Unable to retrieve access token for facebook on real device

Question

I did Facebook integration in my project, everything is fine on emulator. When it comes to run on real device it is not working. I think the problem is Facebook access token

Answer 1

you can save access token on sharedReference when login as follow

public void onComplete(Bundle values) 
{
   SharedPreferences sp;
   Editor editor = sp.edit();
   editor.putString("access_token",fb.getAccessToken());
   editor.putLong("access_expires",fb.getAccessExpires());
   editor.commit();
}

and Check this onCreate Method as follow

public void onCreate(Bundle savedInstanceState) 
{           
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_facebook_app);
        if(access_token != null){
            fb.setAccessToken(access_token);
        }
        if(expires != 0){
            fb.setAccessExpires(expires);
        }       
}