Enable Expander on ListView + Enable Expander CollectionView GridLayout 1557

[VladislavAntonyuk]

Linked Issues

• Fixes [BUG] Expander does not resize properly inside CollectionView #1557

PR Checklist

• Has a linked Issue, and the Issue has been approved(bug) or Championed (feature/proposal)
• Has tests (if omitted, state reason in description)
• Has samples (if omitted, state reason in description)
• Rebased on top of main at time of PR
• Changes adhere to coding standard
• Documentation created or updated: Fix Expander docs for 1567 MicrosoftDocs/CommunityToolkit#517

Additional information

[TheCodeTraveler]

It looks like this fix only targets Windows. I'm seeing similar broken behavior on iOS + MacCatalyst with a CollectionView inside Expander.

Any chance you could take a look at the other platforms too?

[VladislavAntonyuk]

@brminnick as discussed at the meeting, I suggest merging it as it is (despite having some visual issues).

[leoslima13]

@brminnick @VladislavAntonyuk Do you guys have any predictions on when this will be completed? We can see several people having exactly this expansion problem within the CollectionView, I think this would be a good time for that

[vhugogarcia]

Thanks @VladislavAntonyuk for updating the expander under CollectionView and GridLayout.

I just tested it on Android and it works as expected, however it does not work on macOS and iOS (see screenshot below):

Android

macOS

iOS

On macOS/iOS, then you expand an item from the CollectionView all others disappear and it does not grow as expected. The same issue occurs on the horizontal items.

I will see if I can help with the macOS/iOS issue :)

[hayer]

@vhugogarcia has there been any progress made on this for iOS/macOS? I am currently stuck with it not working on iOS.

[ne0rrmatrix]

Looking good. One issue I am looking at in windows is:

As you can see the items at bottom are being cut off with no image being displayed. It is not scrollable at all and items expand maybe one inch or so.

[ne0rrmatrix]

In android on bottom of page it expands as expected but fails to unexpand when clicked closed. It does remove image and text but the space is left open.

2025-02-04.07-57-23.mp4

[ne0rrmatrix]

Once you have fixed the issue in windows and android with expander either failing to open properly(Windows) or failing to close properly(Android) I will be happy to approve this. It is looking very good and I can say I see no issues except the above.

[VladislavAntonyuk]

thank you @ne0rrmatrix, I will take a look at Windows, because it looks broken. Android at least renders correctly and I don't want to change the default cell size maui behavior.

[ne0rrmatrix]

Window and android are working as expected now. On IOS there is one issue still.

[VladislavAntonyuk]

@ne0rrmatrix , that is not an issue, just scroll. it is a part of listview

[ne0rrmatrix]

@ne0rrmatrix , that is not an issue, just scroll. it is a part of listview
Yes I see that now. My bad. It looks good on my end and you have made all the requested changes.

[VladislavAntonyuk]

thank you. I will update docs and merge PR in the morning