如何快速获取嵌套表视图中的主表视图索引

Question

我是 swift 新手，我无法在嵌套的 tableview 按钮单击上获取主 tableview 索引

我的代码是这样的

extension Section2QuestionsViewController: UITableViewDataSource, UITableViewDelegate
{
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return arrFinancialYears.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        
        let strCellID = "Section2QuestionCell"
        var cell = tableView.dequeueReusableCell(withIdentifier: strCellID) as? Section2QuestionCell
        if cell == nil
        {
            tableSection2.register(Section2QuestionCell.self, forCellReuseIdentifier: strCellID)
            cell = tableSection2.dequeueReusableCell(withIdentifier: strCellID) as? Section2QuestionCell
        }
        
        let dictAppStats =  arrFinancialYears[indexPath.row] as? [String:Any]
        cell?.lblQuestionTitle.text = "\(indexPath.row + 1). \(dictAppStats?["question"] as? String ?? "")"

        cell?.arrCourses = [Any]()
        cell?.arrCourses = dictAppStats?["options"] as? [Any] ?? []
        
        cell?.tableInsideHeightConstraints.constant = CGFloat(28 * (cell?.arrCourses.count ?? 0))
        
        cell?.tableInside.reloadData()
        

        
        return cell!
    }
}

表格视图内

extension Section2QuestionCell: UITableViewDataSource, UITableViewDelegate
{
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return arrCourses.count
    }
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        
        let cell = tableView.dequeueReusableCell(withIdentifier: "InsideSection2QuestionCell", for: indexPath) as! InsideSection2QuestionCell
        
        cell.selectionStyle = .none
        let dictFeeStats = arrCourses[indexPath.row] as? [String:Any]
        cell.lblOption.text = dictFeeStats?["option_value"] as? String
        cell.btnOption.tag = indexPath.item
        cell.btnOption.addTarget(self, action: #selector(btnOptionClick), for: .touchUpInside)
        cell.lblAnswerKey.text = dictFeeStats?["answer_key"] as? String
        cell.lblQuestionId.text = dictFeeStats?["question_id"] as? String
        cell.lblAnswerId.text = dictFeeStats?["option_id"] as? String

        return cell
    }
}

按钮点击

@objc func btnOptionClick(_ sender: UIButton)
    {
        let index = IndexPath(row: sender.tag, section: 0)
        let cell: InsideSection2QuestionCell = tableInside.cellForRow(at: index) as! InsideSection2QuestionCell

        let QuestionId = cell.lblQuestionId.text
        let AnswwerId = cell.lblAnswerId.text
        
        print(QuestionId as Any)
        print(AnswwerId as Any)
        
        Globalnewdict = ["option":AnswwerId as Any,"question":QuestionId as Any]
        Globalindexvalue = sender.tag
        
        NotificationCenter.default.post(name: Notification.Name(rawValue: "disconnectPaxiSockets"), object: nil)

       tableInside.reloadData()
    }

我无法在按钮上获取主 tableview 索引路径值。有什么方法可以在单击按钮时获取主 tableview 索引路径值。

请帮忙 提前致谢！

Answer 1

您可以在 Section2QuestionCell 中添加一个索引路径对象

var parentTableIndexPath : IndexPath!

然后在cellForRowAt tableview委托方法中设置值

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let strCellID = "Section2QuestionCell"
    var cell = tableView.dequeueReusableCell(withIdentifier: strCellID) as? Section2QuestionCell
    if cell == nil {
        tableSection2.register(Section2QuestionCell.self, forCellReuseIdentifier: strCellID)
        cell = tableSection2.dequeueReusableCell(withIdentifier: strCellID) as? Section2QuestionCell
    }
    cell.parentTableIndexPath = indexPath
    let dictAppStats =  arrFinancialYears[indexPath.row] as? [String:Any]
    cell?.lblQuestionTitle.text = "\(indexPath.row + 1). \(dictAppStats?["question"] as? String ?? "")"
    cell?.arrCourses = [Any]()
    cell?.arrCourses = dictAppStats?["options"] as? [Any] ?? []
    cell?.tableInsideHeightConstraints.constant = CGFloat(28 * (cell?.arrCourses.count ?? 0))
    cell?.tableInside.reloadData()
    return cell!
}

由于 btnOptionClick() 属于同一类，您可以在按钮操作中直接访问父表索引路径。

Answer 2

在

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        
        let strCellID = "Section2QuestionCell"
        var cell = tableView.dequeueReusableCell(withIdentifier: strCellID) as? Section2QuestionCell
        if cell == nil
        {
            tableSection2.register(Section2QuestionCell.self, forCellReuseIdentifier: strCellID)
            cell = tableSection2.dequeueReusableCell(withIdentifier: strCellID) as? Section2QuestionCell
        }
        
        let dictAppStats =  arrFinancialYears[indexPath.row] as? [String:Any]
        cell?.lblQuestionTitle.text = "\(indexPath.row + 1). \(dictAppStats?["question"] as? String ?? "")"

        cell?.arrCourses = [Any]()
        cell?.arrCourses = dictAppStats?["options"] as? [Any] ?? []
        
        cell?.tableInsideHeightConstraints.constant = CGFloat(28 * (cell?.arrCourses.count ?? 0))
         cell?.tableInside.tag = indexPath.row
        cell?.tableInside.reloadData()
        

        
        return cell!
    }

在按钮点击中

@objc func btnOptionClick(_ sender: UIButton)
    {
        let index = IndexPath(row: sender.tag, section: 0)
        let cell: InsideSection2QuestionCell = tableInside.cellForRow(at: index) as! InsideSection2QuestionCell

        let QuestionId = cell.lblQuestionId.text
        let AnswwerId = cell.lblAnswerId.text
        
        print(QuestionId as Any)
        print(AnswwerId as Any)
        
        Globalnewdict = ["option":AnswwerId as Any,"question":QuestionId as Any]
        Globalindexvalue =  tableInside.tag
        
        NotificationCenter.default.post(name: Notification.Name(rawValue: "disconnectPaxiSockets"), object: nil)

       tableInside.reloadData()
    }

在 cellForRowAt 中，我将 indexpath.row 设置为 tableview.tag。 然后在按钮上单击我将 tableview.tag 设置为全局索引路径。