class CustomScrollView: UIScrollView {
    override func touchesShouldCancel(in view: UIView) -> Bool {
        if view is UIButton { // 如果是特定视图(如按钮)
            return false // 不取消触摸事件
        }
        return super.touchesShouldCancel(in: view)
    }
}

class NonCancellingScrollView: UIScrollView {
    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        super.touchesBegan(touches, with: event)
        // 防止滚动时取消触摸
    }
    
    override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?) {
        // 空实现，不调用super
    }
}

class ViewController: UIViewController, UIGestureRecognizerDelegate {
    @IBOutlet weak var scrollView: UIScrollView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        scrollView.panGestureRecognizer.delegate = self
    }
    
    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, 
                          shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }
}

scrollView.delaysContentTouches = false