Activity starting another activity. Guarantee that the first activity's onPause will be called before second's onResume

Issue

I have an Activity A and Activity B. Activity A starts Activity B.

Is there a guarantee that A's onPause() will always be called before calling B's onResume()?

This is related to this entry

Solution

Found the answer here:

When activity B is launched in front of activity A, this callback will be invoked on A. B will not be created until A's onPause() returns, so be sure to not do anything lengthy here.

Answered By - Mark Pazon