Swift -- 判断ScrollView向左向右滑动

func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
        hideMuneViewAnimation()
        let translatedPoint = scrollView.panGestureRecognizer.translation(in: scrollView)
        if translatedPoint.x < 0 {
            // 右滑
            print("+++")
        }
        if translatedPoint.x > 0 {
            // 左化
            print("---")
        }
    }