Recyclerview viewholder. imagePaths = imagePaths; this. ViewHolder hol...

Recyclerview viewholder. imagePaths = imagePaths; this. ViewHolder holder, int position, final OnRepeatListener repeatListener) { Button btnRepeat = (Button) holder. - skydoves/BaseRecyclerViewAdapter 了解如何使用 RecyclerView 在 Android 应用中高效显示大型数据集，该方法通过回收视图元素来提高性能和响应速度。本指南介绍了用于构建动态列表的关键类、实现步骤和自定义选项。 Mar 13, 2020 · 42 What you need to do is pass the generated binding class object to the holder class constructor. Jul 23, 2025 · In this article, we will see its implementations in the Adapter class of RecyclerView. btnRepeat); } @Override public RecyclerView. RecyclerView; /** * ViewHolder for a single movie card in the RecyclerView. Aug 10, 2025 · ViewHolder 是 RecyclerView 架构 中的 核心组件，它作为视图持有者和复用单元，在列表性能和 内存 优化中扮演着至关重要的角色。 一、ViewHolder 的本质与作用 1. Adapters should feel free to use their own custom ViewHolder implementations to store data that makes binding view contents easier. ViewHolder The ViewHolder is an abstract class that we also extend from RecyclerView. Data Binding significantly reduces the boilerplate code. I am having problems getting a reference to the ViewHolder that the click occurred in. LayoutParams belong to the RecyclerView. ViewHolder { private final ImageView posterImageView Contribute to sowjanyanune/2-2-sdc-master_detail_app development by creating an account on GitHub. e. LayoutManager, ViewHolders belong to the adapter. RecyclerView を使用して Android アプリで大規模なデータセットを効率的に表示する方法を学びます。RecyclerView は、ビュー要素を再利用することでパフォーマンスと応答性を向上させます。このガイドでは、動的リストの作成に必要な主要なクラス、実装手順、カスタマイズ オプションについて説明 Dec 19, 2018 · 首先， 调用Adapter. TextView; import androidx. Adapter，泛型是MyAdapter 中继承的ViewHolder类，这样写后我们的onCreateViewHolder和onBindViewHolder的方法参数都是我们的ViewHolder了，是无法做到区分多布局的。 文章浏览阅读1. It says that the onBindViewHolder method should update the contents of the itemView to reflect the item at the given position . Jul 27, 2023 · TabLayout TabLayout, a UI component in the Android framework, offers users a user-friendly way to incorporate a horizontal layout of tabs. Each tab represents a distinct category or feature, allowing users to effortlessly switch between them by 1 day ago · 本文深入解析ItemTouchHelper的高级用法，涵盖长按拖拽、滑动删除及自定义动画等复杂交互设计。通过优化核心参数、适配多布局类型及提升性能，帮助安卓开发者充分利用RecyclerView的拖拽效果，打造流畅的用户体验。 2 days ago · ListView与RecyclerView深度对比选型指南与迁移方案 引言：Android列表组件的演进与现状 在Android应用开发的历史长河中，数据列表展示始终是核心交互模式之一。从早期简单的 ListView 到如今功能强大的 RecyclerView，Android列表组件经历了显著的技术演进。本文将深入剖析这两大核心组件的设计哲学、性能 4 days ago · 文章浏览阅读4次。本文深入探讨了RecyclerView中GridLayoutManager的动态调整Item列数与宽度的进阶技巧。通过解析SpanSizeLookup机制和实战代码示例，详细介绍了如何根据业务需求灵活控制网格布局，包括动态列数调整、Item宽度计算以及间距处理等高级功能，帮助开发者实现更复杂的UI布局需求。 RecyclerView. This versatile feature is commonly employed for efficient organization and seamless navigation between multiple screens or sections within an app. May 23, 2016 · 最近项目我在项目中使用了RecyclerView代替了ListView. When the view holder is created, it doesn't have any data associated with it. 또한 3종류의 LayoutManager 를 제공해서 수직, 수평 스크롤, Grid 방식, Staggered Grid (엇갈린 격자) 방식이 있다. RecyclerView. Camera & media . Adapter<MyAdapter. Mar 6, 2021 · getItemCount：表示するアイテム数を設定する。 2. View; import android. Get the latest. itemView. Social & messaging . 3k次，点赞3次，收藏13次。本文详细解析了Android RecyclerView组件的工作原理，包括其核心组件ViewHolder的作用、Adapter如何连接数据与视图，以及LayoutManager在列表布局中的职责。同时介绍了RecyclerView与Adapter的交互流程，帮助开发者更好地理解和使用RecyclerView。 I've made a list of items a few times using Android's RecyclerView, but it is a rather complicated process. You define the view holder by extending RecyclerView. id. Jul 24, 2020 · As part of this change the method getAdapterPosition() was deprecated because the name is confusing when adapters nest other adapters. Oct 15, 2019 · If you remember from the last post, the adapter object is in charge to get data from the model, process it and send it to the recyclerview using ViewHolder objects as a way to bind (display) the data to the UI since they are representations from the kotlin/java side of each row’s element. In contrast, implementing an adapter for RecyclerView requires the use of the ViewHolder pattern for which it uses RecyclerView. Also Apr 8, 2021 · 为什么您需要使用 RecyclerView 呢？ RecyclerView 使用 ViewHolder 模式，这样做可以提高性能，因为它无需频繁调用 findViewById () 方法即可访问表项的视图； RecyclerView 使用 LayoutManager，它支持纵向滑动的列表和横向滑动的列表，以及交错布局的列表和网格布局的列表。 RecyclerView can display large datasets that can be scrolled efficiently by recycling a limited number of views. ViewHolderを作成 まだViewHolderを作成していないため、 <FruitAdapter. Adapter has the role to : inflate the layout in onCreateViewHolder bind the ViewHolder with the data set with onBindViewHolder I have several RecyclerViews displaying the same list of data. The ViewHolder provides us with common methods to help us reference a View we have placed on the RecyclerView even after the Recycling machinery in the RecyclerView has changed various references we don’t know about. I have created stand alone project with usage of ViewHolder as an outside class, take a look ⚡ Fast way to bind RecyclerView adapter and ViewHolder for implementing clean sections. ViewHolder 是 Android 开发中用于描述 RecyclerView 项目视图的类，提供了视图绑定和管理功能。 Nov 20, 2024 · The ViewHolder pattern is a fundamental component in the RecyclerView’s recycling mechanism. ViewHolder 를 넘겨줘야 한다는 점과, onCreateViewHolder() 그리고 onBindViewHolder() 등의 추상 메소드를 반드시 구현해야 한다는 점 등이 있다. The number of ViewHolder (and View) present at any time depends on the number visible items on the screen. Nov 18, 2016 · Understand the basics of working with the RecyclerView, Adapter and ViewHolder pattern in Android development for displaying lists of data. The project uses modern Android TeachSync – Tuition Tracker is a smart and simple app designed to help tutors, teachers, and coaching centers manage their tuition activities effortlessly. We will build a simple user management feature where users can add, view, update, and delete records. Inner class is only a proposition in all tutorials for RecyclerView, it is a better way if your ViewHolder should have access to all Adapter parameters, even those private, but any access or objects relations can be recreated by access methods in Adapter and ViewHolder. Productivity . This guide covers a practical implementation using RecyclerView to display data and perform real-time updates. Learn to build for your use case by following Google's prescriptive and opinionated guidance. ViewHolder> の部分でエラーが出るので、FruitAdapterクラス内にViewHolderを作成します。 Jan 7, 2021 · RecyclerView 简单介绍 RecyclerView 简单使用 核心类的介绍 ViewHolder Adapter 开始使用 布局管理LayoutManager 常用API 设置一个瀑布流式的布局 分隔条 RecyclerView ItemDecoration 具体使用 自定义分割符 最简单的分割符 网格布局中的分隔符实例 动画 RecyclerView ItemAnimator 事件监听 May 14, 2020 · Adapter： 从 模型 层获取数据，然后提供给RecyclerView显示。 主要任务是创建ViewHolder和将模型层的数据绑定到ViewHolder上。 LayoutManager： RecyclerView不会亲自摆放屏幕上的列表项，摆放列表项的任务被委托给了LayoutManager。 主要任务是指定RecyclerView的布局方式。 1. Enterprise apps . Health & fitness . 3. Aug 31, 2023 · 今回は、RecyclerViewを作った繰り返し処理を実装します。 完成イメージは以下です。 「日付」の行と、「買い物をする」などのデータの行の、二種類のレイアウトが必要になります。 これを実現するために、ViewHolderを2つ用意し、条件によって出し分けます。 Dec 25, 2016 · 先不管这把所有类都写在RecyclerView内部的做法是否好，但是ViewHolder作为RecyclerView内部复用的单位，直接避免了不必要的findViewById，而在ListView中则需要我们自己定义ViewHolder。 一个使用RecyclerView的示例 在进行探究之前，首先回顾一下我们是如何使用一个RecyclerView Jun 25, 2017 · ViewHolder的作用我们在上文介绍使使用ListView时已经说到，简而言之就是提高消息，下面我们看一看源码中对ViewHolder的介绍： /** * A ViewHolder describes an item view and metadata about its place within the RecyclerView. onCreateViewHolder (ViewGroup, int)创建ViewHolder。 最后，RecyclerView会 传入ViewHolder及其位置， 调用onBindViewHolder (ViewHolder, int) 方法。Adapter会找到目标位置的 数据 并将其 绑定到ViewHolder的 Aprende a mostrar de manera eficiente grandes conjuntos de datos en apps para Android con RecyclerView, que mejora el rendimiento y la capacidad de respuesta reciclando elementos de la vista. * * <p>{@link Adapter} implementations should subclass ViewHolder and add fields for RecyclerView. , are called to indicate that an isolated change was made to the list managed by the adapter (as opposed to a wholesale change, as indicated by notifyDataSetChanged ()). Adapter connects your data to RecyclerView ViewHolder stores references to views (prevents calling findViewById repeatedly) onCreateViewHolder creates the item layout onBindViewHolder puts data into the layout at specific position getItemCount tells total number of items The Adapter pattern makes RecyclerView super efficient because it recycles views - just like how a restaurant reuses plates 2 days ago · Implementing RecyclerView Add Dependency (build. getItemCount () 方法，RecyclerView 询问 数组列表中 包含多少个待展示的视图。 接着，RecyclerView 调用Adapter. ViewHolder. ViewHolder class has a field that is public final View itemView. 5 days ago · In this blog, we will learn how to implement complete CRUD (Create, Read, Update, Delete) operations using Room Database in Android with Kotlin. Adapter RecyclerView includes a new kind of adapter. ViewHolder unsubscribe the subscription object in onBindViewHolder (it's called when the ViewHolder is reused) Keep the CompositeSubscription object in your adapter Use the onDetachedFromRecyclerView method of your Adapter to unsubscribe the compositeSubscription Like so: Mar 18, 2017 · To avoid such an epic bug, at one of the earlier steps in a search for a ViewHolder, RecyclerView asks ChildHelper whether it has a suitable hidden view. Adapter 를 상속하여 자신만의 어댑터를 만들 때 알 수 있는 것들이 여러 가지 있다. Aug 15, 2015 · We would like to show you a description here but the site won’t allow us. While RecyclerView. 6w次，点赞26次，收藏74次。本文深入探讨RecyclerView中ViewHolder重用机制导致的图片错乱和闪烁问题，通过具体示例和代码演示，揭示问题本质，并提供有效解决方案。 May 14, 2022 · 以前、 RecyclerView でリスト表示する 方法を解説した際、RecyclerView の各項目のビューにアクセスする方法として findViewById を使用しました。 しかし、View Binding を使用した方がビューに安全にアクセスすることができます。 Jul 3, 2019 · 本文就将先从整体流程看RecyclerView的缓存，再带你从源码角度分析，跳过读源码的坑，最后用一个简单的demo的形式展示出来。 在开始RecyclerView的缓存机制之前我们先学习关于ViewHolder的知识。 RecyclerView为什么强制我们实现ViewHolder模式？ Jun 21, 2009 · 또한 RecyclerView를 사용하면 좋은 점은, 어떤 형식을 사용해도 같은 어댑터를 사용할 수 있다는 것이다. context. In onCreateViewHolder(), the Views are created and the ViewHolder contains references to them so that the Jul 1, 2016 · 文章浏览阅读2. ViewHolder public static abstract class RecyclerView. Mar 3, 2020 · A ViewHolder wrapper around a ViewBinding can only take us so far, a BindingViewHolder should also allow the seamless binding of generic properties without having to subclass it again, otherwise, we could just directly subclass RecyclerView. ViewHolder getHeaderViewHolder (View view) { // return an empty instance of ViewHolder for the headers of this section return new EmptyViewHolder (view); } } ``` ##### 2) Create a custom ViewHolder for the section items: ```java class MyItemViewHolder extends RecyclerView. recyclerview:recyclerview:1. (Libraries / GUI) awesome-android - RecyclerTabLayout Custom Filterable FirebaseRecyclerAdapter. Adapterが必須です。 ではこいつらは一体何者なのか簡単に説明していきたいと思います。 ViewHolder ViewHolderというのは1行分のレイアウトを保持しておくためのクラスです。 Aug 6, 2017 · RecyclerView is already recycling and reusing the Views and the corresponding ViewHolders. Games . Oct 30, 2016 · （一）单布局的Adapter 首先我们看下以前单布局的Adapter是如何去写的： 我们继承了RecyclerView. 简介 用户滑动屏幕切换视图时，上一个视图会回收利用，RecyclerView所做的就是回收再利用，循环往复。 ViewHolder ViewHolder的主要任务： 容纳View视图。 Adapter Adapter从模型层获取数据，然后提供给RecyclerView显示，是沟通的桥梁。Adapter主要的任务是： 创建ViewHolder 和 将模型层的数据绑定到 RecyclerView. Jul 29, 2016 · android asked Jul 29, 2016 at 6:45 seb tom 1111 Above layout is layout of your activity, just put a recyclerview in your activity layout if you have. 核心定义 Mar 4, 2016 · This occurs when RecyclerView's change animation is enabled and corresponding RecyclerView. */ public class MovieViewHolder extends RecyclerView. 添加 4 days ago · RecyclerView性能优化：从源码解析局部刷新与缓存机制的最佳实践 在Android开发中，RecyclerView作为列表展示的核心组件，其性能直接影响用户体验。许多开发者习惯使用 notifyDataSetChanged() 进行数据更新，却不知这会导致不必要的性能损耗。本文将深入RecyclerView的缓存机制，揭示不同刷新方式对性能的 Is there a way to get the ViewHolder of specific Item of recyclerview base on given position only? Something like getViewHolder(position);. Customizable Item Layouts Is there a way to get the ViewHolder of specific Item of recyclerview base on given position only? Something like getViewHolder(position);. Provides API reference for RecyclerView. resources private val sleepLength: TextView = itemView. Here, we’ll learn how to implement DataBinding with a RecyclerView which has the ViewHolder pattern. Each item in the RecyclerView is represented by a ViewHolder, which holds references to the item’s Sep 6, 2016 · ViewHolder can be outside class. Can I somehow get all existing Views? Jul 23, 2021 · 前提・実現したいこと Android Studio の RecyclerView で複数タイプの ViewHolder を追加したり削除したりしても問題なく表示できるようにしたい。 発生している問題・エラーメッセージ RecyclerView の View をタップするとそのViewが削除されるような機能があるとして、下記の Adapter で定義した remove Aug 18, 2020 · 결론 : Kotlin으로 ViewHolder 패턴 사용 시, View를 참조하는 부분은 Synthetic Property를 통해 간결한 코드를 작성할 수 있습니다. Pass the CardBinding to the CardViewHolder constructor so it has that binding object. Going through one of the numerous tutorials online works (this, this, and this are good), Feb 15, 2022 · In GalleryFragment I'm showing all images from the user gallery and I have a button at position 0, The button can do take new images via the camera. Adapter<T> 만 사용하면 되기에 이식성을 높인다. ViewHolder only bind the views with findViewById. Now you should use the method getBindingAdapterPosition() which returns the position in the specific adapter (bindingAdapter). Also checking the source code of RecyclerView. (Libraries / GUI) awesome-github-android-ui - RecyclerTabLayout - 高效TabLayout库 (TabBar) fucking-awesome-android - RecyclerTabLayout - An efficient TabLayout library implemented with RecyclerView. recyclerview. 5w次，点赞58次，收藏172次。本文详细介绍了如何在Android中创建RecyclerView，包括布局创建、适配器编写（onCreateViewHolder, onBindViewHolder, getItemCount）、不同LayoutManager的应用以及添加点击事件。适合初级开发者学习RecyclerView的基本用法。. gradle) implementation 'androidx. It’s a similar approach to the ones you already used, but with some peculiarities, such as a required ViewHolder. Apr 17, 2015 · RecyclerView. You will have to override two main methods: one to inflate the view and its view holder, and another one to bind data to the view. Sep 6, 2015 · The RecyclerView. findViewById (R. 由于项目中有多出列表项使用RecyclerView,这就导致需要写多个Adapter和ViewHolder. Going through one of the numerous tutorials online works (this, this, and this are good), Sep 1, 2022 · I have implemented a Callback interface between the Adapter and the ViewHolder Class to handle Click Events on the UI elements (buttons). sleep_length) package com. java 1 day ago · Android RecyclerView 滑动删除与撤销功能深度实战指南 在移动应用交互设计中，列表项的滑动删除已成为提升 用户体验 的标准配置。无论是电商平台的购物车管理，还是社交应用的消息列表，一个流畅且可撤销的 删除操作 能显著降低用户误操作带来的焦虑感。本文将深入探讨如何基于Android官方推荐的 1 day ago · Here’s a brief example of how to set this up: public class ImageAdapter extends RecyclerView. Customizable Item Layouts Aug 3, 2022 · In this tutorial, we’ll be discussing and implementing the RecyclerView Using Data Binding in our Android Application. returns a ViewHolder, then RecyclerView takes that ViewHolder to the Adapter, and tries to bind new data to it. Sep 2, 2021 · RecyclerView 1. 5 days ago · Each individual element in the list is defined by a view holder object. Feb 27, 2020 · "the ViewHolders are different per cell" -- so have each ViewHolder do its own binding by means of its dedicated binding object. ViewHolder (textView) class SleepNightViewHolder private constructor (itemView: View) : RecyclerView. context = context; } @Override public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { Awesome Lists containing this project awesome-android - RecyclerTabLayout - An efficient TabLayout library implemented with RecyclerView. Jun 29, 2014 · LayoutManager ItemAnimator RecyclerView. If RecyclerPool Passes i. Viewholder. GitHub Gist: instantly share code, notes, and snippets. Adapter { private List imagePaths; private Context context; public ImageAdapter(List imagePaths, Context context) { this. In onCreateViewHolder(), the Views are created and the ViewHolder contains references to them so that the RecyclerView. Jul 22, 2023 · Android StudioとKotlinでRecyclerViewを実装する方法と必要になる4つのクラス、AdapterやViewHolder、LayoutManagerの使い方などについてまとめていきます。 I've made a list of items a few times using Android's RecyclerView, but it is a rather complicated process. * * <p>{@link Adapter} implementations should subclass ViewHolder and add fields for The RecyclerView. 1' XML Layout Adapter Class public class MyAdapter extends RecyclerView. Jul 8, 2015 · What difference between static and non static viewholder in RecyclerView Adapter? Asked 10 years, 7 months ago Modified 6 years, 7 months ago Viewed 18k times Jul 23, 2025 · In this article, we will see its implementations in the Adapter class of RecyclerView. ViewHolderとRecyclerView. ViewHolder is an essential component in the RecyclerView framework in Android development. Step by Step Implementation Step 1: Create a new project To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. Click listeners can be defined when ViewHolder views are instantiated. Adapter methods notifyItemInserted (), notifyItemRemoved (), etc. IOW, this is no different than using data binding with RecyclerView, and that combination has been used for a few years. This is my simple adapter and how to Convert it to kotlin use kotlin-android-extensions without ButterKnife? public class RoomA Jan 10, 2017 · RecyclerView exposes the common ViewHolder pattern as a first class citizen in its API. Aug 2, 2021 · After receiving ViewType, RecyclerView checks its RecyclerPool to see if the cache of ViewHolder is present or not. I'm passing the first data in the list like this Jan 10, 2017 · RecyclerView exposes the common ViewHolder pattern as a first class citizen in its API. widget. I want each RecyclerView to display differently with their respective Jan 12, 2016 · Defaultly I set the visibility of the label when I create the view holder and that's fine, but I want the user to change the labels visibility through the menu while the RecyclerView is shown, so I want to manually update the visibility for all existing views in the RecyclerView. 深入了解RecyclerView中ViewHolder的复用机制，它是RecyclerView高效运行的关键。本文探究了ViewHolder的职责、复用流程、优势和最佳实践，为开发者提供全面的指南，以优化其Android应用程序中的列表视图性能。 Aug 31, 2016 · The RecyclerView. data = data; } public static class ViewHolder extends RecyclerView class TextItemViewHolder (val textView: TextView): RecyclerView. movie_database; import android. ViewHolder: Jan 22, 2020 · 今回やること 今更だけど kotlin でRecyclerViewを実装する。(自分用の備忘録としてほしかった) クリックイベント処理の記事が少なかったのでタップしたらトーストを表示するのものを作ってみる。 これ↓! RecyclerViewの配置 android s Oct 3, 2024 · RecyclerView. After the view holder is created, the RecyclerView binds it to its data. It acts as a container for the views that comprise each item in the RecyclerView's layout. ViewHolder - getLayoutPosition vs getAdapterPosition Ask Question Asked 10 years, 11 months ago Modified 4 years, 11 months ago Feb 27, 2020 · "the ViewHolders are different per cell" -- so have each ViewHolder do its own binding by means of its dedicated binding object. ViewHolder { private final TextView tvItem; RecyclerView adapter designed to wrap an existing adapter allowing the addition of header views and footer views. ViewHolder, and pass it the ViewBinding reference directly. ViewHolder> { private String[] data; public MyAdapter(String[] data) { this. - BooksAdapter public void onBindViewHolder (RecyclerView. In your example, You have common_circle_image XML file for RecyclerView item and the generated class is CommonCircleImageBinding so like this you use the onCreateViewHolder to pass the generated binding class to the ViewHolder class Jan 12, 2026 · 文章浏览阅读2. ImageView; import android. ViewHolder extends Object Nov 2, 2020 · 3. Adapter in Android development, detailing its usage, integration, and methods for dynamic list creation. Also Jun 7, 2016 · I think the best way to do that would be to: Keep a subscription reference in the SiteAdapter. Adapter RecylcerViewを表示するためにはこのViewHolderとRecyclerView. Jan 12, 2022 · mViewCacheExtension，RecyclerView只限定了它的取，而没有限定它的存储，我们可以自行设置它的存储结构，在Adapter的某一生命周期对VH进行缓存。 底层的 RecyclerViewPool，当ViewHolder走到这一层时，将会按照 viewType 存储。 RecyclerView. RecyclerView differs from its predecessor ListView primarily because of the following features: Required ViewHolder in Adapters - ListView adapters do not require the use of the ViewHolder pattern to improve performance. Adapter implementation for displaying a list of Book objects. Note: This project is implemented using the Kotlin language. Dec 25, 2016 · 先不管这把所有类都写在RecyclerView内部的做法是否好，但是ViewHolder作为RecyclerView内部复用的单位，直接避免了不必要的findViewById，而在ListView中则需要我们自己定义ViewHolder。 一个使用RecyclerView的示例 在进行探究之前，首先回顾一下我们是如何使用一个RecyclerView Learn how to get a ViewHolder for a specific position in RecyclerView with detailed explanations and code examples. - imuhib25/TeachSync RecyclerView. else use that layout as activity layout – Akshay Bhat 'AB' CommentedJul 29, 2016 at 6:46 put this code in main activity xml – Krishna Kachhela CommentedJul 29, 2016 at 6:48 Aug 3, 2022 · In this tutorial, we’ll be discussing and implementing the RecyclerView Using Data Binding in our Android Application. example. - HeaderViewRecyclerAdapter. En esta guía, se abordan las clases clave, los pasos de implementación y las opciones de personalización para compilar listas dinámicas. ViewHolder provides a base class for defining view holder objects in RecyclerView, enabling efficient management of views within the adapter. view. Android RecyclerView DataBinding In order to know the basics of Android DataBinding, do visit this tutorial. ViewHolder (itemView) { private val res: Resources = itemView. The RecyclerView. What makes me puzzled is how to bind view in Recycleler. ViewHolder - getLayoutPosition vs getAdapterPosition Ask Question Asked 10 years, 11 months ago Modified 4 years, 11 months ago Jun 25, 2017 · ViewHolder的作用我们在上文介绍使使用ListView时已经说到，简而言之就是提高消息，下面我们看一看源码中对ViewHolder的介绍： /** * A ViewHolder describes an item view and metadata about its place within the RecyclerView. 核心定义 Apr 17, 2015 · RecyclerView. lwilnm nelrzt jtvflcl ejgc tarxqdtws cgmqgni dpf druzh oiwqlcq fwz