CODEWITHSUNDEEP
swiftxcodeuinavigationcontrolleruitabbarcontroller
Sagar
Sagar

Reputation: 1304

How to set UINavigationController as root from UITabBarController.?

I am working on App where Login is shown to user, after successful login user is landed on dashboard. where 4 tabs are shown to navigate to respective use. I have to use, UITabBarController for four tabs from dashboard and UINavigationController for navigation from LoginView.

I set my UITabBarController to navigationController, when user successfully logged in. Each view will have one logout button, on click of which I have to set my navigationcontroller back to root.

Here is code sample which I have done.

  1. My UITabBarController

    class TabBarVC: UITabBarController {

    let dashboardViewObj = DashboardVC()
let registerViewObj = RegisterVC()
let alertViewObj = AlertVC()
let historyViewObj = HistoryVC()
override func viewDidLoad() {
    super.viewDidLoad()
    self.viewControllers = [dashboardViewObj, registerViewObj,historyViewObj,alertViewObj]
    // Do any additional setup after loading the view.

    dashboardViewObj.tabBarItem = UITabBarItem(tabBarSystemItem: .search, tag: 0)
    registerViewObj.tabBarItem = UITabBarItem(tabBarSystemItem: .history, tag: 0)
    historyViewObj.tabBarItem = UITabBarItem(tabBarSystemItem: .contacts, tag: 0)
    alertViewObj.tabBarItem = UITabBarItem(tabBarSystemItem: .bookmarks, tag: 0)
}

  2. In my LoginViewContoller

let tabbarObj = TabBarVC()

@IBAction func loginBtnClicked(_ sender: Any) {        
            self.navigationController?.setViewControllers([tabbarObj], animated: true)
        }

Now on click of logout button from any of these views, I need to set navigationController as root. How to do it...?

Following chart will help to understand what I need. Any help will be appeciated.

enter image description here

Upvotes: 1

Views: 203

Answers (3)

Sagar
Sagar

Reputation: 1304

@frzi :- Thank you very much for answers and correction from comment section.

I just did what you suggested. The following line is corrected in my LoginViewController.

self.navigationController?.setViewControllers([tabbarObj], animated: true)

To updated line as 

self.navigationController?.pushViewController(tabbarObj, animated: true)

And on Logout button action just added the line,

self.tabBarController?.navigationController?.popViewController(animated: true)

and it worked... Cheers J...

Upvotes: 2

Vipin Pareek
Vipin Pareek

Reputation: 246

When you are login all you need to put this code in your logout button action and it will redirect you to login page.

   var window: UIWindow?
   let appDelegate:AppDelegate = UIApplication.shared.delegate as! AppDelegate

      let VC = self.appDelegate.storyboard1.instantiateViewController(withIdentifier: "Your controller name") as! loginViewController
            self.appDelegate.navigationController = UINavigationController(rootViewController: VC)
            self.appDelegate.navigationController?.navigationBar.isHidden = true
            self.appDelegate.window?.rootViewController = self.appDelegate.navigationController
            self.appDelegate.window?.makeKeyAndVisible()

it will work.

Upvotes: 1

Arash Etemad
Arash Etemad

Reputation: 1909

You can use unwind segue easily instead of setting the root view controller or pop view controller or even dismiss methods!
See this for full description

Upvotes: 1

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