Description

There is an issue with the NavigationPage.TitleView behavior when used in iPadOS 26 and above. The issue occurs when a Page with NavigationPage.TitleView set is opened in a narrow window. Initially, the TitleView displays correctly. However, when the window width is expanded, the TitleView does not resize accordingly. Manually setting the width of the TitleView does not reflect the changes either.
The issue does not occur with older iPadOS versions using Split View.

Environment

• iPadOS Version: 26+
• MAUI Version: 9.0.120 and above

Additional Information

Until MAUI version 9.0.120, the TitleView was being laid out improperly when built with Xcode 26+ and the UIDesignRequiresCompatibility flag was absent or set to false in the Info.plist. This may be related to the current issue.

Related Issues

• Issue #31815 - Maybe the fix has to do with something??

Steps to Reproduce

1. Open a Page with NavigationPage.TitleView in a narrow window. (Enable Windowed Apps / Stage Manager)
2. Expand the window width.
3. Observe that the TitleView does not resize with the window.

Link to public reproduction project repository

https://github.com/Emtiaz-Tafsir/MauiRepro/tree/main/NarrowTitleView

Version with bug

10.0.10

Is this a regression from previous behavior?

Yes, this used to work in .NET MAUI

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iPadOS 26+

Did you find any workaround?

None

Relevant log output