UITableView didSelectRow 返回错误的行索引值 [英] UITableView didSelectRow returns wrong row index value

问题描述

当我选择一行时，它返回一个更大或更小的行索引值，但永远不会是正确的值.如上图我选择了 14 返回 16.

When I select a row it returns a row index value bigger or smaller but never the correct value. As on the picture I selected 14 returned 16.

这是我使用的代码:

  @IBOutlet var cheatTable: UITableView!

  let cheetSheet = ["one", "two", "three", "four", "five"]
  override func viewDidLoad() {
    super.viewDidLoad()
    cheatTable.delegate = self
    cheatTable.dataSource = self
  }

  func numberOfSections(in tableView: UITableView) -> Int {
    return 1
  }

  func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return 30
  }

  func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "reuseID")!
    let text:String = "\(indexPath.row)"
    cell.textLabel?.text = text
    return cell
  }

  func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
    guard let currentCell = tableView.cellForRow(at: indexPath) else {
      return
    }
    let alertController = UIAlertController(title: "Hint", message: "You have selected row \(indexPath.row).", preferredStyle: .alert)
    let alertAction = UIAlertAction(title: "Ok", style: .cancel, handler: nil)
    alertController.addAction(alertAction)
    present(alertController, animated: true, completion: nil)
  }

我该怎么做才能获得正确的行索引?谢谢！

What could I do to get the correct row index? Thanks!

推荐答案

检查你的委托名称不是 didDeselectRowAt 它是 didSelectRowAt

check your delegate name is not didDeselectRowAt it is didSelectRowAt

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    tableView.deselectRow(at: indexPath, animated: true)


    let alertController = UIAlertController(title: "Hint", message: "You have selected row \(indexPath.row).", preferredStyle: .alert)
    let alertAction = UIAlertAction(title: "Ok", style: .cancel, handler: nil)
    alertController.addAction(alertAction)
    present(alertController, animated: true, completion: nil)
}

按照你的代码，我创建了示例项目

as per your code follow I created the sample project

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