Added ReactiveUIDemo sample.

.ncrunch/ReactiveUIDemo.v3.ncrunchproject

@@ -0,0 +1,5 @@
+<ProjectConfiguration>
+  <Settings>
+    <IgnoreThisComponentCompletely>True</IgnoreThisComponentCompletely>
+  </Settings>
+</ProjectConfiguration>

Avalonia.Desktop.slnf

@@ -9,6 +9,7 @@
       "samples\\MiniMvvm\\MiniMvvm.csproj",
       "samples\\SampleControls\\ControlSamples.csproj",
       "samples\\Sandbox\\Sandbox.csproj",
+      "samples\\ReactiveUIDemo\\ReactiveUIDemo.csproj",
       "src\\Avalonia.Base\\Avalonia.Base.csproj",
       "src\\Avalonia.Build.Tasks\\Avalonia.Build.Tasks.csproj",
       "src\\Avalonia.Controls.ColorPicker\\Avalonia.Controls.ColorPicker.csproj",

Avalonia.sln

@@ -230,6 +230,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ControlCatalog.Browser", "s
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ControlCatalog.Browser.Blazor", "samples\ControlCatalog.Browser.Blazor\ControlCatalog.Browser.Blazor.csproj", "{90B08091-9BBD-4362-B712-E9F2CC62B218}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ReactiveUIDemo", "samples\ReactiveUIDemo\ReactiveUIDemo.csproj", "{75C47156-C5D8-44BC-A5A7-E8657C2248D6}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -541,6 +543,10 @@ Global
 		{90B08091-9BBD-4362-B712-E9F2CC62B218}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{90B08091-9BBD-4362-B712-E9F2CC62B218}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{90B08091-9BBD-4362-B712-E9F2CC62B218}.Release|Any CPU.Build.0 = Release|Any CPU
+		{75C47156-C5D8-44BC-A5A7-E8657C2248D6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{75C47156-C5D8-44BC-A5A7-E8657C2248D6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{75C47156-C5D8-44BC-A5A7-E8657C2248D6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{75C47156-C5D8-44BC-A5A7-E8657C2248D6}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -605,6 +611,7 @@ Global
 		{47F8530C-F19B-4B1A-B4D6-EB231522AE5D} = {86A3F706-DC3C-43C6-BE1B-B98F5BAAA268}
 		{15B93A4C-1B46-43F6-B534-7B25B6E99932} = {9B9E3891-2366-4253-A952-D08BCEB71098}
 		{90B08091-9BBD-4362-B712-E9F2CC62B218} = {9B9E3891-2366-4253-A952-D08BCEB71098}
+		{75C47156-C5D8-44BC-A5A7-E8657C2248D6} = {9B9E3891-2366-4253-A952-D08BCEB71098}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {87366D66-1391-4D90-8999-95A620AD786A}

samples/ReactiveUIDemo/App.axaml

@@ -0,0 +1,8 @@
+<Application
+    xmlns="https://github.com/avaloniaui" 
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    x:Class="ReactiveUIDemo.App">
+  <Application.Styles>
+    <FluentTheme />
+   </Application.Styles>
+</Application>

samples/ReactiveUIDemo/App.axaml.cs

@@ -0,0 +1,37 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+using Avalonia.ReactiveUI;
+using ReactiveUI;
+using ReactiveUIDemo.ViewModels;
+using ReactiveUIDemo.Views;
+using Splat;
+
+namespace ReactiveUIDemo
+{
+    public class App : Application
+    {
+        public override void Initialize()
+        {
+            AvaloniaXamlLoader.Load(this);
+            Locator.CurrentMutable.Register(() => new FooView(), typeof(IViewFor<FooViewModel>));
+            Locator.CurrentMutable.Register(() => new BarView(), typeof(IViewFor<BarViewModel>));
+        }
+
+        public override void OnFrameworkInitializationCompleted()
+        {
+            if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+                desktop.MainWindow = new MainWindow();
+            base.OnFrameworkInitializationCompleted();
+        }
+
+        public static int Main(string[] args)
+            => BuildAvaloniaApp().StartWithClassicDesktopLifetime(args);
+
+        public static AppBuilder BuildAvaloniaApp()
+          => AppBuilder.Configure<App>()
+                .UsePlatformDetect()
+                .UseReactiveUI()
+                .LogToTrace();
+    }
+}

samples/ReactiveUIDemo/MainWindow.axaml

@@ -0,0 +1,19 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
+        x:Class="ReactiveUIDemo.MainWindow"
+        xmlns:vm="using:ReactiveUIDemo.ViewModels"
+        xmlns:rxui="using:Avalonia.ReactiveUI"
+        Title="AvaloniaUI ReactiveUI Demo"
+        x:DataType="vm:MainWindowViewModel">
+  <TabControl TabStripPlacement="Left">
+    <TabItem Header="RoutedViewHost">
+      <DockPanel DataContext="{Binding RoutedViewHost}">
+        <StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal" Spacing="8">
+          <Button Command="{Binding ShowFoo}">Foo</Button>
+          <Button Command="{Binding ShowBar}">Bar</Button>
+        </StackPanel>
+        <rxui:RoutedViewHost Router="{Binding Router}"/>
+      </DockPanel>
+    </TabItem>
+  </TabControl>
+</Window>

samples/ReactiveUIDemo/MainWindow.axaml.cs

@@ -0,0 +1,22 @@
+using ReactiveUIDemo.ViewModels;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace ReactiveUIDemo
+{
+    public class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            this.InitializeComponent();
+            this.DataContext = new MainWindowViewModel();
+            this.AttachDevTools();
+        }
+
+        private void InitializeComponent()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+    }
+}

samples/ReactiveUIDemo/ReactiveUIDemo.csproj

@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+  
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\Avalonia.Diagnostics\Avalonia.Diagnostics.csproj" />
+    <ProjectReference Include="..\..\src\Avalonia.ReactiveUI\Avalonia.ReactiveUI.csproj" />
+    <ProjectReference Include="..\..\src\Avalonia.Themes.Fluent\Avalonia.Themes.Fluent.csproj" />
+  </ItemGroup>
+  
+  <ItemGroup>
+    <Compile Update="Views\BarView.axaml.cs">
+      <DependentUpon>BarView.axaml</DependentUpon>
+    </Compile>
+    <Compile Update="Views\FooView.axaml.cs">
+      <DependentUpon>FooView.axaml</DependentUpon>
+    </Compile>
+  </ItemGroup>
+
+  <Import Project="..\..\build\SampleApp.props" />
+  <Import Project="..\..\build\ReferenceCoreLibraries.props" />
+  <Import Project="..\..\build\BuildTargets.targets" />
+  <Import Project="..\..\build\Rx.props" />
+  <Import Project="..\..\build\ReactiveUI.props" />
+</Project>

samples/ReactiveUIDemo/ViewModels/BarViewModel.cs

@@ -0,0 +1,11 @@
+using ReactiveUI;
+
+namespace ReactiveUIDemo.ViewModels
+{
+    internal class BarViewModel : ReactiveObject, IRoutableViewModel
+    {
+        public BarViewModel(IScreen screen) => HostScreen = screen;
+        public string UrlPathSegment => "Bar";
+        public IScreen HostScreen { get; }
+    }
+}

samples/ReactiveUIDemo/ViewModels/FooViewModel.cs

@@ -0,0 +1,11 @@
+using ReactiveUI;
+
+namespace ReactiveUIDemo.ViewModels
+{
+    internal class FooViewModel : ReactiveObject, IRoutableViewModel
+    {
+        public FooViewModel(IScreen screen) => HostScreen = screen;
+        public string UrlPathSegment => "Foo";
+        public IScreen HostScreen { get; }
+    }
+}

samples/ReactiveUIDemo/ViewModels/MainWindowViewModel.cs

@@ -0,0 +1,9 @@
+using ReactiveUI;
+
+namespace ReactiveUIDemo.ViewModels
+{
+    internal class MainWindowViewModel : ReactiveObject
+    {
+        public RoutedViewHostPageViewModel RoutedViewHost { get; } = new();
+    }
+}

samples/ReactiveUIDemo/ViewModels/RoutedViewHostPageViewModel.cs

@@ -0,0 +1,21 @@
+using ReactiveUI;
+
+namespace ReactiveUIDemo.ViewModels
+{
+    internal class RoutedViewHostPageViewModel : ReactiveObject, IScreen
+    {
+        public RoutedViewHostPageViewModel()
+        {
+            Foo = new(this);
+            Bar = new(this);
+            Router.Navigate.Execute(Foo);
+        }
+
+        public RoutingState Router { get; } = new();
+        public FooViewModel Foo { get; }
+        public BarViewModel Bar { get; }
+
+        public void ShowFoo() => Router.Navigate.Execute(Foo);
+        public void ShowBar() => Router.Navigate.Execute(Bar);
+    }
+}

samples/ReactiveUIDemo/Views/BarView.axaml

@@ -0,0 +1,16 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="ReactiveUIDemo.Views.BarView"
+             HorizontalAlignment="Stretch"
+             VerticalAlignment="Stretch">
+  <Border Background="Blue">
+    <TextBlock HorizontalAlignment="Center"
+               VerticalAlignment="Center"
+               FontSize="48">
+      Bar!
+    </TextBlock>
+  </Border>
+</UserControl>

samples/ReactiveUIDemo/Views/BarView.axaml.cs

@@ -0,0 +1,28 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+using ReactiveUI;
+using ReactiveUIDemo.ViewModels;
+
+namespace ReactiveUIDemo.Views
+{
+    internal partial class BarView : UserControl, IViewFor<BarViewModel>
+    {
+        public BarView()
+        {
+            InitializeComponent();
+        }
+
+        public BarViewModel? ViewModel { get; set; }
+        
+        object? IViewFor.ViewModel 
+        {
+            get => ViewModel;
+            set => ViewModel = (BarViewModel?)value;
+        }
+
+        private void InitializeComponent()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+    }
+}

samples/ReactiveUIDemo/Views/FooView.axaml

@@ -0,0 +1,16 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="ReactiveUIDemo.Views.FooView"
+             HorizontalAlignment="Stretch"
+             VerticalAlignment="Stretch">
+  <Border Background="Red">
+    <TextBlock HorizontalAlignment="Center"
+               VerticalAlignment="Center"
+               FontSize="48">
+      Foo!
+    </TextBlock>
+  </Border>
+</UserControl>

samples/ReactiveUIDemo/Views/FooView.axaml.cs

@@ -0,0 +1,28 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+using ReactiveUI;
+using ReactiveUIDemo.ViewModels;
+
+namespace ReactiveUIDemo.Views
+{
+    internal partial class FooView : UserControl, IViewFor<FooViewModel>
+    {
+        public FooView()
+        {
+            InitializeComponent();
+        }
+
+        public FooViewModel? ViewModel { get; set; }
+        
+        object? IViewFor.ViewModel 
+        {
+            get => ViewModel;
+            set => ViewModel = (FooViewModel?)value;
+        }
+
+        private void InitializeComponent()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+    }
+}