Android GCM and multiple tokens

Question

I register in GCM with GoogleCloudMessaging.getInstance(context); and save received token on device. Then send it to server and it\'s associated with user account. If I uni

Answer 1

You can send Android device id along with registration id. Android device id is unique and remains the same during app uninstall reinstall and only changes if device is factory reset.

Example: How to get unique device hardware id in Android?