【问题标题】:onMessageReceived method in FirebaseMessagingService is not called未调用 FirebaseMessagingService 中的 onMessageReceived 方法
【发布时间】:2019-10-09 21:43:30
【问题描述】:

我正在使用 Firebase 云功能发送通知。当我使用通知键发送有效负载时,通知发送但未调用方法。但是有了数据键,什么都没有发生。

这是我的 FirebaseMessagingService 代码

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {


        Log.d(TAG, "From: " + remoteMessage.getFrom());

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

            sendNotification(remoteMessage.getData().get("title"), remoteMessage.getData().get("body"));


            if (/* Check if data needs to be processed by long running job */ true) {
                // For long-running tasks (10 seconds or more) use Firebase Job Dispatcher.
                scheduleJob();
            } else {
                // Handle message within 10 seconds
                handleNow();
            }

        }

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

    }

    private void sendNotification(String title, String messageBody){

        String channelId = getString(R.string.default_notification_channel_id);

        Intent intent = new Intent(this, MainActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
                PendingIntent.FLAG_ONE_SHOT);

        Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        NotificationCompat.Builder notificationBuilder =
                new NotificationCompat.Builder(this, channelId)
                        .setSmallIcon(R.drawable.ic_logo)
                        .setContentTitle(title)
                        .setContentText(messageBody)
                        .setAutoCancel(true)
                        .setSound(defaultSoundUri)
                        .setContentIntent(pendingIntent);

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

        // Since android Oreo notification channel is needed.
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel channel = new NotificationChannel(channelId,
                    "Channel human readable title",
                    NotificationManager.IMPORTANCE_DEFAULT);
            notificationManager.createNotificationChannel(channel);
        }

        notificationManager.notify(0 , notificationBuilder.build());

    }

这是我的 firebase 云函数

exports.sendNotification = functions.database
  .ref("/deals/{userId}/{dealId}")
  .onCreate((data, context) => {
    const dataValue = data.val();

    const topic = context.params.userId;

    const payload = {
      data: {
        title: "New deal created",
        body: dataValue.user.name + " added a new deal."
      },
      topic: topic
    };

    // Send a message to devices subscribed to the provided topic.
    return admin
      .messaging()
      .send(payload)
      .then(response => {
        // Response is a message ID string.
        console.log("Successfully sent message:", response);
      })
      .catch(error => {
        console.log("Error sending message:", error);
      });
  });

我还在 onMessageReceived() 上设置了一个调试点,但没有启动。

【问题讨论】:

  • 客户端应用是否订阅了发送消息的主题?
  • 是的。订阅主题的客户端应用程序。
  • 您可以直接联系 Firebase 支持以获取 FCM 故障排除方面的帮助。 support.google.com/firebase/contact/support
  • 如果您从 firebase 控制台发送推送通知,那么它将视为正常通知,因此您的 onMessageReceived() 永远不会调用。尝试使用带有有效负载的PostMan 发送推送通知
  • 我正在使用 Firebase 云功能发送推送通知。

标签: android firebase push-notification firebase-cloud-messaging


【解决方案1】:

我发现了问题所在。问题是在做了一些更改并构建了我们需要再次订阅主题的 android 项目之后。

【讨论】:

    【解决方案2】:

    当您的应用处于后台时,firebase 不会触发 OnMessageReceived 相反,它将显示通知警报

    +

    确保您订阅了正确的主题

    +

    确保在您的设备上更新播放服务。

    【讨论】:

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