UIScrollView for ViewController horizontally and vertically - ios

Question

My code tutorial works for scrolling horizontally with ScrollView.
I would like to make it with ViewControllers (instead of views) from my Storyboard.
And I would like to add a vertical ScrollView (To move from center to right or left = ScrollView horizontal, and to move from center to top or bottom (vertically).
Is that possible? Could someone give me a hint ?
Thanks
For information, this is my code :
import UIKit
class ViewController: UIViewController {
lazy var view0: UIView = {
let view = UIView()
view.backgroundColor = .systemTeal
let label = UILabel()
label.text = "Page 0"
label.textAlignment = .center
view.addSubview(label)
label.edgeTo(view: view)
return view
}()
lazy var view1: UIView = {
let view = UIView()
view.backgroundColor = .systemPink
let label = UILabel()
label.text = "Page 1"
label.textAlignment = .center
view.addSubview(label)
label.edgeTo(view: view)
return view
}()
lazy var view2: UIView = {
let view = UIView()
view.backgroundColor = .systemYellow
let label = UILabel()
label.text = "Page 2"
label.textAlignment = .center
view.addSubview(label)
label.edgeTo(view: view)
return view
}()
lazy var views = [view0, view1, view2]
lazy var scrollView: UIScrollView = {
let scrollView = UIScrollView()
scrollView.showsHorizontalScrollIndicator = false
scrollView.isPagingEnabled = true
scrollView.contentSize = CGSize(width: view.frame.width * CGFloat(views.count), height: view.frame.height)
for i in 0..<views.count {
scrollView.addSubview(views[i])
views[i].frame = CGRect(x: view.frame.width * CGFloat(i), y: 0, width: view.frame.width, height: view.frame.height)
}
scrollView.delegate = self
return scrollView
}()
lazy var pageControl: UIPageControl = {
let pageControl = UIPageControl()
pageControl.numberOfPages = views.count
pageControl.currentPage = 0
pageControl.addTarget(self, action: #selector(pageControlTapHandler(sender:)), for: .touchUpInside)
return pageControl
}()
#objc
func pageControlTapHandler(sender: UIPageControl) {
scrollView.scrollTo(horizontalPage: sender.currentPage, animated: true)
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
view.addSubview(scrollView)
scrollView.edgeTo(view: view)
view.addSubview(pageControl)
pageControl.pinTo(view)
}
}
extension ViewController: UIScrollViewDelegate {
func scrollViewDidScroll(_ scrollView: UIScrollView) {
let pageIndex = round(scrollView.contentOffset.x / view.frame.width)
pageControl.currentPage = Int(pageIndex)
}