Check if ViewTreeObserver is alive before acting on it. (bc1870e9) · Commits · e / os / android_packages_apps_DeskClock

src/com/android/deskclock/AlarmClockFragment.java

+12 −6

Original line number	Diff line number	Diff line
		@@ -844,9 +844,10 @@ public class AlarmClockFragment extends DeskClockFragment implements

		@Override
		public boolean onPreDraw() {

		// Remove the pre-draw listener, as this only needs to occur once.
		if (observer.isAlive()) {
		observer.removeOnPreDrawListener(this);
		}
		boolean firstAnimation = true;
		int firstVisiblePosition = list.getFirstVisiblePosition();

		@@ -1376,7 +1377,9 @@ public class AlarmClockFragment extends DeskClockFragment implements
		@Override
		public boolean onPreDraw() {
		// We don't want to continue getting called for every listview drawing.
		if (observer.isAlive()) {
		observer.removeOnPreDrawListener(this);
		}
		int hairlineHeight = itemHolder.hairLine.getHeight();
		int collapseHeight =
		itemHolder.collapseExpandArea.getHeight() - hairlineHeight;
		@@ -1402,8 +1405,9 @@ public class AlarmClockFragment extends DeskClockFragment implements
		@Override
		public boolean onPreDraw() {
		// We don't want to continue getting called for every listview drawing.
		if (observer.isAlive()) {
		observer.removeOnPreDrawListener(this);

		}
		// Calculate some values to help with the animation.
		final int endingHeight = itemHolder.alarmItem.getHeight();
		final int distance = endingHeight - startingHeight;
		@@ -1506,7 +1510,9 @@ public class AlarmClockFragment extends DeskClockFragment implements
		observer.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
		@Override
		public boolean onPreDraw() {
		if (observer.isAlive()) {
		observer.removeOnPreDrawListener(this);
		}

		// Calculate some values to help with the animation.
		final int endingHeight = itemHolder.alarmItem.getHeight();