How to remove Scene Delegate from iOS Application? - ios

Question

I have created the iOS Project in Xcode 11.1. I need to remove scene delegate from the application.

Answer 1

You need to do the following steps:
Remove Scene delegate methods from App Delegate and delete the Scene delegate file.
You need to remove UIApplicationSceneManifest from Info.plist.
You also need to add var window:UIWindow? if it is not present in AppDelegate

Answer 2

Remove SceneDelegate.swift file
Remove Application Scene Manifest from Info.plist file
Add var window: UIWindow? to AppDelegate.swift
Replace #main with #UIApplicationMain
Remove UISceneSession Lifecycle ( functions ) in AppDelegate

Answer 3

It is a complete solution for empty project generated with Xcode (with storyboard)
Remove SceneDelegate.swift file
Remove Application Scene Manifest from Info.plist file
Paste this code to your AppDelegate.swift file
import UIKit
#main
class AppDelegate: UIResponder, UIApplicationDelegate {
var window:UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
self.window = UIWindow(frame: UIScreen.main.bounds)
window?.rootViewController = UIStoryboard(name: "Main", bundle: nil).instantiateInitialViewController()
window?.makeKeyAndVisible()
return true
}
}

Answer 4

Adding on to milzi's answer
Remove SceneDelegate.swift file
Remove Application Scene Manifest from Info.plist file
Remove UISceneSession Lifecycle function from your AppDelegate class
Add var window: UIWindow? in your AppDelegate class as a instance property
Replace #main attribute with #UIApplicationMain attribute (This saves as to manually create and assign window)
Below is how you how your AppDelegate should look like after changes:
import UIKit
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
return true
}
}

Answer 5

To add to accepted answer: you also need to write this in your AppDelegate:
self.window = UIWindow(frame: UIScreen.main.bounds)
let controller = MyRootViewController()
window?.rootViewController = controller
window?.makeKeyAndVisible()

Answer 6

Just in case if you are developing in Objective-C, add window property in the AppDelegate.h file like this:
#interface AppDelegate : UIResponder <UIApplicationDelegate>
#property (strong, nonatomic) UIWindow *window;
#end
No need to initialise the window. It will work automatically.