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

[bondarenkod]

Description of Change

See issue description in the related issue.
Also, I'd like to mention #13268 (comment) and #13268 (comment) to save yours time.

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

Run the test #13268, you should see a list with items, app didn't crash

PR Checklist

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

[net-foundation-cla]

All CLA requirements met.

[bondarenkod]

/azp run

[azure-pipelines]

Commenter does not have sufficient privileges for PR 14341 in repo xamarin/Xamarin.Forms

[jsuarezruiz]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[jsuarezruiz]

@bondarenkod Thanks so much for your PR. I have tried it and works:

But is also working without the changes. Could you try your sample in 5.0.0 without the changes to confirm it?

[bondarenkod]

Hei! @jsuarezruiz
Thank you for your attention!
I'm deeply sorry for a huge delay, I've just recently noticed changes here.

I've tested the latest branch of XF5.0.0, moved my 13268.cs repro file there.
I cannot confirm that the issue is gone.
Tested on iOS15 emu, using the xamarin.ios-15.0.0.6 on the Mac side and VS 16.10.3 on the Windows side.

[bondarenkod]

I hope I did the merge for the conflict right. That was easier than from desktop.

[jfversluis]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[jfversluis]

Amazing job @bondarenkod thank you so much for this! You can now call yourself an official Xamarin.Forms contributor!

[lndalmd]

Hello guys,
Was this fix published in any release?

I've tried on the 5.0.0.2401 and the issue is still there.

[bondarenkod]

Hello guys, Was this fix published in any release?
I've tried on the 5.0.0.2401 and the issue is still there.

Yes.
That's another one?
Could you check XF sources and run locally demo for the 13268 from sources?
https://github.com/xamarin/Xamarin.Forms/blob/5.0.0/Xamarin.Forms.Platform.iOS/CollectionView/ObservableGroupedSource.cs#L175

[MSicc]

Hello guys, Was this fix published in any release?

I've tried on the 5.0.0.2401 and the issue is still there.

Sadly, it is :-(