What is the @UIApplicationDelegateAdaptor property wrapper?
Updated for Xcode 13.0 beta 2
New in iOS 14
If you need to get access to AppDelegate functionality in SwiftUI, you should create a class that inherits from NSObject and UIApplicationDelegate, and give it any functionality you want, such as this:
class AppDelegate: NSObject, UIApplicationDelegate {
// add app delegate methods here
}For example, if you wanted to implement the old didFinishLaunchingWithOptions method, you might use this:
class AppDelegate: NSObject, UIApplicationDelegate {
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
print("Your code here")
return true
}
}Once you have that, use the UIApplicationDelegateAdaptor property wrapper in your main App so that SwiftUI knows to create and manage your app delegate class:
@main
struct NewIn14App: App {
@UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
var body: some Scene {
WindowGroup {
ContentView()
}
}
}
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