title: How set alpha/opacity value to color on xml drawable?
body: <p>I need to set a value of opacity to a color in xml drawable. But when i try to add the two values of opacity (#20C0C0C0) for example, don't work. The color appeares totaly transparent.</p>
  
  <p>Here is my code...</p>
  
  <pre><code>  &lt;?xml version="1.0" encoding="utf-8"?&gt;
    &lt;shape xmlns:android="http://schemas.android.com/apk/res/android" &gt;
       &lt;corners
          android:radius="2dp" /&gt;
       &lt;solid
          android:color="#CDCDCD" /&gt;
       &lt;stroke
          android:width="2dp"
          android:color="@android:color/darker_gray" /&gt;
       &lt;size 
          android:height="60dp"
          android:width="80dp"/&gt;
     &lt;/shape&gt;
  </code></pre>
  
  <p>Anyone have an idea? 
  Thanks for your help.</p>