communication between two services by Broadcasts

Question

I try to send some data between two services using Broadcasts. The problem is: my Broadcast Receiver class don't get the data (Not getting any data from the sender) and I don't know why. I would appreciate any help. Thanks.

Receiver -

public class Background extends Service  {

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

@Override
public int onStartCommand(Intent intent, int flags, int startId) {

    return super.onStartCommand(intent, flags, startId);
}

public class MyReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        String message = intent.getStringExtra(ActivityRecognizedService.LOCAL_BROADCAST_EXTRA);
        Log.e(TAG,message);
    }
}

Sender -

public class ActivityRecognizedService extends Service {

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

@Override
public int onStartCommand(Intent intent, int flags, int startId) {

    return super.onStartCommand(intent, flags, startId);
}

private void handleDetectedActivities(List<DetectedActivity> probableActivities) {

    Intent intent = new Intent(LOCAL_BROADCAST_NAME);
    intent.putExtra(LOCAL_BROADCAST_EXTRA, str.toString());
    //LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
    sendBroadcast(intent);
}

Answer 1

You need register your receiver in onStartCommand. Something like, registerReceiver(new MyReceiver(),new IntentFilter(LOCAL_BROADCAST_NAME))