检测传出呼叫已启动并结束

我想要检测传出呼叫何时启动并结束，并且希望在呼叫已启动时启动服务并在呼叫结束时结束服务。检测传出呼叫已启动并结束

下面是我从另一个问题得到的代码，但不知道将启动和停止活动放在哪里以使其工作。

public class CallListener { 

private CallStateListener callStateListener = null; 
private OutgoingReceiver outgoingReceiver = null; 

public CallListener(Context context) { 
this.context = context; 

callStateListener = new CallStateListener(); 
outgoingReceiver = new OutgoingReceiver(); 
} 

private class CallStateListener extends PhoneStateListener { 
@Override 
public void onCallStateChanged(int state, String incomingNumber) { 
    switch (state) { 
    case TelephonyManager.CALL_STATE_IDLE: 
    doSomething1(); 
    break; 
    case TelephonyManager.CALL_STATE_OFFHOOK: 
    doSomething2(); 
    break; 
    case TelephonyManager.CALL_STATE_RINGING: 
    doSomething3(); 
    break; 
    } 
    } 
    } 

    public class OutgoingReceiver extends BroadcastReceiver { 
    @Override 
    public void onReceive(Context context, Intent intent) { 
    doSomething4(); 
} 
} 

public void start() { 
telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); 
telephonyManager.listen(callStateListener, PhoneStateListener.LISTEN_CALL_STATE); 

IntentFilter intentFilter = new IntentFilter(Intent.ACTION_NEW_OUTGOING_CALL); 
context.registerReceiver(outgoingReceiver, intentFilter); 
} 

public void stop() { 
telephonyManager = (TelephonyManager)  context.getSystemService(Context.TELEPHONY_SERVICE); 
telephonyManager.listen(callStateListener, PhoneStateListener.LISTEN_NONE); 

context.unregisterReceiver(outgoingReceiver); 
}}

下面是在服务添加，使其工作：

public class MyService extends Service { 

private CallListener call = null; 

public MyService() { 
} 

@Override 
public int onStartCommand(Intent intent, int flags, int startId) { 
call = new CallListener(getApplicationContext()); 
call.start(); 
return(START_STICKY); 
} 

@Override 
public void onDestroy() { 
call.stop(); 
call.onDestroy(); 
} 

@Override 
public IBinder onBind(Intent intent) { 
return null; 
} 
}

非常感谢您的帮助，我可以知道这是容易的，但我只是不知道。

谢谢你，祝你有个美好的一天。 :)

来源

2013-08-04 user2563959