PageViewController 嵌入到其他 PageViewController

Posted 2023-03-14

【中文标题】PageViewController 嵌入到其他 PageViewController

【英文标题】：PageViewController embedded in other PageViewController

【发布时间】：2016-01-31 15:28:14

【问题描述】：

我在ViewController 中创建了一个PageViewController，如下所示：

MainViewController (viewDidLoad())

self.pageViewController = UIPageViewController(transitionStyle: .Scroll, navigationOrientation: .Horizontal, options: nil)
self.pageViewController.dataSource = self
self.pageViewController.delegate = self;
self.pageViewController.view.frame = CGRectMake(0, 100, self.view.frame.size.width, self.view.frame.size.height)
let initialViewController : UIViewController! = viewControllerArray.objectAtIndex(self.currentPageIndex) as! UIViewController
let viewControllers: NSArray? = NSArray(objects: initialViewController)

pageViewController.setViewControllers(viewControllers as? [UIViewController], direction: .Forward, animated:true, completion: nil)

self.addChildViewController(self.pageViewController)
self.view.addSubview(self.pageViewController.view)
self.pageViewController.didMoveToParentViewController(self)
    self.syncScrollView()

一切都很好。这个viewController在方法上捕获事件

func presentationCountForPageViewController(pageViewController: UIPageViewController) -> Int

我的问题是这个 pageViewController 的其中一个页面里面有其他 UIPageViewController，与其他 UIViewController 相关联。我创建另一个 UIPageViewController 的方式是：

SecondViewController (viewDidLoad())

self.pageNoticiaViewcontroller = UIPageViewController(transitionStyle: .Scroll, navigationOrientation: .Vertical, options: nil)
            self.pageNoticiaViewcontroller.didMoveToParentViewController(self);
    self.pageNoticiaViewcontroller.dataSource = self;
    self.pageNoticiaViewcontroller.delegate = self;

    let startVC = self.getControllerAtIndex(0) as InicioIndividualUIViewController;

    let viewControllers = NSArray(object:  startVC);

    self.pageNoticiaViewcontroller.setViewControllers(viewControllers as? [UIViewController], direction: .Forward, animated: true, completion: nil);

    self.pageNoticiaViewcontroller.view.frame = CGRectMake(0, 0, self.view.frame.width, self.view.frame.height - 40);

    self.addChildViewController(self.pageNoticiaViewcontroller);
    self.view.addSubview(self.pageNoticiaViewcontroller.view);

问题是：

第二个 PageViewController (pageNoticiaViewController)不调用方法presentationCountForPageViewController，但调用方法presentationCountForPageViewController父级

我怎么能做到第二个PageViewController 调用第二个 UIViewController 的方法presentationConuntForPageViewController，而不是调用父级的方法？非常感谢！

【参考方案1】：

我认为你必须这样尝试：

self.pageViewController.view.tag=0 

self.pageNoticiaViewcontroller.view.tag=1 

并将条件放入数据源和委托方法中，如

示例：

 func presentationCountForPageViewController(pageViewController: UIPageViewController) -> Int
  

if pageController.view.tag == 0

     return  yourcount // here self.pageViewController count

else
  
     return  yourcount  // here self.pageNoticiaViewcontroller count