A page view controller provides a way to implement linear navigation between pages of content, such as in a document, book, notepad, or calendar. A page view controller uses one of two styles to manage transitions between pages during navigation—scrolling or page-curl. A scrolling transition has no specific appearance; pages fluidly scroll from one to the next. A page-curl transition causes pages to curl over as you swipe across the screen, turning like pages in a physical book.
If appropriate, implement a way to navigate nonlinearly. When a page view controller is used, pages flow sequentially and there’s no way to jump between nonadjoining pages. If people may need to access pages out of sequence in your app, implement a custom control that provides this functionality.
For developer guidance, see UIPageViewController.