Question

我尝试使用Broadcasts在两个服务之间发送一些数据。问题是：我的广播接收器类没有获取数据（没有从发送者那里获得任何数据），我不知道为什么。我将不胜感激任何帮助。感谢。

接收者 -

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);
    }
}

发件人 -

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

您需要在onStartCommand注册您的接收器。像registerReceiver(new MyReceiver(),new IntentFilter(LOCAL_BROADCAST_NAME))

这样的东西

广播的两种服务之间的通信

1 个答案: