My app has 3 activities on the stack A->B->C
If you press home and after 1 hour re-enter the application, another instance of A
is started, so the stack is A->B->C.
What I want is that when the user re-enters the app, they re-enter on
the same activity they were in before.
Thanks in advance.
Try adding this attribute to the manifest entry for your root activity (ie: Activity A in your example):