xamarin.forms – How to change orientation of some pages in iOS 16 in Xamarin Forms?

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I want to change orientation of some pages in my app in Xamarin Forms.

I am using Visual Studio 2019 for Mac and Xcode version 12.4

I have used DependencyService. It is working fine till iOS 15 but not able to rotate in iOS 16.

I am sharing sample code for reference.

AppDelegate.cs

public override UIInterfaceOrientationMask GetSupportedInterfaceOrientations(UIApplication application, [Transient] UIWindow forWindow)
    {
        if (App.IsAllowRotation)
        {
            return UIInterfaceOrientationMask.Landscape;
        }

        else
        {
            return UIInterfaceOrientationMask.Portrait;
        }
    }

Service in iOS

public class OrientationService : IOrientationHandler
{

    public void Landscape()
    {
        UIDevice.CurrentDevice.SetValueForKey(new NSNumber((int)UIInterfaceOrientation.LandscapeRight), new NSString("orientation"));
    }

    public void Portrait()
    {
        UIDevice.CurrentDevice.SetValueForKey(new NSNumber((int)UIInterfaceOrientation.Portrait), new NSString("orientation"));
    }
}

Till iOS 15 it is working fine. For iOS 16, I am trying to update Service by adding below code:

public class OrientationService : IOrientationHandler
{

    public void Landscape()
    {

        if (UIDevice.CurrentDevice.CheckSystemVersion(16, 0))
        {
            
            var windowScene = (UIApplication.SharedApplication.ConnectedScenes.ToArray()[0] as UIWindowScene);
           
            if (windowScene != null)
            {
                var nav = UIApplication.SharedApplication.KeyWindow?.RootViewController;
                if (nav != null)
                {                        
                    nav.SetNeedsUpdateOfSupportedInterfaceOrientations();

                    windowScene.RequestGeometryUpdate(
                        new UIWindowSceneGeometryPreferencesIOS(UIInterfaceOrientationMask.Portrait),
                        error => { }
                    );
                }
            }
        }
        else
        {
            UIDevice.CurrentDevice.SetValueForKey(new NSNumber((int)UIInterfaceOrientation.Portrait), new NSString("orientation"));
        }
    }

    public void Portrait()
    {
        UIDevice.CurrentDevice.SetValueForKey(new NSNumber((int)UIInterfaceOrientation.Portrait), new NSString("orientation"));
    }
 }

I am getting errors for methods –
SetNeedsUpdateOfSupportedInterfaceOrientations(),
RequestGeometryUpdate,
UIWindowSceneGeometryPreferencesIOS

May I know any namespace is required?

What changes need to be done for iOS 16 in Service and AppDelegate in Xamarin Forms iOS app?

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