Android Activity Life Cycle between two Activities

Hello, I want to share my experience when I faced some problems/obstructions while working related to android life cycle. Please guide me in correct way if I am wrong anywhere. 

Q1) Explain the flow of activity life cycle when control transfers from Activity 'A' to Activity 'B'.

Ans) Accoding to my observation, when control transfers from A to B, following methods will executed.

        

Explanation: 

                                   1) onPause( ) method of Activity A will be called.

                                   2) onCreate() method of Activity B will be called.

                                   3) onResume() method of Activity B will be called.

                                   4) onStop() method of activity A will be called.

Q2) Explain the flow of activity life cycle when user presses back button in Activity 'B'.

Ans) When user presses back button in Activity B, then Activity A will get focussed. The following methods will be executed.

Explanation: 

                                   1) onPause( ) method of Activity B will be called.

                                   2) onRestart() method of Activity A will be called.

                                   3) onResume() method of Activity A will be called.

                                   4) onStop() method of activity B will be called.

                                   5) onDestroy() method of activity B will be called.