How to return to the latest launched activity when re-launching application after pressing HOME?

Question

Familiar scenario: I have a Main activity that launches a Game activity when a button is pressed. If the user presses HOME, and then launches my applicatio

Answer 1

The simplest solution is to write a preference out during onPause or serialize your state out to a persistent file and then read this file during onResume in your main entry point Activity. This activity would rebuild the application state and re-launch the correct activity.

You're seeing this because you app may be killed by the OS on exit. You never know for sure so if you want true persistence of usage, ie go back to the last activity no matter what, you need to write your state to a persistent store.