I have an app that was written in UIKit. It's too large, and it would be much too time consuming at this point to convert it to SwiftUI.
I want to incorporate the new limited contacts into this app. The way it's currently written everything works fine except for showing the limited contacts in the contact picker.
I have downloaded and gone though the Apple tutorial app but I'm having trouble thinking it through into UIKit. After a couple of hours I decided I need help.
I understand I need to pull the contact IDs of the contacts that are in the limited contacts list. Not sure how to do that or how to get it to display in the picker. Any help would be greatly appreciated.
func requestAccess(completionHandler: @escaping (_ accessGranted: Bool) -> Void)
{
switch CNContactStore.authorizationStatus(for: .contacts)
{
case .authorized:
completionHandler(true)
case .denied:
showSettingsAlert(completionHandler)
case .restricted, .notDetermined:
CNContactStore().requestAccess(for: .contacts) { granted, error in
if granted
{
completionHandler(true)
} else {
DispatchQueue.main.async { [weak self] in
self?.showSettingsAlert(completionHandler)
}
}
}
// iOS 18 only
case .limited:
completionHandler(true)
@unknown default: break
}
}
// A text field that displays the name of the chosen contact
@IBAction func contact_Fld_Tapped(_ sender: TextField_Designable)
{
sender.resignFirstResponder()
// The contact ID that is saved to the Db
getTheCurrentContactID()
let theAlert = UIAlertController(title: K.Titles.chooseAContact, message: nil, preferredStyle: .actionSheet)
// Create a new contact
let addContact = UIAlertAction(title: K.Titles.newContact, style: .default) { [weak self] _ in
self?.requestAccess { _ in
let openContact = CNContact()
let vc = CNContactViewController(forNewContact: openContact)
vc.delegate = self // this delegate CNContactViewControllerDelegate
DispatchQueue.main.async {
self?.present(UINavigationController(rootViewController: vc), animated: true)
}
}
}
let getContact = UIAlertAction(title: K.Titles.fromContacts, style: .default) { [weak self] _ in
self?.requestAccess { _ in
self?.contactPicker.delegate = self
DispatchQueue.main.async {
self?.present(self!.contactPicker, animated: true)
}
}
}
let editBtn = UIAlertAction(title: K.Titles.editContact, style: .default) { [weak self] _ in
self?.requestAccess { _ in
let store = CNContactStore()
var vc = CNContactViewController()
do {
let descriptor = CNContactViewController.descriptorForRequiredKeys()
let editContact = try store.unifiedContact(withIdentifier: self!.oldContactID, keysToFetch: [descriptor])
vc = CNContactViewController(for: editContact)
} catch {
print("Getting contact to edit failed: \(self!.VC_String) \(error)")
}
vc.delegate = self // delegate for CNContactViewControllerDelegate
self?.navigationController?.isNavigationBarHidden = false
self?.navigationController?.navigationItem.hidesBackButton = false
self?.navigationController?.pushViewController(vc, animated: true)
}
}
let cancel = UIAlertAction(title: K.Titles.cancel, style: .cancel) { _ in }
if oldContactID.isEmpty
{
editBtn.isEnabled = false
}
theAlert.addAction(getContact) // Select from contacts
theAlert.addAction(addContact) // Create new contact
theAlert.addAction(editBtn) // Edit this contact
theAlert.addAction(cancel)
let popOver = theAlert.popoverPresentationController
popOver?.sourceView = sender
popOver?.sourceRect = sender.bounds
popOver?.permittedArrowDirections = .any
present(theAlert,animated: true)
}
func requestAccess(completionHandler: @escaping (_ accessGranted: Bool) -> Void)
{
switch CNContactStore.authorizationStatus(for: .contacts)
{
case .authorized:
completionHandler(true)
case .denied:
showSettingsAlert(completionHandler)
case .restricted, .notDetermined:
CNContactStore().requestAccess(for: .contacts) { granted, error in
if granted
{
completionHandler(true)
} else {
DispatchQueue.main.async { [weak self] in
self?.showSettingsAlert(completionHandler)
}
}
}
// iOS 18 only
case .limited:
completionHandler(true)
@unknown default: break
}
}
// MARK: - Contact Picker Delegate
extension AddEdit_Quote_VC: CNContactPickerDelegate
{
func contactPicker(_ picker: CNContactPickerViewController, didSelect contact: CNContact)
{
selectedContactID = contact.identifier
let company: String = contact.organizationName
let companyText = company == "" ? K.Titles.noCompanyName : contact.organizationName
contactNameFld_Outlet.text = CNContactFormatter.string(from: contact, style: .fullName)!
companyFld_Outlet.text = companyText
save_Array[0] = K.AppFacing.true_App
setSaveBtn_AEQuote()
}
}
extension AddEdit_Quote_VC: CNContactViewControllerDelegate
{
func contactViewController(_ viewController: CNContactViewController, shouldPerformDefaultActionFor property: CNContactProperty) -> Bool
{
return false
}
func contactViewController(_ viewController: CNContactViewController, didCompleteWith contact: CNContact?)
{
selectedContactID = contact?.identifier ?? ""
if selectedContactID != ""
{
let company: String = contact?.organizationName ?? ""
let companyText = company == "" ? K.Titles.noCompanyName : contact!.organizationName
contactNameFld_Outlet.text = CNContactFormatter.string(from: contact!, style: .fullName)
companyFld_Outlet.text = companyText
getTheCurrentContactID()
if selectedContactID != oldContactID
{
save_Array[0] = K.AppFacing.true_App
setSaveBtn_AEQuote()
}
}
dismiss(animated: true, completion: nil)
}
}
