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"Uplift iOS Interview" is a comprehensive guide to help aspiring iOS developers soar to new heights in their careers. This book is an indispensable tool for anyone looking to crack the iOS interview and impress their future employers with their technical prowess. With in-depth coverage of Swift, AutoLayout, SwiftUI, Multithreading, Memory management so on and so forth, this book is a treasure trove of knowledge for anyone looking to uplift their iOS development career.
In order to display the notification when the app is foreground/open, you need to add a delegate method. You have to implement UNUserNotificationCenterDelegate in order to get the local notification when the app is open.
Add the following extension in AppDelegate
// Conform to UNUserNotificationCenterDelegate to show local notification in foreground extension AppDelegate: UNUserNotificationCenterDelegate { func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) { completionHandler([.alert, .badge, .sound]) } }
Add don’t forget to add this
UNUserNotificationCenter.current().delegate = self
in application’s didFinishLaunchingWithOptions function.
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool { // Show local notification in foreground UNUserNotificationCenter.current().delegate = self return true }
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If you are using SwiftUI’s new app cycle “SwiftUI App” then the following code can help you.
class AppDelegate: NSObject, UIApplicationDelegate { func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool { // Show local notification in foreground UNUserNotificationCenter.current().delegate = self return true } } // Conform to UNUserNotificationCenterDelegate to show local notification in foreground extension AppDelegate: UNUserNotificationCenterDelegate { func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) { completionHandler([.alert, .badge, .sound]) } } @main struct MyTestApp: App { @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate var body: some Scene { WindowGroup { ContentView() } } }
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