UIPageViewController: return the current visible view

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You should manually keep track of the current page.

The delegate method pageViewController:didFinishAnimating:previousViewControllers:transitionCompleted: will tell you when to update that variable. The last argument of the method transitionCompleted: can tell you whether a user completed a page turn transition or not.

Then, you can get the currently presented View Controller by doing

self.viewControllers?.first

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