Get the current view controller from the app delegate

Question

i am new to ios. I need to know the current view controller from app delegate.. i have no idea about this and i don\'t knowto implement this. i am using this code toimplemn

Answer 1

|*| Get Visible View Controller from Navigation View Controller

let NavVccVar = UIApplication.sharedApplication().keyWindow?.rootViewController as! UINavigationController
let ShnSrnVar = NavVccVar.visibleViewController

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|*| Presenting from the Visible View Controller

let NavVccVar = UIApplication.sharedApplication().keyWindow?.rootViewController as! UINavigationController
NavVccVar.visibleViewController!.presentViewController(NamVccVar, animated: true, completion: nil)