UIPageViewController ne pas terminer la transition sur le bouton cliquez

Question

J'ai un UIPageViewController qui gère un tableau de viewControllers lorsque je me glisse entre eux tout va bien, mais j'ai quelques méthodes (après la connexion réussie et après le clic du bouton de menu) qui déclenchent un ' sauter à viewController dans le tableau UIPageViewControllers. chaque fois que je saute sur une page, la transition n'est pas complète et j'ai un écran qui est « coincé » entre deux viewControllers

Pour simplifier, j'ajouter que le code de connexion réussie, parce que je mets tout de même pour bouton clique, et la même chose arrive.

C'est ma configuration UIPageViewController:

import UIKit 

class PageViewController: UIPageViewController , UIPageViewControllerDataSource , UIPageViewControllerDelegate , ClubViewControllerDelegate , CustomSvDelegate{ 

//clubvcdelegate protocol method 

func fbLoggedInWithSuccess(){ 
self.displayPageForIndex(index: 4, animated: false) 
} 

//menubuttondelegate protocol method 
func menuButtonPressed0() { 

    self.displayPageForIndex(index: 0, animated: false) 
    self.currentPageIndex = 0 
    self.closeMenu() 
} 

//page swipe control 

lazy var vcArray : [UIViewController] = { 
    return [self.vcInstance (name : "clubVC"), 
      self.vcInstance (name : "menuVC"), 
      self.vcInstance (name : "contactVC"), 
      self.vcInstance (name : "aboutVC"), 
      self.vcInstance (name : "membersVC")] 
    }() 

private func vcInstance(name : String) -> UIViewController{ 
    let storyBoard = UIStoryboard(name: "Main", bundle: nil) 
    return storyBoard.instantiateViewController(withIdentifier: name) 
} 


override func viewDidLoad() { 
    super.viewDidLoad() 
    self.dataSource = self 
    self.delegate = self 
    if let clubVC = vcArray.first { 
     let club = clubVC as! ClubViewController 
     club.delegate = self 
     setViewControllers([clubVC], direction: .forward, animated: true, completion: nil) 
    } 
    self.generateStackView() 
} 


override func viewDidLayoutSubviews() { 
    super.viewDidLayoutSubviews() 
    for view in self.view.subviews { 
     if view is UIScrollView {view.frame = UIScreen.main.bounds} else if view is UIPageControl {view.backgroundColor = UIColor.clear} 
    } 
} 

override func didReceiveMemoryWarning() { 
    super.didReceiveMemoryWarning() 
    // Dispose of any resources that can be recreated. 
} 

public func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController?{ 
    guard let viewControllerIndex = vcArray.index(of: viewController) else {return nil} 

    let previousIndex = viewControllerIndex - 1 

    guard previousIndex >= 0 else {return vcArray.last} 

    guard vcArray.count > previousIndex else {return nil} 

    return vcArray[previousIndex] 

} 


public func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController?{ 
    guard let viewControllerIndex = vcArray.index(of: viewController) else {return nil} 

    let nextIndex = viewControllerIndex + 1 

    guard nextIndex < vcArray.count else {return vcArray.first} 

    guard vcArray.count > nextIndex else {return nil} 

    return vcArray[nextIndex] 

} 

public func presentationCount(for pageViewController: UIPageViewController) -> Int{ 
    return vcArray.count 
} 


public func presentationIndex(for pageViewController: UIPageViewController) -> Int{ 
    guard let firstViewController = viewControllers?.first , 
    let firstViewControllerIndex = vcArray.index(of: firstViewController) else { 
     return 0 
    } 
    return firstViewControllerIndex 
} 

et voilà comment je mis en place des choses où fblogin réussit:

protocol ClubViewControllerDelegate:class { 
func fbLoggedInWithSuccess() 
} 

class ClubViewController: UIViewController , FBSDKLoginButtonDelegate { 
var delegate:ClubViewControllerDelegate? 

func showFbDetails(){ 

    let accesToken = FBSDKAccessToken.current() 

    guard let accesTokenString = accesToken?.tokenString else {return} 

    let credentials = FIRFacebookAuthProvider.credential(withAccessToken: accesTokenString) 

    FIRAuth.auth()?.signIn(with: credentials, completion: { (user, error) in 
     if error != nil { 
      print ("something went wrong" , error!) 
      return 
     } 
     print ("succes") 
     self.delegate?.fbLoggedInWithSuccess() 
    }) 

} 

Photos:

EDIT2 Cela ne se produit lorsque animé vrai, quand faux, il termine correctement

EDIT3 Ceci est la méthode que je l'utilise maintenant pour définir les contrôleurs de vue:

func displayPageForIndex(index : Int , animated : Bool = true){ 
    assert(index >= 0 && index < self.vcArray.count, "Error: Attempting to display a page for an out of bounds index") 
    if self.currentPageIndex == index {return} 
    if index < self.currentPageIndex { 
     self.setViewControllers([self.vcArray[index]], direction: .reverse, animated: false, completion: nil) 
    } else if index > self.currentPageIndex { 
     self.setViewControllers([self.vcArray[index]], direction: .forward, animated: false, completion: nil) 
    } 
} 

Je l'appelle à l'intérieur de fbLoggenInWithSuccess et menuButtonPressed. En outre, ont une Currentlndex variable qui contient l'index actuel de la page

Answer 1

Comme Matt a suggéré de supprimer viewDidLayoutSubviews tranché la question