class SimpleGridLayoutAdapter extends SimpleGridLayout.SimpleGridLayoutAdapter

        //指定列数
        public abstract int getItemColumns();
        //准备要显示的view们
        public abstract List<View> getItemViews(Context context);
       

        grid.setAdapter(adapter)

        @Override
        public int getItemWeight(int position) {
            return 1;
        }

        //调用一下这个就可以了
        notifyDataSetChanged()