Gestures still don't work on Label Spans

[CostasAthan]

Description

This is a problem supposedly solved and closed: #14410, but unfortunately in reality it still exists.

With .NET 8 and targeting Android 34 the gestures still don't work on Span tags of Labels.

I have provided a link to a repository that reproduces the bug.

Steps to Reproduce

No response

Link to public reproduction project repository

https://github.com/CostasAthan/GesturesLabelSpansFailure

Version with bug

Unknown/Other

Is this a regression from previous behavior?

Yes, this used to work in Xamarin.Forms

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

Android 34

Did you find any workaround?

No.

Relevant log output

No response

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

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[kevinxufei]

This issue has been verified using Visual Studio 17.12 Preview 1 (8.0.80 & 8.0.3). Can repro on android platform with sample project.

[kubaflo]

I cannot reproduce it

Screen.Recording.2024-09-01.at.14.14.10.mov

public partial class MainPage : ContentPage
{
	public MainPage()
	{
		InitializeComponent();
		BindingContext = new MainPageViewModel();
	}
}

public class MainPageViewModel : INotifyPropertyChanged
{
	public MainPageViewModel()
	{
		OpenAlertCommand = new Command(()=>{
			Application.Current!.MainPage.DisplayAlert("sad","asd","sda");
		});
	}
	public Command OpenAlertCommand{get; set;}
	public event PropertyChangedEventHandler PropertyChanged;

	protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

[CostasAthan]

@kubaflo

Is your version of code necessary? Shouldn't my version work too? It used to work with Xamarin.Forms.

[kubaflo]

@CostasAthan Yeah, you're incorrectly using Community Toolkit Rely Command: https://learn.microsoft.com/en-us/dotnet/communitytoolkit/mvvm/generators/relaycommand

[karthikraja-arumugam]

@CostasAthan, the problem is with the relay command's name. When using the RelayCommand attribute, the command is generated by appending Command to the method name. So, in XAML, we need to use the method name with Command appended. If you update your relay command as shown below, it should work correctly.

[RelayCommand]
private async Task OpenWithRelay(string url)`
{
await Launcher.OpenAsync(url);
} 

<Span.GestureRecognizers>
    <TapGestureRecognizer Command="{Binding OpenWithRelayCommand}" CommandParameter="https://example.com/" />
</Span.GestureRecognizers>

[kubaflo]

@CostasAthan @karthikraja-arumugam is right! Let us know if it fixes your problem :)

[CostasAthan]

@karthikraja-arumugam
It's not only the RelayCommand that does not work though. In my version of code neither ICommand nor Command work. ICommand definitely used to work in Xamarin.Forms implemented in the same way I have implemented it in the repository I have shared for this issue.

@kubaflo
Your ViewModel approach works fine. But the ICommand in Xamarin.Forms definitely used to work also in the way I have implemented my code. I don't know if that's a bug or if something has changed with MAUI.