androidmulti-windowsplit-screen

Launch my two apps in split screen with one launcher - Android

In Android, I have developed two Apps. I want to launch both apps in split screen mode programmatically with one launcher. How do I do that?

Solution

  • I found the answer.

    You can use Accessibility API for such feature. It doesn't require any permissions.

    android.accessibilityservice.AccessibilityService has following apis:

    service.performGlobalAction(GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN) which you can use to initiate split screen mode.

    public List getWindows () to check wether split screen mode is on. Look for a window with AccessibilityWindowInfo.TYPE_SPLIT_SCREEN_DIVIDER

    You also will need to play with intent flags when launching activities.

     val options = ActivityOptionsCompat.makeBasic().toBundle()?.apply {
     putInt(
         ActivityOptionsFlags.KEY_LAUNCH_WINDOWING_MODE,
         ActivityOptionsFlags.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY
     )
     putInt(
         ActivityOptionsFlags.KEY_SPLIT_SCREEN_CREATE_MODE,
         ActivityOptionsFlags.SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT
     )
 }

 startActivities(listOf(intentBottom, intentTop).toTypedArray(), options)

    Using this accessibility apis and intent flags you can achieve your goal. Consult this repo by stavangr for detailed implementation.

    https://developer.android.com/reference/android/accessibilityservice/AccessibilityService.html