical state at the moment the user last left the application.

Device implementations including the recents function navigation key as detailed in section 7.2.3

MAY alter the interface.

If device implementations including the recents function navigation key as detailed in section 7.2.3

alter the interface, they:

[C-1-1] MUST support at least up to 7 displayed activities.

SHOULD at least display the title of 4 activities at a time.

[C-1-2] MUST implement the screen pinning behavior and provide the user with a settings

menu to toggle the feature.

SHOULD display highlight color, icon, screen title in recents.

SHOULD display a closing affordance ("x") but MAY delay this until user interacts with

screens.

SHOULD implement a shortcut to switch easily to the previous activity.

SHOULD trigger the fast-switch action between the two most recently used apps, when

the recents function key is tapped twice.

SHOULD trigger the split-screen multiwindow-mode, if supported, when the recents

functions key is long pressed.

MAY display affiliated recents as a group that moves together.

[SR] Are STRONGLY RECOMMENDED to use the upstream Android user interface (or a

similar thumbnail-based interface) for the overview screen.

3.8.9. Input Management

Android includes support for Input Management and support for third-party input method editors.

If device implementations allow users to use third-party input methods on the device, they:

[C-1-1] MUST declare the platform feature android.software.input_methods and support

IME APIs as defined in the Android SDK documentation.

[C-1-2] MUST provide a user-accessible mechanism to add and configure third-party input

methods in response to the android.settings.INPUT_METHOD_SETTINGS intent.

If device implementations declare the android.software.autofill feature flag, they:

[C-2-1] MUST fully implement the AutofillService and AutofillManager APIs and honor the

android.settings.REQUEST_SET_AUTOFILL_SERVICE intent to show a default app settings

menu to enable and disable autofill and change the default autofill service for the user.

3.8.10. Lock Screen Media Control

The Remote Control Client API is deprecated from Android 5.0 in favor of the Media Notification

Template that allows media applications to integrate with playback controls that are displayed on the

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