recyclerview嵌套recyclerview

创建viewholder的时候，指定item的宽高  

注：布局文件中子recyclerview的高度也应该设置，它为最大高度（猜测），所以最好设置大点，防止子recyclerview的内容过多无法显示

View view = LayoutInflater.from(viewGroup.getContext()).inflate(layoutResId, viewGroup, false); RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(宽，高); view.setLayoutParams(lp); BaseViewHolder vh = new BaseViewHolder(view,mOnItemClickListener); return vh;