Android QQ logged in to achieve a similar state, log in again to kick off the assembly line elsewhere mechanism.

            
Seeking ideas.

My idea is: Login with two states. Online and not online. There are two states issued a notice, hair, not at all.
Sign in determining the state, if it is not registered. , Then directly log in, change the state has landed. Not at all.
If found to have a login login status. Then log into. Was issued a notice to the state.

issued a notice to end the state of android background service always testing the server backend. If hair. The notice. T currently logged on user to download.
Reply:
Basically landlord your ideas on the good, two registry to determine the status of the server-side