This tutorial lets you create a pageviewcontroller using latest xcode 9 and swift.

Step 1:
Setup storyboard.

The first viewcontroller is having container view, the place for putting our page viewcontroller.

Don't forget to embbed pageviewcontroller to container view of initial viewcontroller

Step 2: In your third viewcontroller class. Create one variable index.

class OverviewVC: UIViewController {

    

    var index: Int = 0 

    override func viewDidLoad() {

        super.viewDidLoad()

    }

Step 3: In your PageController subclass create one method to get viewcontroller from index.

    func viewControllerAtIndex(Index: Int) -> OverviewVC {

        

        let vc = OverviewVC()

        

        switch Index {

        case 0:

            vc.view.backgroundColor = UIColor.red

        case 1:

            vc.view.backgroundColor = UIColor.blue

        case 3:

                vc.view.backgroundColor = UIColor.green

        default:

            vc.view.backgroundColor = UIColor.yellow

        }

        vc.index = Index

        return vc

    }

Add delegate and data source to class 

 class OverviewPageVC: UIPageViewController, UIPageViewControllerDelegate, UIPageViewControllerDataSource {

...

          Add this code to your viewdidload method

       self.dataSource = self

                

        var overviewVC = OverviewVC()

        

        overviewVC = self.viewControllerAtIndex(Index: 0)

        

        self.setViewControllers([overviewVC], direction: .forward, animated: true, completion: nil)

Step 4: Delegate methods for uipageviewcontroller

             func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {

        

       let currentVC = OverviewVC()

        

        var index = currentVC.index

        

        index = index - 1

        

        return self.viewControllerAtIndex(Index: index)

    }

    

    func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {

        

        let currentVC = OverviewVC()

        var index = currentVC.index

        index = index + 1

        return self.viewControllerAtIndex(Index: index)

        

    }

Thats it!!