arrays - 在 Swift 4 中将 Json 对象转换为数组格式

Question

我有 json

{
  "message": null,
  "data": {
    "Commodity Department": {
      "total": 2,
      "completed": 1,
      "completedWithDue": 0,
      "completedWithOutDue": 1,
      "inProgress": 1,
      "inProgressWithDue": 0,
      "inProgressWithOutDue": 1,
      "statusCounter": null
    }
}

我需要将每个部门的 json 对象转换为数组。当前每个类别值 ("total": 0, "completed": 0, "completedWithDue": 0, "completedWithOutDue": 0, "inProgress": 0, "inProgressWithDue": 0, "inProgressWithOutDue": 0, ) 将采用对象格式。我需要在数组中进行转换并根据类别加载到 Collection View 。截至目前，我正在尝试在下面的代码中解码我的 json

public struct Dashboard: Decodable {
    public let data : [String:Departments]
}

public struct Departments: Decodable {
    public let total, completed, completedWithDue, completedWithOutDue: Int
    public let inProgress, inProgressWithDue, inProgressWithOutDue: Int
}

let dashboard = try? JSONDecoder().decode(Dashboard.self, from: response.data!)

print(dashboard!.data.keys)

Answer 1

您可以通过向结构添加计算属性来创建值数组

public struct Departments: Decodable {
    public let total, completed, completedWithDue, completedWithOutDue: Int
    public let inProgress, inProgressWithDue, inProgressWithOutDue: Int

    var categoryValues: [Int] {get {
        return [total, completed, completedWithDue, completedWithOutDue,
         inProgress, inProgressWithDue, inProgressWithOutDue]
        }
    }
}

或者使用map动态创建数组

dashboard?.data.mapValues{[$0.total, $0.completed, $0.completedWithDue, ...]}