CNContactViewController navigation bar colour not working properly - ios

Question

CNContactViewController navigation bar colour not appearing when i click Create New Contact option. See my screens for 1st time it's ok, but when i click Create New Contact i'm not getting navigation bar colour and not visible back button.
1st screen
2nd screen
In older versions
My code is
if #available(iOS 9.0, *) {
let store = CNContactStore()
let contact = CNMutableContact()
let homePhone = CNLabeledValue(label: CNLabelHome, value: CNPhoneNumber(stringValue : self.mobile ?? ""))
contact.phoneNumbers = [homePhone]
let controller = CNContactViewController(forUnknownContact : contact)
controller.contactStore = store
controller.delegate = self
if #available(iOS 10.0, *) {
DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + Double(Int64(0.1 * Double(NSEC_PER_SEC))) / Double(NSEC_PER_SEC), execute: {
//Set status bar background colour
let statusBar = UIApplication.shared.value(forKeyPath: "statusBarWindow.statusBar") as? UIView
statusBar?.backgroundColor = UIColor.red
//Set navigation bar subView background colour
for view in controller.navigationController?.navigationBar.subviews ?? [] {
view.tintColor = UIColor.white
view.backgroundColor = UIColor.red
}
})
}
navigationController?.pushViewController(controller, animated: true)
}
And one more is by default phone number: [phone]

Answer 1

I would suggest to display a CNConctactViewController within a UINavigationController in Popover Modal Presentation style, and add a few button to return to the main application. This implementation seams not trivial as reported by rumours over the net.
Let me share a few pieces of my code (swift 5).
The major class:
class MyViewController: UITableViewController, UIPopoverPresentationControllerDelegate {
var contactViewController = CNContactViewController()
...
#objc func dismissContactViewController() {
contactViewController.dismiss(animated: true, completion: nil)
}
}
The extension:
extension MyViewController: CNContactViewControllerDelegate {
func openCNContactViewController(willAppearWith: CNContact, type: ContactType) {
switch type {
case .forContact:
contactViewController = CNContactViewController(for: willAppearWith)
contactViewController.allowsEditing = false
break
case .forNewContact:
contactViewController = CNContactViewController(forNewContact: willAppearWith)
contactViewController.allowsEditing = true
break
case .forUnknowContact:
contactViewController = CNContactViewController(forUnknownContact: willAppearWith)
contactViewController.allowsEditing = true
break
}
contactViewController.allowsActions = true
contactViewController.contactStore = globalContactStore
contactViewController.hidesBottomBarWhenPushed = true
contactViewController.delegate = self
// define the button (or select a default one)
let button = UIButton(type: .custom)
button.setTitleColor(self.view.tintColor, for: .normal)
button.setTitle("My app name", for: .normal)
button.addTarget(self, action: #selector(dismissContactViewController), for: .touchUpInside)
let closeButton = UIBarButtonItem(customView: button)
closeButton.style = .plain
// add flexible space
let flexibleSpace = UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.flexibleSpace, target: nil, action: nil)
// add to toolbar
contactViewController.setToolbarItems([flexibleSpace, closeButton, flexibleSpace], animated: false)
let navigationVC = UINavigationController(rootViewController: contactViewController)
// show toolbar
navigationVC.setToolbarHidden(false, animated: false)
// set navigation presentation style
navigationVC.modalPresentationStyle = .popover
// present view controller
self.present(navigationVC, animated: true, completion: nil)
}
The result