I have a Page Controller which the indicator Dots Disappeared! I wanted to disappear them Just In the Last Page ! I have Another Problem too I want to move these dots +100 from bottom ! And my last question: which method can help me to write any method in any page in my page view controller ? ( I want to control all pages when the user saw that pages)
here is my code
class pageVC : UIPageViewController , UIPageViewControllerDataSource , UIPageViewControllerDelegate {
let pageVC = UIPageControl()
lazy var VCArr : [UIViewController] = {
return [self.VCInstance(name : "FirtsVC"),
self.VCInstance(name : "SecondVC"),
self.VCInstance(name :"ThirdVC"),
self.VCInstance(name :"FourthVC"),
self.VCInstance(name :"FivethVC")]
}()
private func VCInstance(name : String) -> UIViewController {
return UIStoryboard(name : "Main" , bundle : nil).instantiateViewController(withIdentifier: name)
}
override func viewDidLoad() {
super.viewDidLoad()
self.dataSource = self
self.delegate = self
if VCArr.first != nil {
print("first Page Reached!")
}
if let firstVC = VCArr.first {
setViewControllers([firstVC] , direction: .forward , animated: true, completion: nil)
}
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
let pageVC = UIPageControl()
for view in self.view.subviews {
if view is UIScrollView {
let pageControl = UIPageControl()
pageControl.pageIndicatorTintColor = UIColor.gray
pageControl.currentPageIndicatorTintColor = UIColor.white
pageControl.backgroundColor = UIColor.darkGray
pageControl.numberOfPages = VCArr.count
pageControl.center = self.view.center
self.view.addSubview(pageControl)
pageControl.layer.position.y = self.view.frame.height - 100;
}else if view is UIPageControl{
view.backgroundColor = UIColor.clear
pageVC.numberOfPages = 5
pageVC.center = self.view.center
pageVC.layer.position.y = self.view.frame.height - 180 ;
}
}
}
public func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController?{
guard let viewControllerIndex = VCArr.index(of: viewController) else {
return nil
}
let previousIndex = viewControllerIndex-1
guard previousIndex >= 0 else {
return nil
}
guard VCArr.count > previousIndex else {
return nil
}
return VCArr[previousIndex]
}
public func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController?{
guard let viewControllerIndex = VCArr.index(of: viewController) else {
return nil
}
let nextIndex = viewControllerIndex+1
guard nextIndex < VCArr.count
else {
return nil
}
guard VCArr.count > nextIndex else {
return nil
}
if nextIndex == VCArr.count{
pageVC.isHidden = false
}
return VCArr[nextIndex]
}
public func presentationCount(for pageViewController: UIPageViewController) -> Int{
return VCArr.count
}
public func presentationIndex(for pageViewController: UIPageViewController) -> Int{
guard let firstViewController = viewControllers?.first , let firstViewControllerIndex = VCArr.index(of: firstViewController) else {
return 0
}
let firstIndex = firstViewControllerIndex - 1
guard firstIndex >= VCArr.count else {
return VCArr.count
}
return firstViewControllerIndex
}
public func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
if (VCArr.last!.isViewLoaded)
{
print("It is Done!!!")
}
}
}
here is the answer
class pageVC : UIPageViewController , UIPageViewControllerDataSource , UIPageViewControllerDelegate {
let pageVC = UIPageControl()
lazy var VCArr : [UIViewController] = {
return [self.VCInstance(name : "FirtsVC"),
self.VCInstance(name : "SecondVC"),
self.VCInstance(name :"ThirdVC"),
self.VCInstance(name :"FourthVC"),
self.VCInstance(name :"FivethVC")]
}()
private func VCInstance(name : String) -> UIViewController {
return UIStoryboard(name : "Main" , bundle : nil).instantiateViewController(withIdentifier: name)
}
override func viewDidLoad() {
super.viewDidLoad()
self.dataSource = self
self.delegate = self
let launchedBefore = UserDefaults.standard.bool(forKey: "launchedBefore")
if launchedBefore {
print("Not first launch!")
print("Should Launch MainTabBarController!")
/////Not First Time launch! reach mainTabBarController//////////
} else {
print("First launch, setting UserDefault.")
UserDefaults.standard.set(true, forKey: "launchedBefore")
}
//////Lock Rotation/////////
var shouldAutorotate: Bool {
return false
}
var supportedInterfaceOrientations: UIInterfaceOrientationMask {
return .portrait
}
func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
let value = UIInterfaceOrientation.portrait.rawValue
UIDevice.current.setValue(value, forKey: "orientation")
UIViewController.attemptRotationToDeviceOrientation()
}
func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
return [UIInterfaceOrientationMask.portrait ]
}
///////Lock Roration//////
if VCArr.first != nil {
print("first Page Reached!")
}
if let firstVC = VCArr.first {
setViewControllers([firstVC] , direction: .forward , animated: true, completion: nil)
}
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
let view = self.pageVC.currentPage
for view in self.view.subviews {
if view is UIScrollView {
let pageVC = UIPageControl()
self.pageVC.pageIndicatorTintColor = UIColor.lightText
self.pageVC.currentPageIndicatorTintColor = UIColor.white
self.pageVC.backgroundColor = UIColor.white
self.pageVC.numberOfPages = VCArr.count
self.pageVC.center = self.view.center
self.view.addSubview(self.pageVC)
pageVC.layer.position.y = self.view.frame.height - 150;
}else if view is UIPageControl{
view.backgroundColor = UIColor.clear
pageVC.numberOfPages = 5
pageVC.center = self.view.center
pageVC.layer.position.y = self.view.frame.height - 100 ;
}
}
}
public func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController?{
guard let viewControllerIndex = VCArr.index(of: viewController) else {
return nil
}
let previousIndex = viewControllerIndex-1
guard previousIndex >= 0 else {
return nil
}
guard VCArr.count > previousIndex else {
return nil
}
return VCArr[previousIndex]
}
public func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController?{
guard let viewControllerIndex = VCArr.index(of: viewController) else {
return nil
}
let nextIndex = viewControllerIndex+1
guard nextIndex < VCArr.count
else {
return nil
}
guard VCArr.count > nextIndex else {
return nil
}
return VCArr[nextIndex]
}
public func presentationCount(for pageViewController: UIPageViewController) -> Int{
return VCArr.count
}
public func presentationIndex(for pageViewController: UIPageViewController) -> Int{
guard let firstViewController = viewControllers?.first , let firstViewControllerIndex = VCArr.index(of: firstViewController) else {
return 0
}
let firstIndex = firstViewControllerIndex - 1
guard firstIndex >= VCArr.count else {
return VCArr.count
}
return firstViewControllerIndex
}
public func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
self.pageVC.currentPage = pageViewController.viewControllers!.first!.view.tag
if(viewControllers!.first?.view.tag == 4 ) {
if (VCArr.last!.isViewLoaded)
{
let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let viewController = mainStoryboard.instantiateViewController(withIdentifier: "FivethVC")
let appDelegate = UIApplication.shared.delegate as! AppDelegate
appDelegate.window?.rootViewController = viewController
print("Last Page Reached!!!")
}
}
}
}