ShowMyObjectFragment.java

public class ShowMyObjectFragment extends Fragment {

    private MyObject myObject;
    private static final String MYOBJECT_BUNDLE_KEY = "myobject_bundlekey"
    private static final String MYOBJECTID_BUNDLE_KEY = "myobjectid_bundlekey"

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragmentlayout, container, false);
        
        if (savedInstanceState != null) {
            myObject = (MyObject) savedInstanceState.getParcelable(MYOBJECT_BUNDLE_KEY);
            if (myObject != null) {
                show(myObject);
            }
        } else {
            Integer myObjectId = getArguments().getParcelable(MYOBJECTID_BUNDLE_KEY);
            if (myObjectId != null) {
                myObject = //Search the MyObject with this ID
                show(myObject);
            }
        }

        return view;
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        if (myObject != null) {
            outState.putParcelable(MYOBJECT_BUNDLE_KEY, myObject );
        }
        super.onSaveInstanceState(outState);
    }

    public static ShowMyObjectFragment newInstance(Integer myObjectId) {
        ShowMyObjectFragment showMyObjectFragment = new ShowMyObjectFragment ();
        Bundle bundle = new Bundle();
        bundle.putInt(MYOBJECTID_BUNDLE_KEY, myObjectId);
        showMyObjectFragment.setArguments(bundle);

        return showMyObjectFragment;
    }

    public void show(MyObject myObject) {
        //...
    }
}