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Android RecyclerVIew 列表实现 编辑、单选、全选、删除、动画效果（附源码）

2023-09-25 452 推广

前言

眼下都2020年了，你不会还在使用ListView吧？

正文

因为最近写的一个项目里面有关于列表的编辑相关的功能，其实也是类似与腾讯视频的观看历史的列表操作，你可以先尝试一下，写这个主要是业务逻辑要清晰，否则你很容易就会陷进去，走死胡同的。

效果图如下：

源码如下：
RecyclerViewUseDemo

迫不及待想要自己运行在AS中的小伙伴可以直接下载或者克隆，打开即可，想了解具体开发流程和详细的业务逻辑的小伙伴，可以继续往下看，本章很长，请在流量和时间充足的前提下观看，如有问题，评论即可，我会尽快解决，多说无益，开搞~

开发

① 新建项目

这一步没有什么好说的，但是你也要注意自己的Android Studio和Gradle的版本，我的是3.5.2。点击项目创建

② 配置build.gradle

第一步
在工程级别的build.gradle文件中的allprojects{} 闭包中添加maven库

    maven { url "https://jitpack.io" }

第二步
在项目级别的build.gradle文件中的android{}闭包中，配置JDK的版本

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

然后在dependencies{}闭包中添加第三方的依赖库

    //绑定视图
    implementation 'com.jakewharton:butterknife:10.2.1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:10.2.1'
    //RecyclerView
    implementation 'androidx.recyclerview:recyclerview:1.1.0'
    //下拉刷新
    implementation 'com.scwang.smartrefresh:SmartRefreshLayout:1.1.0-alpha-14'
    //RecyclerView适配器
    implementation 'com.github.CymChad:BaseRecyclerViewAdapterHelper:2.9.22'
    //热门强大的图片加载器
    implementation 'com.github.bumptech.glide:glide:4.9.0'

然后右上角 Sync Now，点击同步你的项目配置文件，同步会下载第三方的库文件，等待完成进行下一步。

③ 修改布局

在此之前，为了增加点击效果，在res → drawable 下创建rounded_corners.xml文件
代码如下：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true">
        <shape android:shape="rectangle">
            <solid android:color="#18ffc400"/>
        </shape>
    </item>
    <item android:state_focused="true" android:state_enabled="true">
        <shape android:shape="rectangle">
            <solid android:color="#0f000000"/>
        </shape>
    </item>
</selector>

然后在res下新建一个drawable-v21的文件夹，在文件夹中创建bg_white.xml文件，代码如下：

<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="#20000000"
    android:drawable="@drawable/rounded_corners"/>

在drawable文件下再创建一个shape_blue_bg_5.xml
代码如下：

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="5dp"/>
    <solid android:color="#101B53"/>
</shape>

然后是修改values文件夹下的colors.xml文件，修改原来的并增加几个颜色,

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#1F2B5D</color>
    <color name="colorPrimaryDark">#1F2B5D</color>
    <color name="colorAccent">#D81B60</color>
    <color name="default_color">#48558C</color>
    <color name="selected_color">#009FE8</color>
    <color name="app_color">#1F2B5D</color>
    <color name="app_bg_color">#020C49</color>
    <color name="white">#FFFFFF</color>
    <color name="gray">#8A96A3</color>
    <color name="yellow">#F39700</color>

</resources>

再修改一下styles.xml文件

布局中会用到下面的图片
icon_normal.png

icon_choose_selected.png

icon_choose_default.png

修改activity_main.xml文件，修改后如下图所示

代码如下，复制粘贴即可：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/app_bg_color"
    android:fitsSystemWindows="true"
    tools:context=".MainActivity">


    <!--头部-->
    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="RecyclerView Demo"
            android:textColor="@color/white"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/tv_edit"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="right"
            android:layout_marginRight="8dp"
            android:padding="8dp"
            android:text="编辑"
            android:textColor="@color/white"
            android:textSize="16sp" />
    </androidx.appcompat.widget.Toolbar>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/toolbar"
        android:layout_above="@+id/lay_bottom">
        <!--无数据时的布局-->
        <LinearLayout
            android:id="@+id/rv_normal_show"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:orientation="vertical">

            <ImageView
                android:layout_width="264dp"
                android:layout_height="140dp"
                android:background="@mipmap/icon_normal" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="@dimen/dp_10"
                android:text="空空如也"
                android:textColor="@color/gray"
                android:textSize="18sp" />
        </LinearLayout>

        <!--没有数据时，下拉重新添加数据-->
        <com.scwang.smartrefresh.layout.SmartRefreshLayout
            android:id="@+id/refresh"
            android:layout_width="match_parent"
            android:layout_height="match_parent">
            <!--展示数据的列表-->
            <androidx.recyclerview.widget.RecyclerView
                android:id="@+id/rv"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:padding="12dp"
                android:visibility="gone" />
        </com.scwang.smartrefresh.layout.SmartRefreshLayout>

    </RelativeLayout>

    <!--底部-->
    <LinearLayout
        android:id="@+id/lay_bottom"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_alignParentBottom="true"
        android:background="@color/colorPrimary"
        android:orientation="horizontal"
        android:visibility="gone">

        <TextView
            android:id="@+id/tv_check_all"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:foreground="@drawable/bg_white"
            android:gravity="center"
            android:text="全选"
            android:textColor="@color/white"
            android:textSize="@dimen/sp_14" />

        <View
            android:layout_width="1dp"
            android:layout_height="match_parent"
            android:layout_marginTop="12dp"
            android:layout_marginBottom="12dp"
            android:background="@color/app_bg_color" />

        <TextView
            android:id="@+id/tv_delete"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:foreground="@drawable/bg_white"
            android:gravity="center"
            android:text="删除"
            android:textColor="@color/yellow"
            android:textSize="14sp" />
    </LinearLayout>

</RelativeLayout>

然后是创建一个数据实体DataResponse.java

代码如下，复制粘贴即可：

package com.llw.recyclerviewusedemo;

import java.util.List;

/**
 * 数据实体
 */
public class DataResponse {


    /**
     * data : [{"_id":"5e959250808d6d2fe6b56eda","author":"鸢媛","category":"Girl","createdAt":"2020-05-25 08:00:00","desc":"与其安慰自己平凡可贵，n不如拼尽全力活得漂亮。 u200b u200bu200bu200bu200b","images":["http://gank.io/images/f4f6d68bf30147e1bdd4ddbc6ad7c2a2"],"likeCounts":0,"publishedAt":"2020-05-25 08:00:00","stars":1,"title":"第96期","type":"Girl","url":"http://gank.io/images/f4f6d68bf30147e1bdd4ddbc6ad7c2a2","views":131},{"_id":"5e95923f808d6d2fe6b56ed8","author":"鸢媛","category":"Girl","createdAt":"2020-05-24 08:00:00","desc":"这世界总有人在笨拙地爱着你，想把全部的温柔都给你。 u200bu200bu200bu200b","images":["http://gank.io/images/dc75cbde1d98448183e2f9514b4d1320"],"likeCounts":0,"publishedAt":"2020-05-24 08:00:00","stars":1,"title":"第95期","type":"Girl","url":"http://gank.io/images/dc75cbde1d98448183e2f9514b4d1320","views":133},{"_id":"5e95922e808d6d2fe6b56ed6","author":"鸢媛","category":"Girl","createdAt":"2020-05-23 08:00:00","desc":"陪伴本来就是这世界上最了不起的安慰u200b。","images":["http://gank.io/images/6b2efa591564475fb8bc32291fb0007c"],"likeCounts":0,"publishedAt":"2020-05-23 08:00:00","stars":1,"title":"第94期","type":"Girl","url":"http://gank.io/images/6b2efa591564475fb8bc32291fb0007c","views":135},{"_id":"5e959200ee6ba981da2af34d","author":"鸢媛","category":"Girl","createdAt":"2020-05-22 08:00:00","desc":"长不过执念，短不过善变。","images":["http://gank.io/images/d6bba8cf5b8c40f9ad229844475e9149"],"likeCounts":0,"publishedAt":"2020-05-22 08:00:00","stars":1,"title":"第93期","type":"Girl","url":"http://gank.io/images/d6bba8cf5b8c40f9ad229844475e9149","views":192},{"_id":"5e9591dcee6ba981da2af34b","author":"鸢媛","category":"Girl","createdAt":"2020-05-21 08:00:00","desc":"无论多么艰难的现在，终会翻篇。n朝未来大步向前吧，别丧，别止步。","images":["http://gank.io/images/9fa43020cf724c69842eec3e13f6d21c"],"likeCounts":1,"publishedAt":"2020-05-21 08:00:00","stars":1,"title":"第92期","type":"Girl","url":"http://gank.io/images/9fa43020cf724c69842eec3e13f6d21c","views":176},{"_id":"5e9591c60bd5529b54e712af","author":"鸢媛","category":"Girl","createdAt":"2020-05-20 08:00:00","desc":"希望下一次，能喜欢上一个也喜欢自己的人 u200bu200bu200bu200b。","images":["http://gank.io/images/d237f507bf1946d2b0976e581f8aab9b"],"likeCounts":0,"publishedAt":"2020-05-20 08:00:00","stars":1,"title":"第91期","type":"Girl","url":"http://gank.io/images/d237f507bf1946d2b0976e581f8aab9b","views":180},{"_id":"5e9591b6808d6d2fe6b56ed5","author":"鸢媛","category":"Girl","createdAt":"2020-05-19 08:00:00","desc":"这个世界上，n有些人有多冷漠，n有些人就有多温暖，n希望你总会遇到那些温暖对你的人。","images":["http://gank.io/images/25d3e3db2c1248bb917c09dc4f50a46f"],"likeCounts":0,"publishedAt":"2020-05-19 08:00:00","stars":1,"title":"第90期","type":"Girl","url":"http://gank.io/images/25d3e3db2c1248bb917c09dc4f50a46f","views":255},{"_id":"5e9591a2ee6ba981da2af34a","author":"鸢媛","category":"Girl","createdAt":"2020-05-18 08:00:00","desc":"以前对你的喜欢，n是见你，念你，陪伴你。n现在对你的喜欢，n是不问，不看，不叨扰。","images":["http://gank.io/images/19c99c447e0a40a6b3ff89951957cfb1"],"likeCounts":0,"publishedAt":"2020-05-18 08:00:00","stars":1,"title":"第89期","type":"Girl","url":"http://gank.io/images/19c99c447e0a40a6b3ff89951957cfb1","views":240},{"_id":"5e959197808d6d2fe6b56ed4","author":"鸢媛","category":"Girl","createdAt":"2020-05-17 08:00:00","desc":"只要结局是喜剧，过程你要我怎么哭都行，幸福可以来的慢一些，n只要它是真的，如果最后能在一起，晚点我真的无所谓的。","images":["http://gank.io/images/f0c192e3e335400db8a709a07a891b2e"],"likeCounts":0,"publishedAt":"2020-05-17 08:00:00","stars":1,"title":"第88期","type":"Girl","url":"http://gank.io/images/f0c192e3e335400db8a709a07a891b2e","views":275},{"_id":"5e95915f808d6d2fe6b56ed3","author":"鸢媛","category":"Girl","createdAt":"2020-05-16 08:00:00","desc":"若不是情深似海，思念又怎会泛滥成灾。","images":["http://gank.io/images/bdb35e4b3c0045c799cc7a494a3db3e0"],"likeCounts":0,"publishedAt":"2020-05-16 08:00:00","stars":1,"title":"第87期","type":"Girl","url":"http://gank.io/images/bdb35e4b3c0045c799cc7a494a3db3e0","views":437}]
     * page : 1
     * page_count : 10
     * status : 100
     * total_counts : 96
     */

    private int page;
    private int page_count;
    private int status;
    private int total_counts;
    private List data;

    public int getPage() {
        return page;
    }

    public void setPage(int page) {
        this.page = page;
    }

    public int getPage_count() {
        return page_count;
    }

    public void setPage_count(int page_count) {
        this.page_count = page_count;
    }

    public int getStatus() {
        return status;
    }

    public void setStatus(int status) {
        this.status = status;
    }

    public int getTotal_counts() {
        return total_counts;
    }

    public void setTotal_counts(int total_counts) {
        this.total_counts = total_counts;
    }

    public List getData() {
        return data;
    }

    public void setData(List data) {
        this.data = data;
    }

    public static class DataBean {
        /**
         * _id : 5e959250808d6d2fe6b56eda
         * author : 鸢媛
         * category : Girl
         * createdAt : 2020-05-25 08:00:00
         * desc : 与其安慰自己平凡可贵，
         不如拼尽全力活得漂亮。 ​ ​​​​
         * images : ["http://gank.io/images/f4f6d68bf30147e1bdd4ddbc6ad7c2a2"]
         * likeCounts : 0
         * publishedAt : 2020-05-25 08:00:00
         * stars : 1
         * title : 第96期
         * type : Girl
         * url : http://gank.io/images/f4f6d68bf30147e1bdd4ddbc6ad7c2a2
         * views : 131
         */

        private String _id;
        private String author;
        private String category;
        private String createdAt;
        private String desc;
        private int likeCounts;
        private String publishedAt;
        private int stars;
        private String title;
        private String type;
        private String url;
        private int views;
        private List images;
        private boolean select = false;

        public String get_id() {
            return _id;
        }

        public void set_id(String _id) {
            this._id = _id;
        }

        public String getAuthor() {
            return author;
        }

        public void setAuthor(String author) {
            this.author = author;
        }

        public String getCategory() {
            return category;
        }

        public void setCategory(String category) {
            this.category = category;
        }

        public String getCreatedAt() {
            return createdAt;
        }

        public void setCreatedAt(String createdAt) {
            this.createdAt = createdAt;
        }

        public String getDesc() {
            return desc;
        }

        public void setDesc(String desc) {
            this.desc = desc;
        }

        public int getLikeCounts() {
            return likeCounts;
        }

        public void setLikeCounts(int likeCounts) {
            this.likeCounts = likeCounts;
        }

        public String getPublishedAt() {
            return publishedAt;
        }

        public void setPublishedAt(String publishedAt) {
            this.publishedAt = publishedAt;
        }

        public int getStars() {
            return stars;
        }

        public void setStars(int stars) {
            this.stars = stars;
        }

        public String getTitle() {
            return title;
        }

        public void setTitle(String title) {
            this.title = title;
        }

        public String getType() {
            return type;
        }

        public void setType(String type) {
            this.type = type;
        }

        public String getUrl() {
            return url;
        }

        public void setUrl(String url) {
            this.url = url;
        }

        public int getViews() {
            return views;
        }

        public void setViews(int views) {
            this.views = views;
        }

        public List getImages() {
            return images;
        }

        public void setImages(List images) {
            this.images = images;
        }

        public boolean isSelect() {
            return select;
        }

        public void setSelect(boolean select) {
            this.select = select;
        }
    }
}

再创建一个JsonData.java，存放用于转换的JSON数据

代码如下，复制粘贴即可：

package com.llw.recyclerviewusedemo;

public class JsonData {
/*
* 提示：该行代码过长，系统自动注释不进行高亮。一键复制会移除系统注释 
* public static String JSON = "{"data":[{"_id":"5e959250808d6d2fe6b56eda","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-25 08:00:00","desc":"\u4e0e\u5176\u5b89\u6170\u81ea\u5df1\u5e73\u51e1\u53ef\u8d35\uff0c\n\u4e0d\u5982\u62fc\u5c3d\u5168\u529b\u6d3b\u5f97\u6f02\u4eae\u3002 \u200b \u200b\u200b\u200b\u200b","images":["http://gank.io/images/f4f6d68bf30147e1bdd4ddbc6ad7c2a2"],"likeCounts":0,"publishedAt":"2020-05-25 08:00:00","stars":1,"title":"\u7b2c96\u671f","type":"Girl","url":"http://gank.io/images/f4f6d68bf30147e1bdd4ddbc6ad7c2a2","views":131},{"_id":"5e95923f808d6d2fe6b56ed8","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-24 08:00:00","desc":"\u8fd9\u4e16\u754c\u603b\u6709\u4eba\u5728\u7b28\u62d9\u5730\u7231\u7740\u4f60\uff0c\u60f3\u628a\u5168\u90e8\u7684\u6e29\u67d4\u90fd\u7ed9\u4f60\u3002 \u200b\u200b\u200b\u200b","images":["http://gank.io/images/dc75cbde1d98448183e2f9514b4d1320"],"likeCounts":0,"publishedAt":"2020-05-24 08:00:00","stars":1,"title":"\u7b2c95\u671f","type":"Girl","url":"http://gank.io/images/dc75cbde1d98448183e2f9514b4d1320","views":133},{"_id":"5e95922e808d6d2fe6b56ed6","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-23 08:00:00","desc":"\u966a\u4f34\u672c\u6765\u5c31\u662f\u8fd9\u4e16\u754c\u4e0a\u6700\u4e86\u4e0d\u8d77\u7684\u5b89\u6170\u200b\u3002","images":["http://gank.io/images/6b2efa591564475fb8bc32291fb0007c"],"likeCounts":0,"publishedAt":"2020-05-23 08:00:00","stars":1,"title":"\u7b2c94\u671f","type":"Girl","url":"http://gank.io/images/6b2efa591564475fb8bc32291fb0007c","views":135},{"_id":"5e959200ee6ba981da2af34d","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-22 08:00:00","desc":"\u957f\u4e0d\u8fc7\u6267\u5ff5\uff0c\u77ed\u4e0d\u8fc7\u5584\u53d8\u3002","images":["http://gank.io/images/d6bba8cf5b8c40f9ad229844475e9149"],"likeCounts":0,"publishedAt":"2020-05-22 08:00:00","stars":1,"title":"\u7b2c93\u671f","type":"Girl","url":"http://gank.io/images/d6bba8cf5b8c40f9ad229844475e9149","views":192},{"_id":"5e9591dcee6ba981da2af34b","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-21 08:00:00","desc":"\u65e0\u8bba\u591a\u4e48\u8270\u96be\u7684\u73b0\u5728\uff0c\u7ec8\u4f1a\u7ffb\u7bc7\u3002\n\u671d\u672a\u6765\u5927\u6b65\u5411\u524d\u5427\uff0c\u522b\u4e27\uff0c\u522b\u6b62\u6b65\u3002","images":["http://gank.io/images/9fa43020cf724c69842eec3e13f6d21c"],"likeCounts":1,"publishedAt":"2020-05-21 08:00:00","stars":1,"title":"\u7b2c92\u671f","type":"Girl","url":"http://gank.io/images/9fa43020cf724c69842eec3e13f6d21c","views":176},{"_id":"5e9591c60bd5529b54e712af","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-20 08:00:00","desc":"\u5e0c\u671b\u4e0b\u4e00\u6b21\uff0c\u80fd\u559c\u6b22\u4e0a\u4e00\u4e2a\u4e5f\u559c\u6b22\u81ea\u5df1\u7684\u4eba \u200b\u200b\u200b\u200b\u3002","images":["http://gank.io/images/d237f507bf1946d2b0976e581f8aab9b"],"likeCounts":0,"publishedAt":"2020-05-20 08:00:00","stars":1,"title":"\u7b2c91\u671f","type":"Girl","url":"http://gank.io/images/d237f507bf1946d2b0976e581f8aab9b","views":180},{"_id":"5e9591b6808d6d2fe6b56ed5","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-19 08:00:00","desc":"\u8fd9\u4e2a\u4e16\u754c\u4e0a\uff0c\n\u6709\u4e9b\u4eba\u6709\u591a\u51b7\u6f20\uff0c\n\u6709\u4e9b\u4eba\u5c31\u6709\u591a\u6e29\u6696\uff0c\n\u5e0c\u671b\u4f60\u603b\u4f1a\u9047\u5230\u90a3\u4e9b\u6e29\u6696\u5bf9\u4f60\u7684\u4eba\u3002","images":["http://gank.io/images/25d3e3db2c1248bb917c09dc4f50a46f"],"likeCounts":0,"publishedAt":"2020-05-19 08:00:00","stars":1,"title":"\u7b2c90\u671f","type":"Girl","url":"http://gank.io/images/25d3e3db2c1248bb917c09dc4f50a46f","views":255},{"_id":"5e9591a2ee6ba981da2af34a","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-18 08:00:00","desc":"\u4ee5\u524d\u5bf9\u4f60\u7684\u559c\u6b22\uff0c\n\u662f\u89c1\u4f60\uff0c\u5ff5\u4f60\uff0c\u966a\u4f34\u4f60\u3002\n\u73b0\u5728\u5bf9\u4f60\u7684\u559c\u6b22\uff0c\n\u662f\u4e0d\u95ee\uff0c\u4e0d\u770b\uff0c\u4e0d\u53e8\u6270\u3002","images":["http://gank.io/images/19c99c447e0a40a6b3ff89951957cfb1"],"likeCounts":0,"publishedAt":"2020-05-18 08:00:00","stars":1,"title":"\u7b2c89\u671f","type":"Girl","url":"http://gank.io/images/19c99c447e0a40a6b3ff89951957cfb1","views":240},{"_id":"5e959197808d6d2fe6b56ed4","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-17 08:00:00","desc":"\u53ea\u8981\u7ed3\u5c40\u662f\u559c\u5267\uff0c\u8fc7\u7a0b\u4f60\u8981\u6211\u600e\u4e48\u54ed\u90fd\u884c\uff0c\u5e78\u798f\u53ef\u4ee5\u6765\u7684\u6162\u4e00\u4e9b\uff0c\n\u53ea\u8981\u5b83\u662f\u771f\u7684\uff0c\u5982\u679c\u6700\u540e\u80fd\u5728\u4e00\u8d77\uff0c\u665a\u70b9\u6211\u771f\u7684\u65e0\u6240\u8c13\u7684\u3002","images":["http://gank.io/images/f0c192e3e335400db8a709a07a891b2e"],"likeCounts":0,"publishedAt":"2020-05-17 08:00:00","stars":1,"title":"\u7b2c88\u671f","type":"Girl","url":"http://gank.io/images/f0c192e3e335400db8a709a07a891b2e","views":275},{"_id":"5e95915f808d6d2fe6b56ed3","author":"\u9e22\u5a9b","category":"Girl","createdAt":"2020-05-16 08:00:00","desc":"\u82e5\u4e0d\u662f\u60c5\u6df1\u4f3c\u6d77\uff0c\u601d\u5ff5\u53c8\u600e\u4f1a\u6cdb\u6ee5\u6210\u707e\u3002","images":["http://gank.io/images/bdb35e4b3c0045c799cc7a494a3db3e0"],"likeCounts":0,"publishedAt":"2020-05-16 08:00:00","stars":1,"title":"\u7b2c87\u671f","type":"Girl","url":"http://gank.io/images/bdb35e4b3c0045c799cc7a494a3db3e0","views":437}],"page":1,"page_count":10,"status":100,"total_counts":96}";
*/
}

④ 创建列表的item布局文件

在layout文件下创建item_data_list.xml布局文件

代码如下：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="12dp"
    android:orientation="vertical">

    <LinearLayout
        android:id="@+id/item_data"
        android:foreground="@drawable/bg_white"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/shape_blue_bg_5"
        android:gravity="center_vertical"
        android:orientation="horizontal"
        android:padding="12dp">

        <ImageView
            android:id="@+id/iv_check"
            android:layout_width="20dp"
            android:layout_height="20dp"
            android:layout_marginRight="12dp"
            android:background="@mipmap/icon_choose_default"
            android:button="@null" />


        <ImageView
            android:id="@+id/iv_img"
            android:layout_width="150dp"
            android:layout_height="200dp"
            android:background="@drawable/ic_launcher_background"
            android:scaleType="centerCrop" />


        <TextView
            android:id="@+id/tv_video_info"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="12dp"
            android:text="测试数据"
            android:textColor="@color/white"
            android:textSize="16sp" />
    </LinearLayout>
</LinearLayout>

⑤ 列表适配器

创建一个适配器DataAdapter.java

代码如下：

package com.llw.recyclerviewusedemo;

import android.view.View;
import android.widget.ImageView;

import androidx.annotation.Nullable;

import com.bumptech.glide.Glide;
import com.chad.library.adapter.base.BaseQuickAdapter;
import com.chad.library.adapter.base.BaseViewHolder;

import java.util.List;

/**
 * 适配器
 */
public class DataAdapter extends BaseQuickAdapter {

    private static final int STATE_DEFAULT = 0;//默认状态
    int mEditMode = STATE_DEFAULT;

    public DataAdapter(int layoutResId, @Nullable List data) {
        super(layoutResId, data);
    }

    @Override
    protected void convert(BaseViewHolder helper, DataResponse.DataBean item) {
        //Glide加载网络图片
        Glide.with(mContext).load(item.getUrl()).into((ImageView) helper.getView(R.id.iv_img));
        //TextView赋值
        helper.setText(R.id.tv_video_info, item.getAuthor());

        helper.addOnClickListener(R.id.item_data);//添加item点击事件

        if (mEditMode == STATE_DEFAULT) {
            //默认不显示
            helper.getView(R.id.iv_check).setVisibility(View.GONE);
        } else {
            //显示   显示之后再做点击之后的判断
            helper.getView(R.id.iv_check).setVisibility(View.VISIBLE);

            if (item.isSelect()) {//点击时，true 选中
                helper.getView(R.id.iv_check).setBackgroundResource(R.mipmap.icon_choose_selected);
            } else {//false 取消选中
                helper.getView(R.id.iv_check).setBackgroundResource(R.mipmap.icon_choose_default);
            }
        }
    }

    /**
     * 设置编辑状态   接收Activity中传递的值，并改变Adapter的状态
     */
    public void setEditMode(int editMode) {
        mEditMode = editMode;
        notifyDataSetChanged();//刷新
    }
}

⑥ 主要逻辑编写

进入到MainActivity.java

这里绑定一些控件并声明一些需要用到的变量

初始化列表数据

    //初始化列表数据
    private void initList() {
        mAdapter = new DataAdapter(R.layout.item_data_list, mList);//绑定视图和数据
        rv.setLayoutManager(new LinearLayoutManager(this));//设置线性布局管理器
        rv.setAdapter(mAdapter);//设置适配器

        Gson gson = new Gson();
        DataResponse dataBean = gson.fromJson(JsonData.JSON, DataResponse.class);//解析数据
        List resultsBeans = dataBean.getData();

        if (resultsBeans.size() > 0) {
            mList.clear();
            mList.addAll(resultsBeans);
            mAdapter.notifyDataSetChanged();//刷新数据
            rv.setVisibility(View.VISIBLE);
            rvNormalShow.setVisibility(View.GONE);
        } else {
            rv.setVisibility(View.GONE);
            rvNormalShow.setVisibility(View.VISIBLE);
        }
        refresh.finishRefresh();//数据加载出来之后，结束下拉动作
    }

处理点击事件

    //页面的点击事件
    @OnClick({R.id.tv_edit, R.id.tv_check_all, R.id.tv_delete})
    public void onViewClicked(View view) {
        switch (view.getId()) {
            case R.id.tv_edit://编辑
                updateEditState();
                break;
            case R.id.tv_check_all://全选
                setAllItemChecked();
                break;
            case R.id.tv_delete://删除
                deleteCheckItem();
                break;
        }
    }

改变编辑状态

    //改变编辑状态
    private void updateEditState() {
        mEditMode = mEditMode == STATE_DEFAULT ? STATE_EDIT : STATE_DEFAULT;
        if (mEditMode == STATE_EDIT) {
            tvEdit.setText("取消");
            layBottom.setVisibility(View.VISIBLE);
            editorStatus = true;//处于编辑状态
        } else {
            tvEdit.setText("编辑");
            layBottom.setVisibility(View.GONE);
            editorStatus = false;//处于默认状态

            setAllItemUnchecked();//取消全选
        }
        mAdapter.setEditMode(mEditMode);//刷新Adapter

        mAdapter.setOnItemChildClickListener(new BaseQuickAdapter.OnItemChildClickListener() {
            @Override
            public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
                if (editorStatus) {//编辑状态
                    DataResponse.DataBean dataBean = mList.get(position);//赋值
                    boolean isSelect = dataBean.isSelect();
                    if (!isSelect) {
                        index++;
                        dataBean.setSelect(true);

                    } else {
                        dataBean.setSelect(false);
                        index--;
                    }
                    if (index == 0) {//当前选中item数量
                        tvDelete.setText("删除");
                    } else {
                        tvDelete.setText("删除(" + index + ")");
                    }

                    mAdapter.notifyDataSetChanged();
                }
            }
        });
    }

全部选中

    //全部选中
    private void setAllItemChecked() {
        if (mAdapter == null) return;
        for (int i = 0; i < mList.size(); i++) {
            mList.get(i).setSelect(true);
        }
        mAdapter.notifyDataSetChanged();
        index = mList.size();
        tvDelete.setText("删除(" + index + ")");
    }

取消全部选中

    //取消全部选中
    private void setAllItemUnchecked() {
        if (mAdapter == null) return;
        for (int i = 0; i < mList.size(); i++) {
            mList.get(i).setSelect(false);
        }
        mAdapter.notifyDataSetChanged();
        tvDelete.setText("删除");
        index = 0;
    }

删除选中的item

    //删除选中的item
    private void deleteCheckItem() {
        if (mAdapter == null) return;
        for (int i = mList.size() - 1; i >= 0; i--) {
            if (mList.get(i).isSelect() == true) {
                mList.remove(i);
            }
        }

        //删除选中的item之后判断是否还有数据，没有则退出编辑模式
        if (mList.size() != 0) {
            index = 0;//删除之后置为0
            tvDelete.setText("删除");
        }else {
            tvEdit.setText("编辑");
            layBottom.setVisibility(View.GONE);
            editorStatus = false;
            //没有数据自然也不存在编辑了
            tvEdit.setVisibility(View.GONE);
            rvNormalShow.setVisibility(View.VISIBLE);
            //启用下拉
            refresh.setEnableRefresh(true);
            //下拉刷新
            refresh.setOnRefreshListener(refreshLayout -> {
                //重新装填数据
                initList();
                mEditMode = STATE_DEFAULT;//恢复默认状态
                editorStatus = false;//恢复默认状态
                tvEdit.setVisibility(View.VISIBLE);//显示编辑
            });
        }
        mAdapter.notifyDataSetChanged();//刷新
    }

最后在onCreate()方法中使用

     @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);

        initList();

        //禁用下拉和上拉
        refresh.setEnableRefresh(false);
        refresh.setEnableLoadMore(false);
    }

做完这些基本上功能就已经都实现了，下面就是锦上添花了，增加动画效果，

⑦ 增加动画效果

列表的出现动画，在res下创建一个anim文件夹，这下面有两个xml文件

layout_animation_from_bottom.xml

<?xml version="1.0" encoding="utf-8"?>
<layoutAnimation
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:animation="@anim/item_animation_from_bottom"
    android:delay="15%"
    android:animationOrder="normal"
    />

item_animation_from_bottom.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="500">

    <translate
        android:fromYDelta="50%p"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:toYDelta="0" />

    <alpha
        android:fromAlpha="0"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:toAlpha="1" />

</set>

然后创建一个动画类RecyclerViewAnimation.java，用来使用

代码如下：

package com.llw.recyclerviewusedemo;

import android.content.Context;
import android.view.animation.AnimationUtils;
import android.view.animation.LayoutAnimationController;

import androidx.recyclerview.widget.RecyclerView;


/**
 * RecyclerView动画
 */

public class RecyclerViewAnimation {

    //数据变化时显示动画
    public static void runLayoutAnimation(final RecyclerView recyclerView) {
        final Context context = recyclerView.getContext();
        final LayoutAnimationController controller =
                AnimationUtils.loadLayoutAnimation(context, R.anim.layout_animation_from_bottom);

        recyclerView.setLayoutAnimation(controller);
        recyclerView.getAdapter().notifyDataSetChanged();
        recyclerView.scheduleLayoutAnimation();
    }
}

使用方法

import static com.llw.recyclerviewusedemo.RecyclerViewAnimation.runLayoutAnimation;//导入

MainActivity.java完整代码

package com.llw.recyclerviewusedemo;

import android.os.Bundle;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import com.chad.library.adapter.base.BaseQuickAdapter;
import com.google.gson.Gson;
import com.scwang.smartrefresh.layout.SmartRefreshLayout;

import java.util.ArrayList;
import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;

import static com.llw.recyclerviewusedemo.RecyclerViewAnimation.runLayoutAnimation;

public class MainActivity extends AppCompatActivity {

    @BindView(R.id.tv_edit)
    TextView tvEdit;//编辑
    @BindView(R.id.rv_normal_show)
    LinearLayout rvNormalShow;//没有数据时展示的布局
    @BindView(R.id.rv)
    RecyclerView rv;//列表
    @BindView(R.id.refresh)
    SmartRefreshLayout refresh;//刷新布局
    @BindView(R.id.tv_check_all)
    TextView tvCheckAll;//全选
    @BindView(R.id.tv_delete)
    TextView tvDelete;//删除
    @BindView(R.id.lay_bottom)
    LinearLayout layBottom;//底部布局

    private static final int STATE_DEFAULT = 0;//默认状态
    private static final int STATE_EDIT = 1;//编辑状态
    private int mEditMode = STATE_DEFAULT;
    private boolean editorStatus = false;//是否为编辑状态
    private int index = 0;//当前选中的item数

    List mList = new ArrayList<>();//列表
    DataAdapter mAdapter;//适配器

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);

        initList();

        //禁用下拉和上拉
        refresh.setEnableRefresh(false);
        refresh.setEnableLoadMore(false);
    }

    //初始化列表数据
    private void initList() {
        mAdapter = new DataAdapter(R.layout.item_data_list, mList);//绑定视图和数据
        rv.setLayoutManager(new LinearLayoutManager(this));//设置线性布局管理器
        rv.setAdapter(mAdapter);//设置适配器

        Gson gson = new Gson();
        DataResponse dataBean = gson.fromJson(JsonData.JSON, DataResponse.class);//解析数据
        List resultsBeans = dataBean.getData();

        if (resultsBeans.size() > 0) {
            mList.clear();
            mList.addAll(resultsBeans);
            mAdapter.notifyDataSetChanged();//刷新数据
            runLayoutAnimation(rv);//动画显示
            rv.setVisibility(View.VISIBLE);
            rvNormalShow.setVisibility(View.GONE);
        } else {
            rv.setVisibility(View.GONE);
            rvNormalShow.setVisibility(View.VISIBLE);
        }
        refresh.finishRefresh();//数据加载出来之后，结束下拉动作
    }

    //页面的点击事件
    @OnClick({R.id.tv_edit, R.id.tv_check_all, R.id.tv_delete})
    public void onViewClicked(View view) {
        switch (view.getId()) {
            case R.id.tv_edit://编辑
                updateEditState();
                break;
            case R.id.tv_check_all://全选
                setAllItemChecked();
                break;
            case R.id.tv_delete://删除
                deleteCheckItem();
                break;
        }
    }

    //改变编辑状态
    private void updateEditState() {
        mEditMode = mEditMode == STATE_DEFAULT ? STATE_EDIT : STATE_DEFAULT;
        if (mEditMode == STATE_EDIT) {
            tvEdit.setText("取消");
            layBottom.setVisibility(View.VISIBLE);
            editorStatus = true;
        } else {
            tvEdit.setText("编辑");
            layBottom.setVisibility(View.GONE);
            editorStatus = false;

            setAllItemUnchecked();//取消全选
        }
        mAdapter.setEditMode(mEditMode);

        mAdapter.setOnItemChildClickListener(new BaseQuickAdapter.OnItemChildClickListener() {
            @Override
            public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
                if (editorStatus) {//编辑状态
                    DataResponse.DataBean dataBean = mList.get(position);
                    boolean isSelect = dataBean.isSelect();
                    if (!isSelect) {
                        index++;
                        dataBean.setSelect(true);

                    } else {
                        dataBean.setSelect(false);
                        index--;
                    }
                    if (index == 0) {
                        tvDelete.setText("删除");
                    } else {
                        tvDelete.setText("删除(" + index + ")");
                    }

                    mAdapter.notifyDataSetChanged();
                }
            }
        });
    }

    //全部选中
    private void setAllItemChecked() {
        if (mAdapter == null) return;
        for (int i = 0; i < mList.size(); i++) {
            mList.get(i).setSelect(true);
        }
        mAdapter.notifyDataSetChanged();
        index = mList.size();
        tvDelete.setText("删除(" + index + ")");
    }

    //取消全部选中
    private void setAllItemUnchecked() {
        if (mAdapter == null) return;
        for (int i = 0; i < mList.size(); i++) {
            mList.get(i).setSelect(false);
        }
        mAdapter.notifyDataSetChanged();
        tvDelete.setText("删除");
        index = 0;
    }



    //删除选中的item
    private void deleteCheckItem() {
        if (mAdapter == null) return;

        for (int i = mList.size() - 1; i >= 0; i--) {

            if (mList.get(i).isSelect() == true) {
                mList.remove(i);
            }
        }

        //删除选中的item之后判断是否还有数据，没有则退出编辑模式
        if (mList.size() != 0) {
            index = 0;//删除之后置为0
            tvDelete.setText("删除");
        }else {
            tvEdit.setText("编辑");
            layBottom.setVisibility(View.GONE);
            editorStatus = false;
            //没有数据自然也不存在编辑了
            tvEdit.setVisibility(View.GONE);
            rvNormalShow.setVisibility(View.VISIBLE);
            //启用下拉
            refresh.setEnableRefresh(true);

            //下拉刷新
            refresh.setOnRefreshListener(refreshLayout -> {
                //重新装填数据
                initList();
                index = 0;
                mEditMode = STATE_DEFAULT;//恢复默认状态
                editorStatus = false;//恢复默认状态
                tvDelete.setText("删除");
                tvEdit.setVisibility(View.VISIBLE);//显示编辑
            });
        }

        mAdapter.notifyDataSetChanged();
        runLayoutAnimation(rv);//动画显示
    }
}

文章来源于互联网:Android RecyclerVIew 列表实现 编辑、单选、全选、删除、动画效果（附源码）

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