foregroundWillDisplay or click listener not working IOS 26.2

[YasirNaeem25]

I’m facing an issue with OneSignal notifications on iOS.

Current behavior

Push notification is received correctly.

When I tap the notification, the app opens.

However, the OneSignal notification click listener does not fire, so navigation based on notification data never happens.

This issue is reproducible on latest iOS versions (26.2).

Previously working fine when i am on the IOS 18.6

useEffect(() => {
OneSignal.initialize('APP_ID');

OneSignal.Notifications.addEventListener(
'foregroundWillDisplay',
(event) => {
const data = event.getNotification()?.additionalData;
// Custom in-app handling works fine here
event.getNotification().display();
}
);

OneSignal.Notifications.addEventListener('click', (event) => {
console.log('Notification clicked', event);
const data = event?.notification?.additionalData;

// Navigation based on notification type
// (navigation does NOT execute because listener is not firing)

});

return () => {
OneSignal.Notifications.removeEventListener('foregroundWillDisplay');
OneSignal.Notifications.removeEventListener('click');
};
}, []);

[fadi-george]

Hello @YasirNaeem25 ,
Is this for a simulator a physical device?

[YasirNaeem25]

@fadi-george i test on both physical and simulator

[fadi-george]

@YasirNaeem25 It should on a physical device if I accept push prompt on it.

But unfortunately all the v26.0 and v26.1 simulators seem to be broken for push notifications. Though v18 simulators still work.
I've tested the foreground & click listeners and they're both working.

[fadi-george]

Actually I tested the latest v26.2 and it seems to be working for that version.

[YasirNaeem25]

Basically i receive a notification but these listener is not trigger after open the app

foregroundWillDisplay or click listener

[fadi-george]

You should setup the callbacks like so:

 useEffect(() => {
    OneSignal.initialize(APP_ID);
    OneSignal.Debug.setLogLevel(LogLevel.Verbose);

    const onNotificationClick = (event: NotificationClickEvent) => {
      OSLog('OneSignal: notification clicked:', event);
    };
    const onNotificationWillDisplay = (event: NotificationWillDisplayEvent) => {
      OSLog('OneSignal: notification will show in foreground:', event.getNotification().title);
    };
    OneSignal.Notifications.addEventListener('click', onNotificationClick);
    OneSignal.Notifications.addEventListener('foregroundWillDisplay', onNotificationWillDisplay);
    return () => {
      OneSignal.Notifications.removeEventListener('click', onNotificationClick);
      OneSignal.Notifications.removeEventListener('foregroundWillDisplay', onNotificationWillDisplay);
    };
  }, []);

[fadi-george]

or

const onNotificationClick = useCallback((event: NotificationClickEvent) => {
    console.log('OneSignal: notification clicked:', event);
  }, []);

const onNotificationWillDisplay = useCallback(
  (event: NotificationWillDisplayEvent) => {
    console.log(
      'OneSignal: notification will show in foreground:',
      event.getNotification().title,
    );
    event.notification.display();
  },
  [],
);

useEffect(() => {
  OneSignal.initialize(APP_ID);
  OneSignal.Debug.setLogLevel(LogLevel.Verbose);

  OneSignal.Notifications.addEventListener('click', onNotificationClick);
  OneSignal.Notifications.addEventListener(
    'foregroundWillDisplay',
    onNotificationWillDisplay,
  );
  return () => {
    OneSignal.Notifications.removeEventListener('click', onNotificationClick);
    OneSignal.Notifications.removeEventListener(
      'foregroundWillDisplay',
      onNotificationWillDisplay,
    );
  };
}, [onNotificationClick, onNotificationWillDisplay]);