Question

I’m using facebook login for my android app, now to create a user in MYSQL database I want to know when the user first logs in the app..

Something like, when we authorize the app to use facebook basic info.

Thanks 🙂

Edit: I’m using a Facebook login button (<com.facebook.widget.LoginButton... />) for login & I’m fetching the user details when the statechanges, using

onSessionStateChange(SessionState state, Exception exception){...}

Answer 1

You need to store whether or not the app has been run before in something called “Shared Preferences“. You can use something like the following

SharedPreferences prefs = this.getPreferences(Context.MODE_PRIVATE);
if(prefs.contains(HAS_BEEN_RUN_FLAG)){
    //check the database for the user info
}
else{            
    //do the facebook authentication
    prefs.edit().putInt(HAS_BEEN_RUN_FLAG, 1).commit();
}