[Bug] Using Firebase Message in Unity onMessageReceived not called when app in background or Killed

[muhammadali514]

[REQUIRED] Please fill in the following fields:

• Unity editor version: 2020.2.7f1
• Firebase Unity SDK version: 7.2.0
• Source you installed the SDK: FirebaseMessaging.unitypackage (.unitypackage or Unity Package Manager)
• Problematic Firebase Component: FirebaseMessaging (Auth, Database, etc.)
• Other Firebase Components in use: _____ (Auth, Database, etc.)
• Additional SDKs you are using: _____ (Facebook, AdMob, etc.)
• Platform you are using the Unity editor on: Windows _____ (Mac, Windows, or Linux)
• Platform you are targeting: Android _____ (iOS, Android, and/or desktop)
• Scripting Runtime: IL2CPP(Mono, and/or IL2CPP)

[REQUIRED] Please describe the issue here:

Firebase onMessageReceived not called when app in background or killed in unity project using Unity "2020.2.7f1" Firebase message "sdk7.2.0"

Notifications are working and getting data while app is open if app is killed or paused no data shows up. Stuck in it from 4 days and more

Steps to reproduce:

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)

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:

public void Start() 
    {
      Firebase.Messaging.FirebaseMessaging.TokenReceived += OnTokenReceived;
      Firebase.Messaging.FirebaseMessaging.MessageReceived += OnMessageReceived;
    }
    public void OnTokenReceived(object sender, Firebase.Messaging.TokenReceivedEventArgs token) 
    {
        Firebase.Messaging.FirebaseMessaging.SubscribeAsync("/topics/com.alpha.romeo");
        
    }
    public void OnMessageReceived(object sender, Firebase.Messaging.MessageReceivedEventArgs e) 
    {
            string title = e.Message.Data["title"];
            string url = e.Message.Data["app_url"];
            string short_disc = e.Message.Data["short_desc"];
            string icon = e.Message.Data["icon"];
            string feature = e.Message.Data["feature"];

            //e.Message.Data.TryGetValue("title",out title);
            //e.Message.Data.TryGetValue("app_url",out url);
            //e.Message.Data.TryGetValue("short_desc",out short_disc);
            //e.Message.Data.TryGetValue("icon",out icon);
            //e.Message.Data.TryGetValue("feature",out feature);
            
            Debug.Log("Alii Valuess  "+title);
            Debug.Log("Alii Valuess  "+url);
            Debug.Log("Alii Valuess  "+short_disc);
            Debug.Log("Alii Valuess  "+icon);
            Debug.Log("Alii Values    "+feature);

            RateUs(title,url,short_disc,icon,feature);
             
    }

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" package="com.alpha.romeo" android:versionCode="1" android:versionName="1.0">
  <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE"/>
  <uses-permission android:name="android.permission.WAKE_LOCK"/>
    <application android:label="@string/app_name" android:icon="@drawable/app_icon">
    <!-- The MessagingUnityPlayerActivity is a class that extends
         UnityPlayerActivity to work around a known issue when receiving
         notification data payloads in the background. -->
    <activity android:name="com.google.firebase_workaround.MessagingUnityPlayerActivityWorkaround" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">
      <meta-data android:name="unityplayer.UnityActivity" android:value="true" />
      <intent-filter>
      <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
    </activity>
    <service android:name="com.google.firebase.messaging.MessageForwardingService" android:permission="android.permission.BIND_JOB_SERVICE" android:exported="false">
    <intent-filter>
        <category android:name="android.intent.category.LEANBACK_LAUNCHER"/>
        <category android:name="com.google.firebase.MESSAGING_EVENT" />
      </intent-filter></service>
  </application>
</manifest>

[paulinon]

Hi @Smajs5,

I see that you provided the relevant code and manifest file. In order to identify the cause of this issue, could you provide the complete steps you've taken before facing this behavior?

[muhammadali514]

hi @paulinon
I have implemented firebase cloud messaging for my custom notification but the default notifications are working but my custom notification is not working in the background basically Onmessagereceive is not called if app is in bg or killed. when i open my app notification pops up.

Made an empty Unity project
Imported FCM pluging 7.2.0 in my project
Imported my json file
Resolved packages and wrote handlers script
Build and it was working while app was on but not when app was in background

Note: I am using Postman to send custom notifications through firebase