CNContactFormatter需要哪些密钥?

时间:2015-10-28 06:08:54

标签: formatting ios9 cncontact cncontactformatter cncontactstore

我尝试使用新的CNContactFormatter格式化联系人的姓名。看起来,我没有获取联系人所需的所有名称属性。

Terminating app due to uncaught exception 'CNPropertyNotFetchedException', reason: 'A property was not requested when contact was fetched.'

有谁知道哪些是必需的?我试着在其他几个人中抓住以下内容而没有运气:

        CNContactNamePrefixKey,
        CNContactGivenNameKey,
        CNContactFamilyNameKey,
        CNContactMiddleNameKey, 
        CNContactPreviousFamilyNameKey,
        CNContactNameSuffixKey,
        CNContactNicknameKey,
        CNContactPhoneticGivenNameKey,
        CNContactPhoneticMiddleNameKey,
        CNContactPhoneticFamilyNameKey,
        CNContactOrganizationNameKey,
        CNContactDepartmentNameKey,
        CNContactJobTitleKey,

CNContactFomatter Class Referencefetching method's documentation都没有任何线索。

谢谢!

2 个答案:

答案 0 :(得分:17)

我在WWDC Session 223(从幻灯片74开始)中找到了这个,当我遇到同样的问题时,这对我有用。在联系人选择调用中使用CNContactFormatter.descriptorForRequiredKeysForStyle ....例如:

let contactStore = CNContactStore()
let predicate = CNContact.predicateForContactsMatchingName("John")
let foundContacts = try contactStore.unifiedContactsMatchingPredicate(predicate, keysToFetch: [CNContactFormatter.descriptorForRequiredKeysForStyle(.FullName)]
for contact in foundContacts {
            print(CNContactFormatter.stringFromContact(contact, style: .FullName))
}

答案 1 :(得分:1)

class func descriptorForRequiredKeys()

用于获取从联系人创建vCard数据所需的所有联系人密钥。

https://developer.apple.com/reference/contacts/cncontactvcardserialization

示例:

let containerResults =  try contactStore.unifiedContacts(matching: fetchPredicate, keysToFetch:[CNContactVCardSerialization.descriptorForRequiredKeys()])