ContactsUI select contact property

contactPropertySelection.swift

import ContactsUI

class ExampleViewController: UIViewController {
  
  private func dispayContacts() {
    let contactPicker = CNContactPickerViewController()
    contactPicker.delegate = self
    contactPicker.displayedPropertyKeys = [CNContactGivenNameKey, CNContactPhoneNumbersKey]
    contactPicker.predicateForEnablingContact = NSPredicate(format: "phoneNumber.@count > 0")
    contactPicker.predicateForSelectionOfContact = NSPredicate(value: false)
    contactPicker.predicateForSelectionOfProperty = NSPredicate(format: "key == 'phoneNumbers'")
    self.present(contactPicker, animated: true)
  }
  
}

extension ExampleViewController: : CNContactPickerDelegate {

  func contactPicker(_ picker: CNContactPickerViewController, didSelect contactProperty: CNContactProperty) {
    if contactProperty.key == "phoneNumbers",
     let phoneNumber = contactProperty.value as? CNPhoneNumber {
      // contactProperty.contact (the selected contact)
    }
  }

}