iOS 시뮬레이터를 실행할 때 검은 화면

다음과 같이 창을 초기화해야합니다.

 

1. class AppDelegate: UIResponder, UIApplicationDelegate {
2. //Add this line
3. var window: UIWindow?
4. func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
5. // Override point for customization after application launch.
6. return true
7. }
8. ...
9. }