title: Can`t round the corners of the button
body: <p>I wrote the code below, but my ImageButton still has sharp corners. Maybe I don`t know something, if you know that, please, tell me. </p>
  
  <p><strong>My View</strong></p>
  
  <pre><code>&lt;ImageButton
      android:id="@+id/bottle"
      android:src="@drawable/bottle"
      android:background="@drawable/rouncorners"
      android:layout_width="100dp"
      android:layout_height="100dp"/&gt;
  </code></pre>
  
  <p><strong>Drawable xml file :</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="rectangle"&gt;
  &lt;corners android:radius="10dp"/&gt;
  &lt;/shape&gt;
  </code></pre>