尝试使用NSKeyedArchiver将自定义对象保存在UserDefaults中

Question

我想将自定义类对象保存在userdefault中。我正在尝试这样保存它：

class func setModel<T: Hashable>(model: T, key: String) {
    let encodedData: Data = NSKeyedArchiver.archivedData(withRootObject: model)
    UserDefaults.standard.set(encodedData, forKey: key)
    UserDefaults.standard.synchronize()
}

但是应用程序在此方法的第一行崩溃，并显示错误：

NSForwarding：警告：类'DronesApp_Worker.WorkerProfileResponse'的对象0x600003944000没有实现methodSignatureForSelector：-前面有麻烦无法识别的选择器-[DronesApp_Worker.WorkerProfileResponse replacementObjectForKeyedArchiver：]

我的自定义对象类如下：

class WorkerProfileResponse: Codable, Hashable, Mappable{

    static func == (lhs: WorkerProfileResponse, rhs: WorkerProfileResponse) -> Bool {
        return lhs.id == rhs.id
    }

    override var hash: Int{
        return self.id!
    }

    var id, is_logged_in, last_login, last_active: Int?
    var username, email, mobile_number: String?
    var categoryName: String?
    var userCategories: [SelectedCategory]?
    var userSubCategories: [SelectedSubCategory]?
    var biometricToken: String?
    var accessToken: AccessToken?
    var userStatus: UserStatus?
    var userProfile: UserProfile?

    required init(map: Map) {

    }

    func mapping(map: Map) {
        id <- map["id"]
        is_logged_in <- map["is_logged_in"]
        last_login <- map["last_login"]
        last_active <- map["last_active"]
        biometricToken <- map["biometricToken"]
        username <- map["username"]
        email <- map["email"]
        mobile_number <- map["mobile_number"]
        accessToken <- map["accessToken"]
        userStatus <- map["userStatus"]
        userCategories <- map["userCategories"]
        userSubCategories <- map["userSubCategories"]
        userProfile <- map["userProfile"]
    }
}

Answer 1

使用JSONEncoder将数据保存到UserDefaults。虚拟代码：

class YourClassName: Codable {
//Your properties here

func saveInPreference() {
        do {
            let jsonEncoder = JSONEncoder()
            UserDefaults.standard.set(try jsonEncoder.encode(Your object here), forKey: "Write UserDefaultKey here")
            UserDefaults.standard.synchronize()
        }
        catch {
            print(error.localizedDescription)
        }
    }
}

希望有帮助！