关于修改应用程序图标右上角的数字提示问题

Question

遇到这错误：Attempting to badge the application icon but haven't received permission from the user to badge the application，请问如何解决

Answer 1

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings
                                                                         settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge)
                                                                         categories:nil]];
}

这个在iOS上要用户授权。
然后才能使用。