UIpageControl Indicator Dots

Question

J'ai un contrôleur de page dont les points d'indicateur disparaissent! Je voulais les disparaître Juste à la dernière page! J'ai aussi un autre problème Je veux déplacer ces points de +100 par le bas! Et ma dernière question: quelle méthode peut m'aider à écrire n'importe quelle méthode dans n'importe quelle page de mon contrôleur de vue de page? (Je veux contrôler toutes les pages lorsque l'utilisateur a vu que les pages)

voici mon 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!!!") 

    } 


    } 

}

Answer 1

Voici la réponse

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!!!") 

    } 

    } 
} 





}