title: set background image in spinner view android
body: <p>I want to set a background image on my spinner.  Problem is , when I apply image to spinner, the height of the spinner stretches as per image size (which off course I do not want). I want that image should fit in the spinner view (as we can easily do in imagebutton view) Following example is one of my tries. </p>
  
  <pre><code> &lt;Spinner
              android:id="@+id/spinner1"
              android:layout_width="fill_parent"
              android:layout_height="wrap_content"
              android:background="@drawable/btnmusic"
              android:scaleType="fitCenter" /&gt;
  </code></pre>
  
  <p>I have also changed the scaletype with all available options but it does not work. </p>
  
  <p>Can I fix it in xml or I need to do it programmatically?</p>