使用fragmenttabhost后，子fragment怎么获取ID？怎么用getSharedPreferences

public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

        View parentView = inflater.inflate(R.layout.fragment1, container, false);

        SharedPreferences pre = getActivity().getSharedPeferences(CFG,0);
               //getSharedPeferences("myinfo",Context.MODE_PRIVATE);

        return parentView;

    }