http://www.cnmsdn.com/html/201004/1270791463ID3383.html
通過程式擷取android系統手機的鈴聲和音量。同樣,設定鈴聲和音量的方法也很簡單!
AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
//通話音量
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 = mAudioManager.getStreamMaxVolume( AudioManager.STREAM_ALARM );
current = mAudioManager.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,去文檔裡面就可以看。
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在鬧鐘項目中,使用了Ringtone作為鈴聲。則調用的streamtype 為
AudioManager.Stream_Ring.