这是我的模型类
class UserRoot : Mappable {
var success : Bool!
var user : UserDetails!
var error = ""
required init?(map: Map) {
}
func mapping(map: Map) {
success <- map["success"]
user <- map["user"]
error <- map["error"]
}
}
成功登录后,我想将此数据保存在用户默认值上,这样当用户不必再次提供登录凭据时。这是我的代码
class Default : NSObject{
static func saveToSharedPrefs(user: UserDetails!) {
let d = UserDefaults.standard
if user != nil {
d.set(Mapper().toJSONString(user, prettyPrint: false) , forKey: "USERDETAILS")
} else {
d.set(nil, forKey: "USERDETAILS")
}
d.synchronize()
}
}
最佳答案
Make sure your model class is inherited from
NSObject
class otherwise it will crash at run time.
存储数据:
let data = NSKeyedArchiver.archivedData(withRootObject: <Your model class>)
UserDefaults.standard.set(data, forKey: "userDetails")
检索和转换数据
if let data = UserDefaults.standard.value(forKey: "userDetails") as? Data {
if let dict = NSKeyedUnarchiver.unarchiveObject(with: data) as? <Your model class> {
print(dict)
}
}
关于ios - 如何在 swift 4 中将 json 数据保存在 userdefaults 上,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/49555520/