How to setAlpha to android Button
<p>I have three buttons, sharing same background image, i want to disable button one of them by using Alpha.</p>

<p>But when i am using the following code:</p>

<pre><code> button1.getBackground().setAlpha(45);
</code></pre>

<p>it is changing the background for all three buttons. but i need for only one.
can we done by using by Alpha()?? or some other things we can use so that button will looks in disabled mode.</p>
