Drawable on simple button
<ol>
<li><p>How can a button (Button) receive a drawable and center it on the button without the text? </p></li>
<li><p>If you can not do this, how then do to the background does not "stretch" button at all? </p></li>
</ol>

<p>The problem is that for some button have icon and text, for others only the icon and the third type only text!  So I have to use an object alone, more stylish, rather than several different classes.</p>

<p>Google needs to improve this architecture!  If I want a button with or without text, occluding the center with the image, it is my problem, I should be able to do! </p>
