UIPageViewContoller in container view with page control icon - ios

Question

I am writing a Swift app with three views. I have achieved this by putting a UIPageViewController inside a container and having that switch when you swipe, from another Stack Overflow article: UIPageViewController and storyboard. I would also like to have dots on the bottom indicating the page you are on. But, the UIPageControl I am using can only be placed on the view controller with the container, and the code with the current page is in the page controller's code. Here is my code:
class ContainerView : UIViewController {
#IBOutlet var myPageController: UIPageControl!
}
class MyPageViewController: UIPageViewController, UIPageViewControllerDataSource, UIPageViewControllerDelegate {
var pages = [UIViewController]()
override func viewDidLoad() {
super.viewDidLoad()
self.delegate = self
self.dataSource = self
let page1: UIViewController! = storyboard?.instantiateViewController(withIdentifier: "Page1ID")
let page2: UIViewController! = storyboard?.instantiateViewController(withIdentifier: "Page2ID")
let page3: UIViewController! = storyboard?.instantiateViewController(withIdentifier: "Page3ID")
pages.append(page1)
pages.append(page2)
pages.append(page3)
setViewControllers([page1], direction: UIPageViewControllerNavigationDirection.forward, animated: false, completion: nil)
}
func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
let currentIndex = pages.index(of: viewController)!
if (currentIndex == 0) {
return pages[currentIndex]
}
let previousIndex = abs((currentIndex - 1) % pages.count)
//myPageControl.currentPage = previousIndex
return pages[previousIndex]
}
func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
let currentIndex = pages.index(of: viewController)!
if (currentIndex == 2) {
return pages[currentIndex]
}
let nextIndex = abs((currentIndex + 1) % pages.count)
//myPageControl.currentPage = nextIndex
return pages[nextIndex]
}
func presentationCountForPageViewController(pageViewController: UIPageViewController) -> Int {
return pages.count
}
func presentationIndexForPageViewController(pageViewController: UIPageViewController) -> Int {
return 0
}
}
How could I access the parent view controller (ContainerView) from the child in the container (MyPageViewController)? I'm new to Swift/Objective-C but have programmed in other languages (C++, Python). If you need the storyboard, please ask.