参见英文答案 >
Disable UIPageViewController bounce8个
我一直在制作一个在UIViewControllers之间滚动的示例应用程序,但重点是我想在滚动结束时和返回第一个UIViewController时禁用弹跳效果.
我一直在制作一个在UIViewControllers之间滚动的示例应用程序,但重点是我想在滚动结束时和返回第一个UIViewController时禁用弹跳效果.
这是我的代码：
class PageViewController: UIPageViewController,UIPageViewControllerDataSource,UIPageViewControllerDelegate{
var index = 0
var identifiers: NSArray = ["FirstNavigationController","SecondNavigationController"]
override func viewDidLoad() {
self.dataSource = self
self.delegate = self
let startingViewController = self.viewControllerAtIndex(self.index)
let viewControllers: NSArray = [startingViewController]
self.setViewControllers(viewControllers as [AnyObject],direction: UIPageViewControllerNavigationDirection.Forward,animated: false,completion: nil)
}
func viewControllerAtIndex(index: Int) -> UINavigationController! {
let storyBoard : UIStoryboard = UIStoryboard(name: "Main",bundle:nil)
//first view controller = firstViewControllers navigation controller
if index == 0 {
return storyBoard.instantiateViewControllerWithIdentifier("FirstNavigationController") as! UINavigationController
}
//second view controller = secondViewController's navigation controller
if index == 1 {
return storyBoard.instantiateViewControllerWithIdentifier("SecondNavigationController") as! UINavigationController
}
return nil
}
func pageViewController(pageViewController: UIPageViewController,viewControllerAfterViewController viewController: UIViewController) -> UIViewController? {
let identifier = viewController.restorationIdentifier
let index = self.identifiers.indexOfObject(identifier!)
//if the index is the end of the array,return nil since we dont want a view controller after the last one
if index == identifiers.count - 1 {
return nil
}
//increment the index to get the viewController after the current index
self.index = self.index + 1
return self.viewControllerAtIndex(self.index)
}
func pageViewController(pageViewController: UIPageViewController,viewControllerBeforeViewController viewController: UIViewController) -> UIViewController? {
let identifier = viewController.restorationIdentifier
let index = self.identifiers.indexOfObject(identifier!)
//if the index is 0,return nil since we dont want a view controller before the first one
if index == 0 {
return nil
}
//decrement the index to get the viewController before the current one
self.index = self.index - 1
return self.viewControllerAtIndex(self.index)
}
}
看看这里：
解决方法
我不知道你能不能. UIPageController不是很容易定制的.
就个人而言,当我想在UIViewController之间滚动时,我更喜欢使用一个简单的UIViewController,它将是一个容器,里面有一个UIScrollView.然后我以编程方式添加UIScrollView的contentSize中的所有控制器.您必须将所有控制器添加为容器的子级.
更新iOS 9
func setupDetailViewControllers() {
var prevIoUsController: UIViewController?
for controller in self.controllers {
addChildViewController(controller)
addControllerInContentView(controller,prevIoUsController: prevIoUsController)
controller.didMoveToParentViewController(self)
prevIoUsController = controller
}
}
func addControllerInContentView(controller: UIViewController,prevIoUsController: UIViewController?) {
contentView.addSubview(controller.view)
controller.view.translatesAutoresizingMaskIntoConstraints = false
// top
controller.view.topAnchor.constraintEqualToAnchor(contentView.topAnchor).active = true
// bottom
controller.view.bottomAnchor.constraintEqualToAnchor(contentView.bottomAnchor).active = true
// trailing
trailingContentViewConstraint?.active = false
trailingContentViewConstraint = controller.view.trailingAnchor.constraintEqualToAnchor(contentView.trailingAnchor)
trailingContentViewConstraint?.active = true
// leading
let leadingAnchor = prevIoUsController?.view.trailingAnchor ?? contentView.leadingAnchor
controller.view.leadingAnchor.constraintEqualToAnchor(leadingAnchor).active = true
// width
controller.view.widthAnchor.constraintEqualToAnchor(scrollView.widthAnchor).active = true
}
以前的答案
像这样：
scrollView是一个IBOutlet,与ContainerViewController的每个边缘都有约束
class ContainerViewController: UIViewController {
@IBOutlet var scrollView: UIScrollView!
override func viewDidLoad() {
super.viewDidLoad()
scrollView.bounces = false
scrollView.pagingEnabled = true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override func viewDidLayoutSubviews() {
initScrollView()
}
func initScrollView(){
let viewController1 = storyboard?.instantiateViewControllerWithIdentifier("ViewController1") as! ViewController1
viewController1.willMoveToParentViewController(self)
viewController1.view.frame = scrollView.bounds
let viewController2 = storyboard?.instantiateViewControllerWithIdentifier("ViewController2") as! ViewController2
viewController2.willMoveToParentViewController(self)
viewController2.view.frame.size = scrollView.frame.size
viewController2.view.frame.origin = CGPoint(x: view.frame.width,y: 0)
scrollView.contentSize = CGSize(width: 2 * scrollView.frame.width,height: scrollView.frame.height)
scrollView.addSubview(viewController2.view)
self.addChildViewController(viewController2)
viewController2.didMoveToParentViewController(self)
scrollView.addSubview(viewController1.view)
self.addChildViewController(viewController1)
viewController1.didMoveToParentViewController(self)
}}
