How to navigate one page to another page in swift?

Question

I'm working on data passing from one view to another in Swift. I'm using the following code:

@IBAction func loginAction(sender: AnyObject) {
let nextViewController = NextViewController(nibName: "NextViewController", bundle: nil) 
self.navigationController?.pushViewController(nextViewController, animated: true) 
}

However it will not navigate second page, why?

you could check another question of this type: http://stackoverflow.com/questions/27374759/swift-programmatically-navigate-to-another-view-controller-scene — Laura Calinoiu, Feb 11 '16 at 11:49
Possible duplicate of [How to Navigate from one View Controller to another using Swift](http://stackoverflow.com/questions/24038215/how-to-navigate-from-one-view-controller-to-another-using-swift) — Abhijeet, Feb 11 '16 at 12:06
But I'm not using Storyboard, I'm using only XIB. __Laura Calinoiu — nandu kathmandi, Feb 11 '16 at 12:26
In Objective C I wrote below code of navigation of one page to another page. NextViewController *nextViewController = [[NextViewController alloc]initWithNibName:@"NextViewController" bundle:nil]; [self.navigationController pushViewController: nextViewController animated:YES]; — nandu kathmandi, Feb 11 '16 at 13:26
OK, I'll ask a different way. What do you see if you print the value of `self.navigationController`? — Phillip Mills, Feb 12 '16 at 13:52

score 0 · Answer 1 · answered Mar 11 '16 at 07:59

If you are not using StoryBoard, you can use the following code: AppDelegate.swift

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    var userInputViewContrller: UserInputViewController = UserInputViewController()
    var navigationViewController: UINavigationController = UINavigationController()


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

        self.window = UIWindow.init(frame: UIScreen.mainScreen().bounds)
        self.window?.backgroundColor = UIColor.whiteColor()
        self.navigationViewController = UINavigationController.init(rootViewController: userInputViewContrller)
        self.window?.rootViewController = self.navigationViewController
        self.window?.makeKeyAndVisible()

        return true
    }

Now you have set the rootViewController for window as your naviagationViewController which is initialised with variable for the page "userInputViewContrller"

import UIKit

class UserInputViewController: UIViewController {

    override func viewWillAppear(animated: Bool) {

        let viewFrame = CGRect(x: 1, y: 30, width: 373, height: 635)
        let view: UIView = UIView(frame: viewFrame)
        self.view.addSubview(view)

        let clickMeButton:UIButton = UIButton()
        let nextButtonFrame = CGRect(x: 200, y: 275, width: 150, height: 30)
        nextButton = UIButton(frame: nextButtonFrame)
        clickMeButton.setTitle("Click here", forState: UIControlState.Normal)
        clickMeButton.addTarget(self, action: "clickMeTapped:", forControlEvents: UIControlEvents.TouchUpInside)
        view.addSubview(clickMeButton)
    }

    func clickMeTapped(sender: UIButton){
        let itemViewController = ItemViewController()
        self.navigationController?.pushViewController(itemViewController, animated: true)
    }
}

On click of "Click here" button in UserInputViewController you will be navigated to the next screen itemViewController.

import UIKit

class ItemViewController: UIViewController {
    override func viewWillAppear(animated: Bool) {
        //View

        let viewFrame = CGRect(x: 1, y: 30, width: 373, height: 635)
        let view: UIView = UIView(frame: viewFrame)
        self.view.addSubview(view)

        //Header Label
        let headerLabelFrame = CGRect(x: 25, y: 50, width: 325, height: 30)
        var headerLabel:UILabel = UILabel()
        headerLabel = UILabel(frame: headerLabelFrame)
        headerLabel.text = "Hello I'm in itemViewVireControllr"
        view.addSubview(headerLabel)
  }
}

How to navigate one page to another page in swift?

1 Answers1