seek bar thumb (9 patch) not recognized
<p>I have the following code for my seek bar</p>

<pre><code>&lt;SeekBar
    android:id="@+id/sbCardSpeed"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:layout_marginRight="5dp"
    android:max="100"
    android:progress="50"
    android:secondaryProgress="0"
    android:progressDrawable="@drawable/seekbar_progress"
    android:thumb="@drawable/seek_thumb" /&gt;
</code></pre>

<p>seek_thumb is a 9 patch image file called seek_thumb.9.png. The problem that this drawable is not recognized and the thumb is not shown. However when I remove the .9. from the file name then my thumb is shown with the black guide lines</p>

<p>Any idea why or how to fix this? </p>
