how to control sound in android?
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/2539264/volume-control-in-android-application">Volume Control in android application</a>  </p>
</blockquote>



<p>i m making an app for music player and i want to increase and decrease volume by using hardware buttons on mobile. so pls tell me any code to do this.</p>
