Swift 从联系人框架中获取联系人不起作用

在我的应用程序中，我创建了一个CNContact并将其保存到contacts store，同时还保存了联系人的标识符。在应用程序的另一部分中，我使用标识符获取该联系人，但在iOS 13中不起作用。（这在iOS 12上确实有效

注意：我知道iOS 13上有联系人备注键权限，但我没有获取该字段

以下是我创建联系人的方式：

func createPlaceholderContactFor(telephoneNumber: String) {
    guard
        placeholderContactIdentifier == nil,
        CNContactStore.authorizationStatus(for: .contacts) == .authorized
    else {
        return
    }

    // Creating a mutable object to add to the contact
    let contact = CNMutableContact()
    contact.imageData = UIImage(named: "MainIcon")?.jpegData(compressionQuality: 1.0)
    contact.givenName = placeholderDefaultName
    contact.familyName = ""
    contact.phoneNumbers = [CNLabeledValue(
        label:CNLabelPhoneNumberiPhone,
        value:CNPhoneNumber(stringValue:telephoneNumber))]

    // Saving the newly created contact
    let saveRequest = CNSaveRequest()
    saveRequest.add(contact, toContainerWithIdentifier:nil)

    do {
        let store = CNContactStore()
        try store.execute(saveRequest)

        if contact.isKeyAvailable(CNContactIdentifierKey) {
            print(contact.identifier) //this is printed on console and contact appears on phone app.
            placeholderContactIdentifier = contact.identifier
        }
    } catch {
        print(error.localizedDescription)
    }
}

private func placeholderContact() -> CNContact? {
    guard
        let identifier = placeholderContactIdentifier,
        CNContactStore.authorizationStatus(for: .contacts) == .authorized
        else { return nil }

    let predicate: NSPredicate = CNContact.predicateForContacts(withIdentifiers: [identifier])

    let keysToFetch = [
        CNContactIdentifierKey as CNKeyDescriptor,
        CNContactGivenNameKey as CNKeyDescriptor,
        CNContactFamilyNameKey as CNKeyDescriptor,
        CNContactPhoneNumbersKey as CNKeyDescriptor
    ]

    do {
        let store = CNContactStore()

        let contacts = try store.unifiedContacts(matching: predicate, keysToFetch: keysToFetch)
        return contacts.first
    }
    catch {
        print(error.localizedDescription)

        return nil
    }
}

这是我获取联系人的方式：

func createPlaceholderContactFor(telephoneNumber: String) {
    guard
        placeholderContactIdentifier == nil,
        CNContactStore.authorizationStatus(for: .contacts) == .authorized
    else {
        return
    }

    // Creating a mutable object to add to the contact
    let contact = CNMutableContact()
    contact.imageData = UIImage(named: "MainIcon")?.jpegData(compressionQuality: 1.0)
    contact.givenName = placeholderDefaultName
    contact.familyName = ""
    contact.phoneNumbers = [CNLabeledValue(
        label:CNLabelPhoneNumberiPhone,
        value:CNPhoneNumber(stringValue:telephoneNumber))]

    // Saving the newly created contact
    let saveRequest = CNSaveRequest()
    saveRequest.add(contact, toContainerWithIdentifier:nil)

    do {
        let store = CNContactStore()
        try store.execute(saveRequest)

        if contact.isKeyAvailable(CNContactIdentifierKey) {
            print(contact.identifier) //this is printed on console and contact appears on phone app.
            placeholderContactIdentifier = contact.identifier
        }
    } catch {
        print(error.localizedDescription)
    }
}

private func placeholderContact() -> CNContact? {
    guard
        let identifier = placeholderContactIdentifier,
        CNContactStore.authorizationStatus(for: .contacts) == .authorized
        else { return nil }

    let predicate: NSPredicate = CNContact.predicateForContacts(withIdentifiers: [identifier])

    let keysToFetch = [
        CNContactIdentifierKey as CNKeyDescriptor,
        CNContactGivenNameKey as CNKeyDescriptor,
        CNContactFamilyNameKey as CNKeyDescriptor,
        CNContactPhoneNumbersKey as CNKeyDescriptor
    ]

    do {
        let store = CNContactStore()

        let contacts = try store.unifiedContacts(matching: predicate, keysToFetch: keysToFetch)
        return contacts.first
    }
    catch {
        print(error.localizedDescription)

        return nil
    }
}

---

我还尝试使用

let contact=try store.unifiedContact（with identifier:identifier，keystefetch:keystefetch）

而不是

let contacts=try store.unifiedContacts（matching:predicate，keystefetch:keystefetch）

但这会引发一个错误。

打印（error.localizedDescription）调用的输出是什么？如果在调试器中设置了异常断点，代码将在何处停止？@GeneZ.Ragan当我调用

store.unifiedContact（带标识符：keystefech:）

错误是：

更新的记录不存在

打印（error.localizedDescription）调用的输出是什么？如果在调试器中设置了异常断点，代码在哪里停止？@GeneZ.Ragan当我调用

store.unifiedContact（带标识符：keystefech:）

错误是：

更新的记录不存在