How to set the rootViewController with Swift, iOS 7

Question

I want to set the rootViewController in the app delegate ..

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDicti         


        

Answer 1

If you are using a storyboard and want to set your rootViewController programmatically, first make sure the ViewController has a Storyboard ID in the Identity Inspector. Then in the AppDelegate do the following:

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

   // get your storyboard
   let storyboard = UIStoryboard(name: "Main", bundle: nil)

   // instantiate your desired ViewController
   let rootController = storyboard.instantiateViewControllerWithIdentifier("MyViewController") as! UIViewController

   // Because self.window is an optional you should check it's value first and assign your rootViewController
   if let window = self.window {
      window.rootViewController = rootController
   }

   return true
}