[C][Uno Platform] Create desktop applications on Ubuntu 2

using Windows.UI.Xaml.Controls;using UnoSample.ViewModels;namespace UnoSample{    public sealed partial class MainPage : Page    {        public MainPage()        {            this.Loaded += (sender, e) => Console.WriteLine("Loaddeded");            this.InitializeComponent();            this.DataContext = new MainPageViewModel();        }    }}

using GLib;using Uno.UI.Runtime.Skia;using UnoSample.Skia.Gtk.MotionControllers;namespace UnoSample.Skia.Gtk{    class Program    {        static void Main(string[] args)        {            // I also can use "using statement"            using(var motionController = new MotionController())            {                ExceptionManager.UnhandledException += delegate (UnhandledExceptionArgs expArgs)                {                    expArgs.ExitApplication = true;                };                var host = new GtkHost(() => new App(), args);                host.Run();                // execute closing operations.            }        }    }}

...namespace UnoSample{    public sealed partial class App : Application    {        private Window _window;        public void Greet(string message)        {            Console.WriteLine($"SharedApp {message}");        }...

...    class Program    {        static void Main(string[] args)        {            using(var motionController = new MotionController())            {...                var host = new GtkHost(() => new App(), args);                host.Run();                // Because I can't get instances by "App.Current" before executing "host.Run()",                // I can only execute closing operations from Program.cs.                 ((App)App.Current).Greet("Call from Gtk");            }        }    }}

using GLib;using Microsoft.Extensions.DependencyInjection;using Uno.UI.Runtime.Skia;using UnoSample.ViewModels;namespace UnoSample.Skia.Gtk{    class Program    {        static void Main(string[] args)        {            var servicesProvider = BuildDi(args);            using (servicesProvider as IDisposable)            {...                var host = new GtkHost(() => new App(servicesProvider), args);                host.Run();            }        }        private static IServiceProvider BuildDi(string[] args)        {            var services = new ServiceCollection();            services.AddScoped<MainPageViewModel>();            return services.BuildServiceProvider();        }    }}

...namespace UnoSample{    public sealed partial class App : Application    {        private Window? _window;        public IServiceProvider ServiceProvider { get; }        public App(IServiceProvider serviceProvider)        {            this.ServiceProvider = serviceProvider;            InitializeLogging();            this.InitializeComponent();...

using Windows.UI.Xaml.Controls;using UnoSample.ViewModels;namespace UnoSample{    public sealed partial class MainPage : Page    {        public MainPage()        {            this.InitializeComponent();            this.DataContext = ((App)App.Current).ServiceProvider.GetService(typeof(MainPageViewModel));        }    }}