UserDefaults.standard.object(key) always nil

Question

In my case UserDefaults.standard.object() always returns nil. I don't understand why. Please, help. I use swift 4.2 and Xcode 9.x. My project has multiple files: swift and objC. If I set value from objC code (NSUserDefaults...), then all works fine. Value exist.

My class B at Swift-file:

import Foundation
@objc class Preferences : NSObject{

    /**
     Сохранение в локальном хранилище данных
     :param: key ключ (название параметра
     :param: value значение - любой тип данных
     */
    public static func saveValue (key:String, value:Any) -> (){
        UserDefaults.standard.set(value, forKey: key)
        UserDefaults.standard.synchronize()
    }

    /**
     Получить данные из локального хранилища
     :param: key ключ (название параметра)
     :returns: Any значение - любой тип данных
     */
    public static func getValue (key:String) -> (Any?){
        let val = UserDefaults.standard.object(forKey: key)
        return val // ------- always NIL
//        if let type1 = val as? String{
//            return type1
//        }else if let type2 = val as? Int{
//            return type2
//        }else if let type3 = val as? Double{
//            return type3
//        }else{
//            return val;
//        }
    }
}

From objC class I calling first swift-func.

objC (check values):

if (![[Preferences getValueWithKey:@"surname_"] isEqualToString:@""]){
    [surnameF setText:[Preferences getValueWithKey:@"surname_"]];
    [nameF setText:[Preferences getValueWithKey:@"name_"]];
    [patronymicF setText:[Preferences getValueWithKey:@"patronymic_"]];
}

objC (set values by calling swift-class):

[DataManager saveDataWithSurname:surname name:name patronymic:patronymic];

Class A at Swift-file:

@objc class DataManager : NSObject{

public static func saveData(surname: String, name: String, patronymic: String){
    //Сохранить локально
    Preferences.saveValue(key: surname, value1: "surname_")
    Preferences.saveValue(key: name, value1: "name_")
    Preferences.saveValue(key: patronymic, value1: "patronymic_")

    let sCommand = SimpleCommand()
    sCommand.command = "setUserData"
    var userData = [String:String]()
    userData["user_surname"] = surname
    userData["user_name"] = name
    userData["user_patronymic"] = patronymic
    sCommand.params["userData"] = userData

    NetHelper.sendJSONPureRequest(
        sCommand: sCommand,
        onSuccess: { (sAnswer) in
            EasyDialog.showAlert(title: "Уведомление", message: sAnswer.messageText!)
    }) { (errMsg) in
        EasyDialog.showAlert(title: "Ошибка", message: errMsg)
    }
}

Answer 1

Stupid mistake:

public static func saveData(surname: String, name: String, patronymic: String){
    //Сохранить локально
    Preferences.saveValue(key: surname, value1: "surname_")
    Preferences.saveValue(key: name, value1: "name_")
    Preferences.saveValue(key: patronymic, value1: "patronymic_")

Key <-> Value. :)