ios - 显示错误，因为需要符合协议(protocol)

Question

这是我的代码:-

型号:-

class QuestionListModel: NSObject {

    var optionsModelArray:[OptionsModel] = []

     var question:String!

    init(dictionary :JSONDictionary) {

        guard   let question = dictionary["question"] as? String

             else {
                return

        }

        if let options = dictionary["options"] as? [String]{
            print(options)

            print(options)

            for values in options{

                print(values)

                let optionmodel = NH_OptionsModel(values: values)
                self.optionsModelArray.append(optionmodel)

                         }

        }
              self.question = question
         //   print(self.dataListArray33)
                   }
}

选项型号:-

class OptionsModel: NSObject {
 var values:String?
         init(values:String) {

           self.values = values
           print( self.values)

        }
 }

在 View 模型中:-

var questionsModelArray:Array<NH_QuestionListModel>? = []
     init(withdatasource  newDatasourceModel:NH_QuestionDataSourceModel) {
            datasourceModel = newDatasourceModel

            print(datasourceModel.dataListArray?.count)

             self.questionsModelArray = datasourceModel.dataListArray

            print(self.questionsModelArray)

            print(datasourceModel.dataListArray)
        }


               func numberOfSections() -> Int{

               return (self.questionsModelArray?.count)!

                }

                func titleForHeaderInSection(atindexPath indexPath: IndexPath) -> QuestionListModel {

                    return self.questionsModelArray![indexPath.row]

                }

            func numberOfRowsInSection(indexPath:IndexPath) -> Int {

                if  let questionModel = self.questionsModelArray?[indexPath.section]{

                    return questionModel.optionsModelArray.count

               }

              else{
                  return 0

           }                   
           }


            func datafordisplay(atindex indexPath: IndexPath) -> OptionsModel{

               let questionModel = self.questionsModelArray?[indexPath.section]

                           return questionModel!.optionsModelArray[indexPath.row]

            }

在 ViewController 中:-

func numberOfSections(in tableView: UITableView) -> Int {

        return questionViewModel.numberOfSections()

    }


   func tableView(_ tableView: UITableView, viewForHeaderInSection section: IndexPath) -> UIView? {


        //  let headercell = Bundle.main.loadNibNamed("HeaderCell", owner: self, options: nil)?.first as! NH_questionheader


        let identifier = "HeaderCell"

        var headercell: NH_questionheader! = tableView.dequeueReusableCell(withIdentifier: identifier) as? NH_questionheader

        if headercell == nil {
            tableView.register(UINib(nibName: "NH_questionheader", bundle: nil), forCellReuseIdentifier: identifier)
            headercell = tableView.dequeueReusableCell(withIdentifier: identifier) as? NH_questionheader
        }

        headercell.setReviewData(reviews:questionViewModel.titleForHeaderInSection(atindexPath:section))

        return headercell
    }



    func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {

        return 150

    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: IndexPath) -> Int {

       return questionViewModel.numberOfRowsInSection(indexPath: section)
    }


    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let identifier = "Cell"
        var cell: CellTableViewCell! = tableView.dequeueReusableCell(withIdentifier: identifier) as? CellTableViewCell

        if cell == nil {
            tableView.register(UINib(nibName: "CellTableViewCell", bundle: nil), forCellReuseIdentifier: identifier)
            cell = tableView.dequeueReusableCell(withIdentifier: identifier) as? CellTableViewCell
        }
        cell.contentView.backgroundColor = UIColor.clear

       cell.setOptions(Options1: questionViewModel.datafordisplay(atindex: indexPath))

        print("Section \(indexPath.section), Row : \(indexPath.row)")            

        return cell

    }

我的 json 文件:-

{
    "data":[
              {
              "question": "Gender",
              "options": ["Male","Female"]

              },
              {
              "question": "How old are you",
              "options": ["Under 18","Age 18 to 24","Age 25 to 40","Age 41 to 60","Above 60"]
            }, {
            "question": "I am filling the Questionnaire for?",
            "options": ["Myself","Mychild","Partner","Others"]
            }
              ]      
}

这是我的数据。所以我需要在索引单元格中显示标题和选项中的问题。但是显示为错误，因为 UITableview 需要符合 UITableviewDataSource 协议(protocol)。

还显示索引超出范围的错误。怎么办......

Answer 1

我认为您没有为 View Controller 分配数据源。因此，请在 View Controller 的 ViewDidLoad 中分配它

 override func viewDidLoad() {
    super.viewDidLoad()
    self.yourtableview.delegate = self
    self.yourtableview.dataSource = self
    // Do any additional setup after loading the view.
}