Add notification functionality from WinAppSDK

Sample Applications/Win11ThemeGallery/App.xaml.cs

@@ -98,7 +98,8 @@ public partial class App : Application
 
             services.AddTransient<UserDashboardPage>();
             services.AddTransient<UserDashboardPageViewModel>();
-
+            services.AddTransient<NotificationsPage>();
+            services.AddTransient<NotificationsPageViewModel>();
             services.AddSingleton<SettingsPage>();
             services.AddSingleton<SettingsPageViewModel>();
         }).Build();

Sample Applications/Win11ThemeGallery/ViewModels/MainWindowViewModel.cs

@@ -135,6 +135,12 @@ public partial class MainWindowViewModel : ObservableObject
                 new NavigationItem("PasswordBox", typeof(PasswordBoxPage)),
             }
         },
+        new NavigationItem
+        {
+            Name = "Notifications",
+            PageType = typeof(NotificationsPage),
+            Icon = "\xE8D2"
+        },
     };
 
     [ObservableProperty]

Sample Applications/Win11ThemeGallery/ViewModels/NotificationsPageViewModel.cs

@@ -0,0 +1,43 @@
+using Microsoft.Windows.AppNotifications;
+using Microsoft.Windows.AppNotifications.Builder;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Win11ThemeGallery.ViewModels
+{
+    public partial class NotificationsPageViewModel
+    {
+        private static AppNotificationManager notificationManager;
+
+        static NotificationsPageViewModel()
+        {
+            notificationManager = AppNotificationManager.Default;
+            notificationManager.NotificationInvoked += OnNotificationInvoked;
+            notificationManager.Register();
+        }
+
+        private static void OnNotificationInvoked(AppNotificationManager sender, AppNotificationActivatedEventArgs args)
+        {
+            throw new NotImplementedException();
+        }
+
+        [RelayCommand]
+        public void SendNotification(object pageType)
+        {
+
+                var appNotification = new AppNotificationBuilder()
+                      .AddArgument("action", "ToastClick")
+                      .AddText("Notification From Gallery App")
+                      .AddText("This is an example message using WPF")
+                      .AddButton(new AppNotificationButton("Open App")
+                          .AddArgument("action", "OpenApp")
+                      )
+                      .BuildNotification();
+                notificationManager.Show(appNotification);
+
+        }
+    }
+}

Sample Applications/Win11ThemeGallery/Views/NotificationsPage.xaml

@@ -0,0 +1,14 @@
+<Page x:Class="Win11ThemeGallery.Views.NotificationsPage"
+      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+      xmlns:local="clr-namespace:Win11ThemeGallery.Views"
+      mc:Ignorable="d" 
+      d:DesignHeight="450" d:DesignWidth="800"
+      Title="NotificationsPage">
+
+    <Grid>
+        <Button Width="200" Height="100" Command="{Binding ViewModel.SendNotificationCommand, RelativeSource={RelativeSource AncestorType={x:Type local:NotificationsPage}}}" CommandParameter="{Binding PageType}">Send Notification</Button>
+    </Grid>
+</Page>

Sample Applications/Win11ThemeGallery/Views/NotificationsPage.xaml.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using Win11ThemeGallery.ViewModels;
+namespace Win11ThemeGallery.Views
+{
+    /// <summary>
+    /// Interaction logic for NotificationsPage.xaml
+    /// </summary>
+    public partial class NotificationsPage : Page
+    {
+        public NotificationsPageViewModel ViewModel { get; }
+        public NotificationsPage(NotificationsPageViewModel viewModel)
+        {
+            InitializeComponent();
+            ViewModel = viewModel;
+            DataContext = this;
+        }
+    }
+}

Sample Applications/Win11ThemeGallery/Win11ThemeGallery.csproj

@@ -2,10 +2,13 @@
 
 	<PropertyGroup>
 		<OutputType>WinExe</OutputType>
-		<TargetFramework>net9.0-windows</TargetFramework>
+		<TargetFramework>net9.0-windows10.0.19041.0</TargetFramework>
+		<RuntimeIdentifiers>win-x64;</RuntimeIdentifiers>
 		<Nullable>enable</Nullable>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<UseWPF>true</UseWPF>
+		<WindowsPackageType>None</WindowsPackageType>
+		<UseRidGraph>true</UseRidGraph>
 		<PlatformTarget>x64</PlatformTarget>
 		<Platforms>AnyCPU;x64</Platforms>
 		<StartupObject>Win11ThemeGallery.App</StartupObject>
@@ -24,7 +27,18 @@
 		<Resource Include="Assets\win11-dashboard.png" />
 		<Resource Include="Assets\*-100x100.jpg" />
 	</ItemGroup>
-
+	<ItemGroup>
+		<PackageReference Include="Microsoft.Windows.CsWin32" Version="0.2.164-beta">
+			<PrivateAssets>all</PrivateAssets>
+			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
+		<PackageReference Include="Microsoft.Windows.CsWinRT" Version="2.0.0" />
+		<PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.22621.756" />
+		<PackageReference Include="Microsoft.WindowsAppSDK" Version="1.5.240227000" />
+	</ItemGroup>
+	<ItemGroup Condition="'$(DisableMsixProjectCapabilityAddedByProject)'!='true' and '$(EnablePreviewMsixTooling)'=='true'">
+		<ProjectCapability Include="Msix" />
+	</ItemGroup>
 	<PropertyGroup>
 		<WpfRepoRoot>E:\Wpf</WpfRepoRoot>
 	</PropertyGroup>