How can I set rootview of a viewcontroller when I have set Tabbar in appdelegate swift?

Question

I have set UITabBarController in AppDelegate and I have set the root view to tab bar object. But I need to set root view to another view controller without losing the functionalities of tab bar. How can I achieve that?

  let vc1 = ConstituencyViewController()
    //vc1.view.backgroundColor = UIColor.orange
    vc1.tabBarItem.title = "Search"
    vc1.tabBarItem.image = UIImage(named: "Search")

    // Set up the second View Controller
    let vc2 = ConstDetailViewController()
    //vc2.view.backgroundColor = UIColor.purple
    vc2.tabBarItem.title = "User"
    vc2.tabBarItem.image = UIImage(named: "Street View")

    // Set up the Tab Bar Controller to have two tabs
    let tabBarController = UITabBarController()

    tabBarController.viewControllers = [vc1, vc2]

    // Make the Tab Bar Controller the root view controller
    window?.rootViewController = tabBarController
    window?.makeKeyAndVisible()

What do you mean by without loosing the functionalities of tab bar ??? — Vishal Sonawane, Dec 14 '16 at 10:43
@VishalSonawane I mean from the viewcontroller which I am setting in rootview will direct to viewcontroller in tabbar. So How I will set the root view.? — Rakesh Mohan, Dec 14 '16 at 10:46
Will you be using both TabbarController and the another VC ? — Vishal Sonawane, Dec 14 '16 at 10:49
@VishalSonawane. Yes. I need both. from the button action in VC I have to move to the tabbar VC. — Rakesh Mohan, Dec 14 '16 at 10:50
@VishalSonawane I got the below error message for your solution. I commented it in your answer — Rakesh Mohan, Dec 14 '16 at 11:23

score 1 · Accepted Answer · edited Dec 14 '16 at 12:19

1

 let appDelegate = UIApplication.shared.delegate as! AppDelegate

    let vc1 = ConstDetailViewController()
            //vc1.view.backgroundColor = UIColor.orange
            vc1.tabBarItem.title = "Search"
            vc1.tabBarItem.image = UIImage(named: "Search")

    let vc2 = OptionsViewController()

    vc2.tabBarItem.title = "Search"
    vc2.tabBarItem.image = UIImage(named: "Street View")

            // Set up the second View Controller

            //vc2.view.backgroundColor = UIColor.purple

            // Set up the Tab Bar Controller to have two tabs
            let tabBarController = UITabBarController()

            tabBarController.viewControllers = [vc1,vc2]
    appDelegate.window?.rootViewController = tabBarController
    appDelegate.window?.makeKeyAndVisible()

edited Dec 14 '16 at 12:19

Rakesh Mohan

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answered Dec 14 '16 at 10:57

Vishal Sonawane

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I got this error message while trying your solution: "Application windows are expected to have a root view controller at the end of application launch" – Rakesh Mohan Dec 14 '16 at 11:19
I have used the above code in your comment section. I have used it in button action. Seems to be working. Please check – Rakesh Mohan Dec 14 '16 at 12:08
@RakeshMohan Done – Vishal Sonawane Dec 14 '16 at 12:20

How can I set rootview of a viewcontroller when I have set Tabbar in appdelegate swift?

1 Answers1