Using a Hash of all the ID's is most likely the best solution, gather all the ID's, append your own signature if you like (optional) and hash the long concatenation of all the ID's you can gather, I would recommend using SHA.
Most likely not all phones will have all available ID's so by using this you can be sure that the ID you're generating is as unique as possible. On Feb 11, 10:54 am, Oceanblue <[email protected]> wrote: > Like a lot of other applications, my application has different levels > of features access. Depending on the unique device ID, it switches on > certain features (paid/licensing issues). This feature switching on- > off is already done in existing native C/C++ code for all kind of > mobile devices/PCs etc, so I wouldn't be using Androids new in-app > billing (even if it provides this functionality) > > I need a unique (6 byte, hex string) device id. I have looked at the > following options: > > 1. ANDOID_ID > > Looks good, but there seem to be some issues with this. > 1. This can show up null, unless the device has atleast once logged > onto Android market, as per this > thread:http://groups.google.com/group/android-developers/browse_thread/threa... > I've read in other places too, that it might be null - due to this or > other causes. > > 2. Certain devices have a bug where many devices show up the same > (supposedly) unique id, as per this > thread:http://groups.google.com/group/android-developers/browse_thread/threa... > > 2. MAC address > > Not sure if this is available under the following conditions: > 1. Device is not wi-fi enabled > 2. Wi-fi is switched off > > 3. IMEI/ MEID > > Application will be potentially running on non-telephone devices like > tablets too, so this is not an option. > > I'm really stumped at this point. Any guidance would be much > appreciated. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
