How to correctly set application badge value in iOS 8?

Question

Old method

[[UIApplication sharedApplication] setApplicationIconBadgeNumber:count];

is now gives error Attempting to badge the applic

Answer 1

I write a class to handle it when I use swift:

class ZYUtility
{
    /// Set badge
    class func setApplicationBadgeNumber(badge: Int) {
        if ZYUtility.SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO("8.0") {
            if UIApplication.sharedApplication().currentUserNotificationSettings().types & UIUserNotificationType.Badge != nil {
                UIApplication.sharedApplication().applicationIconBadgeNumber = badge
            } else {
                println("No permission to set badge number")
            }
        } else {
            UIApplication.sharedApplication().applicationIconBadgeNumber = badge
        }
    }

    /// System check
    class func SYSTEM_VERSION_EQUAL_TO(version: String) -> Bool {
        return UIDevice.currentDevice().systemVersion.compare(version,
            options: NSStringCompareOptions.NumericSearch) == NSComparisonResult.OrderedSame
    }

    class func SYSTEM_VERSION_GREATER_THAN(version: String) -> Bool {
        return UIDevice.currentDevice().systemVersion.compare(version,
            options: NSStringCompareOptions.NumericSearch) == NSComparisonResult.OrderedDescending
    }

    class func SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(version: String) -> Bool {
        return UIDevice.currentDevice().systemVersion.compare(version,
            options: NSStringCompareOptions.NumericSearch) != NSComparisonResult.OrderedAscending
    }

    class func SYSTEM_VERSION_LESS_THAN(version: String) -> Bool {
        return UIDevice.currentDevice().systemVersion.compare(version,
            options: NSStringCompareOptions.NumericSearch) == NSComparisonResult.OrderedAscending
    }

    class func SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(version: String) -> Bool {
        return UIDevice.currentDevice().systemVersion.compare(version,
            options: NSStringCompareOptions.NumericSearch) != NSComparisonResult.OrderedDescending
    }
}