title: Drawable + Background Color on ImageView
body: <p>I have a Layout like this</p>
  
  <pre><code>&lt;LinearLayout&gt;
      &lt;ImageView/&gt;
      &lt;ImageView/&gt;
      &lt;ImageView/&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>I am filling all these <code>ImageViews</code> with different colors on run time using </p>
  
  <pre><code>view.setBackgroundColor()
  </code></pre>
  
  <p>When I set a drawable with rounded corners on the parent LinearLayout, it doesn't show up. Probably because I am setting background colors to ImageViews. How can I achieve that? 
  O/P should a rectangle with rounded corners containing three <code>ImageViews</code>.</p>