title: Refresh ListView from another activity
body: <p>I have two activities: "A" (my main activity with a ListView) and "B" (is a form showed as dialog). When I start "B" from "A", I need "A" is not finished but stay in background. Then, when I finish "B" I need the ListView in "A" refreshes its items. How can I do? Let me know if I wasn't clear. </p>