无法从UITableViewCell

Question

我有一个tableview，点击一个标签，我想使用popover方法从storyboard中显示一个UIViewController。我在点按识别器选择器中有以下代码

func setupItemNameTapRecognizer(_ label:UILabel) {
    label.isUserInteractionEnabled = true
    let tapRecog = UITapGestureRecognizer(target: self, action: #selector(self.actionItemNameTap(_:)))
    label.addGestureRecognizer(tapRecog)
}
func actionItemNameTap(_ sender:UIView) {
    print("item tap")
    let indexPath = IndexPath(row: sender.tag, section: 0)
    let cell = tableView.cellForRow(at:indexPath )
    self.showPopOverBox(cell: cell!)
}

并在CellForRowAt方法中使用以下代码

 let cell = tableView.dequeueReusableCell(withIdentifier: "ItemContentCell", for: indexPath) as! ItemContentCell
        setupItemNameTapRecognizer(cell.itemName)
        cell.itemName.tag = indexPath.row

        return cell

每当我点击标签时，我都会抛出以下错误，而不会发生什么错误

  

[UITapGestureRecognizer tag]：无法识别的选择器发送到实例0x7fdc1867ee90   2017-05-23 17：36：23.871 InvoiceMaster [71236：14670269] ***由于未捕获的异常终止应用程序＆＃39; NSInvalidArgumentException＆＃39;，原因：＆＃39; - [UITapGestureRecognizer标记]：无法识别

Answer 1

  

    

jsut更改此方法，如下所示

  

 func actionItemNameTap(_ sender: UITapGestureRecognizer) {
  //  let view = sender.view;
   // print("\(view?.tag)")
    print("item tap")
    let indexPath = IndexPath(row: (sender.view?.tag)!, section: 0)
    let cell = tableView.cellForRow(at:indexPath )
    self.showPopOverBox(cell: cell!)  
 }