我在UIPageViewController中嵌入的UITableviewController遇到了麻烦……系统无法区分向左滑动以更改页面和向滑动滑动以删除UITableView中的项目。这个特定的UITableViewController恰好在PageViewController的最后一页上,因此,由于向左滑动并没有真正做任何事情(向右滑动),我可以禁止PageViewController在当前页面== 3时检测滑动吗?棘手的部分是我只想要忽略向左滑动(以便tableView将左滑动读取为要删除的滑动),而我仍想检测向右滑动,以便用户可以导航回第2页。
UIPageViewController代码:
class WorkoutPageViewController: UIPageViewController, UIPageViewControllerDelegate, UIPageViewControllerDataSource {
//var pageControl = UIPageControl()
var referenceToNewWorkoutKingVC: NewWorkoutKingViewController?
// MARK: UIPageViewControllerDataSource
lazy var orderedViewControllers: [UIViewController] = {
var viewControllers = [UIViewController]()
if referenceToNewWorkoutKingVC?.sessionType == goalieSessionString || referenceToNewWorkoutKingVC?.sessionType == refSessionString || referenceToNewWorkoutKingVC?.sessionType == coachSessionString || referenceToNewWorkoutKingVC?.sessionType == openSkateSessionString {
viewControllers = [self.newVc(viewController: "NewIceDataTableViewController"),
self.newVc(viewController: "NewHealthDataTableViewController")]
} else {
viewControllers = [self.newVc(viewController: "NewIceDataTableViewController"),
self.newVc(viewController: "NewHealthDataTableViewController"),
self.newVc(viewController: "NewShiftTableViewController")]
}
return viewControllers
}()
let impact = UIImpactFeedbackGenerator(style: UIImpactFeedbackGenerator.FeedbackStyle.medium)
override func viewDidLoad() {
super.viewDidLoad()
self.dataSource = self
self.delegate = self
// This sets up the first view that will show up on our page control
if let firstViewController = orderedViewControllers.first {
setViewControllers([firstViewController],
direction: .forward,
animated: true,
completion: nil)
}
}
func newVc(viewController: String) -> UIViewController {
return UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: viewController)
}
// MARK: Delegate methods
func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
let pageContentViewController = pageViewController.viewControllers![0]
referenceToNewWorkoutKingVC?.pageControl.numberOfPages = orderedViewControllers.count
referenceToNewWorkoutKingVC?.pageControl.currentPage = orderedViewControllers.index(of: pageContentViewController)!
}
func pageViewController(_ pageViewController: UIPageViewController, willTransitionTo pendingViewControllers: [UIViewController]) {
//Haptic when pages switch, code from: https://www.hackingwithswift.com/example-code/uikit/how-to-generate-haptic-feedback-with-uifeedbackgenerator
impact.prepare()
impact.impactOccurred()
}
// MARK: Data source functions.
func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
guard let viewControllerIndex = orderedViewControllers.index(of: viewController) else {
return nil
}
let previousIndex = viewControllerIndex - 1
// User is on the first view controller and swiped left to loop to
// the last view controller.
guard previousIndex >= 0 else {
//return orderedViewControllers.last
// Uncommment the line below, remove the line above if you don't want the page control to loop.
return nil
}
guard orderedViewControllers.count > previousIndex else {
return nil
}
return orderedViewControllers[previousIndex]
}
func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
guard let viewControllerIndex = orderedViewControllers.index(of: viewController) else {
return nil
}
let nextIndex = viewControllerIndex + 1
let orderedViewControllersCount = orderedViewControllers.count
// User is on the last view controller and swiped right to loop to
// the first view controller.
guard orderedViewControllersCount != nextIndex else {
//return orderedViewControllers.first
// Uncomment the line below, remove the line above if you don't want the page control to loop.
return nil
}
guard orderedViewControllersCount > nextIndex else {
return nil
}
return orderedViewControllers[nextIndex]
}
}
答案 0 :(得分:0)
尝试一下
func manegePageControllerBounces(isEnable : Bool) {
for view in pageViewController.view.subviews {
if view is UIScrollView {
let scrollView = view as? UIScrollView
scrollView?.bounces = isEnable
}
}
}
根据要求切换弹跳
self.manegePageControllerBounces(isEnable:false)
希望对您有帮助。...