VerticalStackLayout inside Scrollview: Button at the bottom not clickable on IOS

Description

When you put a VerticalStackLayout inside a ScrollView and load some data dynamically (i.e. some Text using an async function) and then put a button on the end of the VerticalStackLayout, the Button-Handler never gets called. This works on Android without any problem. For me related to: #8820

Steps to Reproduce

1. Clone the repo
2. Run the app on IOS
3. Click on the “Button at bottom” Button
4. Scroll to the bottom of the page and try to click the button

Link to public reproduction project repository

https://github.com/FM1973/RefreshGridRepo.git

Version with bug

7.0 (current)

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS 14.x +

Did you find any workaround?

Yes, there is a workaround. It´s the same as before having the general ScrollView-problem stated in #8820 Look there: https://github.com/dotnet/maui/issues/8820#issuecomment-1352923013

Relevant log output

-

[jadenrogers]

@hartez Please correct me if I am wrong but when you say “This is fixed by https://github.com/dotnet/maui/pull/14176.” can people on .net 7 expect these fixes? As .net 8 isn’t released is it fair to say these are fixed. Running into this a lot where issues are raised in current .net 7 and fixed for .net 8 which is a little frustrating.

Maybe we could avoid using “its fixed”, until a PR is raised against .net 7. I feel I am going to have to upgrade to .net 8 to get all these fixes but then is it the same again when we encounter problems… Fixed in .net 9 Preview X?

Thanks

[nicjay]

The InvalidateMeasure workaround does still work for me as of 7.0.81 for this particular issue.

To be clear, I use code similar to the following in my code-behind:

MyVerticalStackLayout.SizeChanged += (object sender, EventArgs e) =>
{
    (MyScrollView as IView).InvalidateMeasure();
}

XAML

<ScrollView x:Name="MyScrollView">
    <VerticalStackLayout x:Name="MyVerticalStackLayout">
    ...
    </VerticalStackLayout>
</ScrollView>

However, it would be ideal if this were not necessary.