display button at the very bottom of the screen and right side
<p>How to display image button at the very bottom of the screen and right side.
Right now, i am using like this, but button is not showing at the very bottom of the screen.</p>

<pre><code>&lt;ImageButton
    android:id="@+id/ibdGoBack"
    android:layout_width="42dp"
    android:layout_height="42dp"
    android:layout_gravity="right|bottom"
    android:background="@drawable/back_button"
    android:contentDescription="@string/backbutton" /&gt;
</code></pre>

<p>there is only one textview on the screen.</p>
