/// 解決UIScrollView拖動手勢和其他手勢沖突問題
extension UIScrollView: UIGestureRecognizerDelegate {
    public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        if (gestureRecognizer.state != UIGestureRecognizer.State.possible) {
            return true
        }
        return false
    }
}

參考文章: https://blog.csdn.net/average17/article/details/79182587