Android change background color smoothly

   An easy way to achieve this is to perform a fade using AlphaAnimation.

1. Make your view a ViewGroup
2. Add a child view to it at index 0, with match_parent layout dimensions
3. Give your child the same background as the container
4. Change to background of the container to the target color
5. Fade out the child using AlphaAnimation.
6. Remove the child when the animation is complete