iOS CollectionView items overlap when their content is resized

[claytonone]

Description

If the size of an iOS CollectionView item increases then it will overlap the item below it. This issue does not occur on Android.

Steps to Reproduce

1. Add a CollectionView with a DataTemplate
2. Increase the size of any item in the list
3. See that the it overlaps the item below it

Link to public reproduction project repository

https://github.com/claytonone/MauiCollectionViewResizeBug/tree/main/iOSCollectionViewBug

Version with bug

8.0.10 SR3

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

No response

Did you find any workaround?

No

Relevant log output

No response

[Redth]

Seems like when a control causes the layout (I tested both with the VerticalStackLayout as well as a Grid wrapping the Label in the item template) to grow, the layout isn't notifying the platform view or the cell to be resized.

If you remove the layout from the item template and just have the Label:

<DataTemplate x:DataType="local:Item">
  <Label Text="{Binding Content}" FontSize="16" Padding="10" TextColor="Grey" />
</DataTemplate>

Then the content seems to adjust properly.

[Redth]

Duplicate of #21141