uitableview - UItableviewcell中的pangesture，表格滚动无法快速工作

Question

我想在 UItableviewCell 内左右滑动 UIview，我已经使用 UIPanGestureRecognizer 来实现这一点，下面是附加的源代码。但是，当我尝试滚动 UItableview 时，我的 Uiview 可以上下移动并且无法滚动到 UItableviewcell 即 Superview。谁能告诉我如何管理？提前致谢？

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

    return 10

}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCell(withIdentifier: "CardSwipeTVCell") as! CardSwipeTVCell


    let tapGesture : UIPanGestureRecognizer!
    tapGesture = UIPanGestureRecognizer(target: self, action: #selector(ViewController.tapEdit(_:)))
    cell.cardView.addGestureRecognizer(tapGesture!)
    cell.cardView.tag = indexPath.row
    tapGesture!.delegate = self


    cell.selectionStyle = .none
    return cell


}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {


}

func tapEdit(_ recognizer: UIPanGestureRecognizer)
{
    print(recognizer.view?.tag as Any)

    let sender = recognizer.view?.tag as Any

    let indexPath = IndexPath(row: sender as! Int, section: 0)
    let cell = self.cardTableView.cellForRow(at: indexPath) as? CardSwipeTVCell


    cell?.cardView.backgroundColor = UIColor.black

    let card = recognizer.view!
    let point = recognizer.translation(in: view)
    card.center = CGPoint(x: (cell?.center.x)! + point.x, y: (cell?.center.y)! + point.y)

    if recognizer.state == UIGestureRecognizerState.ended
    {
        UIView.animate(withDuration: 0.3, animations: {

            card.center = (cell?.center)!

        })

    }

}

另一个问题是当我点击第二个单元格时，我的视图消失了？您的帮助将不胜感激。

Answer 1

override func gestureRecognizerShouldBegin(gestureRecognizer: UIGestureRecognizer) -> Bool {
    if let panGestureRecognizer = gestureRecognizer as? UIPanGestureRecognizer {
        //let translation = panGestureRecognizer.translation(in: superview!)
        let translation = panGestureRecognizer.translationInView(superview)
        if fabs(translation.x) > fabs(translation.y) {
            return true
        }
        return false
    }
    return false
}

在您的类中添加上述委托方法。这将在 tableview 视图垂直滚动时停止 pangesture。