Revert "Revert "[ActivityManager] Set appropriate relation of task to home"" (487ee1ed) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/am/ActivityStack.java

+34 −2

Original line number	Diff line number	Diff line
		@@ -1948,9 +1948,31 @@ final class ActivityStack {
		return true;
		}

		private TaskRecord getNextTask(TaskRecord targetTask) {
		final int index = mTaskHistory.indexOf(targetTask);
		if (index >= 0) {
		final int numTasks = mTaskHistory.size();
		for (int i = index + 1; i < numTasks; ++i) {
		TaskRecord task = mTaskHistory.get(i);
		if (task.userId == targetTask.userId) {
		return task;
		}
		}
		}
		return null;
		}

		private void insertTaskAtTop(TaskRecord task) {
		// If the moving task is over home stack, transfer its return type to next task
		if (task.isOverHomeStack()) {
		final TaskRecord nextTask = getNextTask(task);
		if (nextTask != null) {
		nextTask.setTaskToReturnTo(task.getTaskToReturnTo());
		}
		}

		// If this is being moved to the top by another activity or being launched from the home
		// activity, set mOnTopOfHome accordingly.
		// activity, set mTaskToReturnTo accordingly.
		if (isOnHomeDisplay()) {
		ActivityStack lastStack = mStackSupervisor.getLastStack();
		final boolean fromHome = lastStack.isHomeStack();
		@@ -3649,6 +3671,15 @@ final class ActivityStack {
		if (DEBUG_TRANSITION) Slog.v(TAG,
		"Prepare to back transition: task=" + taskId);

		boolean prevIsHome = false;
		if (tr.isOverHomeStack()) {
		final TaskRecord nextTask = getNextTask(tr);
		if (nextTask != null) {
		nextTask.setTaskToReturnTo(tr.getTaskToReturnTo());
		} else {
		prevIsHome = true;
		}
		}
		mTaskHistory.remove(tr);
		mTaskHistory.add(0, tr);
		updateTaskMovement(tr, false);
		@@ -3684,7 +3715,8 @@ final class ActivityStack {
		}

		final TaskRecord task = mResumedActivity != null ? mResumedActivity.task : null;
		if (task == tr && tr.isOverHomeStack() \|\| numTasks <= 1 && isOnHomeDisplay()) {
		if (prevIsHome \|\| task == tr && tr.isOverHomeStack()
		\|\| numTasks <= 1 && isOnHomeDisplay()) {
		if (!mService.mBooting && !mService.mBooted) {
		// Not ready yet!
		return false;