Android仿京东App购物车二级列表+全选反选＋Ok封装+拦截器+结算+商品数量计算(完整代码)

复制即用,阅读即懂

需要注入依赖和网络权限ImageLoader的App

//Ok请求

compile 'com.squareup.okhttp3:okhttp:3.9.1'

//Gson解析
compile 'com.google.code.gson:gson:2.2.4'

//EventBus传递
compile 'org.greenrobot:eventbus:3.1.1'

//ImageLoader
compile files('libs/universal-image-loader-1.9.5.jar')

主布局头部布局加二级列表(activity_main)

<?xml version="1.0" encoding="utf-8"?>

商家店铺名称,一级标题布局(layout_group)

<?xml version="1.0" encoding="utf-8"?>

商品列表,二级标题布局(layout_child)

<?xml version="1.0" encoding="utf-8"?>

自定义拦截器(Intercept)

import java.io.IOException;import okhttp3.HttpUrl;import okhttp3.Interceptor;import okhttp3.Request;import okhttp3.Response;/** * author:Created by ZhangPengFei on 2017/12/19. */public class Intercept implements Interceptor {    @Override    public Response intercept(Chain chain) throws IOException {        Request original = chain.request();        HttpUrl url=original.url().newBuilder()                .addQueryParameter("source","android")                .build();        //添加请求头        Request request = original.newBuilder()                .url(url)                .build();        return chain.proceed(request);    }}

Ok封装的工具请求类(OKHttpUtils)

/** * author:Created by ZhangPengFei on 2017/12/19. */import android.os.Handler;import android.util.Log;import java.io.IOException;import java.util.Map;import okhttp3.Call;import okhttp3.Callback;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.Response;/** * author:Created by WangZhiQiang on 2017/12/5. */public class OKHttpUtils {    private static OKHttpUtils okHttpUtils;    private static Handler handler = new Handler();    //私有化构造方法    public OKHttpUtils() {    }    /**     * 获取OKhttpClient实例化     */    public static OKHttpUtils getInstance() {        if (null == okHttpUtils) {            synchronized (OKHttpUtils.class) {                if (null == okHttpUtils) {                    okHttpUtils = new OKHttpUtils();                }            }        }        return okHttpUtils;    }    /**     * 封装的异步Get请求     */    public void doGet(String path, Map map, final IOkHttpUtils okHttpCallBack) {        //创建一个字符串容器        StringBuilder sb = null;        if (map.size() == 0) {            if (null == sb) {                sb = new StringBuilder();                sb.append(path);            }        } else {            for (String key : map.keySet()) {                if (null == sb) {                    sb = new StringBuilder();                    sb.append(path);                    sb.append("?");                } else {                    sb.append("&");                }                sb.append(key).append("=").append(map.get(key));            }        }        //System.out.println("分类 : "+path + sb.toString());        OkHttpClient okHttpClient = new OkHttpClient.Builder()                .addInterceptor(new Intercept())//使用拦截器                .build();        Request request = new Request.Builder()                .url(sb.toString())                .get()                .build();        //OKHttp 网络        Call call = okHttpClient.newCall(request);        //异步请求        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                //请求失败                Log.e("SKN", "OK请求失败");                okHttpCallBack.onFailed(e.getMessage());            }            @Override            public void onResponse(Call call, final Response response) throws IOException {                final String str = response.body().string();                //请求成功                handler.post(new Runnable() {                    @Override                    public void run() {                        Log.e("WWWW", "请求成功" + str);                        okHttpCallBack.onSuccess(str);                    }                });            }        });    }}

Ok封装工具类的接口(IOkHttpUtils)

/** * author:Created by ZhangPengFei on 2017/12/19. *//** * author:Created by Androidon 2017/12/10. */public interface IOkHttpUtils {    void onSuccess(String str);    void onFailed(String message);}

ImageLoader工具封装类

import android.app.Application;import com.nostra13.universalimageloader.cache.memory.impl.UsingFreqLimitedMemoryCache;import com.nostra13.universalimageloader.core.DisplayImageOptions;import com.nostra13.universalimageloader.core.ImageLoader;import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;import com.nostra13.universalimageloader.core.assist.QueueProcessingType;import com.nostra13.universalimageloader.core.download.BaseImageDownloader;/** * author:Created by ZhangPengFei on 2017/12/19. */public class ImageApp extends Application {    @Override    public void onCreate() {        super.onCreate();        ImageLoaderConfiguration config = new ImageLoaderConfiguration                .Builder(this)                .memoryCacheExtraOptions(480, 800) // max width, max height，即保存的每个缓存文件的最大长宽                .threadPoolSize(5)//线程池内加载的数量                .threadPriority(Thread.NORM_PRIORITY - 2)                .denyCacheImageMultipleSizesInMemory()                .memoryCache(new UsingFreqLimitedMemoryCache(2 * 1024 * 1024)) // You can pass your own memory cache implementation/你可以通过自己的内存缓存实现                .memoryCacheSize(2 * 1024 * 1024)                .tasksProcessingOrder(QueueProcessingType.LIFO)                .defaultDisplayImageOptions(DisplayImageOptions.createSimple())                .imageDownloader(new BaseImageDownloader(this, 5 * 1000, 30 * 1000)) // connectTimeout (5 s), readTimeout (30 s)超时时间                .writeDebugLogs() // Remove for release app                .build();//开始构建        //初始化ImageLoader        ImageLoader.getInstance().init(config);    }}

Json串的Bean类(JsonBean)

import java.util.List;/** * author:Created by ZhangPengFei on 2017/12/19. */public class JsonBean {    /**     * msg : 请求成功     * code : 0     * data : [{"list":[{"bargainPrice":22.9,"createtime":"2017-10-14T21:48:08","detailUrl":"https://item.m.jd.com/product/2542855.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t1930/284/2865629620/390243/e3ade9c4/56f0a08fNbd3a1235.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2137/336/2802996626/155915/e5e90d7a/56f0a09cN33e01bd0.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t1882/31/2772215910/389956/c8dbf370/56f0a0a2Na0c86ea6.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2620/166/2703833710/312660/531aa913/57709035N33857877.jpg!q70.jpg","num":1,"pid":24,"price":288,"pscid":2,"selected":0,"sellerid":1,"subhead":"三只松鼠零食特惠，专区满99减50，满199减100，火速抢购》","title":"三只松鼠 坚果炒货 零食奶油味 碧根果225g/袋"},{"bargainPrice":159,"createtime":"2017-10-14T21:49:15","detailUrl":"https://item.m.jd.com/product/5061723.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t8716/197/1271594444/173291/2f40bb4f/59b743bcN8509428e.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t8347/264/1286771527/92188/5cf5ec04/59b7420fN65378e9e.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7363/165/3000956253/190883/179a372/59b743bfNd0c79d93.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7399/112/2935531768/183594/b77c7d4a/59b7441aNc3d40133.jpg!q70.jpg","num":7,"pid":90,"price":1233,"pscid":112,"selected":0,"sellerid":1,"subhead":"针织针织闪闪闪亮你的眼","title":"维迩旎 2017秋冬新款长袖针织连衣裙韩版气质中长款名媛包臀A字裙 zx179709 黑色 XL"},{"bargainPrice":99,"createtime":"2017-10-14T21:38:26","detailUrl":"https://item.m.jd.com/product/4345173.html?utm#_source=androidapp&utm#_medium=appshare&utm#_campaign=t#_335139774&utm#_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t6037/35/2944615848/95178/6cd6cff0/594a3a10Na4ec7f39.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t6607/258/1025744923/75738/da120a2d/594a3a12Ne3e6bc56.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t6370/292/1057025420/64655/f87644e3/594a3a12N5b900606.jpg!q70.jpg","num":1,"pid":45,"price":2999,"pscid":39,"selected":0,"sellerid":1,"subhead":"高清双摄，就是清晰！2000+1600万高清摄像头，6GB大内存+高通骁龙835处理器，性能怪兽！","title":"一加手机5 (A5000) 6GB+64GB 月岩灰 全网通 双卡双待 移动联通电信4G手机"},{"bargainPrice":11800,"createtime":"2017-10-10T17:33:37","detailUrl":"https://item.m.jd.com/product/4338107.html?utm#_source=androidapp&utm#_medium=appshare&utm#_campaign=t#_335139774&utm#_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t6700/155/2098998076/156185/6cf95035/595dd5a5Nc3a7dab5.jpg!q70.jpg","num":1,"pid":57,"price":5199,"pscid":40,"selected":0,"sellerid":1,"subhead":"【i5 MX150 2G显存】全高清窄边框 8G内存 256固态硬盘 支持指纹识别 预装WIN10系统","title":"小米(MI)Air 13.3英寸全金属轻薄笔记本(i5-7200U 8G 256G PCle SSD MX150 2G独显 FHD 指纹识别 Win10）银\r\n"}],"sellerName":"商家1","sellerid":"1"},{"list":[{"bargainPrice":159,"createtime":"2017-10-14T21:49:15","detailUrl":"https://item.m.jd.com/product/5061723.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t8716/197/1271594444/173291/2f40bb4f/59b743bcN8509428e.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t8347/264/1286771527/92188/5cf5ec04/59b7420fN65378e9e.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7363/165/3000956253/190883/179a372/59b743bfNd0c79d93.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7399/112/2935531768/183594/b77c7d4a/59b7441aNc3d40133.jpg!q70.jpg","num":1,"pid":91,"price":1344,"pscid":112,"selected":0,"sellerid":2,"subhead":"针织针织闪闪闪亮你的眼","title":"维迩旎 2017秋冬新款长袖针织连衣裙韩版气质中长款名媛包臀A字裙 zx179709 黑色 XL"},{"bargainPrice":11800,"createtime":"2017-10-14T21:38:26","detailUrl":"https://item.m.jd.com/product/5025518.html?utm#_source=androidapp&utm#_medium=appshare&utm#_campaign=t#_335139774&utm#_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t8830/106/1760940277/195595/5cf9412f/59bf2ef5N5ab7dc16.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5428/70/1520969931/274676/b644dd0d/591128e7Nd2f70da0.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5566/365/1519564203/36911/620c750c/591128eaN54ac3363.jpg!q70.jpg","num":1,"pid":58,"price":6399,"pscid":40,"selected":0,"sellerid":2,"subhead":"升级4G大显存！Nvme协议Pcie SSD,速度快人一步】GTX1050Ti就选拯救者！专业游戏键盘&新模具全新设计！","title":"联想(Lenovo)拯救者R720 15.6英寸游戏笔记本电脑(i5-7300HQ 8G 1T+128G SSD GTX1050Ti 4G IPS 黑)"}],"sellerName":"商家2","sellerid":"2"}]     */    private String msg;    private String code;    private List data;    public String getMsg() {        return msg;    }    public void setMsg(String msg) {        this.msg = msg;    }    public String getCode() {        return code;    }    public void setCode(String code) {        this.code = code;    }    public List getData() {        return data;    }    public void setData(List data) {        this.data = data;    }    public static class DataBean {        public boolean isChecked() {            return checked;        }        public void setChecked(boolean checked) {            this.checked = checked;        }        /**         * list : [{"bargainPrice":22.9,"createtime":"2017-10-14T21:48:08","detailUrl":"https://item.m.jd.com/product/2542855.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t1930/284/2865629620/390243/e3ade9c4/56f0a08fNbd3a1235.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2137/336/2802996626/155915/e5e90d7a/56f0a09cN33e01bd0.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t1882/31/2772215910/389956/c8dbf370/56f0a0a2Na0c86ea6.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2620/166/2703833710/312660/531aa913/57709035N33857877.jpg!q70.jpg","num":1,"pid":24,"price":288,"pscid":2,"selected":0,"sellerid":1,"subhead":"三只松鼠零食特惠，专区满99减50，满199减100，火速抢购》","title":"三只松鼠 坚果炒货 零食奶油味 碧根果225g/袋"},{"bargainPrice":159,"createtime":"2017-10-14T21:49:15","detailUrl":"https://item.m.jd.com/product/5061723.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t8716/197/1271594444/173291/2f40bb4f/59b743bcN8509428e.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t8347/264/1286771527/92188/5cf5ec04/59b7420fN65378e9e.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7363/165/3000956253/190883/179a372/59b743bfNd0c79d93.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7399/112/2935531768/183594/b77c7d4a/59b7441aNc3d40133.jpg!q70.jpg","num":7,"pid":90,"price":1233,"pscid":112,"selected":0,"sellerid":1,"subhead":"针织针织闪闪闪亮你的眼","title":"维迩旎 2017秋冬新款长袖针织连衣裙韩版气质中长款名媛包臀A字裙 zx179709 黑色 XL"},{"bargainPrice":99,"createtime":"2017-10-14T21:38:26","detailUrl":"https://item.m.jd.com/product/4345173.html?utm#_source=androidapp&utm#_medium=appshare&utm#_campaign=t#_335139774&utm#_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t6037/35/2944615848/95178/6cd6cff0/594a3a10Na4ec7f39.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t6607/258/1025744923/75738/da120a2d/594a3a12Ne3e6bc56.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t6370/292/1057025420/64655/f87644e3/594a3a12N5b900606.jpg!q70.jpg","num":1,"pid":45,"price":2999,"pscid":39,"selected":0,"sellerid":1,"subhead":"高清双摄，就是清晰！2000+1600万高清摄像头，6GB大内存+高通骁龙835处理器，性能怪兽！","title":"一加手机5 (A5000) 6GB+64GB 月岩灰 全网通 双卡双待 移动联通电信4G手机"},{"bargainPrice":11800,"createtime":"2017-10-10T17:33:37","detailUrl":"https://item.m.jd.com/product/4338107.html?utm#_source=androidapp&utm#_medium=appshare&utm#_campaign=t#_335139774&utm#_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t6700/155/2098998076/156185/6cf95035/595dd5a5Nc3a7dab5.jpg!q70.jpg","num":1,"pid":57,"price":5199,"pscid":40,"selected":0,"sellerid":1,"subhead":"【i5 MX150 2G显存】全高清窄边框 8G内存 256固态硬盘 支持指纹识别 预装WIN10系统","title":"小米(MI)Air 13.3英寸全金属轻薄笔记本(i5-7200U 8G 256G PCle SSD MX150 2G独显 FHD 指纹识别 Win10）银\r\n"}]         * sellerName : 商家1         * sellerid : 1         */        private boolean checked;        private String sellerName;        private String sellerid;        private List list;        public String getSellerName() {            return sellerName;        }        public void setSellerName(String sellerName) {            this.sellerName = sellerName;        }        public String getSellerid() {            return sellerid;        }        public void setSellerid(String sellerid) {            this.sellerid = sellerid;        }        public List getList() {            return list;        }        public void setList(List list) {            this.list = list;        }        public static class ListBean {            public boolean isChecked() {                return checked;            }            public void setChecked(boolean checked) {                this.checked = checked;            }            /**             * bargainPrice : 22.9             * createtime : 2017-10-14T21:48:08             * detailUrl : https://item.m.jd.com/product/2542855.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends             * images : https://m.360buyimg.com/n0/jfs/t1930/284/2865629620/390243/e3ade9c4/56f0a08fNbd3a1235.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2137/336/2802996626/155915/e5e90d7a/56f0a09cN33e01bd0.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t1882/31/2772215910/389956/c8dbf370/56f0a0a2Na0c86ea6.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2620/166/2703833710/312660/531aa913/57709035N33857877.jpg!q70.jpg             * num : 1             * pid : 24             * price : 288.0             * pscid : 2             * selected : 0             * sellerid : 1             * subhead : 三只松鼠零食特惠，专区满99减50，满199减100，火速抢购》             * title : 三只松鼠 坚果炒货 零食奶油味 碧根果225g/袋             */            private boolean checked;            private double bargainPrice;            private String createtime;            private String detailUrl;            private String images;            private int num;            private int pid;            private double price;            private int pscid;            private int selected;            private int sellerid;            private String subhead;            private String title;            public double getBargainPrice() {                return bargainPrice;            }            public void setBargainPrice(double bargainPrice) {                this.bargainPrice = bargainPrice;            }            public String getCreatetime() {                return createtime;            }            public void setCreatetime(String createtime) {                this.createtime = createtime;            }            public String getDetailUrl() {                return detailUrl;            }            public void setDetailUrl(String detailUrl) {                this.detailUrl = detailUrl;            }            public String getImages() {                return images;            }            public void setImages(String images) {                this.images = images;            }            public int getNum() {                return num;            }            public void setNum(int num) {                this.num = num;            }            public int getPid() {                return pid;            }            public void setPid(int pid) {                this.pid = pid;            }            public double getPrice() {                return price;            }            public void setPrice(double price) {                this.price = price;            }            public int getPscid() {                return pscid;            }            public void setPscid(int pscid) {                this.pscid = pscid;            }            public int getSelected() {                return selected;            }            public void setSelected(int selected) {                this.selected = selected;            }            public int getSellerid() {                return sellerid;            }            public void setSellerid(int sellerid) {                this.sellerid = sellerid;            }            public String getSubhead() {                return subhead;            }            public void setSubhead(String subhead) {                this.subhead = subhead;            }            public String getTitle() {                return title;            }            public void setTitle(String title) {                this.title = title;            }        }    }}

主布局(MainActivity)

import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.CheckBox;import android.widget.ExpandableListView;import android.widget.TextView;import org.greenrobot.eventbus.EventBus;import org.greenrobot.eventbus.Subscribe;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity implements IShopCarPresenter {    private ExpandableListView ex;    private CheckBox selectAll;    private TextView price;    private TextView count;    private ShopCarPresenter shopCarPresenter;    private int uid = 3384;    private List groupList = new ArrayList<>();    private List> childList = new ArrayList<>();    private MyExAdapter myAdapter;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();//初始化视图        /**         * 用于传控件,         * 需要导入依赖才可以进行传送         */        EventBus.getDefault().register(this);        //全选/全不选        selectAll.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                //设置全选                myAdapter.changeAllListCbState(selectAll.isChecked());            }        });    }    //每次进这个页面都要甩你    @Override    protected void onResume() {        super.onResume();        initData();//初始化数据    }    //初始化数据    private void initData() {        //实例化P层        shopCarPresenter = new ShopCarPresenter(this);        shopCarPresenter.receive(uid + "");    }    //初始化集合    private void initView() {        ex = (ExpandableListView) findViewById(R.id.ex);//二级列表        selectAll = (CheckBox) findViewById(R.id.selectAll);//全选按钮        price = (TextView) findViewById(R.id.price);//价格        count = (TextView) findViewById(R.id.count);//数量    }    @Override    public void onSuccess(List data) {        //清空一下多余的列表展示        groupList.clear();        childList.clear();        //将商家的数据加入到大集合grouList        groupList.addAll(data);        //将商家下商品的数据全部添加到小集合childList        for (int i = 0; i < data.size(); i++) {            List list = data.get(i).getList();            childList.add(list);        }        /**         * 配置适配器         * 将商家的大集合和商家下的商品小集合全部传到适配器         */        myAdapter = new MyExAdapter(MainActivity.this, groupList, childList);        ex.setAdapter(myAdapter);        //二级列表默认展开        for (int i = 0; i < data.size(); i++) {            ex.expandGroup(i);//二级列表自带的方法        }        //刷新一下适配器        myAdapter.notifyDataSetChanged();    }    @Override    public void onFailed() {    }    @Subscribe    public void onMessageEvent(MessageEvent event) {        selectAll.setChecked(event.isCheckd());    }    //计算总价和总数量    @Subscribe    public void onMessageEven(PriceAndCountEvent event) {        price.setText(event.getPrice() + ".00");        count.setText("(" + event.getCount() + ")");    }}

P层(ShopCarPresenter)

import java.util.List;/** * author:Created by ZhangPengFei on 2017/12/19. */public class ShopCarPresenter implements IShopCarModel {    private ShopCarModel shopCarModel;    private IShopCarPresenter iShopCarPresenter;    public ShopCarPresenter(IShopCarPresenter iShopCarPresenter) {        this.iShopCarPresenter = iShopCarPresenter;        shopCarModel = new ShopCarModel();    }    public void receive(String uid) {        shopCarModel.receive(uid,this);    }    @Override    public void onSuccess(List data) {        iShopCarPresenter.onSuccess(data);    }    @Override    public void onFailed() {        iShopCarPresenter.onFailed();    }}

M层(ShopCarModel)

import com.google.gson.Gson;import java.util.HashMap;import java.util.List;/** * author:Created by ZhangPengFei on 2017/12/19. */public class ShopCarModel {    public void receive(String uid, final IShopCarModel iShopCarModel) {        OKHttpUtils instance = OKHttpUtils.getInstance();        HashMap hashMap = new HashMap<>();        hashMap.put("uid",uid);        instance.doGet("http://120.27.23.105/product/getCarts", hashMap, new IOkHttpUtils() {            @Override            public void onSuccess(String str) {                if(str!=null){                    Gson gson = new Gson();                    JsonBean jsonBean = gson.fromJson(str, JsonBean.class);                    if(jsonBean!=null){                        List data = jsonBean.getData();                        iShopCarModel.onSuccess(data);                    }                }            }            @Override            public void onFailed(String message) {                iShopCarModel.onFailed();            }        });    }}

M层传值的接口(IShopCarModel)

import java.util.List;/** * author:Created by ZhangPengFei on 2017/12/19. */public interface IShopCarModel {    void onSuccess(List data);    void onFailed();}

P层传值的接口(IShopCarPresenter)

import java.util.List;/** * author:Created by ZhangPengFei on 2017/12/19. */public interface IShopCarPresenter {    void onSuccess(List data);    void onFailed();}

Event用于在适配器和Activity之间传送接收控件的适配器(MessageEvent)

/** * Created by HASEE on 2017/11/22. */public class MessageEvent {    private boolean checkd;    public boolean isCheckd(){        return checkd;    }    public void  setCheckd(boolean checkd){        this.checkd=checkd;    }}

计算选中数量和价格的适配器(PriceAndCountEvent)

/** * Created by HASEE on 2017/11/22. */public class PriceAndCountEvent {    private int price;    private int count;    private int to;    public int getPrice() {        return price;    }    public int getCount() {        return count;    }    public int getTo(){        return  to;    }    public void setPrice(int price) {        this.price = price;    }    public void setCount(int count) {        this.count = count;    }    public void setTo(int to) {        this.to = to;    }}

ExpandAbleListView二级列表的适配器(MyExAdapter)

import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseExpandableListAdapter;import android.widget.Button;import android.widget.CheckBox;import android.widget.ImageView;import android.widget.TextView;import com.nostra13.universalimageloader.core.ImageLoader;import org.greenrobot.eventbus.EventBus;import java.util.List;/** * author:Created by ZhangPengFei on 2017/12/19. */public class MyExAdapter extends BaseExpandableListAdapter {    private Context context;    private List groupList;    private List> childList;    public MyExAdapter(Context context, List groupList, List> childList) {        this.context = context;        this.groupList = groupList;        this.childList = childList;    }    @Override    public int getGroupCount() {        return groupList.size();    }    @Override    public int getChildrenCount(int i) {        return childList.get(i).size();    }    @Override    public Object getGroup(int i) {        return groupList.get(i);    }    @Override    public Object getChild(int i, int i1) {        return childList.get(i).get(i1);    }    @Override    public long getGroupId(int i) {        return i;    }    @Override    public long getChildId(int i, int i1) {        return i1;    }    @Override    public boolean hasStableIds() {        return false;    }    /**     * 装载一级列表数据     * 商家的全选框     * 商家名称     */    class ViewHolder {        CheckBox checkGroup;        TextView storeName;    }    @Override    public View getGroupView(final int i, boolean b, View view, ViewGroup viewGroup) {        final ViewHolder holder;        if (view == null) {            holder = new ViewHolder();            view = View.inflate(context, R.layout.layout_group, null);            holder.checkGroup = view.findViewById(R.id.checkGroup);            holder.storeName = view.findViewById(R.id.storeName);            view.setTag(holder);        } else {            holder = (ViewHolder) view.getTag();        }        holder.storeName.setText(groupList.get(i).getSellerName());        //设置以及列表的点击状态        holder.checkGroup.setChecked(groupList.get(i).isChecked());        //一级列表checkBox的点击事件        holder.checkGroup.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                //判断一级列表复选框的状态,设置为true或false                groupList.get(i).setChecked(holder.checkGroup.isChecked());                //改变二级checkBox的状态                changeChildState(i, holder.checkGroup.isChecked());                //算钱                EventBus.getDefault().post(computer());                //改变全选状态   isAllGroupCbSelect判断一级是否全部选中                changeAllState(isAllGroupSelect());                //必刷新                notifyDataSetChanged();            }        });        return view;    }    /**     * 装载数据     * 装载当前店铺下的     * 要展示的商品     */    class ViewHolder1 {        CheckBox checkChild;        ImageView img;        TextView title;        TextView price;        TextView lessen;        TextView count;        TextView add;        Button btnDelete;    }    @Override    public View getChildView(final int i, int i1, boolean b, View view, ViewGroup viewGroup) {        final JsonBean.DataBean.ListBean bean = childList.get(i).get(i1);        final ViewHolder1 holder1;        /**         * 优化,判断为空         */        if (view == null) {            holder1 = new ViewHolder1();            //获取视图            view = View.inflate(context, R.layout.layout_child, null);            /**             * 获取ID             */            holder1.checkChild = view.findViewById(R.id.checkChild);//选框            holder1.img = view.findViewById(R.id.img);//图片            holder1.title = view.findViewById(R.id.title);//标题            holder1.price = view.findViewById(R.id.price);//价格            holder1.lessen = view.findViewById(R.id.lessen);//减            holder1.count = view.findViewById(R.id.count);//数量            holder1.add = view.findViewById(R.id.add);//加            holder1.btnDelete = view.findViewById(R.id.btnDelete);//删除的按钮            view.setTag(holder1);        } else {            holder1 = (ViewHolder1) view.getTag();        }        ImageLoader.getInstance().displayImage(bean.getImages(), holder1.img);        holder1.title.setText(bean.getTitle());        holder1.price.setText(bean.getPrice() + "");        holder1.count.setText(bean.getNum() + "");        //设置二级列表checkbox的属性        holder1.checkChild.setChecked(childList.get(i).get(i1).isChecked());        //二级列表的点击事件        holder1.checkChild.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                //设置该条目中的checkbox属性值                bean.setChecked(holder1.checkChild.isChecked());                //计算价钱                PriceAndCountEvent priceAndCountEvent = computer();                EventBus.getDefault().post(priceAndCountEvent);                //判断当前checkbox是选中的状态                if (holder1.checkChild.isChecked()) {                    //如果全部选中(isAllChildCbSelected)                    if (isAllChildCbSelected(i)) {                        //改变一级列表的状态                        changeGroupState(i, true);                        //改变全选的状态                        changeAllState(isAllGroupSelect());                    }                } else {                    //如果没有全部选中,一级列表的checkbox为false不为选中                    changeGroupState(i, false);                    changeAllState(isAllGroupSelect());                }                notifyDataSetChanged();            }        });//加号        holder1.add.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                int num = bean.getNum();                //num为int类型所以要加空字符串                holder1.count.setText(++num + "");                bean.setNum(num);                //如果二级列表的checkbox为选中,计算价钱                if (holder1.checkChild.isChecked()) {                    PriceAndCountEvent priceAndCountEvent = computer();                    EventBus.getDefault().post(priceAndCountEvent);                }            }        });        //减号        holder1.lessen.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                int num = bean.getNum();                if (num == 1) {                    return;                }                holder1.count.setText(--num + "");                bean.setNum(num);                if (holder1.checkChild.isChecked()) {                    PriceAndCountEvent priceAndCountEvent = computer();                    EventBus.getDefault().post(priceAndCountEvent);                }            }        });        return view;    }    @Override    public boolean isChildSelectable(int i, int i1) {        return false;    }    //改变二级列表的checkBox的状态,如果一级选中,控制二级也选中    private void changeChildState(int i, boolean flag) {        List listBeen = childList.get(i);        for (int j = 0; j < listBeen.size(); j++) {            JsonBean.DataBean.ListBean listBean = listBeen.get(j);            listBean.setChecked(flag);        }    }    //判断一级列表是否全部选中    public boolean isAllGroupSelect() {        for (int i = 0; i < childList.size(); i++) {            JsonBean.DataBean dataBean = groupList.get(i);            if (!dataBean.isChecked()) {                return false;            }        }        return true;    }    //改变全选的状态    private void changeAllState(boolean flag) {        //导入的类        MessageEvent messageEvent = new MessageEvent();        messageEvent.setCheckd(flag);        EventBus.getDefault().post(messageEvent);    }    //改变列表的checkBox的状态    private void changeGroupState(int i,boolean flag){        JsonBean.DataBean dataBean = groupList.get(i);        dataBean.setChecked(flag);    }    //判断二级列表是否全部选中    private boolean isAllChildCbSelected(int i) {        List listBeen = childList.get(i);        for (int j = 0; j < listBeen.size(); j++) {            JsonBean.DataBean.ListBean listBean = listBeen.get(j);            if (!listBean.isChecked()) {                return false;            }        }        return true;    }    //设置全选,反选    public void changeAllListCbState(boolean flag) {        for (int i = 0; i < childList.size(); i++) {            changeGroupState(i, flag);            changeChildState(i, flag);        }        //算钱        EventBus.getDefault().post(computer());        notifyDataSetChanged();    }    //计算列表的价钱    private PriceAndCountEvent computer() {        int count = 0;        int price = 0;        int to = 0;        for (int i = 0; i < childList.size(); i++) {            List listBeen = childList.get(i);            for (int j = 0; j < listBeen.size(); j++) {                JsonBean.DataBean.ListBean listBean = listBeen.get(j);                if (listBean.isChecked()) {                    price += listBean.getNum() * listBean.getPrice();                    count += listBean.getNum();                    to += listBean.getNum();                }            }        }        PriceAndCountEvent priceAndCountEvent = new PriceAndCountEvent();        priceAndCountEvent.setCount(count);        priceAndCountEvent.setPrice(price);        priceAndCountEvent.setTo(to);        return priceAndCountEvent;    }}

如果JsonBean类里面没有isCheck的有参需要手动添加

//放入DateBean        private boolean checked;public boolean isChecked() {            return checked;        }        public void setChecked(boolean checked) {            this.checked = checked;        }//放入ListBean            private boolean checked;public boolean isChecked() {                return checked;            }            public void setChecked(boolean checked) {                this.checked = checked;            }

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