Fix Windows Picker Initial Path is not set

samples/CommunityToolkit.Maui.Sample/ViewModels/Essentials/FileSaverViewModel.cs

@@ -38,7 +38,8 @@ async Task SaveFile(CancellationToken cancellationToken)
 		try
 		{
 			var fileName = Application.Current?.Windows[0].Page?.DisplayPromptAsync("FileSaver", "Choose filename") ?? Task.FromResult("test.txt");
-			var fileLocationResult = await fileSaver.SaveAsync(await fileName, stream, cancellationToken);
+			var initialFolder = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
+			var fileLocationResult = await fileSaver.SaveAsync(initialFolder, await fileName, stream, cancellationToken);
 			fileLocationResult.EnsureSuccess();
 
 			await Toast.Make($"File is saved: {fileLocationResult.FilePath}").Show(cancellationToken);

samples/CommunityToolkit.Maui.Sample/ViewModels/Essentials/FolderPickerViewModel.cs

@@ -33,7 +33,8 @@ async Task PickFolder(CancellationToken cancellationToken)
 			return;
 		}
 
-		var folderPickerResult = await folderPicker.PickAsync(cancellationToken);
+		var initialFolder = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
+		var folderPickerResult = await folderPicker.PickAsync(initialFolder, cancellationToken);
 		if (folderPickerResult.IsSuccessful)
 		{
 			await Toast.Make($"Folder picked: Name - {folderPickerResult.Folder.Name}, Path - {folderPickerResult.Folder.Path}", ToastDuration.Long).Show(cancellationToken);

src/CommunityToolkit.Maui.Core/CommunityToolkit.Maui.Core.csproj

@@ -55,7 +55,6 @@
     <PackageReference Include="Microsoft.Maui.Core" Version="$(MauiPackageVersion)" />
     <PackageReference Include="Microsoft.Maui.Essentials" Version="$(MauiPackageVersion)" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" Condition=" '$(Configuration)'=='Release' " PrivateAssets="All" />
-    <PackageReference Include="System.Speech" Version="10.0.0" Condition="'$(TargetFramework)' == '$(NetVersion)-windows10.0.19041.0'" />
   </ItemGroup>
 
   <ItemGroup Condition="$(TargetFramework.Contains('-tizen'))">
@@ -64,4 +63,9 @@
     <PackageReference Include="Tizen.UIExtensions.NUI" Version="*" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'net10.0-windows10.0.19041.0'">
+    <PackageReference Include="System.Speech" Version="10.0.1" />
+    <PackageReference Include="Microsoft.WindowsAppSDK" Version="2.0.0-experimental3" />
+  </ItemGroup>
+
 </Project>

src/CommunityToolkit.Maui.Core/Essentials/FileSaver/FileSaverImplementation.windows.cs

@@ -1,5 +1,6 @@
+using System;
 using System.Diagnostics;
-using Windows.Storage.Pickers;
+using Microsoft.Windows.Storage.Pickers;
 
 namespace CommunityToolkit.Maui.Storage;
 
@@ -10,11 +11,19 @@ public sealed partial class FileSaverImplementation : IFileSaver
 
 	async Task<string> InternalSaveAsync(string initialPath, string fileName, Stream stream, IProgress<double>? progress, CancellationToken cancellationToken)
 	{
-		var savePicker = new FileSavePicker
+		var window = IPlatformApplication.Current?.Application.Windows[0].Handler?.PlatformView as MauiWinUIWindow;
+		if (window is null)
 		{
-			SuggestedStartLocation = PickerLocationId.DocumentsLibrary
+			throw new FileSaveException(
+				"Cannot present file picker: No active window found. Ensure the app is active with a visible window.");
+		}
+
+		var savePicker = new FileSavePicker(window.AppWindow.Id)
+		{
+			SuggestedStartLocation = PickerLocationId.DocumentsLibrary,
+			SuggestedFolder = initialPath,
+			SuggestedFileName = Path.GetFileNameWithoutExtension(fileName)
 		};
-		WinRT.Interop.InitializeWithWindow.Initialize(savePicker, Process.GetCurrentProcess().MainWindowHandle);
 
 		var extension = Path.GetExtension(fileName);
 		if (!string.IsNullOrEmpty(extension))
@@ -23,15 +32,18 @@ async Task<string> InternalSaveAsync(string initialPath, string fileName, Stream
 		}
 
 		savePicker.FileTypeChoices.Add("All files", allFilesExtension);
-		savePicker.SuggestedFileName = Path.GetFileNameWithoutExtension(fileName);
 
 		var filePickerOperation = savePicker.PickSaveFileAsync();
-
-		await using var _ = cancellationToken.Register(CancelFilePickerOperation);
+		await using var taskCompetedSource = cancellationToken.Register(CancelFilePickerOperation);
 		var file = await filePickerOperation;
-		if (string.IsNullOrEmpty(file?.Path))
+		if (file is null)
+		{
+			throw new OperationCanceledException("Operation cancelled.");
+		}
+
+		if (string.IsNullOrEmpty(file.Path))
 		{
-			throw new FileSaveException("Operation cancelled or Path doesn't exist.");
+			throw new FileSaveException("Path doesn't exist.");
 		}
 
 		await WriteStream(stream, file.Path, progress, cancellationToken).ConfigureAwait(false);

src/CommunityToolkit.Maui.Core/Essentials/FolderPicker/FolderPickerImplementation.windows.cs

@@ -1,6 +1,10 @@
+using System;
 using System.Diagnostics;
 using CommunityToolkit.Maui.Core.Primitives;
-using Windows.Storage.Pickers;
+using Microsoft.Maui.ApplicationModel;
+using Microsoft.UI;
+using Microsoft.Windows.AppLifecycle;
+using Microsoft.Windows.Storage.Pickers;
 
 namespace CommunityToolkit.Maui.Storage;
 
@@ -10,12 +14,18 @@ public sealed partial class FolderPickerImplementation : IFolderPicker
 	async Task<Folder> InternalPickAsync(string initialPath, CancellationToken cancellationToken)
 	{
 		cancellationToken.ThrowIfCancellationRequested();
-		var folderPicker = new Windows.Storage.Pickers.FolderPicker()
+		var window = IPlatformApplication.Current?.Application.Windows[0].Handler?.PlatformView as MauiWinUIWindow;
+		if (window is null)
 		{
-			SuggestedStartLocation = PickerLocationId.DocumentsLibrary
+			throw new FolderPickerException(
+				"Cannot present folder picker: No active window found. Ensure the app is active with a visible window.");
+		}
+		var folderPicker = new Microsoft.Windows.Storage.Pickers.FolderPicker(window.AppWindow.Id)
+		{
+			SuggestedStartLocation = PickerLocationId.DocumentsLibrary,
+			SuggestedFolder = initialPath
 		};
-		WinRT.Interop.InitializeWithWindow.Initialize(folderPicker, Process.GetCurrentProcess().MainWindowHandle);
-		folderPicker.FileTypeFilter.Add("*");
+
 		var folderPickerOperation = folderPicker.PickSingleFolderAsync();
 
 		void CancelFolderPickerOperation()
@@ -27,10 +37,15 @@ void CancelFolderPickerOperation()
 		var folder = await folderPickerOperation;
 		if (folder is null)
 		{
-			throw new FolderPickerException("Operation cancelled or Folder doesn't exist.");
+			throw new OperationCanceledException("Operation cancelled.");
+		}
+
+		if (string.IsNullOrEmpty(folder.Path))
+		{
+			throw new FolderPickerException("Folder doesn't exist.");
 		}
 
-		return new Folder(folder.Path, folder.Name);
+		return new Folder(folder.Path, new DirectoryInfo(folder.Path).Name);
 	}
 
 	Task<Folder> InternalPickAsync(CancellationToken cancellationToken)