iOS8 直接设置application badge value出错

在设置 [[UIApplication sharedApplication] setApplicationIconBadgeNumber:count];

曝出” Attempting to badge the application icon but haven't received permission from the user to badge the application “的错误。

原因是因为在ios8中，设置应用的application badge value需要得到用户的许可。使用如下方法咨询用户是否许可应用设置application badge value

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) {
        
        UIUserNotificationType myTypes = UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound;
        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:myTypes categories:nil];
        [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
    }else

    {
        UIRemoteNotificationType myTypes = UIRemoteNotificationTypeBadge|UIRemoteNotificationTypeAlert|UIRemoteNotificationTypeSound;
        [[UIApplication sharedApplication] registerForRemoteNotificationTypes:myTypes];
    }