MonoGame.Samples/BackgroundThreadTester/Platforms/Android/Program.cs

using Android.App;
using Android.Content.PM;
using Android.OS;
using Android.Views;
using Microsoft.Xna.Framework;

namespace BackgroundThreadTester
{
    [Activity(Label = "BackgroundThreadTester", MainLauncher = true, Icon = "@drawable/icon", Theme = "@style/Theme.Splash", AlwaysRetainTaskState = true, LaunchMode = LaunchMode.SingleInstance, ScreenOrientation = ScreenOrientation.FullUser, ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden | ConfigChanges.ScreenSize | ConfigChanges.ScreenLayout)]
    public class Activity1 : AndroidGameActivity
    {
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            var g = new Game1();
            SetContentView((View)g.Services.GetService(typeof(View)));
            g.Run();
        }
    }
}