[Bug]: Push Notifications Not Opening App When Closed

[bahadirkalay]

Description:
I am experiencing an issue with push notifications in my Flutter application. When the app is closed, tapping on a push notification does not open the app or navigate to the specified page. Here are the details:
Platform:Andoid, IOS
Flutter Version: 3.19.0
OneSignal SDK Version: 5.1.2
Expected Behavior: When a push notification is tapped, the app should open and navigate to the specified route or page.
Actual Behavior: Tapping on a push notification does not open the app when it is closed.

 void _handleNotificationClick(OSNotificationClickEvent event) async {
    String? deepLink = event.notification.launchUrl;
    String? route = event.notification.additionalData?['route'];
    if (deepLink != null && deepLink.isNotEmpty) {
      Uri url = Uri.parse(deepLink);
      if (await canLaunchUrl(url)) {
        await launchUrl(url, mode: LaunchMode.externalApplication);
      }
    } else if (route != null && route.isNotEmpty) {
      if (navigatorKey.currentState != null) {
        navigatorKey.currentState?.pushNamed(route);
      }
    }
  }

Steps to reproduce?

1:Close the app completely.
2:Send a push notification with a deep link or route.
3:Tap on the notification.
4:Observe that the app does not open or navigate to the intended page.

What did you expect to happen?

I expected the app to open and navigate to the specified page when I tap on a push notification, even if the app is closed.

OneSignal Flutter SDK version

5.1.2

Which platform(s) are affected?

• iOS
• Android

Relevant log output

Code of Conduct

• I agree to follow this project's Code of Conduct

[nan-li]

Hi @bahadirkalay, is this an issue with the push notification and OneSignal SDK, or is this an issue with your custom navigation?

If you don't use this _handleNotificationClick method, and click on a notification with or without a launch URL, does your app open?

[bahadirkalay]

Hi @bahadirkalay, is this an issue with the push notification and OneSignal SDK, or is this an issue with your custom navigation?

If you don't use this _handleNotificationClick method, and click on a notification with or without a launch URL, does your app open?

Hi @nan-li,

Thank you for your response!

I tested the behavior without using the _handleNotificationClick method, and unfortunately, the app still does not open when the push notification is tapped while the app is closed. This issue occurs on both iOS and Android platforms.

It seems like the app is not being launched at all when tapping the notification, regardless of whether a launch URL is present. When the app is in the background or foreground, the notifications work as expected, but this issue specifically happens when the app is fully closed.

I have followed the setup documentation for OneSignal and ensured that all required permissions and configurations are in place. Do you have any suggestions on how to debug or resolve this issue?

Thank you in advance for your help!