title: how to create a circular imageButton in android?
body: <p>Guys i have created a imageButton in my layout file and set a circular png image as its background.but when i am running my application, its displaying me a square button with my given image placed in the middle of it.</p>
  
  <pre><code>&lt;ImageButton
      android:id="@+id/imageButton1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true"
      android:src="@drawable/sliderr" /&gt;
  </code></pre>