Swift viewWillAppear not being called after dismissing view controller

Question

I am presenting a view controller from a view controller called HomeController like so:

let viewController = self.storyboard?.instantiateViewController(withIdentifier: "LoginController") as! LoginController  let navigationController: UINavigationController = UINavigationController(rootViewController: viewController)  present(navigationController, animated: true, completion: nil) 

In the presented view controller LoginController at some point gets dismissed:

self.dismiss(animated: true, completion: nil) 

But when it comes back to HomeController it is not calling viewWillAppear, I really need to check on condition on HomeController when it comes back to it, So how can I call viewWillAppear when LoginController dismisses the view?

Answer 1

You need to set the correct presentationStyle. If you want that your presentedController will be fullScreen and call it the previous viewWillAppear, then you can use ".fullScreen"

let viewController = self.storyboard?.instantiateViewController(withIdentifier: "LoginController") as! LoginController  let navigationController: UINavigationController = UINavigationController(rootViewController: viewController)  navigationController.modalPresentationStyle = .fullScreen  present(navigationController, animated: true, completion: nil) 

Answer 2

In iOS 13 , if you are presenting a view controller and when you are coming back viewWillAppear doesn't get called . I have changed it from present to push view controller and methods are getting called now .