iOS - Shell - SetTabBarIsVisible does not resize the page to take up the space left by the tab bar

[mattdreiss]

Description

On iOS, hiding the Shell tab bar does not resize the page to take up the space left by the tab bar. I noticed that this worked as intended on Xamarin Forms. I am in the process of upgrading an app from Xamarin Forms to MAUI. I have not tested this in previous versions of MAUI.

Here is a video of the bug on iOS

ios_bug.mov

It works as expected on Android

android_works.mov

If the action also toggles the visibility of the NavBar, then the TabBar space will be reclaimed as expected on iOS

ios_with_nav_bar_works.mov

Here is a screenshot of my dotnet workloads

Steps to Reproduce

I added a basic test app that has a button that will toggle the visibility of the tab bar.
Tap the button and observe that the bug on iOS but works on Android.

Link to public reproduction project repository

https://github.com/mattdreiss/maui-tab-bar-bug

Version with bug

8.0.6 SR1

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

No response

Did you find any workaround?

I have not found a workaround yet.

Relevant log output

No response

[PureWeen]

Can you test with the latest nightly build?
https://github.com/dotnet/maui/wiki/Nightly-Builds

[mattdreiss]

@PureWeen Thank you for your quick response! I updated the repo to use the nightly build and I still see the issue.

[PureWeen]

Duplicate of #17390