Android reverse shared element transition on back after orientation change?

Question

For shared element transition I am following this github project. It has 2 screens - one with recyclerview having number of cards & second the detail screen. As expected

Answer 1

You have to set:

requestWindowFeature(Window.FEATURE_CONTENT_TRANSITIONS);
requestWindowFeature(Window.FEATURE_ACTIVITY_TRANSITIONS);

in the calling and the called activity (MainActivity + NextActivity in this example).

I assume you open the NextActivity by calling:

ActivityOptions options = ActivityOptions.
      makeSceneTransitionAnimation(this, new Pair(viewToAnimate, "animationName"));
Intent intent = new Intent(MainActivity.this, NextActivity.class);
startActivity(intent, options.toBundle());

In the NextActivity you have to add:

animatingView.setTransitionName("animationName");

If you do this the transition will work if you tap the back button.

BUT if you turn the device and press the back button it won't work.

To solve this problem i added this in the first activity (MainActivity in this example):

animatingView.setTransitionName("animationName");

The system now knows what to animate after a screen rotation.