How do I observe app lifecycle events in SwiftUI with Swift?

In SwiftUI, observing app lifecycle events can be achieved through the use of the `onAppear` and `onDisappear` modifiers, as well as utilizing the `@ScenePhase` environment variable. Here's how you can manage and respond to the lifecycle events of your SwiftUI application:


    import SwiftUI

    @main
    struct MyApp: App {
        // Observing the app's scene phase
        @Environment(\.scenePhase) var scenePhase

        var body: some Scene {
            WindowGroup {
                ContentView()
                    .onChange(of: scenePhase) { newPhase in
                        switch newPhase {
                        case .active:
                            print("App is active")
                        case .inactive:
                            print("App is inactive")
                        case .background:
                            print("App is in background")
                        @unknown default:
                            print("Unknown state")
                        }
                    }
            }
        }
    }

    struct ContentView: View {
        var body: some View {
            Text("Hello, World!")
                .onAppear {
                    print("ContentView appeared")
                }
                .onDisappear {
                    print("ContentView disappeared")
                }
        }
    }

How do I observe app lifecycle events in SwiftUI with Swift?

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How do I observe app lifecycle events in SwiftUI with Swift?

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