iOS推送通知-徽章不会显示

Question

如果我收到通知，则徽章不会显示。

我在这里注册通知（如您所见，已选择徽章）：

    if #available(iOS 10.0, *) {
        UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { (granted, error) in
            if error == nil {

                if granted {
                    print("granted")

                    DispatchQueue.main.async {
                        UIApplication.shared.registerForRemoteNotifications()
                        UNUserNotificationCenter.current().delegate = self
                    }
                } else {
                    print("not granted")
                }
            }
        }
    } else {
        let settings: UIUserNotificationSettings = UIUserNotificationSettings(types: [UIUserNotificationType.badge, UIUserNotificationType.sound, UIUserNotificationType.alert], categories: nil)
        UIApplication.shared.registerForRemoteNotifications()
        UIApplication.shared.registerUserNotificationSettings(settings)
    }

这是我的有效载荷：

                notificationJsonPayload =
                    "{\"aps\" : " +
                    " {" +
                    " \"alert\": \"$(Message)\"," +
                    " \"badge\": 1" +
                    " }" +
                    "}";

通知显示在顶部，但应用程序图标上没有任何徽章。

Answer 1

在有效载荷中，“徽章”需要处于外部警报状态。 例：

    {"aps": {
       "alert": {
         "title": "title",
         "body": "body"
       },
       "sound": "default",
        "badge": 8
     }
}

Answer 2

另外，您需要设置应用程序徽章-

UIApplication.shared.applicationIconBadgeNumber = "your badge number from response "

徽章编号为0时，此徽章将被隐藏。