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iOS

Posted by Michael Lee
Michael Lee
2,855 Points

How do I set the root view controller in Swift?

I am not using the storyboard, and would like to programatically set the root view controller such that it is the first view controller which loads when a person launches the app.

This is my code in app delegate so far:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    self.window = UIWindow(frame: UIScreen.mainScreen().bounds)

    // Override point for customization after application launch.
    let vc = ViewController()
    let navigationController = UINavigationController(rootViewController: vc)
    self.window!.rootViewController = navigationController
    self.window!.makeKeyAndVisible()
    navigationController.setNavigationBarHidden(true, animated: false)
    self.window!.backgroundColor = UIColor.whiteColor()
    return true
}

However, it does not seem to be working, as I get a white screen instead of a UIViewController, black if i delete

self.window!.backgroundColor = UIColor.whiteColor()