import UIKit
import PageControl
class ViewController: UIViewController, UIScrollViewDelegate {
@IBOutlet weak var scrollView: UIScrollView!
@IBOutlet weak var pageControl: PageControl!
override func viewDidLoad() {
super.viewDidLoad()
scrollView.delegate = self
pageControl.numberOfPages = Int(scrollView.contentSize.width / scrollView.bounds.width)
pageControl.addTarget(self, action: #selector(pageControlDidChangeCurrentPage(_:)), for: .valueChanged)
}
@objc func pageControlDidChangeCurrentPage(_ pageControl: PageControl) {
scrollView.setContentOffset(CGPoint(x: scrollView.bounds.width * CGFloat(pageControl.currentPage), y: 0), animated: true)
}
func scrollViewDidScroll(_ scrollView: UIScrollView) {
if scrollView.isDragging || scrollView.isDecelerating {
let page = scrollView.contentOffset.x / scrollView.bounds.width
pageControl.setCurrentPage(page)
}
}
}