public static void beginDelayedTransition(ViewGroup sceneRoot, Transition transition) {
   if (!sPendingTransitions.contains(sceneRoot) && sceneRoot.isLaidOut()) {
     sPendingTransitions.add(sceneRoot);
     if (transition == null) {
       transition = sDefaultTransition;
     }
     Transition transitionClone = transition.clone();
     sceneChangeSetup(sceneRoot, transitionClone);
     Scene.setCurrentScene(sceneRoot, null);
     sceneChangeRunTransition(sceneRoot, transitionClone);
   }
 }
 /**
  * Convenience method to animate to a new scene defined by all changes within the given scene root
  * between calling this method and the next rendering frame. Calling this method causes
  * TransitionManager to capture current values in the scene root and then post a request to run a
  * transition on the next frame. At that time, the new values in the scene root will be captured
  * and changes will be animated. There is no need to create a Scene; it is implied by changes
  * which take place between calling this method and the next frame when the transition begins.
  *
  * <p>Calling this method several times before the next frame (for example, if unrelated code also
  * wants to make dynamic changes and run a transition on the same scene root), only the first call
  * will trigger capturing values and exiting the current scene. Subsequent calls to the method
  * with the same scene root during the same frame will be ignored.
  *
  * <p>Passing in <code>null</code> for the transition parameter will cause the TransitionManager
  * to use its default transition.
  *
  * @param sceneRoot The root of the View hierarchy to run the transition on.
  * @param transition The transition to use for this change. A value of null causes the
  *     TransitionManager to use the default transition.
  */
 public static void beginDelayedTransition(final ViewGroup sceneRoot, Transition transition) {
   if (!sPendingTransitions.contains(sceneRoot) && sceneRoot.isLaidOut()) {
     if (Transition.DBG) {
       Log.d(
           LOG_TAG, "beginDelayedTransition: root, transition = " + sceneRoot + ", " + transition);
     }
     sPendingTransitions.add(sceneRoot);
     if (transition == null) {
       transition = sDefaultTransition;
     }
     final Transition transitionClone = transition.clone();
     sceneChangeSetup(sceneRoot, transitionClone);
     Scene.setCurrentScene(sceneRoot, null);
     sceneChangeRunTransition(sceneRoot, transitionClone);
   }
 }