How to get drawable from a button?
<p>Since on button, we can use android:drawableLeft to set the drawable on the left of a button. Is there way to get this drawable programmatically?</p>

<pre><code>&lt;Button android:id="@+id/detail_refresh_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:text="@string/refresh" 
        android:gravity="center"
        android:drawableLeft="@drawable/progress"
/&gt;
</code></pre>

<p>Is there any way to get the drawable "progress" in Java code?</p>
