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 v

Answer 1

I had to find the current viewController in AppDelegate. I used this

//at top of class
var window:UIWindow?

// inside my method/function
if let viewControllers = window?.rootViewController?.childViewControllers {
    for viewController in viewControllers {
        if viewController.isKindOfClass(MyViewControllerClass) {
            println("Found it!!!")
            }
        }
    }

Answer 2

Check that way that worked better for me What is .self

if ((self.window.rootViewController?.isKind(of: WebViewController.self))!)
{
  //code
}

Answer 3

let viewControllers = navController?.viewControllers
        for aViewController in viewControllers! {

            if aViewController .isKind(of: (MyClass?.classForCoder)!) {
                _ = navController?.popToViewController(aViewController, animated: true)
            }
        }

Answer 4

To go off of Thapa's answer, you need to cast to the viewcontroller class before using...

   if let wd = self.view.window {
        var vc = wd.rootViewController!
        if(vc is UINavigationController){
            vc = (vc as! UINavigationController).visibleViewController
        }
        if(vc is customViewController){
            var viewController : customViewController = vc as! customViewController

Answer 5

My suggestion is a variation on Kiran's answer above. I used this in a project.

Swift 5

// convenience property API on my class object to provide access to the my WindowController (MyController).
var myXWindowController: MyController? {

    var myWC: MyController?                
    for viewController in self.windowControllers {
        if ((viewController as? MyController) != nil) {
            myWC = viewController as? MyController
            break
        }
    }

    return myWC
}

// example of use
guard let myController = myXWindowController else {
    reportAssertionFailure("Failed to get MyXController from WindowController.")
    return
}  

Answer 6

 var top = window?.rootViewController
            while ((top?.presentedViewController) != nil) {
                top = top?.presentedViewController
            }
            
            if !(type(of: top!) === CallingVC.self) {
                top?.performSegue(withIdentifier: "CallingVC", sender: call)
            }