Insert home task into history when sending to back. (c8143c62) · Commits · e / os / android_frameworks_base

services/java/com/android/server/am/ActivityManagerService.java

+5 −2

Original line number	Diff line number	Diff line
		@@ -6517,11 +6517,14 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		}
		final long origId = Binder.clearCallingIdentity();
		try {
		stack.moveTaskToBackLocked(taskId, null);
		} finally {
		Binder.restoreCallingIdentity(origId);
		}
		}
		}
		}

		/**
		* Moves an activity, and all of the other activities within the same task, to the bottom

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

+40 −14

Original line number	Diff line number	Diff line
		@@ -255,7 +255,7 @@ final class ActivityStack {
		//public Handler() {
		// if (localLOGV) Slog.v(TAG, "Handler started!");
		//}
		public ActivityStackHandler(Looper looper) {
		ActivityStackHandler(Looper looper) {
		super(looper);
		}

		@@ -331,7 +331,6 @@ final class ActivityStack {
		mWindowManager = service.mWindowManager;
		mStackSupervisor = service.mStackSupervisor;
		mContext = context;
		PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
		mStackId = stackId;
		mCurrentUser = service.mCurrentUserId;
		}
		@@ -837,7 +836,7 @@ final class ActivityStack {
		}
		}

		private final void completePauseLocked() {
		private void completePauseLocked() {
		ActivityRecord prev = mPausingActivity;
		if (DEBUG_PAUSE) Slog.v(TAG, "Complete pause: " + prev);

		@@ -1765,7 +1764,7 @@ final class ActivityStack {
		for (int taskNdx = 0; taskNdx < numTasks; ++taskNdx) {
		TaskRecord task = mTaskHistory.get(taskNdx);
		final ArrayList<ActivityRecord> activities = task.mActivities;
		if (activities.size() == 0) {
		if (activities.isEmpty()) {
		continue;
		}
		TaskGroup group = new TaskGroup();
		@@ -2335,7 +2334,7 @@ final class ActivityStack {

		finishActivityResultsLocked(r, resultCode, resultData);

		if (mService.mPendingThumbnails.size() > 0) {
		if (!mService.mPendingThumbnails.isEmpty()) {
		// There are clients waiting to receive thumbnails so, in case
		// this is an activity that someone is waiting for, add it
		// to the pending list so we can correctly update the clients.
		@@ -2561,7 +2560,7 @@ final class ActivityStack {
		cleanUpActivityServicesLocked(r);
		}

		if (mService.mPendingThumbnails.size() > 0) {
		if (!mService.mPendingThumbnails.isEmpty()) {
		// There are clients waiting to receive thumbnails so, in case
		// this is an activity that someone is waiting for, add it
		// to the pending list so we can correctly update the clients.
		@@ -2698,7 +2697,7 @@ final class ActivityStack {
		mService.mHandler.sendEmptyMessage(
		ActivityManagerService.CANCEL_HEAVY_NOTIFICATION_MSG);
		}
		if (r.app.activities.size() == 0) {
		if (r.app.activities.isEmpty()) {
		// No longer have activities, so update oom adj.
		mService.updateOomAdjLocked();
		}
		@@ -3009,9 +3008,38 @@ final class ActivityStack {
		if (tr == null) {
		return false;
		}

		mTaskHistory.remove(tr);
		mTaskHistory.add(0, tr);

		// There is an assumption that moving a task to the back moves it behind the home activity.
		// We make sure here that some activity in the stack will launch home.
		ActivityRecord lastActivity = null;
		int numTasks = mTaskHistory.size();
		int taskNdx;
		for (taskNdx = numTasks - 1; taskNdx >= 1; --taskNdx) {
		final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities;
		int activityNdx;
		for (activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) {
		final ActivityRecord r = activities.get(activityNdx);
		if (r.mLaunchHomeTaskNext) {
		break;
		}
		if (taskNdx == 1 && activityNdx == 0) {
		// Final activity before tr task.
		lastActivity = r;
		}
		}
		if (activityNdx >= 0) {
		// Early exit, we found an activity that will launchHomeTaskNext.
		break;
		}
		}
		if (lastActivity != null) {
		// No early exit, we did not find an activity that will launchHomeTaskNext, set one.
		lastActivity.mLaunchHomeTaskNext = true;
		}

		if (reason != null &&
		(reason.intent.getFlags() & Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) {
		mWindowManager.prepareAppTransition(AppTransition.TRANSIT_NONE, false);
		@@ -3020,8 +3048,7 @@ final class ActivityStack {
		mNoAnimActivities.add(r);
		}
		} else {
		mWindowManager.prepareAppTransition(
		AppTransition.TRANSIT_TASK_TO_BACK, false);
		mWindowManager.prepareAppTransition(AppTransition.TRANSIT_TASK_TO_BACK, false);
		}
		mWindowManager.moveTaskToBottom(task);

		@@ -3029,9 +3056,8 @@ final class ActivityStack {
		validateAppTokensLocked();
		}

		if (mResumedActivity != null && mResumedActivity.task == tr &&
		mResumedActivity.mLaunchHomeTaskNext) {
		// TODO: Can we skip the next line and just pass mResumedAct. to resumeHomeAct.()?
		if (numTasks <= 1 \|\| (mResumedActivity != null && mResumedActivity.task == tr &&
		mResumedActivity.mLaunchHomeTaskNext)) {
		mResumedActivity.mLaunchHomeTaskNext = false;
		return mStackSupervisor.resumeHomeActivity(null);
		}
		@@ -3175,7 +3201,7 @@ final class ActivityStack {
		return true;
		}

		private final boolean relaunchActivityLocked(ActivityRecord r,
		private boolean relaunchActivityLocked(ActivityRecord r,
		int changes, boolean andResume) {
		List<ResultInfo> results = null;
		List<Intent> newIntents = null;
		@@ -3487,7 +3513,7 @@ final class ActivityStack {

		boolean removeTask(TaskRecord task) {
		mTaskHistory.remove(task);
		return mTaskHistory.size() == 0;
		return mTaskHistory.isEmpty();
		}

		TaskRecord createTaskRecord(int taskId, ActivityInfo info, Intent intent, boolean toTop) {