Xcode Swift Home PageControl

gistfile1.txt

import UIKit

class HomeViewController: UIViewController {

  @IBOutlet weak var pageControl: UIPageControl!
  @IBOutlet weak var pageImageView: UIImageView!
  @IBOutlet weak var pageCaptionLabel: UILabel!
  
  var pageIndex = 0
  let pageIndexMin = 0
  let pageIndexMax = 2
  
  let pages: [Page] = [
    Page(imageName: "welcome.png", caption: "Welcome", ),
    Page(imageName: "about.png", caption: "About"),
    Page(imageName: "contact.png", caption: "Contact"),
  ]

  class Page {
    
    var index: Int!
    var image: UIImage!
    var caption: String!
    
    internal init(imageName: String, caption: String) {
      self.image = UIImage(named: imageName)
      self.caption = caption
    }
  }

  // MARK: - Call these methods to change which page the user sees

  func pagePrev() {
    if (pageIndex > pageIndexMin) {
      pageUpdate(--pageIndex)
    }
  }

  func pageNext() {
    if (pageIndex < pageIndexMax) {
      pageUpdate(++pageIndex)
    }
  }

  func pageUpdate(index: Int) {
    let page: IntroPage = pages[index]
    pageControl.currentPage = index
    pageImageView.image = page.image
    pageCaptionLabel.text = page.caption
  }

  // MARK: - Call these methods when the user gestures on the XIB UIImageView object.
  
  @IBAction func handleTap(sender: UITapGestureRecognizer) {
    pageNext()
  }
  
  @IBAction func handleSwipeLeft(sender: UISwipeGestureRecognizer) {
    pageNext()
  }
  
  @IBAction func handleSwipeRight(sender: UISwipeGestureRecognizer) {
    pagePrev()
  }

  // MARK: - Call this method when the user swipes the XIB page control object.
  
  @IBAction func pageChange(sender: UIPageControl) {
    pageUpdate(sender.currentPage)
  }
  
  
}

can u give introPage file?