UIPickerView的UITapGestureRecognizer并不会触发

Question

我UITableViewCell UIPickerView。我想抓住1个元素的录制事件（所以不是 pickerView(_:didSelectRow:inComponent:)所做的）

这是我的班级：

class PickerTableViewCell: UITableViewCell {

    @IBOutlet var pickerView:UIPickerView!

    private var gestureRecognizer:UITapGestureRecognizer!

    override func awakeFromNib() {
        gestureRecognizer = UITapGestureRecognizer(target: self, action: "didTap:")
        gestureRecognizer.cancelsTouchesInView = false
        pickerView.addGestureRecognizer(gestureRecognizer)
    }

    func didTap(gestureRecognizer:UITapGestureRecognizer) {
        print("tap")
    }

    override func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWithGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }
}

正如其他回复中所建议的那样，我覆盖了UIGestureRecognizerDelegate方法shouldRecognizeSimultaneouslyWithGestureRecognizer otherGestureRecognizer以返回true，但它没有帮助。

Answer 1

我需要添加设置UITapGestureRecognizer的委托。

gestureRecognizer.delegate = self

完成了这项工作，因为我已经超越了shouldRecognizeSimultaneouslyWithGestureRecognizer otherGestureRecognizer！