ios - 如何使用 CNContactPickerViewController 获取地址和联系人？

Question

我正在尝试使用更现代的 CNContactPickerViewController 来选择联系人。如果联系人有多个地址，我希望用户只能选择其中一个地址。如果专门选择了一个地址，我还想获得 CNContact 对象。

我可以使用已弃用的 ABPeoplePickerNavigationControllerDelegate 来执行此操作，其中此委托(delegate)函数可用:

func peoplePickerNavigationController(_ peoplePicker: ABPeoplePickerNavigationController, didSelectPerson person: ABRecord, property: ABPropertyID, identifier: ABMultiValueIdentifier)

但是，当使用 CNContactPickerViewController 时，只有这个相关的委托(delegate)函数可用:

func contactPicker(_ picker: CNContactPickerViewController, didSelect contactProperty: CNContactProperty)

请注意，没有返回 CNContact 对象。我在 contactProperty 中获取了 CNPostalAddress，但我没有收到所属联系人的记录。

这是我在 ABPeoplePickerNavigationController 中使用的代码:

    let peoplePicker = ABPeoplePickerNavigationController()

    peoplePicker.peoplePickerDelegate = self

    peoplePicker.displayedProperties = [NSNumber(value: kABPersonAddressProperty as Int32), NSNumber(value: kABPersonBirthdayProperty as Int32)]

    peoplePicker.predicateForSelectionOfPerson = NSPredicate(format: "postalAddresses.@count <= 1")

    peoplePicker.modalPresentationStyle = UIModalPresentationStyle.currentContext

    self.present(peoplePicker, animated: true, completion: nil)

...这是 CNContactPickerViewController 的代码:

    let contactPicker = CNContactPickerViewController()

    contactPicker.delegate = self

    contactPicker.displayedPropertyKeys = [CNContactPostalAddressesKey, CNContactBirthdayKey]

    contactPicker.predicateForSelectionOfContact = NSPredicate(format: "postalAddresses.@count <= 1")

    contactPicker.modalPresentationStyle = UIModalPresentationStyle.currentContext

    self.present(contactPicker, animated: true, completion: nil)

所以，对我来说，新的 Contacts Framework 中似乎不再提供相同的功能，但我正在检查这里是否遗漏了什么。

Answer 1

Note that there is no CNContact object returned. I get the CNPostalAddress in the contactProperty, but I don't receive the record of the owning contact.

CNContact 对象可以从 CNContactProperty 的 contact 属性中获取，所以……

However, when using CNContactPickerViewController, only this relevant delegate function is available:

func contactPicker(_ picker: CNContactPickerViewController, didSelect contactProperty: CNContactProperty)

…实现这个委托(delegate)方法可以让你做你想做的事。但是您要确保您没有实现其他委托(delegate)方法，例如:

func contactPicker(CNContactPickerViewController, didSelect: CNContact)

这将在选择联系人(而不是其属性)时关闭选择器。