Programmatically navigate to another view controll

Question

I got an error message during navigating from first view controller to second view controller. My coding is like this one

let vc = LoginViewController(nibName: "LoginViewController", bundle: nil)
self.navigationController?.pushViewController(vc, animated: true)

The problem is I always got this kind of error message

2014-12-09 16:51:08.219 XXXXX[1351:60b] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not load NIB in bundle: 'NSBundle </var/mobile/Applications/FDC7AA0A-4F61-47E7-955B-EE559ECC06A2/XXXXX.app> (loaded)' with name 'LoginViewController''
*** First throw call stack:
(0x2efcaf0b 0x39761ce7 0x2efcae4d 0x31b693f9 0x31ac1eaf 0x3191e365 0x317fe895 0x318a930d 0x318a9223 0x318a8801 0x318a8529 0x318a8299 0x318a8231 0x317fa305 0x3147631b 0x31471b3f 0x314719d1 0x314713e5 0x314711f7 0x3146af1d 0x2ef96039 0x2ef939c7 0x2ef93d13 0x2eefe769 0x2eefe54b 0x33e6b6d3 0x3185d891 0x4ccc8 0x4cd04 0x39c5fab7)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)

Answer 1

See mine.

func actioncall () {
    let loginPageView = self.storyboard?.instantiateViewControllerWithIdentifier("LoginPageID") as! ViewController
    self.navigationController?.pushViewController(loginPageView, animated: true)
}

If you use presenting style, you might lose the page's navigation bar with preset pushnavigation.

Answer 2

I think you are looking for something like this:

let signUpViewController = SignUpViewController()
present(signUpViewController, animated: true, completion: nil)

If you want full screen of the new page:

present(signUpViewController, animated: true, completion: nil)

Hope this helps :)

Answer 3

XCODE 8.2 AND SWIFT 3.0

Present an exist UIViewController

let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! LoginViewController
self.present(loginVC, animated: true, completion: nil)

Push an exist UIViewController

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

Remember that you can put the UIViewController Identifier following the next steps:

• Select Main.storyboard
• Select your UIViewController
• Search the Utilities in the right
• Select the identity inspector
• Search in section identity "Storyboard ID"
• Put the Identifier for your UIViewController

Answer 4

Programmatically there are different ways based on different situations

1. load storyenter code hereboard nib file

   let yourVc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "YourViewController") as! YourViewController;
   self.present(yourVc, animated: true, completion: nil)
   

2. Load from xib

   let yourVc = YourViewController.init(nibName: "YourViewController", bundle: nil)
   self.present(yourVc, animated: true, completion: nil)
   

3. Navigate through Segue

   self.performSegue(withIdentifier: "your UIView", sender: self)
   

Answer 5

I Give you my code to make a transition. In this example the action is connecting to an UIButton. So don't forget to set it. Don't forget to set the name of your ViewController in the transition method.

Don't forget to set your storyboard too. Your need to have one view per viewController. Connect each ViewController to each view in storyBoard. You can see on the screenshoot bellow

class PresentationViewController: UIViewController {
    override func viewDidLoad() {
         super.viewDidLoad()

         var playButton   = UIButton.buttonWithType(UIButtonType.System) as UIButton

         let image = UIImage(named: "YourPlayButton") as UIImage?

         playButton.frame = CGRectMake(0, 0, 100, 100)
         playButton.center = CGPointMake(self.view.frame.width/2, self.view.frame.height/2)
         playButton.addTarget(self, action: "transition:", forControlEvents:  UIControlEvents.TouchUpInside)
         playButton.setBackgroundImage(image, forState: UIControlState.Normal)

         self.view.addSubview(playButton)
    }


func transition(sender:UIButton!)
{
    println("transition")
    let secondViewController = self.storyboard?.instantiateViewControllerWithIdentifier("YourSecondViewController") as UIViewController

    let window = UIApplication.sharedApplication().windows[0] as UIWindow
    UIView.transitionFromView(
        window.rootViewController!.view,
        toView: secondViewController.view,
        duration: 0.65,
        options: .TransitionCrossDissolve,
        completion: {
            finished in window.rootViewController = secondViewController
    })
}
}

Answer 6

let signUpVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "SignUp")
// self.present(signUpVC, animated: false, completion: nil)
self.navigationController?.pushViewController(signUpVC, animated: true)