Unable to receive images in iOS notifications.

[adityathoutam]

[REQUIRED] Please fill in the following fields:

• Unity editor version: 2020.2.0f1
• Firebase Unity SDK version: 7.0.2
• Source you installed the SDK: UPM (.unitypackage or Unity Package Manager)
• Problematic Firebase Component: FCM (Auth, Database, etc.)
• Other Firebase Components in use: Auth,Database,Storage,RemoteConfig, FCM etc (Auth, Database, etc.)
• Additional SDKs you are using: AppsFlyer (Facebook, AdMob, etc.)
• Platform you are using the Unity editor on: Mac (Mac, Windows, or Linux)
• Platform you are targeting: iOS (iOS, Android, and/or desktop)
• Scripting Runtime: IL2CPP (Mono, and/or IL2CPP)

[REQUIRED] Please describe the issue here:

Unable to receive image notifications (rich) via console, sent to the Unity App

(Please list the full steps to reproduce the issue. Include device logs, Unity logs, and stack traces if available.)

Steps to reproduce:

1. Build for iOS
2. Deploy to Xcode and build
3. Use generated token to send notifications via console
4. Send text + https image /image stored in bucket.
5. Image is ignored, only text is received
   Have you been able to reproduce this issue with just the Firebase Unity quickstarts (this GitHub project)?
   What's the issue repro rate? (eg 100%, 1/5 etc)
   100%
   What happened? How can we make the problem occur?
   This could be a description, log/console output, etc.

If you have a downloadable sample project that reproduces the bug you're reporting, you will
likely receive a faster response on your issue.

Relevant Code:

// TODO(you): code here to reproduce the problem

[chkuang-g]

Hi @adityathoutam

Thank you for reporting the issue. Yes, I can reproduce the issue with quickstart on iOS as well.

Based on the Firebase iOS SDK doc, seems like there are several extra steps in Xcode to make it works, ex. Notification Service Extension.

The Xcode project generated from Unity is slightly complicated since it has two different targets, UnityFramework and Unity-iPhone. I am not sure if those steps from iOS SDK doc is valid. Will need to consult with our iOS team.

[charlotteliang]

@adityathoutam As @chkuang-g mentioned, setup Notification service extension is a required step and you need to call the Messaging ExtensionHelper API inside the extension.
Here's a tutorial you can check out: https://firebase.google.com/docs/cloud-messaging/ios/send-image
Let us know if you already done that and it still doesn't work for you.

[adityathoutam]

@chliangGoogle As @chkuang-g mentioned, Unity creates two different targets UnityFramework and Unity-iPhone.
There are no instructions on what to do in this case. I have added the Notification service extension but I think it is not aware of the Firebase Messaging inside Unity. I have tried adding Firebase as pods dependencies, but Xcode is showing me 99+ errors. Here is the pod file
`source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '11.0'

def shared_pods
pod 'AppsFlyerFramework', '6.0.7'
pod 'Firebase/Analytics', '7.0.0'
pod 'Firebase/Auth', '7.0.0'
pod 'Firebase/Core', '7.0.0'
pod 'Firebase/Crashlytics', '7.0.0'
pod 'Firebase/Database', '7.0.0'
pod 'Firebase/Functions', '7.0.0'
pod 'Firebase/Messaging', '7.0.0'
pod 'Firebase/RemoteConfig', '7.0.0'
pod 'Firebase/Storage', '7.0.0'
pod 'PurchasesHybridCommon', '1.4.5'
end

target 'UnityFramework' do
shared_pods
end

target 'Unity-iPhone' do
target 'NotificationImage' do
shared_pods
end
end`