bitwarden-android/src/Android/MainActivity.cs

using Android.App;
using Android.Content.PM;
using Android.Runtime;
using Android.OS;

namespace Bit.Droid
{
    [Activity(
        Label = "Bitwarden",
        MainLauncher = true,
        Icon = "@mipmap/ic_launcher",
        Theme = "@style/MainTheme",
        ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]
    [Register("com.x8bit.bitwarden.MainActivity")]
    public class MainActivity : 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);
            Xamarin.Forms.Forms.Init(this, savedInstanceState);
            LoadApplication(new App.App());
        }

        public override void OnRequestPermissionsResult(int requestCode, string[] permissions,
            [GeneratedEnum] Permission[] grantResults)
        {
            Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);
            base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }
}