在 Swift 中按电话号码获取联系人

Question

我正在访问所有包含姓名和电话号码的联系人。我在单个 CNContact 中获得了包含多个电话号码的 CNContact 数组，这是预期的。

func fetchContacts() {
    let store = CNContactStore()
    let keysToFetch = [
        CNContactFormatter.descriptorForRequiredKeys(for: .fullName),
        CNContactPhoneNumbersKey as any CNKeyDescriptor
    ]
    let fetchRequest = CNContactFetchRequest(keysToFetch: keysToFetch)
    var result: [CNContact] = []
    
    do {
        try store.enumerateContacts(with: fetchRequest) { contact, stop in
            if contact.phoneNumbers.count > 0 {
                result.append(contact)
            }
        }
        print(result)
    } catch let error {
        print("Fetching contacts failed: \(error)")
    }
}

输出：

[
    Contact(fullName : "John Appleseed", phoneNumbers: ["888-555-5512", "888-555-1212"]),
    Contact(fullName : "Kate Bell",      phoneNumbers: ["[phone]", "[phone]"])
]

但我想要实现的是具有单个电话号码的 CNContact 数组。

[
    Contact(fullName : "John Appleseed", phoneNumber: "888-555-5512"),
    Contact(fullName : "John Appleseed", phoneNumber: "888-555-1212"),
    Contact(fullName : "Kate Bell",      phoneNumber: "[phone]"),
    Contact(fullName : "Kate Bell",      phoneNumber: "[phone]")
]

在这种情况下，什么 NSPrediction 会起作用？

注意：忽略UI错误，已经实现的权限，希望在读取联系人之前（获取请求）而不是在读取联系人之后实现。

Answer 1

如果您想要自定义输出格式，您将需要自定义类型

比如说

struct Contact {
    let name: String
    let phoneNumber: String
}

然后在循环中转换为该类型

var resultContact: [Contact] = []
do {
    try store.enumerateContacts(with: fetchRequest) { contact, stop in
        if contact.phoneNumbers.count > 0 {
            contact.phoneNumbers.forEach { phoneNumber in
                let phoneNumber = phoneNumber.value.stringValue
                resultContact.append(Contact(name: contact.givenName + " " + contact.familyName, phoneNumber: phoneNumber))
            }
        }
    }
    print(resultContact)
} catch let error {
    print("Fetching contacts failed: \(error)")
}