Creating and displaying ViewController in Swift: complete guide

Hello everyone! I'm new to Swift and iOS development, transitioning from Objective-C. I have a problem with creating and displaying a new ViewController programmatically (without Storyboard). In Objective-C I just did: ```objc MyViewController *vc = [[MyViewController alloc] init]; [self presentViewController:vc animated:YES completion:nil]; ``` But in Swift it doesn't work as simply. I tried: ```swift let vc = MyViewController() self.present(vc, animated: true, completion: nil) ``` But nothing happens — the screen just doesn't appear. I've read that you need to use Storyboard or XIB, but I need to do everything programmatically. I also tried: ```swift let storyboard = UIStoryboard(name: "Main", bundle: nil) let vc = storyboard.instantiateViewController(withIdentifier: "MyVC") ```