ios 13 Navigation Controls disappears while sliding down the picker in the CNContactViewController for adding Profile picture?

Question

After clicking on AddPhoto
Observe while slidingdown controller cancel, newcontact and done disappears.

var contact = new CNMutableContact
            {
                // Given and family names.
                FamilyName = participant.LastName,
                GivenName = participant.FirstName,
                //Note = participant.Note,
                OrganizationName = participant.Company,

            };
            if (!string.IsNullOrEmpty(participant.IconUrl))
            {
                NSUrl url = new NSUrl(participant.IconUrl);
                UIImage image = UIImage.LoadFromData(NSData.FromUrl(url));
                NSData data = image.AsPNG();
                contact.ImageData = data;
            }
       var contactViewController = CNContactViewController.FromNewContact(contact);

            contactViewController.Delegate = this;

In this section we add the contact with the existing data. And then adding the contactview controller as a present view controller.

var nc = new UINavigationController(contactViewController);
            this.PresentViewController(nc, true, () => {
            });

Answer 1

Assuming you are running this on a later version that IOS 8 , Swift now has the ability to enable disable scrolling of the navigation bar view . (If we are talking about the same thing.) . I thinkn the problem lies in your navigation controller instead of the above code .

You can use self.navigationController?.hidesBarsOnSwipe = false

to disable the hiding of the navigation bar on scrolling and swipping , although This requires that your ViewController is embedded in a NavigationController. All child VC of the NavigationController will inherit this behaviour, so you might want to enable/disable it in viewWillAppear.

You could also disable this in your storyboard by setting the navigation controller -> shownavigationbar