Subscribing/Unsubscribing to topics doesn't work on Android

[AOEGame]

[READ] For Firebase Unity SDK issues, please report to Firebase Unity open-source

Once you've read this section and determined that your issue is appropriate for this repository, please delete this section.

[REQUIRED] Please fill in the following fields:

• Unity editor version: _2020.3.17f
• Firebase Unity SDK version: 9.1.0
• Source you installed the SDK: __unitypackage
• Problematic Firebase Component: Messaging
• Other Firebase Components in use: Analytics
• Additional SDKs you are using: Analytics，Crashlytics
• Platform you are using the Unity editor on: Windows
• Platform you are targeting:Android
• Scripting Runtime: IL2CPP

[REQUIRED] Please describe the issue here:

        Firebase.Messaging.FirebaseMessaging.UnsubscribeAsync(topic).ContinueWith(task =>
        {
            Debug.Log("FirebaseMessaging.UnsubscribeAsync:" + topic + " status:" + task.Status);
           
        });

I can not get the debug.log.
also test: awit Firebase.Messaging.FirebaseMessaging.UnsubscribeAsync

android version: 9

Relevant Code:

Firebase.FirebaseApp.LogLevel = Firebase.LogLevel.Verbose;
Firebase.Messaging.FirebaseMessaging.TokenRegistrationOnInitEnabled = true;
Firebase.Analytics.FirebaseAnalytics.SetAnalyticsCollectionEnabled(true);

            Firebase.Messaging.FirebaseMessaging.TokenReceived += OnTokenReceived;
            Firebase.Messaging.FirebaseMessaging.MessageReceived += OnMessageReceived;
            string topic = "Lan_en";

        Firebase.Messaging.FirebaseMessaging.UnsubscribeAsync(topic).ContinueWith(task =>
        {
            Debug.Log("FirebaseMessaging.UnsubscribeAsync:" + topic + " status:" + task.Status);
           
        });

[AOEGame]

anyone?

[paulinon]

Hi @AOEGame,

Thanks for reporting this issue. While I try to replicate this, could you verify if the behavior persists using version 9.2.0 of the SDK? Are you getting any error messages after performing this operation?

[AOEGame]

Hi @AOEGame,

Thanks for reporting this issue. While I try to replicate this, could you verify if the behavior persists using version 9.2.0 of the SDK? Are you getting any error messages after performing this operation?

After a lot of testing, I found out that the first launch then subscribe topic is successful. After restart our game then subscribe topic, the subscribeAsync task can not finish.

no error message.

the subscribeAsync task does not have any completion information.

Had set LogLevel:
Firebase.FirebaseApp.LogLevel = Firebase.LogLevel.Debug;

but no error message in android studio logcat!

[AOEGame]

Hi @AOEGame,

Thanks for reporting this issue. While I try to replicate this, could you verify if the behavior persists using version 9.2.0 of the SDK? Are you getting any error messages after performing this operation?

9.2.0 has the same problem.

first launch then subscribe topic is successful. kill app then restart, subscribeAsync task can not finish.

[AOEGame]

same problem like this:
https://stackoverflow.com/questions/68642761/unity-firebase-subscribe-unsubscribe-from-topic-issue-on-reloading-app

[AOEGame]

please help me!

[AOEGame]

@paulinon any update?

[paulinon]

Hi @AOEGame,

I was able to replicate this behavior on my end, and it appears to be related to this bug where OnTokenReceived is called only on fresh app installs. The team is still working on the fix, and while you can refer to the aformentioned thread for updates, you may delete the token and get a new one as a workaround.