[英]Save selected items in array of objects to UserDefaults in swift 4
I have decoded my Json to structure and now I have array of objects that each objects has some values so I want when user select item in collection View the selected object in array append to the array of objects in UserDefaults I read similar questions so I used this Function Below But it won't work 我已经解码了Json的结构,现在我有了一个对象数组,每个对象都有一些值,所以我希望当用户选择集合中的项目时查看数组中的所选对象追加到UserDefaults中的对象数组中,我读过类似的问题,所以我使用了下面的这个功能,但是不起作用
@objc func likeOrDislike (_ sender : UIButton!) {
let arrays = UserDefaults.standard.value(forKey: "Liked") as? [ListsModel.ResultValue]
print(arrays as Any)
var items = arrays
let item = self.adv.resultValue[sender.tag]
if arrays != nil {
if items!.contains(where: {($0.id == item.id)}) {
items!.filter({($0.id == item.id)})
} else {
items!.append(item)
}
} else {
items = [item]
}
UserDefaults.standard.setValue(items, forKey: "Liked")
UserDefaults.standard.synchronize()
}
and here is the model that I use for decode 这是我用来解码的模型
public class ListsModel {
struct Response : Decodable {
var resultValue : [ResultValue]
}
struct ResultValue : Decodable {
let id : String?
let title : String?
let user_id : String?
let username : String?
let user_image : String?
let release_date : String?
let start_date : String?
let salary : String?
let salary_id : String?
let work_field_id : String?
let adv_type_id : String?
let work_field : String?
let description : String?
let adv_base_id : String?
let is_spec : String?
let status : String?
let p_expire_date : String?
}
}
通过stringify将所有模型对象转换为字符串,然后存储到用户默认对象并在您要使用的位置使用。
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