Android 程序获取、设置铃声和音量
通过程序获取android系统手机的铃声和音量。同样，设置铃声和音量的方法也很简单！
AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
//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);
设置音量的方法也很简单，AudioManager提供了方法：
public void setStreamVolume(int streamType, int index, int flags)
streamType为铃声类型，例如：AudioManager.STREAM_VOICE_CALL、AudioManager.STREAM_SYSTEM等，index为音量大小
falgs为标志位。