title: What is the differences between focused and pressed on android Button?
body: <p>I found a tutorial to create android custom button : 
  <a href="http://developer.android.com/resources/tutorials/views/hello-formstuff.html#CustomButton" rel="nofollow">http://developer.android.com/resources/tutorials/views/hello-formstuff.html#CustomButton</a></p>
  
  <p>What is the differences between <strong>pressed</strong> and <strong>focused</strong>
  And please tell me a focused condition on this button. because I couldn't find any condition which can make this button turned orange. </p>