How to change RootViewController in AppDelegate From Other ViewController?

Question

This is didFinishLaunchingWithOptions Method in AppDelegate. Let me explain scenario, I have developed sideMenu like facebook in my app, but now I have to change the sideMenu li

Answer 1

With Storyboard

Inside another ViewController you can use this code:

self.view.window.rootViewController = [self.view.window.rootViewController.storyboard   instantiateViewControllerWithIdentifier:@"**STORYBOARD ID**"];

Inside AppDelegate:

self.window.rootViewController = [self.window.rootViewController.storyboard instantiateViewControllerWithIdentifier:@"**STORYBOARD ID**"];

Answer 2

Knowledge Sharing Using Swift:

Changing root view controller from class other than app delegate.swift

let appdelegate = UIApplication.sharedApplication().delegate as! AppDelegate
let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
var homeViewController = mainStoryboard.instantiateViewControllerWithIdentifier("HomeViewController") as! HomeViewController
let nav = UINavigationController(rootViewController: homeViewController)
appdelegate.window!.rootViewController = nav

Changing rootviewcontroller With Animation can be achieve with:

UIView.transitionWithView(self.window!, duration: 0.5, options: UIViewAnimationOptions.TransitionFlipFromLeft, animations: {
      self.window?.rootViewController = anyViewController
}, completion: nil)

We can write generalise method too similar to this.

Hope this will helpful for someone.

Answer 3

Try this:

<YourAppDelegateClass> *app = [[UIApplication sharedApplication] delegate];
app.window.rootViewController = <YourRootViewController>;

Don't forget to include necessary headers (your AppDelegate, for example) or you'll get CE. This one seems to work: