Get Instance Of ViewController From AppDelegate In Swift

appdelegate, ios, swift

Solution

You could try:

let rootViewController = self.window!.rootViewController
let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let setViewController = mainStoryboard.instantiateViewControllerWithIdentifier("CurrentShows") as! DetailViewController
rootViewController?.navigationController?.popToViewController(setViewController, animated: false)

Swift 3:

let mainStoryboard = UIStoryboard(name: "Main", bundle: nil)
let controller = mainStoryboard.instantiateViewController(withIdentifier: "viewController")
self.present(viewController, animated: true, completion: nil)

Problem

I am trying to load a specific ViewController from the app delegate in swift when a user clicks a UILocalNotification. I have figured out that this is called in this function: ``` func application(application: UIApplication!, didReceiveLocalNotification notification: UILocalNotification!) ``` But when I try and access one of the open ViewControllers I think it's returning null because my application is crashing. Here is what I am trying: ``` var rootViewController = self.window!.rootViewController var storyBoard = rootViewController.storyboard var setViewController = storyBoard.instantiateViewControllerWithIdentifier("CurrentShows") as ViewController_CurrentShows rootViewController.navigationController.popToViewController(setViewController, animated: false) setViewController.reloadData() ``` It's crashing on the popToViewController line.

Original source