ios - UITableViewCell : UITapGestureRecognizer unrecognized selector sent to instance error

Question

我在UITableViewCell中的UILabel上有一个UITapGestureRecognizer，我添加了所述UITapGestureRecognizer的目标作为 View Controller ，如下所示:

class Cell: UITableViewCell {

    @IBOutlet weak var label: UILabel!
    override func awakeFromNib() {
        super.awakeFromNib()
        let tap1 = UITapGestureRecognizer(target: ViewController(), action:  "selectLabel:")
        label.addGestureRecognizer(tap)
    }
 }

class ViewController: UIViewController,UITableViewDataSource, UITableViewDelegate{

    fun selectLabel(gesture: UITapGestureRecognizer){
         //animate some view in custom cell
    }
 }

但是，我收到“UITapGestureRecognizer 无法识别的选择器已发送到实例”错误。

Answer 1

在cellForRowAtIndexPath上设置手势。

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("CellIdentifier", forIndexPath: indexPath) as! Cell
    let tap1 = UITapGestureRecognizer(target: self, action:  "selectLabel:")
    cell.label.addGestureRecognizer(tap1)
    return cell
  }