Testing silent push notifications in Xcode11.4 beta

Question

I want to test notifications in Xcode 11.4 simulator and everything works well except silent notifications. didReceiveRemoteNotification is not triggered.

What I've done:

Enabled Push Notifications in Background Modes/Remote Notifications in Capabilities

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound]) { granted, _ in
        if granted {
            DispatchQueue.main.async {
                UIApplication.shared.registerForRemoteNotifications()
            }
        }
    }
    return true
}

In didReceiveRemoteNotification I just set value in UserDefaults to use it later

    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    print(userInfo)
    UserDefaults.standard.set("Hello world", forKey: "hello")
    completionHandler(.newData)
}

And then in sceneDidBecomeActive what to read this value from UserDefaults

    func sceneDidBecomeActive(_ scene: UIScene) {
    print(UserDefaults.standard.value(forKey: "hello")) // always nil
}

This is my .apns json

{
"Simulator Target Bundle": "xxx",
 "aps" : {
    "content-available" : 1
 }
}

Jephthah

Answer 1

It appears that, presumably due to a bug (that I believe has been reported), the apns file is resulting in performFetchWithCompletionHandler being called, rather than didReceiveRemoteNotification being called.

Stringed

Hi, how do you handle the notification inside performFetchWithCompletionHandler as it hasn't the userInfo which contains the notification? – Stockroom

Answer 2

Jeff's Solution worked for Me, In addition I had to add 'Background Fetch' mode to app

Mesics