Merge "Set views below shelf explicitly invisible to skip hardware rendering" into sc-dev (1da11b55) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/StackScrollAlgorithm.java

+17 −4

Original line number	Diff line number	Diff line
		@@ -148,8 +148,22 @@ public class StackScrollAlgorithm {
		AmbientState ambientState) {

		NotificationShelf shelf = ambientState.getShelf();
		if (shelf != null) {
		if (shelf == null) {
		return;
		}

		shelf.updateState(algorithmState, ambientState);

		// After the shelf has updated its yTranslation,
		// explicitly hide views below the shelf to skip rendering them in the hardware layer.
		final float shelfTop = shelf.getViewState().yTranslation;

		for (ExpandableView view : algorithmState.visibleChildren) {
		final float viewTop = view.getViewState().yTranslation;

		if (viewTop >= shelfTop) {
		view.getViewState().hidden = true;
		}
		}
		}

		@@ -411,8 +425,7 @@ public class StackScrollAlgorithm {
		} else {
		if (view != ambientState.getTrackedHeadsUpRow()) {
		if (ambientState.isExpansionChanging()) {
		// Show all views. Views below the shelf will later be clipped (essentially
		// hidden) in NotificationShelf.
		// We later update shelf state, then hide views below the shelf.
		viewState.hidden = false;
		viewState.inShelf = algorithmState.firstViewInShelf != null
		&& i >= algorithmState.visibleChildren.indexOf(