我有下面的代码,设置了一个垂直scrollview我的问题是视图控制器内的视图没有准确地响应滑动手势。例如,在此滚动视图中,bottomVc包含左右滑动的轻扫手势。当这个视图控制器在另一个项目中被隔离时,它完美地工作,但是当它在下面的滚动视图内时,滑动手势不起作用。我想知道如何解决这个问题,以便我的viewcontollers可以在滚动视图中处理滑动手势。此外,仅供参考,控制其他视图控制器的代码与滑动手势一起位于单独的文件中。 代码:
进口的UIKitUIScrollView正在吃我的轻扫手势Swift
class VerticalScrollViewController: UIViewController, SnapContainerViewControllerDelegate {
var topVc: UIViewController!
var middleVc: UIViewController!
var bottomVc: UIViewController!
var scrollView: UIScrollView!
class func verticalScrollVcWith(middleVc: UIViewController,
topVc: UIViewController?=nil,
bottomVc: UIViewController?=nil) -> VerticalScrollViewController {
let middleScrollVc = VerticalScrollViewController()
middleScrollVc.topVc = topVc
middleScrollVc.middleVc = middleVc
middleScrollVc.bottomVc = bottomVc
return middleScrollVc
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view:
setupScrollView()
}
func setupScrollView() {
scrollView = UIScrollView()
scrollView.isPagingEnabled = true
scrollView.showsVerticalScrollIndicator = false
scrollView.bounces = false
let view = (
x: self.view.bounds.origin.x,
y: self.view.bounds.origin.y,
width: self.view.bounds.width,
height: self.view.bounds.height
)
scrollView.frame = CGRect(x: view.x, y: view.y, width: view.width, height: view.height)
self.view.addSubview(scrollView)
let scrollWidth: CGFloat = view.width
var scrollHeight: CGFloat
if topVc != nil && bottomVc != nil {
scrollHeight = 3 * view.height
middleVc.view.frame = CGRect(x: 0, y: 0, width: view.width, height: view.height)
topVc.view.frame = CGRect(x: 0, y: view.height, width: view.width, height: view.height)
bottomVc.view.frame = CGRect(x: 0, y: 2 * view.height, width: view.width, height: view.height)
addChildViewController(topVc)
addChildViewController(middleVc)
addChildViewController(bottomVc)
scrollView.addSubview(topVc.view)
scrollView.addSubview(middleVc.view)
scrollView.addSubview(bottomVc.view)
topVc.didMove(toParentViewController: self)
middleVc.didMove(toParentViewController: self)
bottomVc.didMove(toParentViewController: self)
//scrollView.contentOffset.y = middleVc.view.frame.origin.y
scrollView.contentOffset.y = topVc.view.frame.origin.y
} else if topVc == nil {
scrollHeight = 2 * view.height
middleVc.view.frame = CGRect(x: 0, y: 0, width: view.width, height: view.height)
bottomVc.view.frame = CGRect(x: 0, y: view.height, width: view.width, height: view.height)
addChildViewController(middleVc)
addChildViewController(bottomVc)
scrollView.addSubview(middleVc.view)
scrollView.addSubview(bottomVc.view)
middleVc.didMove(toParentViewController: self)
bottomVc.didMove(toParentViewController: self)
scrollView.contentOffset.y = 0
} else if bottomVc == nil {
scrollHeight = 2 * view.height
topVc.view.frame = CGRect(x: 0, y: 0, width: view.width, height: view.height)
middleVc.view.frame = CGRect(x: 0, y: view.height, width: view.width, height: view.height)
addChildViewController(topVc)
addChildViewController(middleVc)
scrollView.addSubview(topVc.view)
scrollView.addSubview(middleVc.view)
topVc.didMove(toParentViewController: self)
middleVc.didMove(toParentViewController: self)
scrollView.contentOffset.y = middleVc.view.frame.origin.y
} else {
scrollHeight = view.height
middleVc.view.frame = CGRect(x: 0, y: 0, width: view.width, height: view.height)
addChildViewController(middleVc)
scrollView.addSubview(middleVc.view)
middleVc.didMove(toParentViewController: self)
}
scrollView.contentSize = CGSize(width: scrollWidth, height: scrollHeight)
scrollView.delaysContentTouches = false
}
func outerScrollViewShouldScroll() -> Bool {
if scrollView.contentOffset.y < middleVc.view.frame.origin.y || scrollView.contentOffset.y > middleVc.view.frame.origin.y {
return false
} else {
return true
}
}
}
'UIGestureRecognizerDelegate'应该有你需要的方法。具体如下:https://developer.apple.com/documentation/uikit/uigesturerecognizerdelegate/1624208-gesturerecognizer – PeejWeej