UDID Replacement? - iphone

Question

I know [[UIDevice currentDevice] uniqueIdentifier] is being rejected, I used :
- (NSString *) uniqueDeviceIdentifier{
NSString *macaddress = [[UIDevice currentDevice] macaddress];
NSString *bundleIdentifier = [[NSBundle mainBundle] bundleIdentifier];
NSString *stringToHash = [NSString stringWithFormat:#"%#%#",macaddress,bundleIdentifier];
NSString *uniqueIdentifier = [stringToHash stringFromMD5];
return uniqueIdentifier;
}
If my method is not approved by Apple, what method can I get a unique identifier?

Answer 1

This project does something similar to what you're doing: https://github.com/gekitz/UIDevice-with-UniqueIdentifier-for-iOS-5. I believe it is being accepted by Apple for now. To actually answer your question, there is no other (public) way of getting a id that is not only unique but the same for every app. #Vishal's method of using:
+ (NSString *)GetUUID {
CFUUIDRef theUUID = CFUUIDCreate(NULL);
CFStringRef string = CFUUIDCreateString(NULL, theUUID);
CFRelease(theUUID);
return [(NSString *)string autorelease];
}
and #JeffWolski's method of using:
[[NSUUID UUID] UUIDString];
work if you don't need the device id to be consistant between apps and just need a way to identify that specific device within your own. If you need a device ID that works between apps, you will need to use the devices MAC address either using your code or a open source project.
UPDATE
I just found another solution. You can use [[UIDevice currentDevice] identifierForVendor]. Again, this device id will be unique to your app. http://developer.apple.com/library/ios/#documentation/uikit/reference/UIDevice_Class/Reference/UIDevice.html#//apple_ref/occ/instp/UIDevice/identifierForVendor

Answer 2

This is new in iOS 6. It gives you a UUID that conforms to RFC 4122.
[[NSUUID UUID] UUIDString];

Answer 3

Use this CFUUIDCreate() to create a UUID:
+ (NSString *)GetUUID {
CFUUIDRef theUUID = CFUUIDCreate(NULL);
CFStringRef string = CFUUIDCreateString(NULL, theUUID);
CFRelease(theUUID);
return [(NSString *)string autorelease];
}
And the UDID is only deprecated in iOS 5.

Answer 4

One thing you could do it use openUDID to replace it.