android techic about web-services when "no internet connection"

i made an android apps with web-services, right now i am able to do that even though is still simple. My problem is, when there is "no internet connection", i want the app can still be open, with the last data it get from web-services.

my Question is, how do i do that? is it using sqlite, so after fetching the data from web-services, i have to save it to sqlite? then the data in Listview should be from sqlite not directly from web-services?