匹配CNcontact和数字寻找朋友Swift 3

do 
{
    try contactStore.enumerateContactsWithFetchrequest(CNContactFetchrequest(keysToFetch: [CNContactGivenNameKey,CNContactFamilyNameKey,CNContactMiddlenameKey,CNContactEmailAddressesKey,CNContactPhonenumbersKey])) {
        (contact,cursor) -> Void in

        self.results.append(contact)
    }
}
catch{
    print("Handle the error please")
}

理想情况下,人们会预期CNContactFetchrequest的谓词来完成这项工作,但是(仍然; argh)只接受用CNContact定义的一个狭窄的谓词列表(例如CNContact preDicateForContacts(matchingName :)或preDicateForContacts(withIdentifiers :).它不会’甚至接受基于块的NSPreDicate.

所以,你必须枚举,自己寻找比赛,例如

let request = CNContactFetchrequest(keysToFetch: [
    CNContactGivenNameKey as CNKeyDescriptor,CNContactFamilyNameKey as CNKeyDescriptor,CNContactMiddlenameKey as CNKeyDescriptor,CNContactEmailAddressesKey as CNKeyDescriptor,CNContactPhonenumbersKey as CNKeyDescriptor
])

do {
    try contactStore.enumerateContacts(with: request) { contact,stop in
        for phone in contact.phonenumbers {
            // look at `phone.value.stringvalue`,e.g.

            let phonenumberDigits = String(phone.value.stringvalue.characters.filter { String($0).rangeOfCharacter(from: CharacterSet.decimalDigits) != nil })

            if phonenumberDigits == "8885551212" {
                self.results.append(contact)
                return
            }
        }
    }
} catch let enumerateError {
    print(enumerateError.localizedDescription)
}

关于匹配“数字用户ID”,我不知道该标识符是什么(它是联系人框架标识符还是数字自己的标识符？).