Call LayoutIfNeeded on ObservableGroupedSource.Reload

[jfversluis]

Description of Change

TBD

Issues Resolved

• fixes [Bug] [iOS] CollectionView iOS inner crash while adding items to group, items aren't displayed #13268

API Changes

None

Platforms Affected

• iOS

Behavioral/Visual Changes

None

Before/After Screenshots

Not applicable

Testing Procedure

PR Checklist

• Targets the correct branch
• Tests are passing (or failures are unrelated)

[alexvitoriano]

Any date to release this fix? I've tested this PR in my project and it fix one important feature!

[Seuleuzeuh]

Hi @jfversluis 👋 !
I use the Nuget version of this PR in production since some month (28 oct. 2022), and the number of crash have dropped !
I'd like to take benefit of the last service release and this fix, any news for a release of this fix ?

Or maybe you can made a rebase of this PR, like that i can take benefits of both 😄

Thanks !

[thisisthekap]

@jfversluis Any chance that this one is making it into a Xamarin.Forms service release?

[jfversluis]

Now that we're so close to the sunsetting of Xamarin.Forms unfortunately we won't be able to take this in anymore, we're really sorry about that. Nevertheless, thank you so much for your time and effort that you have put into this PR.

Please have a look at the evolution of Xamarin.Forms, .NET MAUI. A lot of development has been going on there. Hopefully this issue was already fixed in that codebase. If not, feel free to port this over to there.

Again, thank you so much for being a contributor and Xamarin.Forms user!