title: How to get a reverse animation of ActivityOptions.makeScaleUpAnimation when finishing child activity on android?
body: <p>After JellyBean, Android SDK includes an ActivityOptions.makeScaleUpAnimation() API for starting an activity using scale-up animation from a view. I want to know how i can get a reverse animation that scales down the activity window to the original view when finishing the activity?
  And another question is that can i define the animation duration when using ActivityOptions.makeScaleUpAnimation()?</p>