iOSNotificationCenter.GetLastRespondedNotification() does not work when cold start

[kkfrank2]

In iOS, after kill app, and click the notification to launch app, iOSNotificationCenter.GetLastRespondedNotification() return null.
I test package 1.4.2 to 2.2.2, no one works

[aurimasc]

Are you checking for notification on the first frame?
iOS does not deliver notifications right away, there is a couple frame delay.

[kkfrank2]

Are you checking for notification on the first frame? iOS does not deliver notifications right away, there is a couple frame delay.

Thanks for your reply. I sleep 1 second in awake event and not work .
I have no idea, and only have to dwongrade to 1.4.2, and follow this fix,

Just add this code to fix this probelm. A little hack.

UNUserNotificationCenter* center = [UNUserNotificationCenter currentNotificationCenter];
center.delegate = [UnityNotificationManager sharedInstance];

By the way, 1.4.2 have other problem(for example, cannot install in android 13 above, so I have to fix this too.. If I can use 2.2.2，that would be perfect)

[aurimasc]

Thanks for your reply. I sleep 1 second in awake event and not work .

You mean Thread.Sleep()?
That doesn't solve the problem, it simply stalls the app, but the notification arrival happens on the same thread.
The proper way can be seen here:

com.unity.mobile.notifications/TestProjects/Main/Assets/Scripts/iOSTest.cs

Line 98 in 3dc4c3a

iOSNotification notification = iOSNotificationCenter.GetLastRespondedNotification();

[SabeelMindstorm]

(Mobile notification package version 2.1.1 and unity version 2021.3.18f1). I followed the solution but still it returning null furthermore I checked https://assetstore.unity.com/packages/tools/integration/mobile-notifications-2-0-264705 this plugin as well to validate my implementation but still it give null.
Is there any permission need to set or should it work for some other unity version?
@aurimasc

[kkfrank2]

com.unity.mobile.notifications/TestProjects/Main/Assets/Scripts/iOSTest.cs

Thank you. I used yield return new WaitForSeconds(1f); and not work. But I will use 2.2.2 to test again, to make sure if it's my problem.

Just finished the test. This time I used yield return null; yield return null; StartCoroutine in awake event. Not work too.

[aurimasc]

Are you using any plugins that do something with notifications? Can you reproduce it in new project?

[kkfrank2]

Are you using any plugins that do something with notifications? Can you reproduce it in new project?

Yes, I also used firebase push for android(At first, I used firebase for both android and ios. But in china, you cannot access google network, so in ios I switch to apns..). I will try to reproduce it in new project, it may take some times.

[kkfrank2]

I create a new project and it worked. I will double check why my project not work..

[smarty-concrete]

There is a bug in the Firebase Messaging SDK that causes this issue to occur. I've submitted a pull request here in the firebase-cpp-sdk repo which will hopefully address this issue.