performSegue not working FireBase while checking the user is authenticated Swift 3/4

Question

I just finish a tutorial video of letsbuildthatapp about firebase mixed with social login.

I currently trying to perform a segue if the user is already authenticated.

I print something in my if and just after I performSegue with a segue who I know work because I'm using it for a test.

there is my code

func verifDejaConnecter() {
    if Auth.auth().currentUser?.uid != nil {
        performSegue(withIdentifier: "segueAccueilToPres", sender: nil)
        print("test")
    } else {
        return
    }
}

mySegue is created and works but nothing append here.

In the console I can see the test resulting from the print in the if ... but nothing is mooving

Answer 1

Try this:

func verifDejaConnecter() {
  if Auth.auth().currentUser?.uid != nil {
    DispatchQueue.main.async {
      self.performSegue(withIdentifier: "segueAccueilToPres", sender: self)
        print("test")
    }
  } else {
    return
  }
}