fragment layout in android studio

fragment layout in android studio

What is fragment in Android?

Android Fragment is the part of an activity, it is also known as sub-activity. There can be more than one fragment in an activity. Fragments represent multiple screens inside one activity.

Lifecycle fragment layout in android

1.onAttach(Activity)

it is called only once when it is attached to an activity.

2.onCreate(Bundle)

It is used to initialize the fragment.

.3.onCreateView(LayoutInflater, ViewGroup, Bundle)

creates and returns view hierarchy.

4.onActivityCreated(Bundle)

It is invoked after the completion of onCreate() method.

5.onViewStateRestored(Bundle)

It provides information to the fragment that all the saved state of fragment view hierarchy has been restored.

6.onStart()

makes the fragment visible.

7.onResume()

makes the fragment interactive.

8.onPause()

is called when fragment is no longer interactive.

9.onStop()

is called when fragment is no longer visible.

10.onDestroyView()

allows the fragment to clean up resources.

11.onDestroy()

allows the fragment to do final clean up of fragment state.

12.onDetach()

It is called immediately prior to the fragment no longer being associated with its activity.