Commit 7e6e64c2 authored Feb 07, 2018 by Amin Shaikh

Do not allocate a hardware layer for TileLayout.

This was a regression introduced by ag/3429142 which replaced the usage
of PagedTileLayout with TileLayout in QS.
PagedTileLayout#hasOverlappingRendering was overridden to return
false, but TileLayout did not have the same optimization. Since QSAnimator
animates the alpha of this layout, a hardware layer was allocated
unnecessarily, potentially causing jank in the QQS <-> QS animation.

Bug: 72632226
Test: visual and using "Debug GPU overdraw" and "Show hardware layers updates"
Change-Id: Idfa8eeac0b63ae03942cccd59b52657ab263427f

parent a13430af

packages/SystemUI/src/com/android/systemui/qs/TileLayout.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -104,6 +104,11 @@ public class TileLayout extends ViewGroup implements QSTileLayout {
		setMeasuredDimension(width, height);
		}

		@Override
		public boolean hasOverlappingRendering() {
		return false;
		}

		private static int exactly(int size) {
		return MeasureSpec.makeMeasureSpec(size, MeasureSpec.EXACTLY);
		}