如何仅使用 CNContactViewController 来创建新联系人？ (Swift)

Question

我有一个应用程序需要添加联系人。为此，我想使用 ContactsUI 框架中的 CNContactViewController(forNewContact: nil)。

我的实现方法如下

class myClass: UITableViewController, CNContactViewControllerDelegate {
    // ...
    @objc fileprivate func addTapped() {
        print("add tapped")

        let createContactcontroller = CNContactViewController(forNewContact: nil)
        controller.delegate = self

        navigationController?.pushViewController(controller, animated: true)
    }

    func contactViewController(_ viewController: CNContactViewController, didCompleteWith contact: CNContact?) {
        // Service.shared.addContact(contact: contact)
    }

}

但是有几个问题我解决不了：

动画看起来很慢。
当用户完成创建联系人并完成点击后，配置文件的 CNContactViewController（如在联系人应用程序中）被显示，而不是仅仅返回到 tableViewController。我该如何修改它？

我收到以下错误：

2019-11-16 10:29:48.480636+0100 Flashback[11688:541742] [Snapshotting] Snapshotting a view (0x7fc76481a420, _UIButtonBarStackView) that has not been rendered at least once requires afterScreenUpdates:YES. 2019-11-16 10:29:48.482425+0100 Flashback[11688:541742] [Snapshotting] Snapshotting a view (0x7fc76481d020, _UIButtonBarStackView) that has not been rendered at least once requires afterScreenUpdates:YES. 2019-11-16 10:29:48.484897+0100 Flashback[11688:541742] [Snapshotting] Snapshotting a view (0x7fc76481d5c0, _UIButtonBarStackView) that has not been rendered at least once requires afterScreenUpdates:YES. 2019-11-16 10:29:48.488071+0100 Flashback[11688:541742] [Snapshotting] Snapshotting a view (0x7fc76481d9f0, _UIButtonBarStackView) that has not been rendered at least once requires afterScreenUpdates:YES. 2019-11-16 10:29:48.489883+0100 Flashback[11688:541742] [Snapshotting] Snapshotting a view (0x7fc7626228e0, _UIButtonBarStackView) that has not been rendered at least once requires afterScreenUpdates:YES. 2019-11-16 10:29:48.491904+0100 Flashback[11688:541742] [Snapshotting] Snapshotting a view (0x7fc7626102d0, _UIButtonBarStackView) that has not been rendered at least once requires afterScreenUpdates:YES.

Answer 1

您使用的这个视图控制器有误。

您不能将其推送到现有的视图控制器上。相反，您使用 CNContactViewController 作为其根视图控制器实例化 UINavigationController，并且 present 导航控制器作为呈现的视图控制器。然后，您必须在 contactViewController(_:didCompleteWith:).

的实现中自行关闭显示的导航控制器

还要注意这个错误，它使这个视图控制器基本上无法使用：

Keyboard overlaying action sheet in iOS 13.1 on CNContactViewController

如何仅使用 CNContactViewController 来创建新联系人？ (Swift)

How to use CNContactViewController just for creating new contacts? (Swift)

uitableview

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contactsui

ios13