如果后台运行应用程序，则不会触发OnMessageReceived [英] OnMessageReceived not fired if application in background

问题描述

我已经开发了一段时间的android应用程序，并且它们都已集成了FCM并且可以正常运行.

I've been developing android apps for a while now and all of them have FCM integrated in them and functioning properly.

我有一个此应用程序，除非打开该应用程序，否则不会触发onMessageReceived；如果该应用程序已关闭，并且我收到通知，它会从闪屏中打开并遵循正常流程(不会进入Notifications活动) . N.B:我所做的所有测试均来自Firebase控制台

I have this app that the onMessageReceived isn't fired unless the app is opened, if the app is closed and I receive a notification it opens from splash and follows the normal flow (it doesn't go to the Notifications activity). N.B: all the testing I've done was from the Firebase Console

我真的不知道为什么，将不胜感激.

I really don't know why, any help would be appreciated.

这是我的代码:

public class MyFirebaseMessagingService extends FirebaseMessagingService {

private static final String TAG = "MyFirebaseMsgService";


@Override
public void onMessageReceived(RemoteMessage remoteMessage) {

    Log.wtf("RECEIVED","NOTIFICATION");

    // TODO(developer): Handle FCM messages here. 
    Log.wtf(TAG, "From: " + remoteMessage.getFrom());

    // Check if message contains a data payload.
    if (remoteMessage.getData().size() > 0) {
        Log.wtf(TAG, "Message data payload: " + remoteMessage.getData());
    }

    // Check if message contains a notification payload.
    if (remoteMessage.getNotification() != null) {
        Log.wtf(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
    }


    sendNotification("Notification");
}

private void sendNotification(String messageBody) {


    Intent intent = new Intent(this, HomeActivity.class);

    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
            PendingIntent.FLAG_ONE_SHOT);

    Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
            .setSmallIcon(R.mipmap.icon)
            .setContentTitle("FCM Message")
            .setContentText(messageBody)
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);

    NotificationManager notificationManager =
            (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
}

推荐答案

使用 Firebase ，您基本上可以发送两种类型的通知消息.

Using Firebase, you can send two type of notifications message basically.

1.通知消息:有时被称为显示消息".

1. Notification messages : sometimes thought of as "display messages."

2.数据/有效负载消息:由客户端应用处理.

2. Data/Payload messages : which are handled by the client app.

上述两种通知都有不同的行为，具体取决于您的应用是前台还是后台.

both above Notification has different behaviour, depending upon if your app is in foreground or background.

1.Notification msg + Background (通知消息+背景):已发送到通知托盘

1.Notification msg + Background : delivered to the notification tray

2.通知消息+前景:Android上的onMessageReceived()

2.Notification msg + Foreground : onMessageReceived() on Android

3.数据消息+后台:应用程序在通知托盘中接收通知有效载荷，并且仅在用户点击通知时处理数据有效载荷.

3.Data msg + Background : apps receive the notification payload in the notification tray, and only handle the data payload when the user taps on the notification.

4.Data msg + Foreground :您的应用会收到一个消息对象，其中两个有效负载都可用.

4.Data msg + Foreground : your app receives a message object with both payloads available.

有关更多说明，请选中此项.

要使用FCM控制台发送数据/有效载荷消息，请使用高级"选项并插入键和值.

For sending Data/payload message using FCM console use Advance option and insert key and value.

这篇关于如果后台运行应用程序，则不会触发OnMessageReceived的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！