iOS-specific Slider.UpdateOnTab doesn't work

[TimLandskron]

Description

When setting the iOS:Slider.UpdateOnTap="True" to true the slider should update its value when tapping somewhere on the slider. With the attached reproduction repository this functionality does not seem to work.

Steps to Reproduce

1. Download the reproduction repository here.
2. Compile & run the solution.
3. Try to tap on the slider somewhere other than the thumb.

Expected behavior: The slider updates its value.

Actual Behavior: The slider does not update its value.

Link to public reproduction project repository

https://github.com/TimLandskron/SliderUpdateOnTapIssue

Version with bug

8.0.6

Is this a regression from previous behavior?

Yes, this used to work in Xamarin.Forms

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS 15

Did you find any workaround?

No known workaround.

Relevant log output

No response

[jfversluis]

@kubaflo thanks for looking into this for us! I'm not sure if I understand correctly though. This issue speaks about a Slider, I don't see a slider on your screenshot? So I don't understand how it's relevant?

Also one thing to consider is that its noted that this worked on Xamarin.Forms. If that's the case, we should at least investigate what is going on and how to move forward on this.

[kubaflo]

@jfversluis sorry this was supposed to be a comment for this issue: https://github.com/dotnet/maui/issues/20015

[kubaflo]

@jfversluis I'm also working on this one and I will easily fix this OS-specific Slider.UpdateOnTap bug

[kubaflo]

@jfversluis @TimLandskron here it is: https://github.com/dotnet/maui/pull/20124