I'm working on making an application more Material and I'm just stuck on how to implement some shared element transitions. I have an activity A that starts another B and then calls finish() in order to remove it from the back stack. In my case I have an element I want to share between the two activities, but once it is passed from A to B, A no longer matters. If I don't call finish() after startActivity(ctx,intent, bundle) the exit/enter animation works perfectly. However, if I do call finish, there's a really ugly flicker before the animation starts.
Is there something I'm overlooking or is it just not possible to do what I am trying to do?
You can finish your activity in the onStop function, if you only want this to happen when you transition from A to B then create a flag and set it after you call startActivity(ctx,intent, bundle):
@Override
public void onStop() {
super.onStop();
if(mShouldFinish)
finish();
}
Make sure when you are done with activity B to call finish() and not finishAfterTranstion() since activity A is no longer there
After finishing the activity A, shared element in B might hang in screen if you press back. Set transitionName to null in ActivityB.onEnterAnimationComplete
to avoid this.