问将向上滑动手势识别器添加到模式视图

EN

class VC2: UIViewController {
    

    override func viewDidLoad() {
        super.viewDidLoad()
        let direction: UISwipeGestureRecognizer.Direction = .up
        let gesture = UISwipeGestureRecognizer(target: self, action: #selector(swipeAction(sender:)))
        gesture.direction = direction
        gesture.delegate = self
        self.view.addGestureRecognizer(gesture)
    }
    
    @objc func swipeAction(sender: UISwipeGestureRecognizer) {
       print(sender.direction)
     }
}

extension VC2: UIGestureRecognizerDelegate {
    func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }

    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRequireFailureOf otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return false
    }

    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldBeRequiredToFailBy otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }

    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }
}