问题
My app keeps crashing, when I set more than one view controller in my app, like below.
[self setViewControllers:_images direction:UIPageViewControllerNavigationDirectionForward animated:YES completion:NULL];
My images is an array of view controllers.
The app crashes saying the following error. I have no idea where to start.
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'The number of view controllers provided (9) doesn't match the number required (1) for the requested transition
回答1:
As the error says,you are providing more view controllers than needed. You should provide only 1 view controller in an array. Then use page view controller's dataSource methods to provide before and after view controllers properly.
回答2:
UIPageViewController in iOS has some bugs. Use UIScrollView + NSArray of UIViewController instead! Maybe this will help. http://weijun.me/post/develop/2015-11-26
来源：https://stackoverflow.com/questions/17333746/uipageviewcontroller-class-crashing-on-setting-more-than-one-view-controllers