Android 擷取、設定鈴聲、音量、靜音、擴音器

通過api擷取、設定鈴聲、音量、靜音、擴音器其實挺簡單的。
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//首先擷取一個AudioManager  
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： 

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public void setStreamVolume(int streamType, int index, int flags)   

streamType為鈴聲類型，例如：AudioManager.STREAM_VOICE_CALL、AudioManager.STREAM_SYSTEM等，index為音量大小
falgs為標誌位。

設定震動：

</pre><pre name="code" class="java"><span style="font-family:Arial, Helvetica, sans-serif;"><span style="white-space: normal;"><span style="font-family:monospace;"><span style="white-space: pre;"></span></span></span></span><pre name="code" class="java">mVibrator
= (Vibrator) mContext.getSystemService(Service.VIBRATOR_SERVICE);     
                long[] pattern = {150, 100}; // OFF/ON/OFF/ON...    
                mVibrator.vibrate(pattern, -1);  

靜音：
設定系統聲音為0就行

//通話時設定靜音  
System.out.println("isMicrophoneMute =" + audioManager.isMicrophoneMute());  
    audioManager.setMicrophoneMute(!audioManager.isMicrophoneMute());  
   
//通話時設定免提  
System.out.println("isSpeakerphoneOn =" + audioManager.isSpeakerphoneOn());  
    audioManager.setSpeakerphoneOn(!audioManager.isSpeakerphoneOn());  

//別忘了添加許可權 

<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>

摘自：http://blog.csdn.net/qianhen136/article/details/7409775