title: Using SeekBar and setProgress doesn't change seekBar position
body: <p>I am using a <code>Seekbar</code> in a fragment and need to move the <code>Seekbar</code> to different positions. However, <code>setProgress(xxx)</code> is not working. </p>
  
  <p>How do you trigger this method programmatically for a <code>Seekbar</code>: <code>public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)</code>? Moving the <code>Seekbar</code> manually works fine. </p>