android音乐播放器监听电话状态

在手机上播放音乐的时候，我们希望监听电话的状态，当然在MID上没有电话功能，不需要监听。

 

如下代码是监听电话的状态，代码简单不做介绍直接看代码：

private boolean mResumeAfterCall = false;private PhoneStateListener mPhoneStateListener = new PhoneStateListener() {@Overridepublic void onCallStateChanged(int state, String incomingNumber) {if (state == TelephonyManager.CALL_STATE_RINGING) {AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);int ringvolume = audioManager.getStreamVolume(AudioManager.STREAM_RING);if (ringvolume > 0) {mResumeAfterCall = (player.isPlaying() || mResumeAfterCall);try {stub.pause();} catch (RemoteException e) {// TODO Auto-generated catch blocke.printStackTrace();}}} else if (state == TelephonyManager.CALL_STATE_OFFHOOK) {// pause the music while a conversation is in progressmResumeAfterCall = (player.isPlaying() || mResumeAfterCall);try {stub.pause();} catch (RemoteException e) {// TODO Auto-generated catch blocke.printStackTrace();}} else if (state == TelephonyManager.CALL_STATE_IDLE) {// start playing againif (mResumeAfterCall) {// resume playback only if music was playing// when the call was answeredtry {stub.resume();} catch (RemoteException e) {// TODO Auto-generated catch blocke.printStackTrace();}mResumeAfterCall = false;}}}}; 

 

使用的时候呢，就在service 的oncreate 里面添加，如下：

public void onCreate() {player = new MediaPlayer();super.onCreate();TelephonyManager tmgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);tmgr.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);IntentFilter filter = new IntentFilter();filter.addAction(SERVICECMD);filter.addAction(PAUSE_ACTION);receiver = new MusicServiceReceiver();registerReceiver(receiver, filter);} 

 

在ondestroy 里面删除就可以了

public void onDestroy() {// Log.e(TAG, "onDestroy" +player.isPlaying() );// System.out.println("onDestroy");unregisterReceiver(receiver);player.release();player = null;TelephonyManager tmgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);tmgr.listen(mPhoneStateListener, 0);super.onDestroy();}