Added API for closing FlyoutApplication from the Flyout control in two seperate projects.

samples/NotificationFlyoutSample/NotificationFlyoutSample.sln

@@ -18,6 +18,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NotificationFlyout.Wpf.UI",
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NotificationFlyout.Wpf.UI.Controls", "..\..\src\NotificationFlyout.Wpf.UI.Controls\NotificationFlyout.Wpf.UI.Controls.csproj", "{094A2030-C430-490B-AB26-205385A0D4BF}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NotificationFlyout.Uwp.UI", "..\..\src\NotificationFlyout.Uwp.UI\NotificationFlyout.Uwp.UI.csproj", "{ADE190A2-F751-4836-B8F4-BF56694A4B3F}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -139,6 +141,26 @@ Global
 		{094A2030-C430-490B-AB26-205385A0D4BF}.Release|x64.Build.0 = Release|x64
 		{094A2030-C430-490B-AB26-205385A0D4BF}.Release|x86.ActiveCfg = Release|Any CPU
 		{094A2030-C430-490B-AB26-205385A0D4BF}.Release|x86.Build.0 = Release|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|ARM.ActiveCfg = Debug|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|ARM.Build.0 = Debug|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|ARM64.ActiveCfg = Debug|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|ARM64.Build.0 = Debug|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|x64.ActiveCfg = Debug|x64
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|x64.Build.0 = Debug|x64
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Debug|x86.Build.0 = Debug|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|ARM.ActiveCfg = Release|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|ARM.Build.0 = Release|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|ARM64.ActiveCfg = Release|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|ARM64.Build.0 = Release|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|x64.ActiveCfg = Release|x64
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|x64.Build.0 = Release|x64
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|x86.ActiveCfg = Release|Any CPU
+		{ADE190A2-F751-4836-B8F4-BF56694A4B3F}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

samples/NotificationFlyoutSample/NotificationFlyoutSample/NotificationFlyoutSample.csproj

@@ -169,6 +169,10 @@
       <Project>{95f851e4-87a5-4bb7-953e-c0fe3b306f0e}</Project>
       <Name>NotificationFlyout.Uwp.UI.Controls</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\src\NotificationFlyout.Uwp.UI\NotificationFlyout.Uwp.UI.csproj">
+      <Project>{ade190a2-f751-4836-b8f4-bf56694a4b3f}</Project>
+      <Name>NotificationFlyout.Uwp.UI</Name>
+    </ProjectReference>
   </ItemGroup>
   <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '14.0' ">
     <VisualStudioVersion>14.0</VisualStudioVersion>

samples/NotificationFlyoutSample/NotificationFlyoutSample/Shell.xaml

@@ -8,6 +8,7 @@
     LightIconSource="/Assets/Icon-Light.ico">
     <controls:NotificationFlyout.ContextMenuItems>
         <MenuFlyoutItem Click="MenuFlyoutItem_Click" Text="Click me" />
+        <MenuFlyoutItem Click="MenuFlyoutItem_Click_1" Text="Exit" />
     </controls:NotificationFlyout.ContextMenuItems>
     <StackPanel Margin="24">
         <ComboBox

samples/NotificationFlyoutSample/NotificationFlyoutSample/Shell.xaml.cs

@@ -31,5 +31,11 @@ namespace NotificationFlyoutSample
             MessageDialog d = new MessageDialog("Hello from context menu!");
             d.ShowAsync();
         }
+
+        private void MenuFlyoutItem_Click_1(object sender, RoutedEventArgs e)
+        {
+            var app = GetApplication();
+            app.Exit();
+        }
     }
 }

src/NotificationFlyout.Uwp.UI.Controls/NotificationFlyout.Uwp.UI.Controls.csproj

@@ -27,5 +27,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+  </ItemGroup>  
+  
+  <ItemGroup>
+    <ProjectReference Include="..\NotificationFlyout.Uwp.UI\NotificationFlyout.Uwp.UI.csproj" />
   </ItemGroup>
+  
 </Project>

src/NotificationFlyout.Uwp.UI.Controls/NotificationFlyout/NotificationFlyout.cs

@@ -28,8 +28,10 @@ namespace NotificationFlyout.Uwp.UI.Controls
                 typeof(ElementTheme), typeof(NotificationFlyout),
                 new PropertyMetadata(ElementTheme.Default, OnRequestedThemePropertyChanged));
 
+        public static INotificationFlyoutApplication _applicationInstance;
+
         public static DependencyProperty ContentProperty =
-            DependencyProperty.Register(nameof(Content),
+                    DependencyProperty.Register(nameof(Content),
                  typeof(UIElement), typeof(NotificationFlyout),
                  new PropertyMetadata(null, OnContentPropertyChanged));
 
@@ -37,7 +39,6 @@ namespace NotificationFlyout.Uwp.UI.Controls
             DependencyProperty.Register(nameof(ContextMenuItems),
                  typeof(IList<MenuFlyoutItemBase>), typeof(NotificationFlyout),
                  new PropertyMetadata(null));
-
         public NotificationFlyout()
         {
             ContextMenuItems = new ObservableCollection<MenuFlyoutItemBase>();
@@ -45,8 +46,11 @@ namespace NotificationFlyout.Uwp.UI.Controls
         }
 
         internal event EventHandler ContentChanged;
+
         internal event EventHandler IconSourceChanged;
+
         internal event EventHandler<NotificationFlyoutMenuItemsChangedEventArgs> MenuItemsChanged;
+
         internal event EventHandler RequestedThemeChanged;
 
         public UIElement Content
@@ -79,6 +83,16 @@ namespace NotificationFlyout.Uwp.UI.Controls
             set => SetValue(RequestedThemeProperty, value);
         }
 
+        public static INotificationFlyoutApplication GetApplication()
+        {
+            return _applicationInstance;
+        }
+
+        internal static void SetApplication(INotificationFlyoutApplication application)
+        {
+            _applicationInstance = application;
+        }
+
         private static void OnContentPropertyChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs args)
         {
             var sender = dependencyObject as NotificationFlyout;

src/NotificationFlyout.Uwp.UI/INotificationFlyoutApplication.cs

@@ -0,0 +1,7 @@
+namespace NotificationFlyout.Uwp.UI
+{
+    public interface INotificationFlyoutApplication
+    {
+        void Exit();
+    }
+}

src/NotificationFlyout.Wpf.UI.Controls/NotificationFlyout - Backup.Wpf.UI.Controls.csproj

@@ -1,25 +0,0 @@
-<Project Sdk="MSBuild.Sdk.Extras">
-
-  <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
-    <UseWPF>true</UseWPF>
-    <AssetTargetFallback>uap10.0.19041</AssetTargetFallback>
-    <Platforms>AnyCPU;x64</Platforms>
-    <MSBuildWarningsAsMessages>NU1702</MSBuildWarningsAsMessages>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Toolkit.Wpf.UI.XamlHost" Version="6.1.2" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\NotificationFlyout.Uwp.UI.Controls\NotificationFlyout.Uwp.UI.Controls.csproj" />
-    <ProjectReference Include="..\NotificationFlyout.Uwp.UI\NotificationFlyout.Uwp.UI.csproj" />
-    <ProjectReference Include="..\NotificationFlyout.Wpf.UI\NotificationFlyout.Wpf.UI.csproj" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <PackageReference Update="Microsoft.VCRTForwarders.140" Version="1.0.7" />
-  </ItemGroup>
-
-</Project>

src/NotificationFlyout.Wpf.UI.Controls/NotificationFlyout/NotificationFlyoutApplication.cs

@@ -1,21 +1,26 @@
-using System;
+using NotificationFlyout.Uwp.UI;
+using System;
 using System.Windows;
 using System.Windows.Markup;
 
 namespace NotificationFlyout.Wpf.UI.Controls
 {
     [ContentProperty(nameof(Flyout))]
-    public class NotificationFlyoutApplication : DependencyObject
+    public class NotificationFlyoutApplication : DependencyObject, INotificationFlyoutApplication
     {
         public static DependencyProperty FlyoutProperty =
             DependencyProperty.Register(nameof(Flyout),
                 typeof(Uwp.UI.Controls.NotificationFlyout), typeof(NotificationFlyoutApplication),
                 new PropertyMetadata(null, OnFlyoutPropertyChanged));
 
+        private static NotificationFlyoutApplication _instance;
         private readonly ContextMenuXamlHost _contextMenuXamlHost;
         private readonly NotificationFlyoutXamlHost _notificationFlyoutXamlHost;
+
         public NotificationFlyoutApplication()
         {
+            _instance = this;
+
             _notificationFlyoutXamlHost = new NotificationFlyoutXamlHost();
             _notificationFlyoutXamlHost.ContextMenuRequested += OnContextMenuRequested;
             _notificationFlyoutXamlHost.Show();
@@ -24,12 +29,20 @@ namespace NotificationFlyout.Wpf.UI.Controls
             _contextMenuXamlHost.Show();
         }
 
+        public static INotificationFlyoutApplication Current => _instance;
+
         public Uwp.UI.Controls.NotificationFlyout Flyout
         {
             get => (Uwp.UI.Controls.NotificationFlyout)GetValue(FlyoutProperty);
             set => SetValue(FlyoutProperty, value);
         }
 
+        public void Exit()
+        {
+            _contextMenuXamlHost.Close();
+            _notificationFlyoutXamlHost.Close();
+        }
+
         public void HideFlyout()
         {
             _notificationFlyoutXamlHost.HideFlyout();
@@ -53,8 +66,10 @@ namespace NotificationFlyout.Wpf.UI.Controls
 
         private void OnFlyoutPropertyChanged()
         {
-            _notificationFlyoutXamlHost.SetFlyout(Flyout);
+            _notificationFlyoutXamlHost?.SetFlyout(Flyout);
-            _contextMenuXamlHost.SetFlyout(Flyout);
+            _contextMenuXamlHost?.SetFlyout(Flyout);
+
+            Uwp.UI.Controls.NotificationFlyout.SetApplication(this);
         }
     }
 }

src/NotificationFlyout.Wpf.UI.Controls/NotificationFlyout/NotificationFlyoutXamlHost.cs

@@ -136,6 +136,11 @@ namespace NotificationFlyout.Wpf.UI.Controls
             _taskbarHelper.TaskbarChanged += OnTaskbarChanged;
         }
 
+        protected override void OnClosed(EventArgs args)
+        {
+            _notificationIconHelper.Dispose();
+        }
+
         private void UpdateFlyoutContent()
         {
             if (_flyout == null) return;