How do you check current view controller class in Swift?

Question

As far as I know, this would work in Objective-C:

self.window.rootViewController.class == myViewController 

How can I check if the current view controller is a specific one?

Answer 1

To check the class in Swift, use "is" (as explained under "checking Type" in the chapter called Type Casting in the Swift Programming Guide)

if self.window.rootViewController is MyViewController {     //do something if it's an instance of that class } 

Answer 2

Updated for swift3 compiler throwing a fit around ! and ?

if let wd = UIApplication.shared.delegate?.window {         var vc = wd!.rootViewController         if(vc is UINavigationController){             vc = (vc as! UINavigationController).visibleViewController          }          if(vc is LogInViewController){             //your code         }     }