Animate change of view background color on Android

Question

How do you animate the change of background color of a view on Android?

For example:

I have a view with a red background color. The background color of the

Answer 1

add a folder animator into res folder. (the name must be animator). Add an animator resource file. For example res/animator/fade.xml

Inside Activity java file, call this

View v = getWindow().getDecorView().findViewById(android.R.id.content);
AnimatorSet set = (AnimatorSet) AnimatorInflater.loadAnimator(this, R.animator.fade);
set.setTarget(v);
set.start();