應用程序：didRegisterForRemoteNotificationsWithDeviceToken：未稱為ios 10.3.2

Question

我想開發一個使用推送通知的簡單代碼。 我根據現有的教程（例如link和this）創建證書和配置文件，但是注冊函數application:didRegisterForRemoteNotificationsWithDeviceToken:根本沒有被調用，因此我無法獲得設備令牌。

我還在xcode的“功能”選項卡中為背景打開了“推送通知”和“遠程通知”。 這是我在AppDelegate.swift代碼

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


    UNUserNotificationCenter.current().requestAuthorization(options:[.badge, .alert, .sound]){ (granted, error) in }
    UIApplication.shared.registerForRemoteNotifications()

    return true
}

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
    print("APNs device token: \(deviceTokenString)")
}

func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
    print("APNs registration failed: \(error)")
}

func application(_ application: UIApplication, didReceiveRemoteNotification data: [AnyHashable : Any]) {
    print("Push notification received: \(data)")
}

我正在使用運行iOS 10.3.2的iPhone 5s

Answer 1

請從didFinishLaunchingWithOptions方法調用registerForNotifications

 //MARK:- Methods
    func registerForNotifications(){
        if #available(iOS 10.0, *) {
            let center = UNUserNotificationCenter.current()
            center.delegate = self
            center.requestAuthorization(options:[.alert,.sound]) { (granted, error) in
                if granted{
                    UIApplication.shared.registerForRemoteNotifications()
                }else{
                    print("Notification permission denied.")

                }
            }

        } else {
            // For ios 9 and below
            let type: UIUserNotificationType = [.alert,.sound];
            let setting = UIUserNotificationSettings(types: type, categories: nil);
            UIApplication.shared.registerUserNotificationSettings(setting);
            UIApplication.shared.registerForRemoteNotifications()
        }
    }


func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        let token = String(format: "%@", deviceToken as CVarArg).trimmingCharacters(in: CharacterSet(charactersIn: "<>")).replacingOccurrences(of: " ", with: "")
        print(token)

    }

Answer 2

我找不到它為什么沒有被調用的原因，但是當我將測試目標更改為運行iOS 10.3.2的iPhone 7時，它運行良好。

我不確定為什么會這樣，但是更改目標可能會解決問題