Firebase/firebaseProject/firebaseMobile/MainPage.xaml.cs

using Plugin.Firebase.CloudMessaging;

namespace firebase;

public partial class MainPage : ContentPage
{
	int count = 0;

	public MainPage()
	{
		InitializeComponent();
	}

	private async void OnCounterClicked(object sender, EventArgs e)
	{
        await CrossFirebaseCloudMessaging.Current.CheckIfValidAsync();
        var token = await CrossFirebaseCloudMessaging.Current.GetTokenAsync();
        Console.WriteLine($"FCM token: {token}");
    }
}