Life cycle of Android Activity after pressing Back button

Question

I am little confused between the life cycle of two activities.

Suppose I have Activity A and Activity B.

B is called From A i.e A ----> B.

Answer 1

I would suggest to refer following link for activity lifecycle

http://stackoverflow.com/a/8516056/3110609

and following link for launch mode of activity.

www.intridea.com/blog/2011/6/16/android-understanding-activity-launchmode