PageViewController swift

UIPageViewController


This is your story board file

I have 3 types of VC's , 1st Vc, 2nd VC is PageViewController with 3 pages(I added PageController to normal ViewController here), third one is FinalViewController.

1st VC has button when i click it will move to 2nd VC that is PageViewController(It has 3 pages[3 ViewConrollers] working fine). 

In PageViewController after loading first VC, it has view with gestures when i tap that i want to navigate FinalViewController completely.

My 1st ViewController code

import UIKit

class FirstViewController: UIViewController {

    override func viewDidLoad() {

        super.viewDidLoad()

        // Do any additional setup after loading the view.

    }

    

    override func viewWillAppear(_ animated: Bool) {

        self.navigationController?.navigationBar.isHidden = true

    }

    

    override func viewWillDisappear(_ animated: Bool) {

        self.navigationController?.navigationBar.isHidden = false

    }

    

    @IBAction func btn(_ sender: Any) {

        

        let storyboard = self.storyboard?.instantiateViewController(withIdentifier: "NVC")

        self.navigationController?.pushViewController(storyboard!, animated: true)

    }

}

My NewViewController code

import UIKit

class NewViewController: UIViewController, UIPageViewControllerDataSource, UIPageViewControllerDelegate {

        

    @IBOutlet weak var pagerController: UIPageControl!

    @IBOutlet weak var pageControllerView: UIView!

    

    // The pages it contains

    var pages =  [UIViewController]()

    

    // The UIPageViewController

    var pageContainer: UIPageViewController!

    // Track the current index

    var currentIndex: Int?

    private var pendingIndex: Int?

    

    override func viewDidLoad() {

        super.viewDidLoad()

        

        // Setup the pages

        let storyboard = UIStoryboard(name: "Main", bundle: nil)

        let page1 = storyboard.instantiateViewController(withIdentifier: "ViewController") as! ViewController

        let page2: UIViewController! = storyboard.instantiateViewController(withIdentifier: "SecondViewController")

        let page3: UIViewController! = storyboard.instantiateViewController(withIdentifier: "ThirdViewController")

        pages.append(page1)

        pages.append(page2)

        pages.append(page3)

        

        page1.variable = "This is strig..."

        

        // Create the page container

        pageContainer = UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)

        pageContainer.delegate = self

        pageContainer.dataSource = self

        pageContainer.setViewControllers([page1], direction: UIPageViewController.NavigationDirection.forward, animated: false, completion: nil)

        // Add it to the view

        pageControllerView.addSubview(pageContainer.view)

        

        

        // Configure our custom pageControl

        view.bringSubviewToFront(pagerController)

        pagerController.numberOfPages = pages.count

        pagerController.currentPage = 0

       

        

    }

    

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }

    

   

    // MARK: - UIPageViewController delegates

    

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

        let currentIndex = pages.firstIndex(of:viewController)!

        if currentIndex == 0 {

            return nil

        }

        let previousIndex = abs((currentIndex - 1) % pages.count)

        return pages[previousIndex]

    }

    

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

        let currentIndex = pages.firstIndex(of:viewController)!

        if currentIndex == pages.count-1 {

            return nil

        }

        let nextIndex = abs((currentIndex + 1) % pages.count)

        return pages[nextIndex]

    }

    func pageViewController(_ pageViewController: UIPageViewController, willTransitionTo pendingViewControllers: [UIViewController]) {

        pendingIndex = pages.firstIndex(of:pendingViewControllers.first!)

    }

    

    func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {

        if completed {

            currentIndex = pendingIndex

            if let index = currentIndex {

                pagerController.currentPage = index

            }

        }

    }

    

    

}

My ViewController code

import UIKit

class ViewController: UIViewController {

    

    var variable = String()

    @IBOutlet weak var subView: UIView!

    

    override func viewDidLoad() {

        super.viewDidLoad()

        // Do any additional setup after loading the view.

        

        subView.isUserInteractionEnabled = true

        

        //Add gesture to incoming call view

        let incomingCallsViewTap = UITapGestureRecognizer(target: self, action: #selector(incomingCallsViewTapFunction(_:)))

        self.subView!.addGestureRecognizer(incomingCallsViewTap)

        

    }

    

    // Tap gestrure selector fuction

    @objc func incomingCallsViewTapFunction(_ sender: UITapGestureRecognizer) {

        let clvc = self.storyboard?.instantiateViewController(withIdentifier: "FVC") as! FinalViewController

//        self.navigationController?.pushViewController(clvc, animated: false)

        

        (UIApplication.shared.keyWindow?.rootViewController as? UINavigationController)?.pushViewController(clvc, animated: true)

        

    }

    

    @IBAction func btn(_ sender: Any) {

        print("ViewController one")

        print(variable)

    }

    

    

}