Where to restore state in a Fragment

OC-RestoringStateFragment.java

private static final String STATE_ID = "id";
private static final String STATE_ITEMS = "items";

private long mId;
private ArrayList<Item> mItems;

private ListView mListView;
private ArrayAdapter<Item> mAdapter;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (savedInstanceState != null) {
        // Restore some state before we've even inflated our own layout
        // This could be generic things like an ID that our Fragment represents
        mId = savedInstanceState.getLong(STATE_ID, 0);
    }
}

@Override
public void onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View root = inflater.inflate(R.layout.my_fragment, container, false);
    
    // Get references to some views
    mListView = (ListView) root.findViewById(R.id.list_view);
    
    if (savedInstanceState != null) {
        // Restore some state right after inflating our layout
        // Note: Our views haven't had their states restored yet
        ...
    }
}

@SuppressWarnings("unchecked")
@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    if (savedInstanceState != null) {
        // Restore some state that needs to happen after the Activity was created
        //
        // Note #1: Our views haven't had their states restored yet
        // This could be a good place to restore a ListView's contents (and it's your last
        // opportunity if you want your scroll position to be restored properly)
        //
        // Note #2:
        // The following line will cause an unchecked type cast compiler warning
        // It's impossible to actually check the type because of Java's type erasure:
        //      At runtime all generic types become Object
        // So the best you can do is add the @SuppressWarnings("unchecked") annotation
        // and understand that you must make sure to not use a different type anywhere
        mItems = (ArrayList<Item>) savedInstanceState.getSerializable(STATE_ITEMS);
    } else {
        mItems = new ArrayList<>();
    }
    
    mAdapter = new ArrayAdapter<>(getActivity(), android.R.layout.simple_list_item_1, mItems);
    mListView.setAdapter(mAdapter);
}

@Override
public void onViewStateRestored(Bundle savedInstanceState) {
    super.onViewStateRestored(savedInstanceState);
    if (savedInstanceState != null) {
        // Restore some state that needs to happen after our own views have had
        // their state restored
        // DON'T try to restore ListViews here because their scroll position will
        // not be restored properly
        ...
    }
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putInt(STATE_COUNTER, mCounter);
    outState.putSerializable(STATE_ITEMS, mItems);
}