Defer launching next task until after first layout. (bd53a314) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java

+14 −0

Original line number	Diff line number	Diff line
		@@ -164,6 +164,8 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		@ViewDebug.ExportedProperty(category="recents")
		private boolean mAwaitingFirstLayout = true;
		@ViewDebug.ExportedProperty(category="recents")
		private boolean mLaunchNextAfterFirstMeasure = false;
		@ViewDebug.ExportedProperty(category="recents")
		@InitialStateAction
		private int mInitialState = INITIAL_STATE_UPDATE_ALL;
		@ViewDebug.ExportedProperty(category="recents")
		@@ -336,6 +338,7 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		// Since we always animate to the same place in (the initial state), always reset the stack
		// to the initial state when resuming
		mAwaitingFirstLayout = true;
		mLaunchNextAfterFirstMeasure = false;
		mInitialState = INITIAL_STATE_UPDATE_ALL;
		requestLayout();
		}
		@@ -1223,6 +1226,12 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		mInitialState = INITIAL_STATE_UPDATE_NONE;
		}
		}
		// If we got the launch-next event before the first layout pass, then re-send it after the
		// initial state has been updated
		if (mLaunchNextAfterFirstMeasure) {
		mLaunchNextAfterFirstMeasure = false;
		EventBus.getDefault().post(new LaunchNextTaskRequestEvent());
		}

		// Rebind all the views, including the ignore ones
		bindVisibleTaskViews(mStackScroller.getStackScroll(), false /* ignoreTaskOverrides */);
		@@ -1665,6 +1674,11 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		}

		public final void onBusEvent(LaunchNextTaskRequestEvent event) {
		if (mAwaitingFirstLayout) {
		mLaunchNextAfterFirstMeasure = true;
		return;
		}

		int launchTaskIndex = mStack.indexOfStackTask(mStack.getLaunchTarget());
		if (launchTaskIndex != -1) {
		launchTaskIndex = Math.max(0, launchTaskIndex - 1);