title: seekbar thumb position change when user press device volume keys
body: <p>Im using seek bar to control volume of the device. Im able to change the volume of the device using thumb of the seek bar just by dragging it on touch pad. </p>
  
  <p>But when user presses volume(side) keys i need to set seek bar thumb position accordingly.</p>
  
  <p>Hw i can do this please let me know </p>
  
  <p>Thanks</p>