Recently apple has reject apps that uses the unique device identifier (UDID), in my app i am creating once aCFUUIDRef for each device on the first time, which works great.
in my app i am giving to a new user 10 clicks on a button (some service), when i am creating a device id for the first time it sends to the server and this id is now have credit of 10 clicks.
the problem is when the user delete my app it generate a new identifier.
how can i write some file to the iphone withe an identifier lets say for example “MyCustomDeviceID”
and when a user download the app i am checkin if this file is existing, if it does i am getting the saved parameter and if it doesn’t i am creating the identifier and then creating the document.
i got to have some way to leave a mark on the iphone.
ideas will be appreciated!
Assuming that you can convert a
CFUUIDRefinto anNSString, you can store it in the keychain. Items stored in the keychain persist across app deletes. Check out PDKeychainBindingsController for reference.