MauiBiometrics2.cs

using Plugin.Fingerprint.Abstractions;

namespace MauiBiometrics;

public partial class MainPage : ContentPage
{
    private readonly IFingerprint fingerprint;

    public MainPage(IFingerprint fingerprint)
    {
        InitializeComponent();
        this.fingerprint = fingerprint;
    }

    private async void OnCounterClicked(object sender, EventArgs e)
    {
        var request = new AuthenticationRequestConfiguration("Prove you have fingers!", "Because without it you can't have access");
        var result = await fingerprint.AuthenticateAsync(request);
        if (result.Authenticated)
        {
            await DisplayAlert("Authenticated!", "Access granted", "Cool beans");
        }
        else
        {
            await DisplayAlert("Not authenticated!", "Access denied", "aww");
        }
    }
}