title: Android Button: Displaying black square and not img?
body: <p>I have a rather small but weird problem that I can't seem to fix.
  I am trying to display a  image for my button, and it's showing up as a black square.
  The buttons I made before this are showing up and working fine, but this button (and the rest I make afterwards) are showing up as black squares..
  Now if I change it to a ImageView instead of a Button, it displays fine.</p>
  
  <p>Has anyone experienced this issue before? If so how did you solve it? 
  I'm still pretty novice to programming and I'm teaching myself so I really don't have any help and I've been trying to fix it for awhile now. :(</p>
  
  <p>Here is the xml for the button/image.</p>
  
  <pre><code>&lt;RelativeLayout
          android:orientation="vertical"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"&gt;
  
          &lt;Button
              android:id="@+id/pause"
              android:src="@drawable/pause"
  
              android:layout_width="29px"
              android:layout_height="29px"
              android:layout_alignParentRight="true"
              android:layout_alignParentTop="true"
              android:layout_marginTop="15dp"
              android:layout_marginRight="10dp"&gt;
          &lt;/Button&gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>If you have any other questions please ask, and thanks a ton for viewing my problem! :)</p>