Activity started from background or for another activity

Issue

How do I know if an Activity A was started from Intent:

Intent intent = new Intent(this, Activity.class);
startActivity(intent);

or due to activity lifecycle (after destroy, activity A can be created again, if it is on history applications).

Is there some way to distinguish these two ways to invoke an Activity?

Solution

use PutExtras() on the Intent Activity

check this or that or this-indirect-post

When your Activity is Recreated it is created with a different Intent not the Intent that was used to spark it initially-(especially from history), so if you use extras and check in your oncreate you will be better of -(read this with regards to the not soo much indirect post)

Answered By - Elltz