After successfully login with services call, I am showing dashboard into my application, there we have another service calls.

Problem is after running time application and then killing the app thread the link between app and services call is collapsed.

How to maintain that user is already logged if he/she login into application and kills the app. (Killing app double click home button and swipe up the app).

Do I have to call same login services on application did finished launch.
or check the user already login

My Question here is maintaining Session for accessing other services. But from server side its always says user is not login In after killing app from back ground.

@All
Your info helpful in make for integration services.
Thanks In Advance.