Android -- 音量相关

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

//获取最大媒体音量值
int max = mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
//设置媒体音量为最大值，当然也可以设置媒体音量为其他给定的值
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, max,0);

//通话音量
int max = mAudioManager.getStreamMaxVolume( AudioManager.STREAM_VOICE_CALL );
int current = mAudioManager.getStreamVolume( AudioManager.STREAM_VOICE_CALL );
Log.d(“VIOCE_CALL”, “max : ” + max + ” current : ” + current);

//系统音量
max = mAudioManager.getStreamMaxVolume( AudioManager.STREAM_SYSTEM );
current = mAudioManager.getStreamVolume( AudioManager.STREAM_SYSTEM );
Log.d(“SYSTEM”, “max : ” + max + ” current : ” + current);

//铃声音量
max = mAudioManager.getStreamMaxVolume( AudioManager.STREAM_RING );
current = mAudioManager.getStreamVolume( AudioManager.STREAM_RING );
Log.d(“RING”, “max : ” + max + ” current : ” + current);

//音乐音量
max = mAudioManager.getStreamMaxVolume( AudioManager.STREAM_MUSIC );
current = mAudioManager.getStreamVolume( AudioManager.STREAM_MUSIC );
Log.d(“MUSIC”, “max : ” + max + ” current : ” + current);

//提示声音音量
max = mAudioManager.getStreamMaxVolume( AudioManager.STREAM_ALARM );
current = mAudioManager.getStreamVolume( AudioManager.STREAM_ALARM );
Log.d(“ALARM”, “max : ” + max + ” current : ” + current);



AudioManager audio = (AudioManager) getSystemService(Service.AUDIO_SERVICE);
//参数三AudioManager.FLAG_PLAY_SOUND | AudioManager.FLAG_SHOW_UI表示在调整媒体音量的时候会发出声音，并且弹出音量调整对话框
//如果不想要这些,可以设置为0
mAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,
AudioManager.ADJUST_RAISE, AudioManager.FLAG_PLAY_SOUND
| AudioManager.FLAG_SHOW_UI);