How to highlight a button when is pressed?

Question

I\'m making an Andorid quiz and I want to highlight a button when it\'s clicked but when the user lets go of the button that it turns in it original colour. You see I\'ve se

Answer 1

Source Code

https://drive.google.com/open?id=0BzBKpZ4nzNzUQ3RKZjE0eG15Rlk

selector.xml

normalpressed.xml

pressed.xml

    
    
    
    



**button**