Question

{
  "3": {
    "title": "something"
  },
  "28": {
    "title": "something else"
  }
}

如何使用ObjectMapper将此json转换为Content对象数组？

struct Content: Mappable {
    var id: String? //Expected value is 3, 28
    var title: String? //Expected value is "something", "something else"
}

提前致谢。

Answer 1

我认为你正在寻找这样的事情：

JSON - 型号：

let content = Mapper<Content>().map(JSONString)

模型 - JSON：

let json = Mapper().toJSONString(content, prettyPrint: true)

在您使用它之前，您需要将Content Model更改为以下内容：

struct Content: Mappable {
    var id: String? //Expected value is 3, 28
    var title: String? //Expected value is "something", "something else"

    required init?(_ map: Map) {

    }

    // Mappable
    func mapping(map: Map) {
        id <- map["id"]
        title <- map["title"]
    }
}

Answer 2

在Swift 3中：首先从这个词典中获取所有键，如此

keysArray = Array(dict.keys)

现在循环通过这个键Array＆amp;你会得到这本词典中的所有键，如

for i in 0..<keysArray.count {
    if let key = keysArray[i] as? String {
       //get your key here
        if let singleObject = dict[key] as? [String: Any] {
           if let value = singleObject["title"] as? String {
              //get you value
              // get both key & value. Now map it. Hope you get it.
           }
        }
    }
}

希望它有所帮助。

ObjectMapper：字典键作为映射对象中的值

2 个答案: