[BUG] Regression in 14.0.0: `DefaultPopupSettings` Broken for Padding + Margin

[dartasen]

Is there an existing issue for this?

• I have searched the existing issues

Did you read the "Reporting a bug" section on Contributing file?

• I have read the "Reporting a bug" section on Contributing file: https://github.com/CommunityToolkit/Maui/blob/main/CONTRIBUTING.md#reporting-a-bug

Current Behavior

I use popup in my application with the IPopupService, after upgrading to the latest version of the toolkit they don't behave the same.

Padding and margin seems broken (Defaults are set in MauiProgram). Whether I set it in the popup xaml or in the PopupDefault.

Screenshots are from an Android 16 Device (Pixel 9a), but can repro as well on iOS 18.4 & 26

Toolkit 13 :

Toolkit 14 :

Expected Behavior

Works as previous version

Steps To Reproduce

.UseMauiCommunityToolkit(static options =>
{
 options.SetPopupOptionsDefaults(new DefaultPopupOptionsSettings()
 {
     CanBeDismissedByTappingOutsideOfPopup = false,
     PageOverlayColor = Color.FromRgba(0, 0, 0, 200),
     Shape = new RoundRectangle()
     {
         CornerRadius = new CornerRadius(20, 20, 20, 20),
         StrokeThickness = 0d
     },
     Shadow = null,
     OnTappingOutsideOfPopup = null
 });

 options.SetPopupDefaults(new DefaultPopupSettings()
 {
     CanBeDismissedByTappingOutsideOfPopup = false,
     BackgroundColor = Color.FromArgb("22314E"),
     HorizontalOptions = LayoutOptions.Center,
     VerticalOptions = LayoutOptions.Center,
     Margin = new Thickness(12),
     Padding = new Thickness(10)
 });
})

Note : Margin/Padding doesn't apply if adding those properties to the popup xaml

• Using toolkit 13, display a popup with Margin/Padding
• Upgrade to toolkit 14, same popup layout will break

Link to public reproduction project repository

N/A

Environment

- .NET MAUI CommunityToolkit: 14.0.0
- OS: Windows 11
- .NET MAUI: 10.0.31

Anything else?

No response

[dotnet-policy-service]

Hi @@dartasen! We have added the needs reproduction label to this issue, which indicates that we are unable to take further action until you provide a reproduction sample that we can use to reproduce + fix your bug. In accordance with the Reporting a bug section of our Contributing.md that you confirmed reading before you submitted this Issue, we ask that every Issue author provide a link to an open-source repository containing the reproduction sample app. This issue will be closed automatically in 5 days if we do not receive a reproduction sample from you. Please feel free to re-open this Issue once you have provided a reproduction sample.

[gerritCarat]

Issue happens in a raw example project when upgrading from 13 to 14.

[dartasen]

Can provide a reproduction if it's really needed, but the issue is pretty much easy to reproduce on a sample

[TheCodeTraveler]

Yes, thank you. A reproduction sample is required.

[VladislavAntonyuk]

@TheCodeTraveler I was able to reproduce it with our sample app CollectionView Popup Sample. The issue with the new BindablePropertyGenerator and DefaultValueCreator.