Notifications show duplicates in background state

[baronha]

I saw this issue #690, #767 and I don't know how to completely solve the above problem when displaying notification from Firebase's setBackgroundMessageHandler. How is this resolved in version 7.0.0+ on notifee?
Before that I was still able to use firebase's onNotificationOpenedApp api and it worked fine.
https://rnfirebase.io/messaging/usage#background--quit-state-messages

My code:

messaging().setBackgroundMessageHandler(
  async (remoteMessage) => await onDisplayNotification(remoteMessage)
);
const onDisplayNotification = async (remoteMessage) => {
  const payload = remoteMessage?.notification;
  const title = payload?.title;
  if (!title) return;

  await notifee.createChannel({
    id: "default",
    name: "ELearning Channel",
    sound: "noti",
    vibration: true,
    importance: AndroidImportance.HIGH,
  });

  await notifee.displayNotification({
    title,
    body: payload?.body ?? "Có một thông báo mới",
    data: remoteMessage?.data,
    android: {
      channelId: "default",
      sound: "noti",
      // importance: AndroidImportance.HIGH,
      category: AndroidCategory.MESSAGE,
      visibility: AndroidVisibility.PUBLIC,
      smallIcon: "notification_icon",
      circularLargeIcon: true,
      largeIcon: 'notification_icon',

      pressAction: {
        launchActivity: "default",
        id: "default",
      },
    },
    ios: {
      // ...
    },
  });
};

Result

[ketanuengage]

@baronha Its happening for me as well but only in iOS. Did you find any solution?

[sbaiahmed1]

+1

[pavelustenko]

In my experience, there was a case where I sent a notification object along with data. So one notification was created by Android automatically, and the second was created by setBackgroundMessageHandler. So I switched to data-only notifications.