title: The only image for all button states for Android?
body: <p>I have an image for my button.
  In order to make use of it I have to have 1 additional image for each state:
  1. disabled
  2. selected
  3. pressed
  etc..</p>
  
  <p>in iOS all those additional states are handled automatically and deferred from original image provided.</p>
  
  <p>Is it possible to accomplish this for Android?</p>