Question

我的应用中没有显示背景和终止案例的徽章计数。我在appdelegate didfinishlaunch中添加了这段代码

 UIApplication.shared.applicationIconBadgeNumber = 0

        if #available(iOS 10, *)
        {
            UNUserNotificationCenter.current().delegate = self
            UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in

                guard error == nil else
                {
                    return
                }
                if granted
                {
                    UIApplication.shared.registerForRemoteNotifications()
                }
            }
        }
        else
        {
            let settings : UIUserNotificationSettings = UIUserNotificationSettings(types: [.alert, .sound , .badge], categories: nil)
            UIApplication.shared.registerUserNotificationSettings(settings)
            UIApplication.shared.registerForRemoteNotifications()
        }



 UIApplication.shared.applicationIconBadgeNumber += 1
 print("Badge Count ===>   \( UIApplication.shared.applicationIconBadgeNumber)")

打印显示正确的计数。但未在应用中显示。

实际上我不需要更新每个通知的徽章数。对于某些共享或类似我们需要更新徽章计数。所以我创建了一个方法并更新了计数。

func setBadgeCount()
        {
            if(self.currentAppState() == 1 || self.currentAppState() == 3)
            {
                sleep(2)
                UIApplication.shared.applicationIconBadgeNumber += 1
                print("Badge Count ===>   \( UIApplication.shared.applicationIconBadgeNumber)")
     }
        }

来自

的callthis方法

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void)
    {

setBadgeCount()
}

Answer 1

除非应用程序实际处于打开状态，否则应用程序不会使用此方法更新徽章编号。如果要在收到通知时更新徽章编号，则必须在通知的有效负载中设置徽章编号。下面是有效载荷的样本。把你想要的号码放在那里然后发送就可以了。

{
    "aps": {
        "alert": "Test Push Notification",
        "sound": "yourSound.aiff",
        "Badge": "desiredNumber"
    }
}

Answer 2

您已在didFinishLaunchingWithOptions中编写此代码，该代码仅被调用一次。那么它将如何更新徽章编号。仅在UIApplication.shared.applicationIconBadgeNumber = 0

中添加didFinishLaunchingWithOptions

改为使用，

func application(application: UIApplication, didReceiveLocalNotification notification: UILocalNotification) {

    application.applicationIconBadgeNumber = application.applicationIconBadgeNumber + 1; 
}

对于推送通知使用，

func application(application: UIApplication,didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {

    application.applicationIconBadgeNumber = application.applicationIconBadgeNumber + 1; 
}

根据您更新的问题，当您获得正确的日志时，当应用进入后台或终止时，您无法获得正确的徽章计数。这是因为为了处理这些情况，我们需要在某处存储徽章计数。您可以将其存储在UserDefaults中，然后相应地获取它。

Answer 3

只需转到onesignal消息设置并打开徽章计数

徽章计数未显示在iOS App

3 个答案: