Firebase Analytics not logging events in MAUI .net9 for both iOS and Android ?

Question

Hi, Firebase dashboard is not registering any logs for my MAUI app. I am using Xamarin.firebase.Analytics for Android and AdamE.Firebase.iOS.Analytics for iOS.

.csproj

<ItemGroup Condition="'$(TargetFramework)' == 'net9.0-ios'">
 	<BundleResource Include="GoogleService-Info.plist" />
	<PackageReference Include="AdamE.Firebase.iOS.Analytics" Version="10.29.0" />
	<PackageReference Include="AdamE.Firebase.iOS.Crashlytics" Version="10.29.0" />
</ItemGroup>

<ItemGroup Condition="'$(TargetFramework)' == 'net9.0-android'">
	<GoogleServicesJson Include="Google-services.json" />
	<PackageReference Include="Xamarin.Firebase.Analytics" Version="122.1.2" />
	<PackageReference Include="Xamarin.Firebase.Crashlytics" Version="119.2.1" />
</ItemGroup>

MAUIProgram.cs

private static MauiAppBuilder RegisterFirebase(this MauiAppBuilder builder) 
{	
	builder.ConfigureLifecycleEvents(events => 	{
#if IOS		
		events.AddiOS(iOS => iOS.FinishedLaunching((app, launchOptions) => 		{							Firebase.Core.App.Configure();			Firebase.Crashlytics.Crashlytics.SharedInstance.Init(); Firebase.Crashlytics.Crashlytics.SharedInstance.SetCrashlyticsCollectionEnabled(true);			Firebase.Crashlytics.Crashlytics.SharedInstance.SendUnsentReports();			
return false; 		
		}));
#else		
		events.AddAndroid(android => android.OnCreate((activity, bundle) => 		{			Firebase.FirebaseApp.InitializeApp(activity);Firebase.Crashlytics.FirebaseCrashlytics.Instance.SetCrashlyticsCollectionEnabled(Java.Lang.Boolean.True);				Firebase.Crashlytics.FirebaseCrashlytics.Instance.SendUnsentReports(); 		
		}));
#endif 	
	});	

return builder; 
}

AnalyticsService.cs

using System;
using Microsoft.Maui.Controls.Compatibility;
using Firebase.Analytics;

#if IOS
using Foundation;
#else
using Android.Content;
using Android.OS;
#endif

namespace Analytics09;

public interface IFirebaseAnalyticsService
{
    void Log(string value, string eventName = "screen_view", string paramName = "screen_name");
    void Log(string eventName, IDictionary<string, string> parameters);
}


public class FirebaseAnalyticsService : IFirebaseAnalyticsService
{

    public void Log(string value, string eventName = "screen_view", string paramName = "screen_name")
    {
        Log(eventName, new Dictionary<string, string>
            {
                { paramName, value.Replace("ViewModel", "", StringComparison.InvariantCulture) }
            });
    }

    public void Log(string eventName, IDictionary<string, string> parameters)
    {

#if IOS
        if (parameters == null)
        {
            Analytics.LogEvent(eventName, (Dictionary<object, object>)null);
            return;
        }

        var keys = new List<NSString>();
        var values = new List<NSString>();
        foreach (var item in parameters)
        {
            keys.Add(new NSString(item.Key));
            values.Add(new NSString(item.Value));
        }

        var parametersDictionary =
            NSDictionary<NSString, NSObject>.FromObjectsAndKeys(values.ToArray(), keys.ToArray(), keys.Count);
        Analytics.LogEvent(eventName, parametersDictionary);
#else
        var firebaseAnalytics = FirebaseAnalytics.GetInstance(Platform.CurrentActivity);

        if (parameters == null)
        {
            firebaseAnalytics.LogEvent(eventName, null);
            return;
        }

        var bundle = new Bundle();
        foreach (var param in parameters)
        {
            bundle.PutString(param.Key, param.Value);
        }

        firebaseAnalytics.LogEvent(eventName, bundle);
#endif
    }
}

MainPage.xaml.cs

private void OnEventButtonClicked(object sender, EventArgs e)
{	
#if IOS	
	_firebaseAnalyticsService.Log("iOS_CounterButtonTapped");
#elif ANDROID	
	_firebaseAnalyticsService.Log("Android_CounterButtonTapped");
#endif 
}

GoogleService-info.plist

<key>FIREBASE_ANALYTICS_COLLECTION_ENABLED</key>
	<true></true>

Answer 1

Hello,

I noticed that you are currently using the .net 9.0 framework. Currently, the latest versions of these two NugetPackages do not yet support .net 9.0, so this should be a compatibility issue.

Regarding how to integrate FireBase Analytics into Maui project, you can refer to the solution in this thread.

• How to integrate Firebase Analytics in .NET MAUI.

Best Regards,

Alec Liu.

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