是否可以在UIPageViewController中以编程方式翻页? [英] Is it possible to Turn page programmatically in UIPageViewController?
问题描述
是否可以在 UIPageViewController
中以编程方式翻页?
Is it possible to turn page programmatically in UIPageViewController
?
推荐答案
是的,方法可行:
- (void)setViewControllers:(NSArray *)viewControllers
direction:(UIPageViewControllerNavigationDirection)direction
animated:(BOOL)animated
completion:(void (^)(BOOL finished))completion;`
这与在页面上设置第一个视图控制器的方法相同。类似的,你可以用它来转到其他页面。
That is the same method used for setting up the first view controller on the page. Similar, you can use it to go to other pages.
想知道为什么 viewControllers
是一个数组,而不是一个数组单视图控制器?
Wonder why viewControllers
is an array, and not a single view controller?
这是因为页面视图控制器可以有一个书脊(就像在iBooks中一样),一次显示2页内容。如果您一次显示1页内容,则只需传入1个元素的数组。
That's because a page view controller could have a "spine" (like in iBooks), displaying 2 pages of content at a time. If you display 1 page of content at a time, then just pass in a 1-element array.
Swift中的示例:
An example in Swift:
pageContainer.setViewControllers([displayThisViewController], direction: .Forward, animated: true, completion: nil)
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