Understanding Android Fragments: When and How to Use Them

Fragments are reusable UI components in Android. They represent a portion of the UI within an Activity.

Example:

    public class MyFragment extends Fragment {
        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            return inflater.inflate(R.layout.fragment_my, container, false);
        }
    }
  

Fragments allow you to create modular and flexible UIs.