Prism.Avalonia

Prism.Avalonia provides your Avalonia apps with Prism framework support so you can Navigate, create Dialog Windows and Notifications, provide Dependency Injection and internal Messaging easier than before! You will need both packages installed to get started.

Announcement!

• Prism.Avalonia v9.0.401-pre just arrived!
• Prism.Avalonia v9.0.271-pre just arrived!
• Follow the Upgrading to Prism v9.0.x-pre guide for breaking changes

For more samples outside of this repo, check out:

• Avalonia Outlookish
• Learn PrismLibrary
• If you have samples, let us know and we'll feature them!

With Prism.Avalonia's logic and development approach being similar to that of Prism for WPF, so you can get started right away! Keep in mind, they are similar and not 1-to-1. Check out our Wiki and Avalonia Outlookish app for tips and tricks.

Package Releases

Just like Prism.WPF or Prism.Maui, your project must reference both the Prism.Avalonia (Core) and Prism.DryIoc.Avalonia (IoC container) packages to work.

Package	Stable	Preview
Prism.Avalonia
Prism.DryIoc.Avalonia

Version Notice

Choose the NuGet package version that matches your Avalonia version.

Our versioning schema is based on the SemVer using the format MAJOR.MINOR.PATCH.REVISION. The REVISION segment indicates the Avalonia version support. For instance v8.1.97.11000 of this library supports, Prism v8.1.97 and Avalonia v11.0.x.

Be sure to check out the ChangeLog.md and guides when upgrading your NuGet packages:

• Upgrading to Prism v9.0.x-pre
• Upgrading to Avalonia-11
• Also, the official Avalonia Upgrading from v0.10.

Contributing

Prism.Avalonia is an open-source project under the MIT license. We encourage community members like yourself to contribute.

You can contribute today by creating a feature request, issue, or discussion on the forum. From there we can have a brief discussion as to where this fits into the backlog priority. If this is something that fits within the Prism architecture, we'll kindly ask you to create a Pull Request. Any PR made without first having an issue/discussion may be closed.

Issues posted without a description may be closed immediately. Use the discussion boards if you have a question, not Issues.

Install

Add the Prism.Avalonia and its DryIoc packages to your project:

# Avalonia v11
Install-Package Prism.Avalonia -Version 8.1.97.11073
Install-Package Prism.DryIoc.Avalonia -Version 8.1.97.11073

# Avalonia v0.10.1021
Install-Package Prism.Avalonia -Version 8.1.97.1021
Install-Package Prism.DryIoc.Avalonia -Version 8.1.97.1021

How to use

App.xaml.cs

public class App : PrismApplication
{
    public static bool IsSingleViewLifetime =>
        Environment.GetCommandLineArgs()
            .Any(a => a == "--fbdev" || a == "--drm");

    public static AppBuilder BuildAvaloniaApp() =>
        AppBuilder
            .Configure<App>()
            .UsePlatformDetect();

    public override void Initialize()
    {
        AvaloniaXamlLoader.Load(this);
        base.Initialize();              // <-- Required
    }

    protected override void RegisterTypes(IContainerRegistry containerRegistry)
    {
        // Register Services
        containerRegistry.Register<IRestService, RestService>();

        // Views - Generic
        containerRegistry.Register<MainWindow>();

        // Views - Region Navigation
        containerRegistry.RegisterForNavigation<DashboardView, DashboardViewModel>();
        containerRegistry.RegisterForNavigation<SettingsView, SettingsViewModel>();
        containerRegistry.RegisterForNavigation<SidebarView, SidebarViewModel>();
    }

    protected override AvaloniaObject CreateShell()
    {
        if (IsSingleViewLifetime)
            return Container.Resolve<MainControl>(); // For Linux Framebuffer or DRM
        else
            return Container.Resolve<MainWindow>();
    }

    protected override void ConfigureModuleCatalog(IModuleCatalog moduleCatalog)
    {
        // Register modules
        moduleCatalog.AddModule<Module1.Module>();
        moduleCatalog.AddModule<Module2.Module>();
        moduleCatalog.AddModule<Module3.Module>();
    }

    /// <summary>Called after <seealso cref="Initialize"/>.</summary>
    protected override void OnInitialized()
    {
      // Register initial Views to Region.
      var regionManager = Container.Resolve<IRegionManager>();
      regionManager.RegisterViewWithRegion(RegionNames.ContentRegion, typeof(DashboardView));
      regionManager.RegisterViewWithRegion(RegionNames.SidebarRegion, typeof(SidebarView));
    }
}

Program.cs

Your default Avalonia Program.cs file does not need to be modified. Below is provided as a sample.

public static class Program
{
    public static AppBuilder BuildAvaloniaApp() =>
        AppBuilder.Configure<App>()
            .UsePlatformDetect()
            .With(new X11PlatformOptions
            {
                EnableMultiTouch = true,
                UseDBusMenu = true
            })
            .With(new Win32PlatformOptions())
            .UseSkia()
            .UseReactiveUI()
            .UseManagedSystemDialogs();

    static int Main(string[] args)
    {
        double GetScaling()
        {
            var idx = Array.IndexOf(args, "--scaling");
            if (idx != 0 && args.Length > idx + 1 &&
                double.TryParse(args[idx + 1], NumberStyles.Any, CultureInfo.InvariantCulture, out var scaling))
                return scaling;
            return 1;
        }

        var builder = BuildAvaloniaApp();
        InitializeLogging();
        if (args.Contains("--fbdev"))
        {
            SilenceConsole();
            return builder.StartLinuxFbDev(args, scaling: GetScaling());
        }
        else if (args.Contains("--drm"))
        {
            SilenceConsole();
            return builder.StartLinuxDrm(args, scaling: GetScaling());
        }
        else
            return builder.StartWithClassicDesktopLifetime(args);
    }

    static void SilenceConsole()
    {
        new Thread(() =>
        {
            Console.CursorVisible = false;
            while (true)
                Console.ReadKey(true);
        })
        { IsBackground = true }.Start();
    }
}

Branching Strategy

Below is a basic branching hierarchy and strategy.

Sponsored by: Suess Labs a subsidary of Xeno Innovations, Inc.