UINavigationContoller(rootViewController: ViewController()) inside SceneDelegate Xcode 15.0 programm-CodePudding

I can't get a result like in the screenshoot. enter image description here Here is an example of my code inside of SceneDelegate

SceneDelegate

class SceneDelegate: UIResponder, UIWindowSceneDelegate {

   var window: UIWindow?
   
   func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    guard let windowScene = (scene as? UIWindowScene) else { return }
    window = UIWindow(frame: windowScene.coordinateSpace.bounds)
    window?.windowScene = windowScene
    window?.rootViewController = UINavigationController(rootViewController: ViewController())
    window?.makeKeyAndVisible()
   }
}

Unfortunately I can't get the expected result. enter image description here Please help me to understand the structure of making app with UiNavController inside SceneDelegate. I'm learning to make the apps only programmatically without StoryBoard Version of Xcode is 15.0

CodePudding user response：

 func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        guard let scene = (scene as? UIWindowScene) else { return }
        window = UIWindow(windowScene: scene)
        window?.overrideUserInterfaceStyle = .light // for light mode supported only 
        window?.rootViewController = BaseNavigationController(rootViewController: ViewController())
        window?.makeKeyAndVisible()
    }

the base navigationController is

import UIKit

class BaseNavigationController: UINavigationController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        if #available(iOS 15.0, *) {
            let navigationBarAppearance = UINavigationBarAppearance()
            navigationBarAppearance.configureWithDefaultBackground()
            navigationBarAppearance.backgroundImage = UIImage(named: "NavBarBg") // if wanna add bg image 
            navigationBarAppearance.backgroundColor = .white // white bar color
            
            UINavigationBar.appearance().standardAppearance = navigationBarAppearance
            UINavigationBar.appearance().compactAppearance = navigationBarAppearance
            UINavigationBar.appearance().scrollEdgeAppearance = navigationBarAppearance
            navigationBar.tintColor = .white
            navigationBar.isTranslucent = false
        }
    }
}