AudioManager am = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

//通話音量

      int max = am.getStreamMaxVolume( AudioManager.STREAM_VOICE_CALL );

      int current = am.getStreamVolume( AudioManager.STREAM_VOICE_CALL );

      Log.d(”VIOCE_CALL”, “max : ” + max + ” current : ” + current);

//系統音量

      max = mAudioManager.getStreamMaxVolume( AudioManager.STREAM_SYSTEM ); 

      current = mAudioManager.getStreamVolume( AudioManager.STREAM_SYSTEM ); 

      Log.d(”SYSTEM”, “max : ” + max + ” current : ” + current);

//鈴聲音量

      max = mAudioManager.getStreamMaxVolume( AudioManager.STREAM_RING );

      current = mAudioManager.getStreamVolume( AudioManager.STREAM_RING );

      Log.d(”RING”, “max : ” + max + ” current : ” + current);

//音樂音量

      max = mAudioManager.getStreamMaxVolume( AudioManager.STREAM_MUSIC );

      current = mAudioManager.getStreamVolume( AudioManager.STREAM_MUSIC );

      Log.d(”MUSIC”, “max : ” + max + ” current : ” + current);

//提示聲音音量

      max = am.getStreamMaxVolume( AudioManager.STREAM_ALARM );

      current = sm.getStreamVolume( AudioManager.STREAM_ALARM );

      Log.d(”ALARM”, “max : ” + max + ” current : ” + current);

設定音量的方法也很簡單，AudioManager提供了方法：
public void setStreamVolume(int streamType, int index, int flags)
其中 streamType 有內建的常量,可以在AudioManager裡面查到相關的定義。