Android 程式擷取、設定鈴聲音量

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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.

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