Description
After migrating from .net8 to .net9 this issue appeared.
After navigating from a login screen to the app's home page, which does not have a status bar, I receive a System.NullReferenceException
[0:] * Unhandled Exception *: System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Maui.Controls.Handlers.Compatibility.NavigationRenderer.SetStatusBarStyle()
at Microsoft.Maui.Controls.Handlers.Compatibility.NavigationRenderer.ViewWillAppear(Boolean animated)
at Microsoft.Maui.Controls.Handlers.Compatibility.NavigationRenderer.__Registrar_Callbacks__.callback_1068_Microsoft_Maui_Controls_Handlers_Compatibility_NavigationRenderer_ViewWillAppear(IntPtr pobj, IntPtr sel, Byte p0, IntPtr* exception_gchandle)
--- End of stack trace from previous location ---
at ObjCRuntime.Runtime.ThrowException(IntPtr gchandle) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/ObjCRuntime/Runtime.cs:line 2742
at UIKit.UIApplication.UIApplicationMain(Int32 argc, String[] argv, IntPtr principalClassName, IntPtr delegateClassName) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:line 64
at UIKit.UIApplication.Main(String[] args, Type principalClass, Type delegateClass) in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:line 96
at App.Program.Main(String[] args) in C:\dev\App\Platforms\iOS\Program.cs:line 16
I am using NavigationPage.HasNavigationBar as false at HomePage but using it as true did not throw an exception in my tests
The Home page is a FlyoutPage and the details is the page with the tag NavigationPage.HasNavigationBar
This crash happens only when i try to navigate from login page to home page, if the application starts directly in that, the exception doesn't happens, using NavigationPage.HasNavigationBar as true or false.
Steps to Reproduce
I don't know exactly the reason of that, so, don't have a sample
Link to public reproduction project repository
No response
Version with bug
9.0.70 SR7
Is this a regression from previous behavior?
Yes, this used to work in .NET MAUI
Last version that worked well
8.0.80 SR8
Affected platforms
iOS
Affected platform versions
iOS only
Did you find any workaround?
Nop
Relevant log output
Description
After migrating from .net8 to .net9 this issue appeared.
After navigating from a login screen to the app's home page, which does not have a status bar, I receive a System.NullReferenceException
I am using NavigationPage.HasNavigationBar as false at HomePage but using it as true did not throw an exception in my tests
The Home page is a FlyoutPage and the details is the page with the tag NavigationPage.HasNavigationBar
This crash happens only when i try to navigate from login page to home page, if the application starts directly in that, the exception doesn't happens, using NavigationPage.HasNavigationBar as true or false.
Steps to Reproduce
I don't know exactly the reason of that, so, don't have a sample
Link to public reproduction project repository
No response
Version with bug
9.0.70 SR7
Is this a regression from previous behavior?
Yes, this used to work in .NET MAUI
Last version that worked well
8.0.80 SR8
Affected platforms
iOS
Affected platform versions
iOS only
Did you find any workaround?
Nop
Relevant log output