Merge "Further improvement to determining visiblility of tasks in home stack." into nyc-dev (a21c6e90) · Commits · e / os / android_frameworks_base

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

+28 −27

Original line number	Diff line number	Diff line
		@@ -1587,6 +1587,33 @@ final class ActivityStack {
		// determined individually unlike other stacks where the visibility or fullscreen
		// status of an activity in a previous task affects other.
		behindFullscreenActivity = stackVisibility == STACK_INVISIBLE;
		} else if (mStackId == HOME_STACK_ID) {
		if (task.isHomeTask()) {
		if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Home task: at " + task
		+ " stackInvisible=" + stackInvisible
		+ " behindFullscreenActivity=" + behindFullscreenActivity);
		// No other task in the home stack should be visible behind the home activity.
		// Home activities is usually a translucent activity with the wallpaper behind
		// them. However, when they don't have the wallpaper behind them, we want to
		// show activities in the next application stack behind them vs. another
		// task in the home stack like recents.
		behindFullscreenActivity = true;
		} else if (task.isRecentsTask()
		&& task.getTaskToReturnTo() == APPLICATION_ACTIVITY_TYPE) {
		if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
		"Recents task returning to app: at " + task
		+ " stackInvisible=" + stackInvisible
		+ " behindFullscreenActivity=" + behindFullscreenActivity);
		// We don't want any other tasks in the home stack visible if the recents
		// activity is going to be returning to an application activity type.
		// We do this to preserve the visible order the user used to get into the
		// recents activity. The recents activity is normally translucent and if it
		// doesn't have the wallpaper behind it the next activity in the home stack
		// shouldn't be visible when the home stack is brought to the front to display
		// the recents activity from an app.
		behindFullscreenActivity = true;
		}

		}
		}

		@@ -1687,33 +1714,7 @@ final class ActivityStack {
		+ " behindFullscreenActivity=" + behindFullscreenActivity);
		// At this point, nothing else needs to be shown in this task.
		behindFullscreenActivity = true;
		} else if (isHomeStack()) {
		if (r.isHomeActivity()) {
		if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Home activity: at " + r
		+ " stackInvisible=" + stackInvisible
		+ " behindFullscreenActivity=" + behindFullscreenActivity);
		// No other activity in the home stack should be visible behind the home activity.
		// Home activities is usually a translucent activity with the wallpaper behind them.
		// However, when they don't have the wallpaper behind them, we want to show
		// activities in the next application stack behind them vs. another activity in the
		// home stack like recents.
		behindFullscreenActivity = true;
		} else if (r.isRecentsActivity()
		&& task.getTaskToReturnTo() == APPLICATION_ACTIVITY_TYPE) {
		if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY,
		"Recents activity returning to app: at " + r
		+ " stackInvisible=" + stackInvisible
		+ " behindFullscreenActivity=" + behindFullscreenActivity);
		// We don't want any other activities in the home stack visible if the recents
		// activity is going to be returning to an application activity type.
		// We do this to preserve the visible order the user used to get into the recents
		// activity. The recents activity is normally translucent and if it doesn't have
		// the wallpaper behind it the next activity in the home stack shouldn't be visible
		// when the home stack is brought to the front to display the recents activity from
		// an app.
		behindFullscreenActivity = true;
		}
		} else if (r.frontOfTask && task.isOverHomeStack()) {
		} else if (!isHomeStack() && r.frontOfTask && task.isOverHomeStack()) {
		if (DEBUG_VISIBILITY) Slog.v(TAG_VISIBILITY, "Showing home: at " + r
		+ " stackInvisible=" + stackInvisible
		+ " behindFullscreenActivity=" + behindFullscreenActivity);

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

+5 −0

Original line number	Diff line number	Diff line
		@@ -933,10 +933,15 @@ final class TaskRecord {
		}
		return false;
		}

		boolean isHomeTask() {
		return taskType == HOME_ACTIVITY_TYPE;
		}

		boolean isRecentsTask() {
		return taskType == RECENTS_ACTIVITY_TYPE;
		}

		boolean isApplicationTask() {
		return taskType == APPLICATION_ACTIVITY_TYPE;
		}