Skip going back to direct parent activity when pressed back

Question

I have got a small problem in an Android app I am working on :

There are 3 activities namely A , B , C and the invocation is in the following order : A -> B -> C.

Answer 1

Set a flag for B activity like this

private boolean mDestroyActivity = false;

set that flag true when you call startActivity C.

for activity B onStop method add checking like this:

if (mDestroyActivity) finish();

Then when you press back button in C you will jump back to A.