title: Combine image and text to drawable
body: <p>I want to create a drawable, which consists of a map pin(bubble) and some text. The bubble should be in the background and the text in the foreground.</p>
  
  <p>This drawable should be passed in <code>super(drawable)</code> of the class <code>BalloonItemizedOverlay</code> which extends <code>ItemizedOverlay&lt;Item&gt;</code>.</p>
  
  <p>In other words, I want to show text in the bubble that appears in the map.</p>
  
  <p>I am using the Hello Mapview <a href="http://developer.android.com/resources/tutorials/views/hello-mapview.html" rel="nofollow noreferrer">tutorial</a></p>