title: Unwanted padding in Android SeekBar
body: <p>I am having trouble with Android seekbar there seems to be a default padding for the seekbar view and I cant seem to remove it, I tried setting padding to "0dp" and tried setting margin to "-10dp" to see if it removes some of the space and tried setting background to null incase there is a background taking space but nothing seems to happen, the SeekBar tag is : </p>
  
  <pre><code>&lt;SeekBar
      android:paddingLeft="0px"
      android:paddingRight="0px"
      android:background="@null"
      android:id="@+id/musicSeekBar"
      android:layout_width="match_parent"
      android:layout_height="wrap_content" /&gt;
  </code></pre>
  
  <p><strong>EDIT :</strong> Ok so after some testing and trying out a few stuff I have learned this :</p>
  
  <ol>
  <li>The padding is due to the thumb drawable size</li>
  <li>Setting <code>android:thumb="@null"</code> will remove bottom and top padding</li>
  <li>The right and left padding stays even if I remove the thumb but can be removed by setting a negative margin on both sides equal to the default thumb drawable width divided by 2 so if its 32dp that would be 16dp on each side </li>
  </ol>
  
  <p>Now I need to know if there is a cleaner way of removing the padding and is the thumb size the same on all devices ? Any help is welcome.</p>