[Local Notifications][Firebase] Opening app from notification does not show data on iOS devices

[guntarspolis]

Please fill in the following fields:

Unity editor version: 2019.2.17f1
Firebase Unity SDK version: 6.7.0
Source you installed the SDK (.unitypackage or Unity Package Manager): .unitypackage
Firebase plugins in use (Auth, Database, etc.): Messaging
Additional SDKs you are using (Facebook, AdMob, etc.): Facebook , Mobile Notifications(Package manager), Play Games
Platform you are using the Unity editor on (Mac, Windows, or Linux): Mac/Windows
Platform you are targeting (iOS, Android, and/or desktop): iOS/Android
Scripting Runtime (Mono, and/or IL2CPP):IL2CPP

Please describe the issue here:

Unity local notification plugin does not work in some cases when firebase plugin is added.

Test case 1:

1. Install Mobile Notifications
2. Run some notifications
3. Close app
4. Open app from notification
   5.1) receive callback about opening app from notification on Android [WORKS]
   5.2) receive callback about opening app from notification on iOS [WORKS]

---

Test case 2:

1. Install Mobile Notifications
2. Install Firebase
3. Run some notifications
4. Close app
5. Open app from notification

6.1) receive callback about opening app from notification on Android [WORKS]
6.2) receive callback about opening app from notification on iOS [DOES NOT WORK]

(Mobile Notifications)Android :
iOSNotificationCenter.GetLastRespondedNotification();

(Mobile Notifications)iOS :
AndroidNotificationCenter.GetLastNotificationIntent();

Please answer the following, if applicable:

Have you been able to reproduce this issue with just the Firebase Unity quickstarts (this GitHub project)?

plugins works great without each other

What's the issue repro rate? (eg 100%, 1/5 etc)

100%

[google-oss-bot]

This issue does not seem to follow the issue template. Make sure you provide all the required information.

[chkuang-g]

Hi @guntarspolis

I do not think Analytics would do anything to notification at all.
Could you offer a bit more detail?

• Does this happen when you use Firebase quickstart, ex. Analytics quickstart. It will be very helpful if you can modify this project and provide the reproduction steps.
• I'm curious if the issue occurs even if you did not call any Firebase API.
• Could you provide some log when the issue occurs, from Unity editor and from Xcode? You could cross exam the log between your Test case 1 and Test case 2

Thank you

[guntarspolis]

Thank you for your response @chkuang-g . Yes, it was not Analytics , i spelled it wrong, its about Messaging. I'm sorry about that.

I'll go and reproduce all the three steps you mentioned.

Thank you.

[guntarspolis]

• It does happen with Messaging quickstart.

Not working version:

1. opened quickstart
2. added Firebase messaging package
3. add Mobile Notifications trough package manager
4. added script to handle notification trigger and reading it from button click.

Working version:

1. opened quickstart
2. added Firebase messaging package
3. add Mobile Notifications trough package manager
4. added script to handle notification trigger and reading it from button click.
5. remove all libs related to messaging

both versions here:
https://drive.google.com/drive/folders/1r5GWFkTXK8r4RkP5iSdmMOD4aeOUSQca?usp=sharing

repro steps :

1. build xcode project
2. run game
3. kill app
4. run app trough notification that appears in 5 seconds
5. click GetLastNotification button
6. data shows up on screen (in working case, else it shows 'nothing!')

• You don't have to call anything

• There is no errors, it just ignores that I did open app from notification.

@chkuang-g

[patm1987]

This is being tracked as a bug internally. Definitely update this if you get any more information you'd like to share!

[vishakh-av]

I am also facing the same issue with Mobile Notifications package of Unity when tried along with Firebase as mentioned above. When tried with the inbuilt local-notification services of Unity(https://docs.unity3d.com/ScriptReference/iOS.NotificationServices.html) instead of mobile-notifications-package along with Firebase, the same issue is there. In both the cases, I did not initialise Firebase though. This has become a headache and I hope this issue with Firebase is fixed soon!