Fragment Lifecycle

Question 1

onAttach

Answer 1

The first stage of Fragment initialization.

Question 2

onCreate

Answer 2

The system calls this when creating the fragment. Within your implementation, you should initialize essential components of the fragment that you want to retain when the fragment is paused or stopped, then resumed.

Question 3

onCreateView

Answer 3

The system calls this when it’s time for the fragment to draw its user interface for the first time. To draw a UI for your fragment, you must return a View from this method that is the root of your fragment’s layout. You can return null if the fragment does not provide a UI.

When the Activity that the Fragment has been included in returns from the Activity stack, the logic here is run as part of the resuming process.

Question 4

onActivityCreated

Answer 4

The Activity the Fragment is in has been fully created or resumed.

Question 5

onStart

Answer 5

Called when the Fragment has been started.

Question 6

onResume

Answer 6

This will run when the Fragment resumes, and is the last point for logic changed before the Fragment is considered active.

Question 7

onPause

Answer 7

As the Fragment is placed into the back stack, the logic here is processed.

Question 8

onStop

Answer 8

The Fragment is going to be destroyed soon, so the logic can be run here.

Question 9

onDestroyView

Answer 9

The current view is going to either load the Fragment back to the Activity cycle through onCreateView() or be destroyed.

Question 10

onDestroy

Answer 10

The Fragment is going to be destroyed; this is the last chance for the logic to be run before the Fragment is destroyed and detached from the view.

Question 11

onDetach

Answer 11

As the Fragment is removed, this is the last method you can work with as part of the Fragment-destroy process.