UIPageViewController stacking ViewControllers when segueing to home page

Question

I have two storyboards, a main then a second storyboard which houses a UIPageViewController. Inside the second storyboard, an exit button allows a user to return to the home screen which is on the main storyboard.

When I attempt to segue back to the home screen, the page controller views are stacking. I have tried to use:

self.navigationController?.popViewController

Along with some other methods to deallocate the UIPageViewController sets. Nothing seems to work? How do I fix this?

You can see in the image below where the controllers are marked by (3).

Memory Graph Image

Below are a few of my attempts. I am using a notification to invoke a method on the root controller after the user confirms via a yes/no custom modal.

func attempt1() {
    self.viewControllerList.forEach {
        index in
        index.removeFromParentViewController()
        index.dismiss(animated: false, completion: nil)
        index.navigationController?.popViewController(animated: false)
    }
   self.performSegue(withIdentifier: "unwindHome", sender: self)
}

func attempt2() {
    self.childViewControllers.forEach {
        c in
        print("CHILD...>", c)
        c.removeFromParentViewController()
        c.dismiss(animated: false, completion: nil)
    }
}

func attempt3() {
    (view.window?.rootViewController as? UIPageViewController)?.dismiss(animated: true, completion: nil)
    self.dismiss(animated: false, completion: {
        self.viewControllerList.forEach {
            i in
            i.navigationController?.popViewController(animated: true)
        }
    })
   self.performSegue(withIdentifier: "unwindHome", sender: self)
}

if you are showing the second storyboard from the first then wouldn't it be enough to dismiss the current `UIPageViewController` to go back please show how you are presenting the second view — zombie, Mar 02 '17 at 02:52
I am presenting the storyboard modally; before it was simply a show. On the main storyboard homepage, there is a button that is bound by a triggered segue that leads to the first page of the UIPageViewController. Just before you responded, I began to think maybe the storyboards were involved somehow then found this link: http://stackoverflow.com/questions/33369171/can-an-unwind-segue-work-between-two-storyboards-connected-by-a-storyboard-ref Thoughts? — velaru, Mar 02 '17 at 03:02
since you are presenting the controller modally i would suggest this http://stackoverflow.com/a/24669203/6689101 — zombie, Mar 02 '17 at 03:06

velaru · Accepted Answer · 2017-03-21T00:13:01.097

Here were my issues:

On the first storyboard, my nav controller was not set to initial.
- After setting it to initial, i then linked from the main SB to the second SB
Delegates var's were not set to weak
RxSwift was not being disposed of properly.
- I was at first doing pub/sub via Variables as a Global. When moving the observer into the root of my UIPageViewController, upon page breakdown the observers were disposed of causing the onComplete callback to hit.

UIPageViewController stacking ViewControllers when segueing to home page

1 Answers1