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

[FM1973]

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: #8820 (comment)

Relevant log output

-

We've added this issue to our backlog, and we will work to address it as time and resources allow. If you have any additional information or questions about this issue, please leave a comment. For additional info about issue management, please read our Triage Process.

[PureWeen]

@hartez FYI

[softlion]

Thank you !!

the workaround which consits in calling InvalidateMeasure on the ScrollView after you make visible new items does work !

I lost 4 days on trying to find a repro on that, since a full week !

The bug should be prioritized !

[fgiacomelli]

Thank you for sharing, it fixes the bug also for me