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
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.
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