How to Control Android back stack

Question

Lets say I have

A->B->C->D->E

In android back stack. I want to be able to get back to one of the following:

A->B->C
A->B
A
<         


        

Answer 1

Use FLAG_ACTIVITY_CLEAR_TOP flag.

Intent a = new Intent(this, A.class);
a.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(a);