ios – Add again button to Navigation Bar after segue from SKScene

I’ve a GameViewController that segues to a NavigationController after which to SettingsViewController. All the pieces works as anticipated.

I wish to add a < Finished or < Again button to the left facet of the nav bar, to return to the GameViewController as soon as completed. How do I do that programmatically?

The UI is fully created programmatically, since most of it’s primarily based in SpriteKit. The Interface Builder has principally nothing aside from the empty controllers.

In GameViewController set the worth so it may be accessed later:

class GameViewController: UIViewController
{
    override func viewDidLoad()
    {
        tremendous.viewDidLoad()
        ...
        scene.viewController = self
        ...
    }

}

Then within the GameScene of GameViewController retrieve and carry out the segue:

class GameScene: SKScene
{
    weak var viewController: UIViewController?

    ...

    // Carry out the segue when an SKSpriteNode is touched
    `viewController?.performSegue(withIdentifier: "GoToSettingsSegue", sender: viewController)`
}

Lastly, in SettingsViewController, create the UI programmatically and add a title:

class SettingsViewController: UIViewController, UITableViewDelegate, UITableViewDataSource
{ 
    override func viewDidLoad()
    {
        tremendous.viewDidLoad()
        configure()
        title = "Settings"
        ...
    }
}

Based mostly on some analysis up to now, I do know that the Again/Finished navigation merchandise belongs to the earlier UIViewController, not the present one. So, in my case, it must be added to the GameViewController, to not the SettingsViewController, proper?

Another analysis additionally introduced up the priority of eradicating views from the stack so it does not decelerate an excessive amount of for those who commute a number of occasions.

How do I add that programmatically to GameViewController and/or GameScene and set the motion/goal to principally segue again from SettingsViewController to GameViewController? I am new to iOS growth so I am not fully positive.