android - Change volume of an alarm -

i want set volume alarm. use code nothing seems happen volume, logs show value of volume i'd set. should change volume?

my code:

final mediaplayer mediaplayer = mediaplayer.create(this, ringtonemanager.getactualdefaultringtoneuri(this,ringtonemanager.type_alarm));          final audiomanager audio = (audiomanager) getsystemservice(context.audio_service);         final int currentvolume = audio.getstreamvolume(audiomanager.stream_alarm);         log.e("point_1", "volume " + currentvolume);         audio.setstreamvolume(audiomanager.stream_alarm,0,0);         mediaplayer.start();         new timer().schedule(new timertask() {             @override             public void run() {                 mediaplayer.stop();                 log.e("point_1", "volume_after " + audio.getstreamvolume(audiomanager.stream_alarm));             }      }, 5000); 

thanks.

use code

audiomanager audiomanager =      (audiomanager)getsystemservice(context.audio_service);  audiomanager.setstreamvolume(audiomanager.stream_music,                              [int value],                              [if desired flag]); 

you should use audiomanager.stream_music instead of audiomanager.stream_alarm

and see how correctly set mediaplayer audio stream type too