UIPageViewController: get the currentPage

Question

I have been struggling with this issue for the last few days and after all this juggling I have figured out that all I need is the current Index from the datasource method to up

Answer 1

This is how I determine the current page index whether the user swipes to the left or to the right and whether he changes his swipe direction gesture in the middle of swiping. Just make sure you have a pageIndex property in your view controller to store the index:

func pageViewController(pageViewController: UIPageViewController, willTransitionToViewControllers pendingViewControllers: [UIViewController]) {
        let currentPageIndex = (pendingViewControllers.last! as! ViewController).pageIndex!
    }