Fixed a crash that could occur in the ObservableScrollView (311fc0b3) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/phone/ObservableScrollView.java

+15 −3

Original line number	Diff line number	Diff line
		@@ -34,6 +34,7 @@ public class ObservableScrollView extends ScrollView {
		private float mLastX;
		private float mLastY;
		private boolean mBlockFlinging;
		private boolean mTouchCancelled;

		public ObservableScrollView(Context context, AttributeSet attrs) {
		super(context, attrs);
		@@ -87,9 +88,20 @@ public class ObservableScrollView extends ScrollView {

		@Override
		public boolean dispatchTouchEvent(MotionEvent ev) {
		boolean isEndGuesture = (ev.getAction() == MotionEvent.ACTION_UP
		\|\| ev.getAction() == MotionEvent.ACTION_CANCEL);
		if (!mTouchEnabled && !isEndGuesture) {
		if (ev.getAction() == MotionEvent.ACTION_DOWN) {
		if (!mTouchEnabled) {
		mTouchCancelled = true;
		return false;
		}
		mTouchCancelled = false;
		} else if (mTouchCancelled) {
		return false;
		} else if (!mTouchEnabled) {
		MotionEvent cancel = MotionEvent.obtain(ev);
		cancel.setAction(MotionEvent.ACTION_CANCEL);
		super.dispatchTouchEvent(ev);
		cancel.recycle();
		mTouchCancelled = true;
		return false;
		}
		return super.dispatchTouchEvent(ev);