En Swift 4.1 y Xcode 10
Aquí AddFileViewController es el segundo controlador de vista.
La identificación del guión gráfico es AFVC
let next = self.storyboard?.instantiateViewController(withIdentifier: "AFVC") as! AddFileViewController
self.present(next, animated: true, completion: nil)
let dashboard = self.storyboard?.instantiateViewController(withIdentifier: "DBVC") as! DashboardViewController
self.navigationController?.pushViewController(dashboard, animated: true)
Si es necesario, utilice hilo.
Ex:
DispatchQueue.main.async {
let next = self.storyboard?.instantiateViewController(withIdentifier: "AFVC") as! AddFileViewController
self.present(next, animated: true, completion: nil)
}
Si quieres mudarte después de un tiempo.
EX:
DispatchQueue.main.asyncAfter(deadline: .now() + 5.0) {
let next = self.storyboard?.instantiateViewController(withIdentifier: "AFVC") as! AddFileViewController
self.present(next, animated: true, completion: nil)
}