我已经通过 advertisingIdentifier 。

正如我在那里看到的那样，advertisingIdentifier是

As I have seen there that advertisingIdentifier is

一个字母数字字符串唯一对于每个设备，......

"An alphanumeric string unique to each device, ..."

为此，我将它用作唯一标识符（尽管它用于$ b） $ b提供广告）。

For that I have used it as the unique identifier (though it is used for the serving advertisements).

我的代码是：

-(NSString*)UniqueAppId
{
    NSString *Appname = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleName"];
    NSString *strApplicationUUID = [SSKeychain passwordForService:Appname account:@"manab"];
    if (strApplicationUUID == nil)
    {
        strApplicationUUID  = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
        [SSKeychain setPassword:strApplicationUUID forService:Appname account:@"manab"];
    }
    return strApplicationUUID;
}

只需在需要时调用它

[self UniqueAppId];