ios - 单击swift 4中的单选按钮时如何获取 TableView 索引？

Question

我正在用 swift 4 做项目。我在 tableview cell 中创建了 radiobutton 类。单击哪个 radio button 时，我想获取 cell index。请帮助我。

编辑:我刚刚添加了我的整个代码。我无法解决我的问题。所有的代码如下。我创建了一个单选按钮类并给它一个单选按钮功能。我尝试将单选按钮集成到 TableView 中，并在单击按钮时获取单元格的索引，如下所示，但它给出了 libc++abi.dylib: terminating with uncaught exception of type NSException 错误。

import UIKit

class TVCIsGuvenligi: UITableViewCell {

lazy var radioButtonGroup: [RadioButton] = {
    return [
        btnRadioEvet,
        btnRadioHayir,
        ]
}()

@IBOutlet var lblSoru: UILabel!
@IBOutlet var lblSoruAyrinti: UILabel!
@IBOutlet var lblEvet: UILabel!
@IBOutlet var lblHayır: UILabel!

@IBOutlet var btnRadioEvet: RadioButton!
@IBAction func btnRadioEvet(_ sender: RadioButton)
{
    let indexPath = IndexPath.init(row: sender.tag, section: 0)
    updateRadioButton(sender)
    print("index \(indexPath)")
}

@IBOutlet var btnRadioHayir: RadioButton!
@IBAction func btnRadioHayir(_ sender: RadioButton)
{
    let indexPath = IndexPath.init(row: sender.tag, section: 0)
    updateRadioButton(sender)
    print("index \(indexPath)")
}

override func awakeFromNib() {
    super.awakeFromNib()


}

override func setSelected(_ selected: Bool, animated: Bool) {
    super.setSelected(selected, animated: animated)

    // Configure the view for the selected state
}

func updateRadioButton(_ sender: RadioButton){
    radioButtonGroup.forEach { $0.isSelected = false }
    sender.isSelected = !sender.isSelected

  }

 }


ViewController.swift

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCell(withIdentifier: "cellIs", for: indexPath) as! TVCIsGuvenligi

    cell.lblSoru.text = myTitle[indexPath.row]
    cell.lblSoruAyrinti.text = myTitle[indexPath.row]

    cell.btnRadioEvet.tag = (indexPath.row)
    cell.btnRadioEvet.addTarget(self, action: #selector(getter: cell.btnRadioEvet), for: UIControlEvents.touchUpInside)

    print("current cell tag \(cell.btnRadioEvet.tag)")

    return cell
   }

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

    //getting the index path of selected row
    let indexPath = tableView.indexPathForSelectedRow

    //getting the current cell from the index path
    let currentCell = tableView.cellForRow(at: indexPath!)! as! TVCIsGuvenligi

    //getting the text of that cell.
    let currentItem = currentCell.lblSoru.text

    print("current item \(currentItem)")
 }

Answer 1

使用，

currentCell.radioButton.tag = indexPath.row

并使用这个标签获取单选按钮点击的索引