[iOS] SceneDelegate 삭제하기

SceneDelegate 삭제하는 법을 알아보자

 

 

 

SceneDelegate는 iOS 13부터 새로 추가되어 Xcode11부터 SceneDelegate가 기본 iOS 앱 프로젝트 템플릿으로 자동추가됩니다.

그냥 지우고 빌드하면 검은 화면이 나오기 때문에, 

다음 과정을 따르면 확.실.하.게. 삭제할 수 있습니다👻

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1.  Info.plist에서 Application Scene Manifest 삭제

 

 

삭제 안하는 경우 아래 에러발생 >>

13:23:49.218883+0900 FunctionList_Objc[45720:3662506] [SceneConfiguration] Info.plist configuration "Default Configuration" for UIWindowSceneSessionRoleApplication contained UISceneDelegateClassName key, but could not load class with name "SceneDelegate".

 

2.  프로젝트에서 SceneDelegate.swift 파일 삭제

 

3.  AppDelegate.swift 내 UISceneSession 과 관련된 두 메소드 삭제

// MARK: UISceneSession Lifecycle

func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
    // Called when a new scene session is being created.
    // Use this method to select a configuration to create the new scene with.
    return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
}

func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
    // Called when the user discards a scene session.
    // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
    // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}

 

4.  SceneDelegate.swift 로 옮겨진 window 프로퍼티를 AppDelegate.swift에 추가

// AppDelegate.swift
var window: UIWindow?

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
	// 하나의 씬에 해당되는 윈도우 생성
	self.window = UIWindow(windowScene: scene as! UIWindowScene)
        
	// 객체 생성
	let vc = UINavigationController()
	vc.view.backgroundColor = .white
        
	// 윈도우의 루트 뷰 컨트롤러로 등록
	self.window?.rootViewController = vc
	
    return true
}

window 추가하지 않는 경우!! 

* reason: '-[AppDelegate setWindow:]: unrecognized selector sent to instance 0x600000f20080' 에러 발생