如何知道共享元素转换何时结束

Question

我Shared Element Transitions在活动之间工作.转换工作正常,但我想知道共享元素转换何时结束,以便我可以显示其他内容.

我尝试onSharedElementEnd在SharedElementCallback我转换到的活动中使用in ,但在转换开始之前调用它.

还有我可以听的另一个回调吗？

Answer 1

您是否尝试将动画侦听器绑定到内部的共享元素视图onMapSharedElements？ViewCompat.animate(view)将给你一个新的或缓存ViewPropertyAnimator(Compat)然后绑定动画监听器应该是微不足道的.不过我还没试过.

setEnterSharedElementCallback(new SharedElementCallback() {
            @Override
            public void onMapSharedElements(List<String> names, Map<String, View> sharedElements) {
                super.onMapSharedElements(names, sharedElements);
                View keySharedElementView = sharedElements.get("keySharedElement");
                if(keySharedElementView != null){
                    ViewCompat.animate(keySharedElementView).setListener(new ViewPropertyAnimatorListenerAdapter(){
                        @Override
                        public void onAnimationEnd(View view) {
                            super.onAnimationEnd(view);
                        }
                    });
                }
            }
        });

如何添加Transition.Listener到共享元素转换？

 Transition sharedElementEnterTransition = getWindow().getSharedElementEnterTransition();
 sharedElementEnterTransition.addListener(new TransitionListenerAdapter() {
         @Override
          public void onTransitionEnd(android.support.transition.Transition transition) {
                    super.onTransitionEnd(transition);
           }
      });

Answer 2

请尝试onEnterAnimationComplete()回调您的活动.

我打赌这正是你正在寻找的.

 @Override
    public void onEnterAnimationComplete() {
        super.onEnterAnimationComplete();

    //your code 
    }

Answer 3

这是我在片段中所做的：

Transition sharedElementEnterTransition = getActivity().getWindow().getSharedElementEnterTransition();
    sharedElementEnterTransition.addListener(new Transition.TransitionListener() {
        @Override
        public void onTransitionStart(Transition transition) {

        }

        @Override
        public void onTransitionEnd(Transition transition) {

        }

        @Override
        public void onTransitionCancel(Transition transition) {

        }

        @Override
        public void onTransitionPause(Transition transition) {

        }

        @Override
        public void onTransitionResume(Transition transition) {

        }
    });