How to set button click effect in Android?

Question

In Android, when I set background image to Button, I can not see any effect on button.

I need some effect on button so user can recognize that button is clicked.

Answer 1

Create your AlphaAnimation Object that decides how much will be the fading effect of the button, then let it start in the onClickListener of your buttons

For example :

private AlphaAnimation buttonClick = new AlphaAnimation(1F, 0.8F);

// some code

public void onClick(View v) {
    v.startAnimation(buttonClick);
}

of course this is just a way, not the most preferred one, it's just easier