Functions of AppDelegate not being called - ios

Question

I have a problem with one of my apps. I noticed, that my Controller is still updating while the app is in the background. The reason for this is that the methods of the AppDelegate are not being called and I can not find out why.
Here is my code:
import UIKit
import Harmony
#UIApplicationMain
class AppDelegate : UIResponder
{
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool
{
return true
}
}
extension AppDelegate : UIApplicationDelegate
{
func applicationDidBecomeActive(_ application: UIApplication)
{
Swift.print("applicationDidBecomeActive")
Notifications.post(UIApplication.didBecomeActiveNotification.rawValue)
}
func applicationWillResignActive(_ application: UIApplication)
{
Swift.print("applicationWillResignActive")
Notifications.post(UIApplication.willResignActiveNotification.rawValue)
}
func applicationWillEnterForeground(_ application: UIApplication)
{
Swift.print("applicationWillEnterForeground")
Notifications.post(UIApplication.willEnterForegroundNotification.rawValue)
}
}
I tried the following:
Use real device and simulator.
Restart Xcode, clean build folder.
Clean Developer folder
Do not use the extension.
Debug or Release scheme
Nothing had an effect, the methods are still not being called and I am wondering why?

Answer 1

If you are using ios 13 with scene delegate .. all functions are shifted in scene delegate instead of AppDelegate
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
var window: UIWindow?
func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
// Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
// If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
// This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
guard let _ = (scene as? UIWindowScene) else { return }
}
func sceneDidDisconnect(_ scene: UIScene) {
// Called as the scene is being released by the system.
// This occurs shortly after the scene enters the background, or when its session is discarded.
// Release any resources associated with this scene that can be re-created the next time the scene connects.
// The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
}
func sceneDidBecomeActive(_ scene: UIScene) {
// Called when the scene has moved from an inactive state to an active state.
// Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
}
func sceneWillResignActive(_ scene: UIScene) {
// Called when the scene will move from an active state to an inactive state.
// This may occur due to temporary interruptions (ex. an incoming phone call).
}
func sceneWillEnterForeground(_ scene: UIScene) {
// Called as the scene transitions from the background to the foreground.
// Use this method to undo the changes made on entering the background.
}
func sceneDidEnterBackground(_ scene: UIScene) {
// Called as the scene transitions from the foreground to the background.
// Use this method to save data, release shared resources, and store enough scene-specific state information
// to restore the scene back to its current state.
}
}