如何在swift4中將CNPhoneNumber轉換為字符串？

Question

我正在使用此代碼從聯系人應用程序獲取聯系號碼，但是當我想在標簽中顯示號碼時，我收到此警告並且不起作用：從“CNPhoneNumber”轉換為不相關的類型“字符串”總是失敗

func contactPicker(_ picker: CNContactPickerViewController, didSelect contacts: [CNContact]) {
    contacts.forEach {(contact) in
        for number in contact.phoneNumbers{
            let phone = number.value
            print(phone)
            numberLabel.text = phone as! String
        }
    }
}

Answer 1

嘗試 ：

if let phone = number.value as? CNPhoneNumber {
    print(phone.stringValue)
} else {
   print("number.value not of type CNPhoneNumber")
}

也看看CNContact , CNPhoneNumber

Answer 2

您可以將 PhoneNumber 值設為CNLabeledValue 。

for number in contact.phoneNumbers{
    if let number = phoneNumber.value as? CNPhoneNumber, let phoneLabel = phoneNumber.label {
      let phoneLocalizedLabel = CNLabeledValue.localizedStringForLabel(phoneLabel)
          numberLabel.text = "\(phoneLocalizedLabel) : \(number.stringValue)"
    }
}

Answer 3

func getContact(){
    let numeroinc = self.numero.text!
    let contactStore = CNContactStore()
    var numeroScodeCuntry = ""
    let keys = [
        CNContactFormatter.descriptorForRequiredKeys(for: .fullName),
        CNContactPhoneNumbersKey,
        CNContactEmailAddressesKey
        ] as [Any]
    let request = CNContactFetchRequest(keysToFetch: keys as! [CNKeyDescriptor])
    for char in UserDefaults.standard.string( forKey: "cc" )!.count ... numeroinc.count-1 {
        let index = numeroinc.index(numeroinc.startIndex, offsetBy: char)
        numeroScodeCuntry.append(numeroinc[index])
    }
    numeroScodeCuntry = formattedNumber2(number:numeroScodeCuntry)
    print("numeroScodeCuntry", numeroScodeCuntry)
    do {
        try contactStore.enumerateContacts(with: request){
            (contact, stop) in
            // Array containing all unified contacts from everywhere
            self.contacts.append(contact)
            for phoneNumber in contact.phoneNumbers {
                
                if let number = phoneNumber.value as? CNPhoneNumber, let label = phoneNumber.label {
                    let localizedLabel = CNLabeledValue<CNPhoneNumber>.localizedString(forLabel: label)
                    print("\(contact.givenName) \(contact.familyName) tel:\(localizedLabel) -- \(number.stringValue), email: \(contact.emailAddresses)")
                    print("numeroScodeCuntry",numeroScodeCuntry ,"number.stringValue" , number.stringValue)
                    let numberContact = self.formattedNumber2(number:number.stringValue)
                    if (numeroScodeCuntry.isEqualToString(find: numberContact)){
                        self.numero.text = contact.givenName
                        print("contact.givenName",contact.givenName)
                        self.isNumber = false
                        break
                    }else{
                         self.isNumber = true
                    }
                    
                }
                
            }
        }
        print(self.contacts)
    } catch {
        print("unable to fetch contacts")
    }
}

}