[question]: How to use NotificationWillDisplayEvent

[serolgames]

How can we help?

Hello,

in older version we listened to incoming notification with
OneSignal.setNotificationWillShowInForegroundHandler

which is still in use in the official documentation...

But I found that we should use event listener NotificationWillDisplayEvent.

How to use it and read notification data ?

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[jennantilla]

Hello @serolgames thanks for reaching out! The updated method is adding an event listener for foregroundWillDisplay.

Let us know if you have any additional questions or concerns.

Thanks!

[serolgames]

Hello,

Thanks you !
It's working but I found another issue :(

I'm using the following code :

const onReceived = (event: any) => 
{                    
    event.preventDefault()
    const additionalData = event.getNotification().additionalData

    if(/*my logic to display only if I want*/)
    {
        event.getNotification().display();
    }
}

useEffect(() =>
{
    OneSignal.Notifications.addEventListener('foregroundWillDisplay', onReceived);

    return () => {
        console.log("removing event...")
        OneSignal.Notifications.removeEventListener('foregroundWillDisplay', onReceived);
    };
}, []);

So basically, it's working. BUT, the event seems to never be removed, I get the log "removing event..." so removeEventListener is properly called but it's never getting removed. Is it a known issue ? Or a problem in my code ?

[mathbalduino]

It's still happening