无法更改IOS中的应用徽章

Question

我正在尝试为应用程序图标添加徽章,但根本没有任何反应.

UIApplication.sharedApplication().registerUserNotificationSettings(UIUserNotificationSettings(forTypes: UIUserNotificationType.Sound | UIUserNotificationType.Alert | UIUserNotificationType.Badge, categories: nil))
UIApplication.sharedApplication().applicationIconBadgeNumber = 40;

我在这段代码中遗漏了什么吗？

Answer 1

您是否要求获得更改徽章的许可？这在iOS8中已更改,需要特定权限:

let settings = UIUserNotificationSettings(forTypes: UIUserNotificationType.Badge, 
                                        categories: nil)
UIApplication.sharedApplication().registerUserNotificationSettings(settings)