IOS Swift CNContactViewController 导航栏不显示 UINavigation Controller

Question

我一直在研究这个问题，但无法解决任何问题。我有一个 View Controller ，它有效地位于主 Storyboard中。在该 View Controller 内部，当特定操作发生时将接触类型传递给该操作。

该操作为传递的联系人打开一个新的联系人 View Controller ，并允许用户根据 CNContactViewController 与联系人进行交互。一旦用户完成联系人，它将关闭，因为 didCompleteWith 方法，但没有办法退出联系人 Controller ，而不实际创建联系人。

//change to new contact screen
let con = CNMutableContact()
con.givenName = familyComponents[0]
con.familyName = familyComponents[1]

let newEmail = CNLabeledValue(label: "Personal", value: objectComponents[2] 
as NSString)
con.emailAddresses.append(newEmail)
con.phoneNumbers.append(CNLabeledValue(
label: "Home", value: CNPhoneNumber(stringValue: objectComponents[3])))
let newScreen = CNContactViewController(forUnknownContact: con)
newScreen.message = "Made using  app"
newScreen.contactStore = CNContactStore()
newScreen.delegate = self
newScreen.allowsActions = true
let navigationController = UINavigationController(rootViewController: 
newScreen)
self.present(navigationController, animated: true, completion: nil)

我已经尝试了从 navigationItems 到 navigationItems 的一切，在我看来导航栏就在那里，因为可以用这行代码改变它的半透明性:

navigationController.navigationBar.isTranslucent = true

以下方法:

func contactViewController(_ viewController: CNContactViewController, 
didCompleteWith contact: CNContact?) {
    viewController.dismiss(animated: true, completion: nil)
    inContact = false
}
func contactViewController(_ shouldPerformDefaultActionForviewController: 
CNContactViewController, shouldPerformDefaultActionFor property: 
CNContactProperty) -> Bool {
    return false
}

任何建议将不胜感激，我一直在为这个问题苦苦挣扎太久了。谢谢!

已解决:得到它的工作。事实证明这是苹果框架中的一个错误。为了解决这个问题，我只是将它从未知联系人切换到新联系人，显然没有这个错误。部分新代码:

let newScreen = CNContactViewController(forNewContact: con)
newScreen.delegate = self
let navigationController = UINavigationController(rootViewController: newScreen)
self.present(navigationController, animated: true, completion: nil)

谢谢

Answer 1

你能试试这个代码吗

let con = CNMutableContact()
con.givenName = familyComponents[0]
con.familyName = familyComponents[1]

let newEmail = CNLabeledValue(label: "Personal", value: objectComponents[2] 
as NSString)
con.emailAddresses.append(newEmail)
con.phoneNumbers.append(CNLabeledValue(
label: "Home", value: CNPhoneNumber(stringValue: objectComponents[3])))
let unkvc = CNContactViewController(forUnknownContact: con)

                                unkvc.delegate = self
                                unkvc.allowsEditing = true
                                unkvc.allowsActions = true
                                unkvc.title = "Edit Contact"

    self.navigationController?.isNavigationBarHidden = false

    self.navigationController?.navigationItem.hidesBackButton = true

    self.navigationController?.pushViewController(unkvc, animated: false)