Push view controller not working in Swift

Question

        let storyboard = UIStoryboard(name: "Main", bundle: nil)
        let playGameViewController = (storyboard.instantiateViewController(withIdentifier: "PlayGameViewController") as! PlayGameViewController)
        self.navigationController?.pushViewController(playGameViewController, animated: true)

push not worked but I tried present working, I want navigate with push.

Please explain what exactly is not working.

koen
– koen

2020-02-03 16:49:57 +00:00
Commented Feb 3, 2020 at 16:49 — koen
– koen, Commented Feb 3, 2020 at 16:49
not change view controller

Ashot Khachatryan
– Ashot Khachatryan

2020-02-03 17:01:54 +00:00
Commented Feb 3, 2020 at 17:01 — Ashot Khachatryan
– Ashot Khachatryan, Commented Feb 3, 2020 at 17:01
Are you sure your navigationController is not nil?

koen
– koen

2020-02-03 17:32:23 +00:00
Commented Feb 3, 2020 at 17:32 — koen
– koen, Commented Feb 3, 2020 at 17:32

Frankenstein · Accepted Answer · 2020-02-03 17:36:54Z

4

Try running the below code to know where you have gone wrong.

let storyboard = UIStoryboard(name: "Main", bundle: nil)
guard let playGameViewController = storyboard.instantiateViewController(withIdentifier: "PlayGameViewController") as? PlayGameViewController else {
    print("This means you haven't set your view controller identifier properly.")
    return
}
guard let navigationController = navigationController else {
    print("This means you current view controller doesn't have a navigation controller")
    return
}
navigationController.pushViewController(playGameViewController, animated: true)

Try using breakpoints to figure out if any variable is nil. In your case, there is more probability for having your navigationController being nil.

answered Feb 3, 2020 at 17:36

Frankenstein

16.3k4 gold badges26 silver badges52 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Push view controller not working in Swift

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related