What methods are invoked in the Activity Lifecycle in the following cases:

Question

Let\'s say I have a Hello World single Activity application. I start this application.

What methods are invoked in each case:

• Home button is pressed:

Answer 1

There can be several scenarios

1. Opening the app from the app icon. following methods are called

   onCreate()-->onStart()-->onResume()

2. When user presses the home button

   onPause()-->onStop()

3. When user returns to the app from the Activity Stack

   onRestart()-->onStart()--> onResume()

4. When the app is running and user presses the power button

   onPause()-->onStop()

5. When user unlocks the phone

   onRestart()-->onStart()--> onResume()

6. When user gets an incoming call while you are in the app

   onPause()

7. When user returns to the app after disconnecting the phone call

   onResume()

8. When user presses the back button from the app

   onPause()-->onStop()-->onDestroy()

9. And when the user presses the home button and from the activity stack user swipes the app.onDestroy() method may or may not be called depending upon the OS contains the context of the Activity or not according to memory requirements