Layout cycle detected when resizing a view that has a NavigationView and TabBar

[ArchieCoder]

Current behavior

When the view gets smaller, an exception is fired and the app crashes

Expected behavior

No crash

How to reproduce it (as minimally and precisely as possible)

UnoTabApp.zip

or

1- Create a new project with the default option (Fluent and Materal, it's irrevelant).
2- Copy paste the page content of the HomePage from Commerce app. The goal is to test the NavigationView + Tab bar. Fix the namespaces.
3- Deploy and resize the app.

Workaround

No response

Works on UWP/WinUI

None

Environment

No response

NuGet package version(s)

5.2.121

Affected platforms

Windows (WinAppSDK)

IDE

No response

IDE version

No response

Relevant plugins

No response

Anything else we need to know?

No response

[ArchieCoder]

Interesting, I tried to resize super fast and I was able to see the TabBar for 1 second before the app crashes.

[agneszitte]

fyi @kazo0, @Xiaoy312 we will need to quickly check what is happening. Maybe a resource is not found and that is causing this exception or something else

[ArchieCoder]

Good news, the utu:AutoLayout is the cause the crash.

If you replace utu:AutoLayout with StackPanel, there is no crash however, the rendering is not what to expect.

At least, it can help investigate the issue.

[agneszitte]

Good news, the utu:AutoLayout is the cause the crash.

If you replace utu:AutoLayout with StackPanel, there is no crash however, the rendering is not what to expect.

At least, it can help investigate the issue.

Yes @kazo0 also noticed the same thing with his tests. We will continue to investigate.

Thank you for the feedback @ArchieCoder, appreciated.

[carldebilly]

Cause of the bug has been found and this PR should fix it: #1138

Thanks @ArchieCoder for reporting this bug!

cc @kazo0