Firebase White Circle Notification

Question

I have a problem with Firebase Notification. If I send a notification when the application is running on the screen, the notification displays correctly:

Then, if I send a notification when the application starts in the background, the notification will look like this:

This is my class FirebaseMessagingService

    public class AppFirebaseMessagingService extends FirebaseMessagingService {

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        sendNotification(remoteMessage);
    }

    private void sendNotification(RemoteMessage remoteMessage) {
        Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        int icon = Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ? R.drawable.ic_video_label_white_24dp: R.drawable.ic_launcher;
        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this);
        notificationBuilder.setWhen(System.currentTimeMillis());
        notificationBuilder.setColor(ContextCompat.getColor(this, R.color.colorPrimary));
        notificationBuilder.setSmallIcon(icon);
        notificationBuilder.setContentTitle(remoteMessage.getNotification().getTitle());
        notificationBuilder.setContentText(remoteMessage.getNotification().getBody());
        notificationBuilder.setAutoCancel(true);
        notificationBuilder.setSound(defaultSoundUri);
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            Intent resultIntent = new Intent(this, MainActivity.class);
            TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
            stackBuilder.addParentStack(MainActivity.class);
            stackBuilder.addNextIntent(resultIntent);
            PendingIntent pendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);
            notificationBuilder.setContentIntent(pendingIntent);
            notificationBuilder.setPriority(Notification.PRIORITY_HIGH);
        }

        NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(0, notificationBuilder.build());
    }
}

Why is this happening?

Answer 1

This is a bug in Firebase that is not yet resolved. Link here: fooobar.com/questions/79824 / ...

, Firebase , POST API, onMessageReceived(), .

, :

HTTP POST

https://fcm.googleapis.com/fcm/send
Content-Type:application/json
Authorization:key=AIzaSyZ-1u...0GBYzPu7Udno5aA

{ "data": {
    "score": "5x1",
    "time": "15:10"
  },
  "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1..."
}

(AIzaSyZ-1u... 0GBYzPu7Udno5aA), firebase: → → → →

Answer 2

, , - , Firebase, , :

• Foreground - , GCM - AppFirebaseMessagingService
• - / . node, ( , ).

, , :    1.    2. ( -    3. ( + , Firebase -    , )