[iOS] Transparent Shell Navigation Bar Breaks After Keyboard Interaction on Secondary Pages

[b4j4]

Description

On iOS, when Shell.BackgroundColor is set to Transparent and the user navigates from the root page to a second page via Shell.GoToAsync, the Shell navigation bar initially renders correctly (transparent, page background showing through). After the keyboard is shown and then dismissed on that page — even if the user typed nothing — the Shell navigation bar gains a solid opaque background and no longer matches the page underneath, breaking the transparent-shell look.

EDIT: It happens also with Pickers (Date and Time picker).

Screen.Recording.2026-06-11.at.17.50.15.mov

Steps to Reproduce

1. Create a Shell-based MAUI app.
2. Set Shell.BackgroundColor="Transparent" on the AppShell.
3. On MainPage, add a button that navigates to a second page via Shell.Current.GoToAsync(nameof(SecondPage)).
4. Register the route: Routing.RegisterRoute(nameof(SecondPage), typeof(SecondPage)).
5. On SecondPage, give the page a visible BackgroundColor (e.g. LightSkyBlue) and add an Entry.
6. Run on iOS, navigate to SecondPage — Shell nav bar is transparent, page background extends behind it. Correct.
7. Tap the Entry to bring up the keyboard (no need to type anything).
8. Dismiss the keyboard.
9. Observe the Shell navigation bar — it now has a solid opaque background and the page color no longer shows through it.

Link to public reproduction project repository

No response

Version with bug

10.0.71

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

No response

Affected platforms

iOS

Affected platform versions

iOS 26

Did you find any workaround?

No

Relevant log output

[paulober]

I'm seeing what looks like the same root cause.

Setup: a pushed detail page with a normal navigation title and a SearchBar pinned to the bottom, using SafeAreaEdges="SoftInput" on the root layout.

Behavior: works correctly until the SearchBar/keyboard is dismissed. On dismiss, the content and the page background shift downward — the background no longer starts at the top of the screen but below the title, so the title area shows the window (light) background and there's a large gap before the content begins. Navigating away and reopening the page resets it.

Environment:

.NET MAUI: 10.0.71
Platform: iOS 26, device
Regression: appeared around 10.0.70/10.0.71 (SafeArea SoftInput changes); worked before.

(another MAUI minor version that breaks UI primitives because of insufficient testing....)

[LogishaSelvarajSF4525]

This issue has been validated in Visual Studio Code 1.124.2 with .NET MAUI versions 9.0.0, 9.0.120, 10.0.0 ,1o.o.50, 10.0.60, 10.0.70 & 10.0.71. It can be reproducible from 10.0.60 version on iOS(18.4 & 26.0) platform. Here I attached the sample & video reference: ShellNavigationIssue.zip

Output:

In 10.0.50 & below version(Issue not reproduced)	In from 10.0.60 to 10.0.71 version(Issue reproduced)
Screen.Recording.2026-06-15.at.11.55.22.AM.mov	Screen.Recording.2026-06-15.at.11.45.59.AM.mov

[b4j4]

UPDATE: It happens also with Pickers (Date and Time picker).