ios - 是否可以禁用滑动手势并仅使平移手势在 ScrollView 中工作？

Question

我使用 UIScrollView 来显示一些图像。我发现滑动手势和平移手势都有效。是否可以一次只使平移手势起作用？

我尝试了这段代码:

for gestureRecognizer in scrollView.gestureRecognizers ?? [] {
    if gestureRecognizer is UISwipeGestureRecognizer) {
        gestureRecognizer.isEnabled = false
    }
}

这不起作用。我打印 scrollView.gestureRecognizers!，获取手势列表:

UIScrollViewDelayedTouchesBeganGestureRecognizer

UIScrollViewPanGestureRecognizer

_UIDragAutoScrollGestureRecognizer

UIScrollViewPagingSwipeGestureRecognizer

我尝试了UIScrollViewPagingSwipeGestureRecognizer:

if gestureRecognizer is UIScrollViewPagingSwipeGestureRecognizer) {
    gestureRecognizer.isEnabled = false
}

它说使用未声明的类型“UIScrollViewPagingSwipeGestureRecognizer”。

Answer 1

如果我理解正确的话......也许你可以使用以下UIScrollViewDelegate方法:

func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
    targetContentOffset.pointee = scrollView.contentOffset
}