AppTask

finishAndRemoveTask

open fun finishAndRemoveTask(): Unit

Finishes all activities in this task and removes it from the recent tasks list.

getTaskInfo

open fun getTaskInfo(): ActivityManager.RecentTaskInfo?

Get the RecentTaskInfo associated with this task.

moveTaskTo

open fun moveTaskTo(
    location: TaskLocation, 
    executor: Executor, 
    callback: OutcomeReceiver<TaskLocation!, Exception!>
): Unit

Repositions the task to the specified TaskLocation.

If the TaskLocation's bounds are invalid (i.e. too small or not fully inside the target display), the request will be rejected.

When the repositioning request is approved or rejected, the callback will be invoked. If the request is approved, the callback will receive a TaskLocation containing the new display ID and bounds of the task. The final display ID and bounds may be adjusted to the closest acceptable states from the requested ones at the system's discretion.

If the request is rejected, the callback will receive an exception with a descriptive message accessible via Exception.getMessage(). This exception will be one of the following:

• SecurityException if the requester doesn't hold the permission required to use this method;
• SecurityException if this task cannot be placed as requested due to violation of the Background Activity Launch (BAL) policy;
• IllegalStateException if the task is not in a state that allows it to change its TaskLocation programmatically at runtime of the request;
• SecurityException if this task cannot be placed on the target display requested. This can happen when the display is not trusted and not owned by the calling app;
• IllegalArgumentException if the TaskLocation provided does not include a valid display ID or the bounds provided are not fully contained inside the given display or the bounds provided are smaller than the minimum size defined in the CDD in either direction.

It is allowed to move a task to a display with which the call of android.app.ActivityManager#isTaskMoveAllowedOnDisplay() returns false, but the task won't be allowed to be programmatically moved again until users take actions to make the same task movable again.

If the task stays on its original display, its z-order will not be affected. Otherwise, if the task moves to a different display, it will become focused.
Requires android.Manifest.permission#REPOSITION_SELF_WINDOWS

moveToFront

open fun moveToFront(): Unit

Bring this task to the foreground. If it contains activities, they will be brought to the foreground with it and their instances re-created if needed. If it doesn't contain activities, the root activity of the task will be re-launched.

setExcludeFromRecents

open fun setExcludeFromRecents(exclude: Boolean): Unit

Modify the Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS flag in the root Intent of this AppTask.

startActivity

open fun startActivity(
    context: Context!, 
    intent: Intent!, 
    options: Bundle!
): Unit

Start an activity in this task. Brings the task to the foreground. If this task is not currently active (that is, its id < 0), then a new activity for the given Intent will be launched as the root of the task and the task brought to the foreground. Otherwise, if this task is currently active and the Intent does not specify an activity to launch in a new task, then a new activity for the given Intent will be launched on top of the task and the task brought to the foreground. If this task is currently active and the Intent specifies Intent.FLAG_ACTIVITY_NEW_TASK or would otherwise be launched in to a new task, then the activity not launched but this task be brought to the foreground and a new intent delivered to the top activity if appropriate.

In other words, you generally want to use an Intent here that does not specify Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_NEW_DOCUMENT, and let the system do the right thing.