Adding the id during the installation of the android app
<p>Hello please guide me about this query . i am making the android app , in which the user will give his personal no and after contacting with server , the app will show all avaliable services for him . we can say it as a user id . The thing  i am wondering about is that how we give the id during the installation of apk file . i mean to say when the user is installing the app it will ask for the personal no and for the rest of the time there is no need to give the personal no , and later on how easily i can fetch the id to query the records at server side .Thanks</p>
