Issues with StoryBoard ViewControllers in IOS Tabbed App

In the struggles of developing an IOS Tabbed App with Swift 1.2 and Xcode 6.3 based on MVC, I use Storyboard visuals instead of doing it programmatically because I'm not an experienced developer. In the image below, you can see the Architecture in the StoryBoard

application:

The application consists of:

• One TabBarController
  
  to four TabBar Items
  
  .
• Each Item
  
  has its own ViewController
  
  c StoryBoard
  
  .
• They are all associated with relationship seque
  
  (ViewControllers) in StoryBoard
  
  .
• Everyone ViewController
  
  in StoryBoard
  
  has its own Class
  
  .
• The last item is built in NavigationController
  
  because I am using the PageMenu project https://github.com/uacaps/PageMenu to enable a paging menu controller with two childrenViewControllers
  
  

The problems I have up to this point:

• The two are child ViewControllers
  
  not related to Last TabBar Item
  
  in StoryBoard
  
  , as you can see in the picture above, only created in parent ViewController Class
  
  (PageMenuViewController1), usually this one PageMenu
  
  works but sometimes the last one TabBar Item
  
  disappears, I am very confused about this problem .
• override func viewWillAppear
  
  the default child ViewController
  
  is called twice the first time I have println ("ClubsController viewWillAppear").

ViewControllers Code

import UIKit


class ClubsViewController: UIViewController, UITableViewDataSource{

  @IBOutlet var tableview:UITableView!

  let apiClient = ApiClient()

  var clubs: [Club]!

  override func viewWillAppear(animated: Bool) {
    super.viewWillAppear(animated)

    println("ClubsController viewWillAppear")

    apiClient.clubsService.getList() { clubs, error in
      if clubs != nil {
        self.clubs = clubs
        self.tableview?.reloadData()
      }
      else {
        println("error: \(error)")
      }
    }

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

  func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return self.clubs?.count ?? 0
  }

  func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) ->UITableViewCell {
    var cell = tableView.dequeueReusableCellWithIdentifier("clubObjectCell") as! ClubTableViewCell
    cell.clubObject = self.clubs?[indexPath.row]
    return cell
  }

}

      

        
        
        
      

    

PageMenuViewController Code

import UIKit

class PageMenuViewController1: UIViewController {

  var pageMenu : CAPSPageMenu?

  override func viewDidAppear(animated: Bool) {

    println("PageMenuViewController1 viewWillAppear")

    super.viewDidAppear(animated)
    // Array to keep track of controllers in page menu
    var controllerArray : [UIViewController] = []

    // Create variables for all view controllers you want to put in the
    // page menu, initialize them, and add each to the controller array.
    // (Can be any UIViewController subclass)
    // Make sure the title property of all view controllers is set
    // Example:
    var controller1 = storyboard!.instantiateViewControllerWithIdentifier("ClubsViewController")! as! ClubsViewController
    controller1.title = "CLUBS"
    controllerArray.append(controller1)
    var controller2 = storyboard!.instantiateViewControllerWithIdentifier("PartiesViewController")! as! PartiesViewController
    controller2.title = "PARTIES"
    controllerArray.append(controller2)

    // Customize page menu to your liking (optional) or use default settings by sending nil for 'options' in the init
    // Example:
    var parameters: [CAPSPageMenuOption] = [
      .MenuItemSeparatorWidth(4.3),
      .UseMenuLikeSegmentedControl(true),
      .MenuItemSeparatorPercentageHeight(0.1)
    ]

    // Initialize page menu with controller array, frame, and optional parameters
    pageMenu = CAPSPageMenu(viewControllers: controllerArray, frame: CGRectMake(0.0, 0.0, self.view.frame.width, self.view.frame.height), pageMenuOptions: parameters)

    // Lastly add page menu as subview of base view controller view
    // or use pageMenu controller in you view hierachy as desired
    self.view.addSubview(pageMenu!.view)
  }
}

      

        
        
        
      

    

Appreciate help to achieve best practices up to this point.