CommunityToolkit.Maui.Storage.FileSaver on iOS strange

Question

I have the latest release version of CommunityToolkit.Maui (5.0.0).

When I run CommunityToolkit.Maui.Storage.FileSaver in my app on iOS I get a strange user interaction. The window shown looks like that in the iOS_FileSaver.png image attached. The filename is a GUID number. The fileName string I enter in SaveAsync has no influence at all.

If however I run the git@github.com:CommunityToolkit/Maui.git/ essentials / FileSaver using static FileSaver on iOS the I get the result in the attached CommunityToolkit.Maui.png Image

I can't find out why that is. My code looks very much like the code in git@github.com:CommunityToolkit/Maui.git/ essentials / FileSaver using static FileSaver example. My code:

	public async Task<FileSaverResult> SaveToTextFile(MemoryStream TheStream, string filename)
	{
		try
		{
			return await FileSaver.Default.SaveAsync("/", "Test.txt", TheStream, default);
		}
		catch (Exception e)
		{
			var msg = $"File is not saved, {e.ToString()}";
			await Shell.Current.DisplayAlert("Error", msg, "OK");
			System.Diagnostics.Debug.WriteLine("SaveToTextFile failed: {0}", e.ToString());
			return null;
		}
		finally
		{
		}
	}

git@github.com:CommunityToolkit/Maui.git/ essentials / FileSaver using static FileSaver example code:

	[RelayCommand]
	async Task SaveFileStatic(CancellationToken cancellationToken)
	{
		using var stream = new MemoryStream(Encoding.Default.GetBytes("Hello from the Community Toolkit!"));
		var fileSaveResult = await FileSaver.SaveAsync("DCIM", "test.txt", stream, cancellationToken);
		if (fileSaveResult.IsSuccessful)
		{
			await Toast.Make($"File is saved: {fileSaveResult.FilePath}").Show(cancellationToken);
		}
		else
		{
			await Toast.Make($"File is not saved, {fileSaveResult.Exception.Message}").Show(cancellationToken);
		}
	}

What is the difference ? I very much prefer the git@github.com:CommunityToolkit/Maui.git/ essentials / FileSaver using static FileSaver example version.

-

Eigil

Answer 1

Hello,

There is a known issue reported at ToolKit's GitHub Repo: [BUG] FileSaver on Mac - new GUID used for name instead of name provided #1059

It has been fixed but not released, you can follow the progress at GitHub.

So, as you @Eigil Krogh Sorensen said, you can make NuGet package from the source, which is a good option.

Thanks for your sharing.

Best Regards,

Wenyan Zhang

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Answer 2

Cloned git@github.com:CommunityToolkit/Maui.git and made nuget pkgs from the source.'

Now it is working on iOS/iPadOS in my app !