RecyclerView 里item的match_parent属性失效

item 使用 relativelayout 为根节点，并且 加载方式如下：

public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.list_item_wifi, parent, false);
    return new WifiViewHolder(view);
}

具体参考：https://blog.csdn.net/overseasandroid/article/details/51840819