从 JSON 文件的数据模型创建 table 视图部分

Question

我已经解析了一个 JSON 文件，现在我正在尝试创建一个带有部分的 table 视图。该部分是数据模型中的字典。

import Foundation

struct ActionResult: Codable {
    let data: [ActionElement]
}

struct ActionElement: Codable {
    let actionID: Int
    let actionItem: String
    let actionGoal: ActionGoal
    let actionImage: String
    let actionBenefit: ActionBenefit
    let actionSavings: Int
    let actionType: ActionType
    let actionDescription, actionTips: String
    let actionInformationURL: String
    let actionSponsorURL: String

    enum CodingKeys: String, CodingKey {
        case actionID = "ActionID"
        case actionItem = "ActionItem"
        case actionGoal = "ActionGoal"
        case actionImage = "ActionImage"
        case actionBenefit = "ActionBenefit"
        case actionSavings = "ActionSavings"
        case actionType = "ActionType"
        case actionDescription = "ActionDescription"
        case actionTips = "ActionTips"
        case actionInformationURL = "ActionInformationURL"
        case actionSponsorURL = "ActionSponsorURL"
    }
}

enum ActionBenefit: String, Codable {
    case costs = "Costs"
    case education = "Education"
    case environment = "Environment"
    case health = "Health"
}

enum ActionGoal: String, Codable {
    case cleanEnergy = "Clean Energy"
    case cleanWater = "Clean Water"
    case climateAction = "Climate Action"
    case economicGrowth = "Economic Growth"
    case goodHealth = "Good Health"
    case noPoverty = "No Poverty"
    case promoteEquality = "Promote Equality"
    case qualityEducation = "Quality Education"
    case responsibleConsumption = "Responsible Consumption"
    case zeroHunger = "Zero Hunger"
}

enum ActionType: String, Codable {
    case sticky = "Sticky"
    case todoe = "Todoe"
}

typealias Action = [ActionElement]

现在我正在尝试创建我的 table 视图部分，但出现以下错误：“[ActionElement]”类型的值没有成员 'actionGoal'

两个问题：我该如何解决这个问题？什么是了解更多关于数据模型和 table 视图的好资源？

这是我正在编写的代码：

    var result: ActionResult?
    var index = 0
    
       
    override func viewDidLoad() {
        super.viewDidLoad()
        parseJSON()
        
        
    }
    
    // Table View Sections
    
    
    override func numberOfSections(in tableView: UITableView) -> Int {
            return result?.data.count ?? 0
            
          }

        override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
            return result?.data.actionGoal
       }

Answer 1

您忘记访问数组元素

override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
        return result?.data[section].actionGoal.rawValue
   }

Answer 2

我相信您需要索引数据，然后使用原始值（字符串），因为 ActionGoal 是一个枚举。

override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
    return result?.data[section].actionGoal.rawValue
}

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