Android：RecyclerView项目Contextmenu问题

本文介绍了Android：RecyclerView项目Contextmenu问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在尝试实现一个RecyclerView，当单击每个项目时，将弹出一个上下文菜单。

I am trying to implement a RecyclerView, that each item when clicked, a context menu will pop up.

我已引用了 问题 有关如何做我想做的事情。

I have referred the answers/comments from this question on how to to do what I wanted.

我的问题是，通过使用getMenuInfo（）检索信息，我一直变得空。即，当我从上下文菜单中选择一项时，这就是我得到的内容

My problem is, I keep getting null by using getMenuInfo() to retrieve info. Ie, When I select an item from the context menu, this is what I get

java.lang.NullPointerException：尝试从字段读取空对象引用上的'long com.x.lib.RVCoursesContextMenu $ RecyclerContextMenuInfo.id'

java.lang.NullPointerException: Attempt to read from field 'long com.x.lib.RVCoursesContextMenu$RecyclerContextMenuInfo.id' on a null object reference

我的代码与此 answer 非常相似。

My code for this is very similar to this answer .

很长一段时间以来，我一直在寻找解决方案，如果有人可以帮助我，我将非常感激。

I have been looking for a solution for this for a very long time, would really appreciate if someone could help me on this.

推荐答案

public static class ViewHolder extends RecyclerView.ViewHolder { Context cxt; public ViewHolder(View itemView, int ViewType, Context cnxt) { this.cxt = cnxt; } }