如何从didRegisterForRemoteNotificationsWithDeviceToken函数ios swift 3中删除几乎匹配的可选需求警告？

Question

自从我将xcode更新为xcode 8后,我收到此警告:

实例方法

application(:didRegisterForRemoteNotificationsWithDeviceToken :)'几乎匹配协议'UIApplicationDelegate的可选要求'application(:didRegisterForRemoteNotificationsWithDeviceToken :)'

Xcode要求我通过将此函数设为私有来使这个警告静音,但是当我这样做时,函数从未被调用过(它不会被调用).

我试图删除功能,然后自动完成填充它,但没有任何效果.

这是有警告的功能:

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    //
}

这是我完整的appDelegate文件:

@UIApplicationMain
class AppDelegate: UIResponder,UIApplicationDelegate,UNUserNotificationCenterDelegate,CLLocationManagerDelegate {

    var window: UIWindow?
    var locationManager:CLLocationManager?
    var coordinate: CLLocationCoordinate2D?
    func locationManagerStart() {

        if locationManager == nil {
            print("init locationManager")
            locationManager = CLLocationManager()
            locationManager!.delegate = self
            locationManager!.desiredAccuracy = kCLLocationAccuracyBest
            locationManager!.requestWhenInUseAuthorization()
        }

        print("have location manager")
        locationManager!.startUpdatingLocation()
    }

    func locationManagerStop() {
        locationManager!.stopUpdatingLocation()
    }

    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        //
        let newLocation = locations.first!
        coordinate = newLocation.coordinate
        print("location updated")
    }

    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {

    }

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

        registerForPushNotifications(application)

        return true
    }
    func registerForPushNotifications(_: UIApplication) {

        if #available(iOS 10.0, *){
            UNUserNotificationCenter.current().delegate = self

            UNUserNotificationCenter.current().requestAuthorization(options: [.badge, .sound, .alert], completionHandler: {(granted, error) in
                if (granted)
                {
                    UIApplication.shared.registerForRemoteNotifications()
                }
                else{
                    //Do stuff if unsuccessful...
                }
            })
        }
        else{
        }
    }

    func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {

        print("I am not available in simulator \(error)")
    }

    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {
        print(userInfo)
    }

    func applicationWillTerminate(_ application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
        // Saves changes in the application's managed object context before the application terminates.
        self.saveContext()
    }

    // MARK: - Core Data stack

    lazy var applicationDocumentsDirectory: URL = {
        // The directory the application uses to store the Core Data store file. This code uses a directory named "com.youcode.Hebr" in the application's documents Application Support directory.
        let urls = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
        return urls[urls.count-1]
    }()

    lazy var managedObjectModel: NSManagedObjectModel = {
        // The managed object model for the application. This property is not optional. It is a fatal error for the application not to be able to find and load its model.
        let modelURL = Bundle.main.url(forResource: "Hebr", withExtension: "momd")!
        return NSManagedObjectModel(contentsOf: modelURL)!
    }()

    lazy var persistentStoreCoordinator: NSPersistentStoreCoordinator = {
        // The persistent store coordinator for the application. This implementation creates and returns a coordinator, having added the store for the application to it. This property is optional since there are legitimate error conditions that could cause the creation of the store to fail.
        // Create the coordinator and store
        let coordinator = NSPersistentStoreCoordinator(managedObjectModel: self.managedObjectModel)
        let url = self.applicationDocumentsDirectory.appendingPathComponent("SingleViewCoreData.sqlite")
        var failureReason = "There was an error creating or loading the application's saved data."
        do {
            try coordinator.addPersistentStore(ofType: NSSQLiteStoreType, configurationName: nil, at: url, options: nil)
        } catch {
            // Report any error we got.
            var dict = [String: AnyObject]()
            dict[NSLocalizedDescriptionKey] = "Failed to initialize the application's saved data" as AnyObject?
            dict[NSLocalizedFailureReasonErrorKey] = failureReason as AnyObject?

            dict[NSUnderlyingErrorKey] = error as NSError
            let wrappedError = NSError(domain: "YOUR_ERROR_DOMAIN", code: 9999, userInfo: dict)
            // Replace this with code to handle the error appropriately.
            // abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
            NSLog("Unresolved error \(wrappedError), \(wrappedError.userInfo)")
            abort()
        }

        return coordinator
    }()

    lazy var managedObjectContext: NSManagedObjectContext = {
        // Returns the managed object context for the application (which is already bound to the persistent store coordinator for the application.) This property is optional since there are legitimate error conditions that could cause the creation of the context to fail.
        let coordinator = self.persistentStoreCoordinator
        var managedObjectContext = NSManagedObjectContext(concurrencyType: .mainQueueConcurrencyType)
        managedObjectContext.persistentStoreCoordinator = coordinator
        return managedObjectContext
    }()

    // MARK: - Core Data Saving support

    func saveContext () {
        if managedObjectContext.hasChanges {
            do {
                try managedObjectContext.save()
            } catch {
                // Replace this implementation with code to handle the error appropriately.
                // abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
                let nserror = error as NSError
                NSLog("Unresolved error \(nserror), \(nserror.userInfo)")
                abort()
            }
        }
    }
}

Answer 1

经过几周的搜索终于解决了!问题是我有一个名为"Data"的类,它在xcode 7中没有出现任何错误,但每当我在xcode 8中添加它时,app delegate中的registerForNotification函数都会出现此错误!很奇怪,但最终只需更改类Data的名称即可解决.