JSON編碼/解碼一般的Swift CNContact對象

我一直在嘗試以通用的方式對對象進行JSON編碼/解碼Swift的CNContact（我的意思是我想確定在運行時對象擁有哪些屬性，我想要硬編碼它的屬性），但是我沒有設法這樣做。我的問題是：是否有一種方法可以在Swift 4中實現這種行爲，如果是的話，該怎麼做？JSON編碼/解碼一般的Swift CNContact對象

來源

2017-08-01 mmarkus

在JSON從聯繫人添加到多個領域？ –

我想序列化和反序列化每個CNContact對象持有的所有屬性......是否回答你的問題？ – mmarkus

否，CNContact根據official documentation並沒有改變，所以它不符合Codable協議，這僅僅是一個Encodeable & Decodable typealias。你可以看到目前符合Encodable和Decodable的類的列表，並且在這裏看到以及CNContact不在其中。

但是，您可以編寫CNContact的擴展名，使其符合上述協議。

下面是如何在Swift3中使用JSONSerialization框架編碼CNContact對象的示例。請注意，這只是一個示例，所以我沒有解析所有可能的字段，並且在此實現中，如果某個值不存在於CNContact對象中，則該關鍵字在JSON中也不存在。另外，解碼器功能沒有完全實現，但是如果您檢查編碼器的工作方式，則可以輕鬆實現解碼器功能。

JSON鍵的名稱也隨着結構隨意選擇，所以你可以改變其中的任何一個。

下面的一段代碼是一個完整的工作操場文件，所以如果你願意，你可以自己測試一下。

import Contacts 

let contact = CNMutableContact() 
contact.birthday = DateComponents(calendar: Calendar.current,year: 1887, month: 1, day: 1) 
contact.contactType = CNContactType.person 
contact.givenName = "John" 
contact.familyName = "Appleseed" 

contact.imageData = Data() // The profile picture as a NSData object 

let homeEmail = CNLabeledValue(label:CNLabelHome, value: NSString(string: "[email protected]")) 
let workEmail = CNLabeledValue(label:CNLabelWork, value: NSString(string: "[email protected]")) 
contact.emailAddresses = [homeEmail, workEmail] 

contact.phoneNumbers = [CNLabeledValue(label:CNLabelPhoneNumberiPhone, value:CNPhoneNumber(stringValue:"(408) 555-0126"))] 

let homeAddress = CNMutablePostalAddress() 
homeAddress.street = "1 Infinite Loop" 
homeAddress.city = "Cupertino" 
homeAddress.state = "CA" 
homeAddress.postalCode = "95014" 
contact.postalAddresses = [CNLabeledValue(label:CNLabelHome, value:homeAddress)] 

func encodeContactToJson(contact: CNContact)->Data?{ 
    var contactDict = [String:Any]() 
    if let birthday = contact.birthday?.date { 
     let df = DateFormatter() 
     df.dateFormat = "yyyy-MM-dd" 
     contactDict["birthday"] = df.string(from: birthday) 
    } 
    contactDict["givenName"] = contact.givenName 
    contactDict["familyName"] = contact.familyName 
    if let imageData = contact.imageData { 
     contactDict["image"] = imageData.base64EncodedString() 
    } 
    if contact.emailAddresses.count > 0 { 
     var emailAddresses = [String:String]() 
     for (index, emailAddress) in contact.emailAddresses.enumerated() { 
      emailAddresses[emailAddress.label ?? "email\(index)"] = (emailAddress.value as String) 
     } 
     contactDict["emailAddresses"] = emailAddresses 
    } 
    if contact.phoneNumbers.count > 0 { 
     var phoneNumbers = [String:String]() 
     for (index, phoneNumber) in contact.phoneNumbers.enumerated() { 
      phoneNumbers[phoneNumber.label ?? "phone\(index)"] = phoneNumber.value.stringValue 
     } 
     contactDict["phoneNumbers"] = phoneNumbers 
    } 
    if contact.postalAddresses.count > 0 { 
     var postalAddresses = [String:String]() 
     for (index, postalAddress) in contact.postalAddresses.enumerated() { 
      postalAddresses[postalAddress.label ?? "postal\(index)"] = (CNPostalAddressFormatter.string(from: postalAddress.value, style: .mailingAddress)) 
     } 
     contactDict["postalAddresses"] = postalAddresses 
    } 
    return try? JSONSerialization.data(withJSONObject: contactDict) 
} 

func decodeContactsJson(jsonData: Data)->CNContact?{ 
    if let jsonDict = (try? JSONSerialization.jsonObject(with: jsonData)) as? [String:Any] { 
     let contact = CNMutableContact() 
     print(jsonDict) 
     return contact as CNContact 
    } else { 
     return nil 
    } 
} 

if let jsonContact = encodeContactToJson(contact: contact) { 
    print(decodeContactsJson(jsonData: jsonContact) ?? "Decoding failed") 
} else { 
    print("Encoding failed") 
}

來源

2017-08-01 11:02:37

非常感謝。我完全沒有經歷過Swift開發的經驗，您能否提供一個CNContact這樣的擴展的示例代碼？ – mmarkus

我目前沒有安裝Xcode9測試版，所以我無法編譯'Swift4'代碼，我不想爲您提供可能無法編譯的代碼示例。不過，如果你願意，我可以給你一個小例子，介紹如何使用'Swift3'中已有的'JSONSerialization'框架來完成它。 –

我真的很感激：:) – mmarkus

嘗試使用簡單與聯繫選擇。

func contactViewController(_ viewController: CNContactViewController, didCompleteWith contact: CNContact?) { 

    var name = "" 
    var email = "" 
    var mobile = "" 
    var address = "" 
    var companyname = "" 
    var jobtitle = "" 
    var organization = "" 
    var workaddress = "" 
    var worknumber = "" 
    var personalurl = "" 
    var companyurl = "" 
    var otherurl = "" 
    var othernumber = "" 
    var otheraddress = "" 
    var homeemail = "" 
    var workemail = "" 
    var otheremail = "" 
    var dataAll = NSMutableArray() 

    if contact != nil 
    { 
     dataAll = NSMutableArray() 



     if (contact?.isKeyAvailable(CNContactGivenNameKey))! { 
      let name2 = contact?.familyName 
      name = (contact?.givenName)! + " " + name2! 

      UserDefaults.standard.set(name, forKey: "name") 


     } 



     if (contact?.isKeyAvailable(CNContactOrganizationNameKey))! 
     { 
      companyname = (contact?.organizationName)! 


      //var dic : NSDictionary = [:] 
      if companyname != "" { 
       let dic : [String : AnyObject] = ["name":companyname as AnyObject, 
                "type":"companyname" as AnyObject, 
                "typeof":"companyname" as AnyObject] 
       dataAll.add(dic) 
      } 



     } 

     let designation = contact?.jobTitle 

     if (designation?.isEmpty)! 
     { 

     } 
     else 
     { 
      jobtitle = designation! 
      //let dic : [String : AnyObject] = ["designation":jobtitle as AnyObject] 

      let dic : [String : AnyObject] = ["name":jobtitle as AnyObject, 
               "type":"designation" as AnyObject, 
               "typeof":"designation" as AnyObject 
      ] 
      dataAll.add(dic) 

     } 
     if (contact?.isKeyAvailable(CNContactPhoneNumbersKey))!{ 

      if (contact?.phoneNumbers.count == 0) 
      { 

      } 
      else 
      { 

       for phoneNumber:CNLabeledValue in (contact?.phoneNumbers)! { 
        let number = phoneNumber.value 

        let number2 = number.stringValue 


        let lable :String = CNLabeledValue<NSString>.localizedString(forLabel: phoneNumber.label!) 


        let dic : [String : AnyObject] = ["name":number2 as AnyObject, 
                 "type":lable as AnyObject, 
                 "typeof":"phonenumber" as AnyObject] 


        dataAll.add(dic) 


        if number2 != "" 
        { 

        } 


        if lable == "home" 
        { 
         if number2 == "" 
         { 

         } 
         else 
         { 
          mobile = number.stringValue 


          let number2 = String(mobile.digitsOnly())! 



         } 


        } 
        if lable == "work" 
        { 
         if number2 == "" 
         { 

         } 
         else 
         { 
          worknumber = number.stringValue 

         } 


        } 
        if lable == "mobile" 
        { 
         if number2 == "" 
         { 

         } 
         else 
         { 
          othernumber = number.stringValue 


         } 


        } 

       } 

      } 
     } 


     if (contact?.isKeyAvailable(CNContactEmailAddressesKey))! { 

      if (contact?.emailAddresses.count == 0) 
      { 

      } 
      else 
      { 

       for emaiadd:CNLabeledValue in (contact?.emailAddresses)! { 

        let name2 = (emaiadd.value as String) as String 

        if name2 != "" 
        { 
         UserDefaults.standard.set(emaiadd.value as String, forKey: "mainemail") 
        } 

        let lable :String = CNLabeledValue<NSString>.localizedString(forLabel: emaiadd.label!) 

        // let dic : [String : AnyObject] = [lable:emaiadd.value as String as AnyObject] 
        let dic : [String : AnyObject] = ["name":name2 as AnyObject, 
                 "type":lable as AnyObject, 
                 "typeof":"email" as AnyObject] 

        dataAll.add(dic) 


        if lable == "home" 
        { 

         if name2 == "" 
         { 

         } 
         else 
         { 
          email = emaiadd.value as String 


         } 

        } 
        if lable == "work" 
        { 
         if name2 == "" 
         { 

         } 
         else 
         { 
          workemail = emaiadd.value as String 

         } 

        } 
        if lable == "other" 
        { 
         if name2 == "" 
         { 

         } 
         else 
         { 
          otheremail = emaiadd.value as String 

         } 

        } 

       } 
      } 

     } 



     if (contact?.isKeyAvailable(CNContactPostalAddressesKey))! { 

      for addres:CNLabeledValue in (contact?.postalAddresses)! { 

       let addre = addres.value 
       let addre2 = addre.street 

       let lable :String = CNLabeledValue<NSString>.localizedString(forLabel: addres.label!) 


       let dic : [String : AnyObject] = ["name":addre2 as AnyObject, 
                "type":lable as AnyObject, 
                "typeof":"address" as AnyObject] 

       dataAll.add(dic) 

       if lable == "home" 
       { 
        if addre2 == "" 
        { 

        } 
        else 
        { 
         address = addre.street 



        } 
       } 

       if lable == "work" 
       { 
        if addre2 == "" 
        { 

        } 
        else 
        { 
         workaddress = addre.street 

        } 

       } 
       if lable == "other" 
       { 
        if addre2 == "" 
        { 

        } 
        else 
        { 
         otheraddress = addre.street 


        } 
       } 

       print(lable + (addre.street)) 
      } 


     } 

     if (contact?.isKeyAvailable(CNContactUrlAddressesKey))! { 

      for urladd:CNLabeledValue in (contact?.urlAddresses)! { 

       let url2 = (urladd.value as String) as String 

       let lable :String = CNLabeledValue<NSString>.localizedString(forLabel: urladd.label!) 


       let dic : [String : AnyObject] = ["name":url2 as AnyObject, 
                "type":lable as AnyObject, 
                "typeof":"url" as AnyObject] 

       dataAll.add(dic) 

       if lable == "home" 
       { 
        if url2 == "" 
        { 

        } 
        else 
        { 
         personalurl = urladd.value as String 



        } 
       } 
       if lable == "work" 
       { 
        if url2 == "" 
        { 

        } 
        else 
        { 
         companyurl = urladd.value as String 


        } 

       } 
       if lable == "other" 
       { 
        if url2 == "" 
        { 

        } 
        else 
        { 
         otherurl = urladd.value as String 



        } 

       } 


      } 

     } 

     if (contact?.isKeyAvailable(CNContactImageDataKey))! { 

      let image = contact?.imageData 

      let utf8str = image?.base64EncodedString() 


     } 



     dataArr = [["code": "Mobile", "title": othernumber],["code": "Work Number", "title": worknumber],["code": "OtherMobile", "title": number2],["code": "Email", "title": email],["code": "WorkEmail", "title": workemail],["code": "OtherEmail", "title": otheremail],["code": "Address", "title": address],["code": "Work Address", "title": workaddress],["code": "OtherAddress", "title": otheraddress],["code": "Company Name", "title": companyname],["code": "Designation", "title": jobtitle],["code": "Personal Website", "title": personalurl],["code": "Company Website", "title": companyurl],["code": "Other Website", "title": otherurl]] 
    } 

}

這個代碼在按鈕動作你要

let contactPickerViewController = CNContactPickerViewController() 

     contactPickerViewController.delegate = self 

     present(contactPickerViewController, animated: true, completion: nil)

來源

2017-08-01 13:19:16

如果可能的話，在使用Swift的時候，避免使用具有原生Swift替代品的基礎版本的數據結構（例如'NSMutableArray'，你應該使用'Array '）。此外，您應該重新格式化您的代碼，因爲使用所有不必要的空格來閱讀是非常困難的。你的回答實際上並沒有回答這個問題，因爲你只返回一個字典，而不是實際的'JSON'對象，並且在這個問題中沒有提及'CNContactPickerViewController'。 –

JSON編碼/解碼一般的Swift CNContact對象

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