Ios 在swift 3中的定时通知中更新徽章？

我一直在尝试使用通知编码，只是为了能够在我的应用程序中添加一些，但我可以说，最大的问题是

某物。徽章=3

诸如此类，但我不能说

某物。徽章+=1

或

某物。徽章=徽章+1

到目前为止，我的代码是这样的

@IBAction func sendNotification(_ sender: Any) {// in this button you make a notification

      UIApplication.shared.applicationIconBadgeNumber = 1
    let asnwer1 = UNNotificationAction(identifier: "asnwer1",  title: "You are",  options: UNNotificationActionOptions.foreground)
    let asnwer2 = UNNotificationAction(identifier: "asnwer2", title: "Obviously you fucking are!" , options: UNNotificationActionOptions.foreground)
    let category = UNNotificationCategory(identifier: "myCategory", actions: [asnwer1, asnwer2], intentIdentifiers: [], options: [])
    UNUserNotificationCenter.current().setNotificationCategories([category])
   // created nitification

    let content = UNMutableNotificationContent()
    content.title = "Are you pathetic for not working out??"
    content.subtitle = "are you?? "
    content.body = "Are you sure?"
    content.categoryIdentifier = "myCategory"
    /////// THIS NEEDS IMPROVEMENT
    if  UIApplication.shared.applicationIconBadgeNumber == 1{
            content.badge = 2
    }
    if  UIApplication.shared.applicationIconBadgeNumber == 2{
        content.badge = 3
    }
    if  UIApplication.shared.applicationIconBadgeNumber == 3{
        content.badge = 4
    }
    if  UIApplication.shared.applicationIconBadgeNumber == 4{
        content.badge = 5
    }
    if  UIApplication.shared.applicationIconBadgeNumber == 5{
        content.badge = 6
    }
    if  UIApplication.shared.applicationIconBadgeNumber == 6{
        content.badge = 7
    }
    if  UIApplication.shared.applicationIconBadgeNumber == 7{
        content.badge = 8
    }
    if  UIApplication.shared.applicationIconBadgeNumber >= 8{
        content.badge = 9
    }


    let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 10, repeats: false)
    let request = UNNotificationRequest(identifier: "timerDone", content: content, trigger: trigger)

    UNUserNotificationCenter.current().add(request, withCompletionHandler: nil)// the previous lne created a let named request...youre using it here
}

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这里的问题是，我一直在说，如果徽章号码是那个特定的号码，那么就把它设为那个特定的号码……还有其他办法吗？

我想你想简化如何编写所有这些条件

那么：

content.badge = Swift.min(9, UIApplication.shared.applicationIconBadgeNumber + 1)

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那么就需要写no if子句。

当你说我不能说某事时。badge+=1你不能“说”是什么意思？告诉我们你在尝试时遇到的错误。