https://stackoverflow.com/questions/43160615/how-to-setup-viewcontroller-in-playgrounds import UIKit import PlaygroundSupport class ViewController:UIViewController { override func viewDidLoad() { super.viewDidLoad() } } let viewController = ViewController() PlaygroundPage.current.liveView = viewController PlaygroundPage.current.needsIndefiniteExecution = truelive view 가 보이지 않는다면View > Assistant ..