voting once without any username

Question

I would like my app users to be able to vote once. Meaning I need their UDID for that matter.

Since I won't be nagging about registering to my app I find it necessary to use some identification for that device.

I have heard that Apple have deprecated the use of device UDID.

How can I accomplish this?

If you meant `UDID` take a look at [this](http://stackoverflow.com/questions/6993325/uidevice-uniqueidentifier-deprecated-what-to-do-now/7873609#7873609) — Mat, Jun 10 '12 at 09:37
It's also rumoured that Apple will announce a UDID replacement as part of iOS 6 in the coming week at WWDC 2012. — theTRON, Jun 10 '12 at 11:40
There was no UDID replacement, you will have to roll your own. — Nils Munch, Oct 23 '12 at 21:19

score 7 · Answer 1 · answered Jun 10 '12 at 09:37

As many have said, the UDID block is not the end of the world, since apple have provided ways of still binding to device-specific variables.

I would read the blog entry Thriving Amid An Explosion of UDID Alternatives and go through what you will need for your app in particular.

score 7 · Accepted Answer · answered Jun 10 '12 at 09:38

7

I would use OpenUDID Its very simple to use You would do the following

#include "OpenUDID.h"
NSString* openUDID = [OpenUDID value];

Grab it from here https://github.com/ylechelle/OpenUDID/

answered Jun 10 '12 at 09:38

Omar Abdelhafith

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Sorry for the so late response. It's amazing how many things there are on a project that easily distract you. Thanks! – Ted Jul 04 '12 at 10:50

score 3 · Answer 3 · answered Jun 10 '12 at 09:40

3

use this methode

+ (NSString *)newUUID
{
CFUUIDRef theUUID = CFUUIDCreate(NULL);
CFStringRef string = CFUUIDCreateString(NULL, theUUID);
CFRelease(theUUID);
return (NSString *)string;
}

answered Jun 10 '12 at 09:40

iArezki

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This is not exactly going to work very well, what stop's a user from just uninstalling and reinstalling the app and getting a new UUID everytime? – Paul.s Jun 10 '12 at 10:18
Well, you could write this down to your keychain – Ted Jul 04 '12 at 08:25

score 0 · Answer 4 · answered Jun 10 '12 at 21:16

0

If you have time until (probably) the WWDC keynote tomorrow, this could be interesting for you: The Wall Street Journal: Apple to Release New Tracking Tool for Apps

answered Jun 10 '12 at 21:16

Stefan

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voting once without any username

4 Answers4