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Example of how to implement Biometric Authentication in Xamarin.Forms applications - http://julianocustodio.com/autenticacao-biometrica
using Android.App;
using Android.Content.PM;
using Android.Runtime;
using Android.OS;
using Plugin.Fingerprint;
using Plugin.CurrentActivity;
namespace BiometricDemo.Droid
{
[Activity(Label = "BiometricDemo", Icon = "@mipmap/icon", Theme = "@style/MainTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]
public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
{
protected override void OnCreate(Bundle savedInstanceState)
{
TabLayoutResource = Resource.Layout.Tabbar;
ToolbarResource = Resource.Layout.Toolbar;
base.OnCreate(savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
CrossFingerprint.SetCurrentActivityResolver(() => CrossCurrentActivity.Current.Activity);
CrossCurrentActivity.Current.Init(this, savedInstanceState);
LoadApplication(new App());
}
public override void OnRequestPermissionsResult(int requestCode, string[] permissions, [GeneratedEnum] Android.Content.PM.Permission[] grantResults)
{
Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);
base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
}
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