如何在swift中获取嵌套表视图中的主表视图索引

Question

我是swift的新手，无法在嵌套的表视图按钮上获得主表视图索引，请单击

我的代码像这个

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!
}
}

内部表视图

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()
}

我无法获取按钮上的主表视图索引路径值。是否有任何方法可以在单击按钮时获取主表视图索引路径值。

请帮忙提前感谢！

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表视图委托方法中设置值

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btOptionClick((在同一个类中，您可以在按钮操作中直接访问父表Index路径。

Answer 2

在中

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

@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。然后点击按钮，我将tableview.tag设置为全局索引路径。