How to Navigate between Viewcontrollers without any action from user swift

Question

I have 2 view controllers and want to navigate from first one to the second without any user interaction but based on variable came from http request

Edit:- 1- I tried to use segue like this: self.performSegueWithIdentifier("updateuser", sender:nil) but it return no segue with identifier 'updateuser

2- i want to create navigation based on my variable without any user interaction

//first Viewcontroller

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()

    let mapViewControllerObj = self.storyboard?.instantiateViewControllerWithIdentifier("update") as? hhViewController
    self.navigationController?.pushViewController(mapViewControllerObj!, animated: true)
}

}

//second viewcontroller

class hhViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    view.backgroundColor = UIColor.whiteColor()


}

} enter image description here

i tried to use segue self.performSegueWithIdentifier("updateuser", sender:nil) but it return for me not identifier — Amal El-galant, Feb 20 '17 at 08:59
thanks but i want to create seque not based on any action from user it move to another controller based on my variable — Amal El-galant, Feb 20 '17 at 09:08

Jawla · Answer 1 · 2017-02-20T09:17:14.820

0

Programmatically in Swift3..I am not sure but you can try this in your function where you getting your variable value.

if var == "variablevalue" {
     navigationController?.pushViewController(FirstController(), animated: true)
} else {
    navigationController?.pushViewController(SecondController(), animated: true)
}

edited Feb 20 '17 at 09:17

answered Feb 20 '17 at 09:10

Jawla

333
2
11

If you didn't add any functionality in your viewDidload it will show you black view which is default. If you want to check your viewDidload working or not just change your background view color by doing - view.backgroundColor = .red – Jawla Feb 20 '17 at 10:37
i tried to change back ground color and it changed but it doesn't present view already exist in the storyboard – Amal El-galant Feb 20 '17 at 12:11
I am not storyboard type I do stuff programmatically..i found this http://stackoverflow.com/a/41095699/5891662 it might help you – Jawla Feb 20 '17 at 12:27

Anuraj · Accepted Answer · 2017-04-13T06:15:51.423

0

I think u do not require a segue for this. U can just push navigation Controller.

let storyBoardHome = UIStoryboard(name:storyBoardName, bundle: nil)

 let 1stViewController = storyBoardHome.instantiateViewController(withIdentifier: <1stViewControllerID>)


let 2ndViewController = storyBoardHome .instantiateViewController(withIdentifier: 2ndViewControllerID) 


self.navigationController?.pushViewController(1stViewController/2ndViewController, animated: true)

edited Apr 13 '17 at 06:15

answered Feb 20 '17 at 09:32

Anuraj

1,242
10
25

May be because u have not implemented any UI for that viewController..try putting break point in view did load. – Anuraj Feb 20 '17 at 09:49
i changed back ground color and it changed but it doesn't present view already exist in the storyboard – Amal El-galant Feb 20 '17 at 12:26
Not getting this scenario.. It would be nice if u share the code in ur viewController – Anuraj Feb 20 '17 at 12:40
i tried to create sample but to gives me an error please see edited post – Amal El-galant Feb 20 '17 at 13:21
So u want to navigate to hhViewController from ViewContoller right? – Anuraj Feb 20 '17 at 13:27
Actually the identifier "update" u have given is for segue. Give a storyBoardId which u find in identity inspector of viewController and use that when u push – Anuraj Feb 20 '17 at 13:29

How to Navigate between Viewcontrollers without any action from user swift

2 Answers2