title: Android button background selector
body: <p>I want to use the following selector for button:</p>
  
  <pre><code>&lt;selector xmlns:android="http://schemas.android.com/apk/res/android"&gt;
  
      &lt;item android:drawable="@drawable/jobs" android:state_pressed="true"&gt;
          &lt;shape android:shape="rectangle"&gt;
              &lt;corners android:radius="5dp" /&gt;
          &lt;/shape&gt;
  &lt;scale android:scaleHeight="90%" android:scaleWidth="90%" /&gt;
      &lt;/item&gt;
      &lt;item android:drawable="@drawable/jobs"&gt;&lt;/item&gt;
  
  &lt;/selector&gt;
  </code></pre>
  
  <p>But it does not work. 
  I want to make buttons corners round and 10% small in size with the same drawable. Actually I want to give a button pressed effect using single drawable. Is it possible?</p>