the specified child alread has a parent

用 TestFragment   extends  Fragment
     @Override
     public  View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View  view1 = new  View(getActivity());
        View view = inflater.inflate(R.layout. ad_main ,  null );这里不能有ViewGroup参数，不然认为同一组，报错。
        TextView text = (TextView)view.findViewById(R.id. SlideTitle );
        text.setText( mContent );
         return  view;
    }