使用UIPageViewControllerDataSource时，在UIPageViewController中以编程方式翻页？ [英] Turn page programmatically in UIPageViewController when using UIPageViewControllerDataSource?

问题描述

我有一个 UIPageViewController 和一个符合 UIPageViewControllerDataSource 的类，并管理UIPageViewController显示的UIViewControllers。当用户启动翻页时，一切运行良好。但是现在我想以编程方式做到这一点。

I have an UIPageViewController and a class which conforms to UIPageViewControllerDataSource and manages the UIViewControllers which UIPageViewController displays. It all runs well when turning the pages is initiated by the user. But now I want to do that programmatically.

我发现在SO上有一个非常类似的问题，它回答了静态数量的ViewControllers的问题：< a href =https://stackoverflow.com/questions/7208871/is-it-possible-to-turn-page-programmatically-in-uipageviewcontroller>是否可以在UIPageViewController中以编程方式翻页？

I've found that there is a very similar question here on SO which answers the question for a static amount of ViewControllers: Is it possible to Turn page programmatically in UIPageViewController?

但是我无法调整使用UIPageViewControllerDataSource的答案。我当时认为必须有这样的东西：

But I'm unable to adapt the answers to the use of UIPageViewControllerDataSource. I was thinking that there must be something like:

- (void)setCurrentViewController:(UIViewController *)viewController

我想我只是在这里忽略了一些东西。

I suppose I'm just overlooking something here.

推荐答案

答案中提到的方法（ setViewControllers：direction：animated：completion：）设置当前视图控制器而这正是你所需要的。
使用第一个参数定义视图控制器，您想要显示。如果您没有书脊，请使用一个，如果您预订左/右使用两个。

The Method mentioned in the answer ( setViewControllers:direction:animated:completion: ) sets the current view controller and is exactly what you need. With the first param you define the view controller(s), you want to display. Use one if you don't have a spine, if you book is left/right use two.

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