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;

}