购物车和订单

最新推荐文章于 2022-11-01 23:18:49 发布

站在坟前跳鬼步

最新推荐文章于 2022-11-01 23:18:49 发布

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本文链接：https://blog.youkuaiyun.com/xieshuaikang/article/details/78857339

本文详细探讨了电商应用中购物车的实现，包括购物车类的设计，使用适配器技术进行数据展示，主布局的构建，以及自定义二级列表的实现。同时，重点讲解了复选框选中状态的管理，一级和二级列表布局的定制，数量增减功能的边框处理。此外，还介绍了后台处理层面，如封装的Bean类，P层接口和View的交互，以及Model类的设计和相关接口的定义。

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----购物车类-----

package com.example.administrator.gouwuche_20171219.view.activity;

import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.example.administrator.gouwuche_20171219.R;
import com.example.administrator.gouwuche_20171219.model.bean.CartBean;
import com.example.administrator.gouwuche_20171219.model.bean.CountPriceBean;
import com.example.administrator.gouwuche_20171219.presenter.CartPresenter;
import com.example.administrator.gouwuche_20171219.util.ApiUtil;
import com.example.administrator.gouwuche_20171219.view.adapter.CartAdapter;
import com.example.administrator.gouwuche_20171219.view.interfac.CartView;
import com.example.administrator.gouwuche_20171219.view.zidingyi_shitu.CartExpanableListview;
import com.nostra13.universalimageloader.utils.L;

public class CartActivity extends AppCompatActivity implements CartView{

    private CartExpanableListview expanable_listview;
    private CheckBox check_all;
    private TextView text_total;
    private TextView text_buy;
    private CartPresenter cartPresenter;
    private RelativeLayout relative_progress;
    private LinearLayout linear_layout;
    private CartBean cartBean;
    Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            if (msg.what==0){
                countPriceBean = (CountPriceBean) msg.obj;
                text_total.setText("合计:¥"+ countPriceBean.getPriceString());
                text_buy.setText("去结算("+ countPriceBean.getCount()+")");
            }

        }
    };
    private CartAdapter cartAdapter;
    private CountPriceBean countPriceBean;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_third);

        //二级列表
        expanable_listview = findViewById(R.id.expanable_listview);
        //复选框 全选按钮
        check_all = findViewById(R.id.check_all);
        //合计  价钱
        text_total = findViewById(R.id.text_total);
        //去结算 数量
        text_buy = findViewById(R.id.text_buy);

        relative_progress = findViewById(R.id.relative_progress);

        linear_layout = findViewById(R.id.linear_layout);
        //去掉默认的指示器
        expanable_listview.setGroupIndicator(null);
        //获取数据   关联p层
        cartPresenter = new CartPresenter(this);

        //复选框的点击事件
        check_all.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                cartAdapter.setAllChildState(check_all.isChecked());
            }
        });

        //点击去结算
        text_buy.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(CartActivity.this, JieSuanActivity.class);
                intent.putExtra("price",countPriceBean.getPriceString());
              startActivity(intent);
            }
        });
    }
    @Override
    protected void onResume() {
        super.onResume();
        relative_progress.setVisibility(View.VISIBLE);
        cartPresenter.getDataUrl(ApiUtil.selGouWuChe);
    }

    /**
     * 解决MVP内存泄漏
     */
    @Override
    protected void onDestroy() {
        super.onDestroy();
        //解除绑定
        if (cartPresenter!=null){
            cartPresenter.destroy();
        }
    }

    @Override
    public void success(final CartBean cartBean) {
        this.cartBean=cartBean;
        this.runOnUiThread(new Runnable() {
            @Override
            public void run() {

                relative_progress.setVisibility(View.GONE);
                if (cartBean!=null){
                    linear_layout.setVisibility(View.VISIBLE);
                    //1.根据组中子条目是否选中,,,决定该组是否选中...初始化一下每一组中isGroupCheck这个数据
                    for (int i=0;i<cartBean.getData().size();i++){
                         if (isAllChildInGroupSelected(i)){
                             cartBean.getData().get(i).setGroupChecked(true);
                         }
                    }
                    //2.根据每一个组是否选中的状态,,,初始化全选是否选中
                    check_all.setChecked(isAllGroupChecked());
                    //设置适配器
                    cartAdapter = new CartAdapter(CartActivity.this,cartBean,cartPresenter,handler);
                    expanable_listview.setAdapter(cartAdapter);

                    //展开
                    for (int i= 0;i<cartBean.getData().size();i++){
                        expanable_listview.expandGroup(i);
                    }
                    //3.根据子条目是否选中  初始化价格和数量
                    cartAdapter.sendPriceAndCount();
                }else {
                    //隐藏下面的全选.... 等
                    linear_layout.setVisibility(View.GONE);
                    //显示去逛逛,,,添加购物车
                    Toast.makeText(CartActivity.this,"购物车为空,去逛逛",Toast.LENGTH_SHORT).show();
                }
            }
        });


    }

    @Override
    public void failed(Exception e) {
        Toast.makeText(CartActivity.this,"数据出错",Toast.LENGTH_SHORT).show();
    }

private boolean isAllGroupChecked(){
        for (int i=0;i<cartBean.getData().size();i++){
            if (!cartBean.getData().get(i).isGroupChecked()){
                return false;
            }
        }
        return  true;
}

/**
 * 判断当前组里面所有的子条目是否选中
 * @param groupPosition
 * @return
 */
 private  boolean isAllChildInGroupSelected(int groupPosition){
     for (int i=0;i<cartBean.getData().get(groupPosition).getList().size();i++){
           if (cartBean.getData().get(groupPosition).getList().get(i).getSelected()==0){
               return  false;
           }
     }
     return true;
 }
}

-----适配器-----

package com.example.administrator.gouwuche_20171219.view.adapter;

import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.example.administrator.gouwuche_20171219.R;
import com.example.administrator.gouwuche_20171219.model.bean.CartBean;
import com.example.administrator.gouwuche_20171219.model.bean.CountPriceBean;
import com.example.administrator.gouwuche_20171219.presenter.CartPresenter;
import com.example.administrator.gouwuche_20171219.util.ApiUtil;
import com.example.administrator.gouwuche_20171219.util.OkHttp3Util;

import java.io.IOException;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;

/**
 * Created by Administrator on 2017/12/19.
 */

public class CartAdapter extends BaseExpandableListAdapter{

    private final Handler handler;
    private  CartPresenter cartPresenter;
    Context context;
    CartBean cartBean;
    private int size;
    private int childI;
    private int allSize;
    private int index;

    public CartAdapter(Context context, CartBean cartBean, CartPresenter cartPresenter, Handler handler) {
        this.context = context;
        this.cartBean = cartBean;
        this.cartPresenter=cartPresenter;
        this.handler=handler;
    }

    @Override
    public int getGroupCount() {
        return cartBean.getData().size();
    }

    @Override
    public int getChildrenCount(int i) {
        return cartBean.getData().get(i).getList().size();
    }

    @Override
    public Object getGroup(int i) {
        return cartBean.getData().get(i);
    }

    @Override
    public Object getChild(int i, int i1) {
        return cartBean.getData().get(i).getList().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 true;
    }

    @Override
    public View getGroupView(int i, boolean b, View view, ViewGroup viewGroup) {
        final GroupHolder groupHolder;
        if (view==null){
            groupHolder = new GroupHolder();
           view=View.inflate(context, R.layout.group_item_layout,null);
           //复选框 一级列表
             groupHolder.checkBox=view.findViewById(R.id.check_group);
             //商家名称
             groupHolder.textView=view.findViewById(R.id.text_group);
             view.setTag(groupHolder);
        }else {
            groupHolder = (GroupHolder) view.getTag();
        }
        final CartBean.DataBean dataBean = cartBean.getData().get(i);
        groupHolder.textView.setText(dataBean.getSellerName());
        groupHolder.checkBox.setChecked(dataBean.isGroupChecked());
        groupHolder.checkBox.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                size = dataBean.getList().size();
                childI = 0;
                updateAllInGroup(groupHolder.checkBox.isChecked(),dataBean);
            }
        });
        return view;
    }

    private void updateAllInGroup(final boolean checked, final CartBean.DataBean dataBean) {
        CartBean.DataBean.ListBean listBean = dataBean.getList().get(childI);
        Map<String, String> map=new HashMap<>();
        map.put("uid","3690");
        map.put("sellerid", String.valueOf(listBean.getSellerid()));
        map.put("pid", String.valueOf(listBean.getPid()));
        map.put("selected", String.valueOf(checked ? 1:0));
        map.put("num", String.valueOf(listBean.getNum()));
        OkHttp3Util.doPost(ApiUtil.updateCartUrl, map, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (response.isSuccessful()){
                    childI=childI+1;
                    if (childI<size){
                        updateAllInGroup(checked,dataBean);
                    }else {
                        //所有的条目已经更新完成....再次请求查询购物车的数据
                        cartPresenter.getDataUrl(ApiUtil.selGouWuChe);
                    }
                }
            }
        });
    }

    @Override
    public View getChildView(int i, int i1, boolean b, View view, ViewGroup viewGroup) {
        ChildHolder childHolder;
        if(view==null){
             childHolder = new ChildHolder();
            view=View.inflate(context,R.layout.child_item_layout,null);
            childHolder.check_child=view.findViewById(R.id.check_child);
            childHolder.image_good=view.findViewById(R.id.image_good);
            childHolder.text_title=view.findViewById(R.id.text_title);
            childHolder.text_price=view.findViewById(R.id.text_price);
            childHolder.text_jian=view.findViewById(R.id.text_jian);
            childHolder.text_num=view.findViewById(R.id.text_num);
            childHolder.text_add=view.findViewById(R.id.text_add);
            childHolder.text_delete=view.findViewById(R.id.text_delete);
            view.setTag(childHolder);
        }else {
            childHolder = (ChildHolder) view.getTag();
        }
        //赋值
        final CartBean.DataBean.ListBean listBean = cartBean.getData().get(i).getList().get(i1);
        childHolder.text_num.setText(listBean.getNum()+"");//......注意
        childHolder.text_price.setText("¥"+listBean.getBargainPrice());
        childHolder.text_title.setText(listBean.getTitle());
        //listBean.getSelected().....0false,,,1true
        //设置checkBox选中状态
        childHolder.check_child.setChecked(listBean.getSelected()==0? false:true);
        Glide.with(context).load(listBean.getImages().split("\\|")[0]).into(childHolder.image_good);
        //点击事件
        childHolder.check_child.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                updateChildChecked(listBean);
            }
        });
        //加号
        childHolder.text_add.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //请求更新的接口
                updateChildNum(listBean,true);
            }
        });
        //减号
        childHolder.text_jian.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (listBean.getNum()==1){
                    return;
                }
                //更新数量,,,减
                updateChildNum(listBean,false);
            }
        });
        return view;
    }

    private void updateChildNum(CartBean.DataBean.ListBean listBean, boolean isAdded) {
        Map<String, String> map=new HashMap<>();
        map.put("uid","3690");
        map.put("sellerid", String.valueOf(listBean.getSellerid()));
        map.put("pid", String.valueOf(listBean.getPid()));
        map.put("selected", String.valueOf(listBean.getSelected()));

        if (isAdded){
            map.put("num", String.valueOf(listBean.getNum() + 1));
        }else {
            map.put("num", String.valueOf(listBean.getNum() - 1));
        }
        OkHttp3Util.doPost(ApiUtil.updateCartUrl, map, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
             if (response.isSuccessful()){
                 cartPresenter.getDataUrl(ApiUtil.selGouWuChe);
             }
            }
        });
    }

    private void updateChildChecked(CartBean.DataBean.ListBean listBean) {
        Map<String, String> map=new HashMap<>();
        map.put("uid","3690");
        map.put("sellerid", String.valueOf(listBean.getSellerid()));
        map.put("pid", String.valueOf(listBean.getPid()));
        map.put("selected", String.valueOf(listBean.getSelected() == 0? 1:0));
        map.put("num", String.valueOf(listBean.getNum()));
        OkHttp3Util.doPost(ApiUtil.updateCartUrl, map, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                //更新成功之后...网络上的数据发生了改变...再次请求购物车的接口进行数据的展示
                 if (response.isSuccessful()){
                   cartPresenter.getDataUrl(ApiUtil.selGouWuChe);
                 }
            }
        });
    }

    /**
     * 计算价格和数量 并发送显示
     */
    public void sendPriceAndCount() {

        double price = 0;
        int count = 0;

        //通过判断二级列表是否勾选,,,,计算价格数量
        for (int i=0;i<cartBean.getData().size();i++){

            for (int j = 0;j<cartBean.getData().get(i).getList().size();j++){
                if (cartBean.getData().get(i).getList().get(j).getSelected() == 1){
                    //价格是打折的价格...........
                    price += cartBean.getData().get(i).getList().get(j).getNum() * cartBean.getData().get(i).getList().get(j).getBargainPrice();
                    count += cartBean.getData().get(i).getList().get(j).getNum();
                }
            }
        }
        //精准的保留double的两位小数
        DecimalFormat decimalFormat = new DecimalFormat("#.00");
        String priceString = decimalFormat.format(price);


        CountPriceBean countPriceBean = new CountPriceBean(priceString, count);
        //发送...显示
        Message msg = Message.obtain();
        msg.what = 0;
        msg.obj = countPriceBean;

        handler.sendMessage(msg);

    }
    /**
     * 根据全选的状态,,,,跟新每一个子条目的状态,,,全部更新完成后,查询购物车的数据进行展示
     * @param checked
     */
    public void setAllChildState(boolean checked) {

        //创建一个集合 装所有的子条目
        List<CartBean.DataBean.ListBean> allList = new ArrayList<>();

        for (int i=0;i<cartBean.getData().size();i++){
            for (int j=0;j<cartBean.getData().get(i).getList().size();j++){
                allList.add(cartBean.getData().get(i).getList().get(j));
            }
        }

//        relative_progress.setVisibility(View.VISIBLE);

        allSize = allList.size();
        index = 0;
        //通过 递归 更新所有子条目的选中
        updateAllChild(allList,checked);

    }

    private void updateAllChild(final List<CartBean.DataBean.ListBean> allList, final boolean checked) {
        CartBean.DataBean.ListBean listBean = allList.get(index);//0
        //跟新的操作
        //?uid=71&sellerid=1&pid=1&selected=0&num=10
        Map<String, String> map = new HashMap<>();
        map.put("uid","3690");
        map.put("sellerid", String.valueOf(listBean.getSellerid()));
        map.put("pid", String.valueOf(listBean.getPid()));
        map.put("selected", String.valueOf(checked ? 1:0));
        map.put("num", String.valueOf(listBean.getNum()));
        OkHttp3Util.doPost(ApiUtil.updateCartUrl, map, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                if (response.isSuccessful()){
                    index = index +1;//0,1,2......3
                    if (index < allSize){

                        updateAllChild(allList,checked);
                    }else {
                        //查询购物车
                        cartPresenter.getDataUrl(ApiUtil.selGouWuChe);
                    }
                }
            }
        });
    }

    @Override
    public boolean isChildSelectable(int i, int i1) {
        return true;
    }

    class GroupHolder{
       CheckBox checkBox;
       TextView textView;
    }
    class ChildHolder{
        CheckBox check_child;
        ImageView image_good;
        TextView text_title;
        TextView text_price;
        TextView text_jian;
        TextView text_num;
        TextView text_add;
        TextView text_delete;
    }
}

-----主布局-----

<?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"
    tools:context="com.example.administrator.gouwuche_20171219.view.activity.CartActivity">


    <ScrollView
        android:layout_above="@+id/linear_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <!--购物车的二级列表-->
            <com.example.administrator.gouwuche_20171219.view.zidingyi_shitu.CartExpanableListview
                android:id="@+id/expanable_listview"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

            </com.example.administrator.gouwuche_20171219.view.zidingyi_shitu.CartExpanableListview>

        </LinearLayout>
    </ScrollView>

    <RelativeLayout
        android:visibility="gone"
        android:id="@+id/relative_progress"
        android:layout_above="@+id/linear_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <ProgressBar
            android:layout_centerInParent="true"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

    </RelativeLayout>

    <LinearLayout
        android:id="@+id/linear_layout"
        android:layout_alignParentBottom="true"
        android:gravity="center_vertical"
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="50dp">
        <CheckBox
            android:layout_marginLeft="10dp"
            android:button="@null"
            android:background="@drawable/check_box_selector"
            android:id="@+id/check_all"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
        <TextView
            android:id="@+id/text_total"
            android:text="合计:¥0.00"
            android:layout_weight="2"
            android:layout_width="0dp"
            android:layout_height="wrap_content" />
        <TextView
            android:text="去结算(0)"
            android:background="#ff0000"
            android:textColor="#ffffff"
            android:gravity="center"
            android:id="@+id/text_buy"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="match_parent" />

    </LinearLayout>

</RelativeLayout>

-----自定义二级列表------

package com.example.administrator.gouwuche_20171219.view.zidingyi_shitu;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.ExpandableListView;

/**
 * Created by Administrator on 2017/12/19.
 */

public class CartExpanableListview extends ExpandableListView {
    public CartExpanableListview(Context context) {
        super(context);
    }

    public CartExpanableListview(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CartExpanableListview(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
                MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, expandSpec);
    }
}

---复选框的图片是否选中模式-----

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true" android:drawable="@drawable/shopping_cart_checked"/>
    <item android:state_checked="false" android:drawable="@drawable/shopping_cart_none_check"/>
    <item android:drawable="@drawable/shopping_cart_none_check"/>
</selector>

-----一级列表布局------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:orientation="horizontal"
    android:padding="10dp"
    android:layout_height="match_parent">

    <CheckBox
        android:button="@null"
        android:background="@drawable/check_box_selector"
        android:id="@+id/check_group"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <TextView
        android:layout_marginLeft="10dp"
        android:text="京东自营"
        android:id="@+id/text_group"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

-----二级列表布局------

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:padding="10dp"
    android:layout_height="match_parent">

    <RelativeLayout
        android:id="@+id/rel"
        android:layout_toLeftOf="@+id/text_delete"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <CheckBox
            android:layout_centerVertical="true"
            android:id="@+id/check_child"
            android:button="@null"
            android:background="@drawable/check_box_selector"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <ImageView
            android:id="@+id/image_good"
            android:layout_centerVertical="true"
            android:layout_toRightOf="@+id/check_child"
            android:layout_marginLeft="10dp"
            android:layout_width="80dp"
            android:layout_height="80dp" />

        <TextView
            android:id="@+id/text_title"
            android:layout_toRightOf="@+id/image_good"
            android:layout_marginLeft="10dp"
            android:layout_alignTop="@+id/image_good"
            android:maxLines="2"
            android:minLines="2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <TextView
            android:id="@+id/text_price"
            android:layout_toRightOf="@+id/image_good"
            android:layout_marginLeft="10dp"
            android:layout_alignBottom="@+id/image_good"
            android:text="¥99.99"
            android:textColor="#ff0000"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <LinearLayout
            android:layout_alignParentRight="true"
            android:layout_alignBottom="@+id/image_good"
            android:orientation="horizontal"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/text_jian"
                android:text="一"
                android:padding="5dp"
                android:background="@drawable/bian_kuang_line"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

            <TextView
                android:gravity="center"
                android:id="@+id/text_num"
                android:paddingLeft="10dp"
                android:paddingRight="10dp"
                android:background="@drawable/bian_kuang_line"
                android:layout_width="wrap_content"
                android:layout_height="match_parent" />

            <TextView
                android:id="@+id/text_add"
                android:text="十"
                android:padding="5dp"
                android:background="@drawable/bian_kuang_line"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

        </LinearLayout>

    </RelativeLayout>

    <TextView
        android:layout_marginLeft="3dp"
        android:layout_alignParentRight="true"
        android:layout_alignTop="@+id/rel"
        android:layout_alignBottom="@+id/rel"
        android:id="@+id/text_delete"
        android:background="#ff0000"
        android:text="删除"
        android:gravity="center"
        android:textColor="#ffffff"
        android:layout_width="50dp"
        android:layout_height="match_parent" />
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:padding="10dp"
    android:layout_height="match_parent">

    <RelativeLayout
        android:id="@+id/rel"
        android:layout_toLeftOf="@+id/text_delete"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <CheckBox
            android:layout_centerVertical="true"
            android:id="@+id/check_child"
            android:button="@null"
            android:background="@drawable/check_box_selector"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <ImageView
            android:id="@+id/image_good"
            android:layout_centerVertical="true"
            android:layout_toRightOf="@+id/check_child"
            android:layout_marginLeft="10dp"
            android:layout_width="80dp"
            android:layout_height="80dp" />

        <TextView
            android:id="@+id/text_title"
            android:layout_toRightOf="@+id/image_good"
            android:layout_marginLeft="10dp"
            android:layout_alignTop="@+id/image_good"
            android:maxLines="2"
            android:minLines="2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <TextView
            android:id="@+id/text_price"
            android:layout_toRightOf="@+id/image_good"
            android:layout_marginLeft="10dp"
            android:layout_alignBottom="@+id/image_good"
            android:text="¥99.99"
            android:textColor="#ff0000"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <LinearLayout
            android:layout_alignParentRight="true"
            android:layout_alignBottom="@+id/image_good"
            android:orientation="horizontal"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/text_jian"
                android:text="一"
                android:padding="5dp"
                android:background="@drawable/bian_kuang_line"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

            <TextView
                android:gravity="center"
                android:id="@+id/text_num"
                android:paddingLeft="10dp"
                android:paddingRight="10dp"
                android:background="@drawable/bian_kuang_line"
                android:layout_width="wrap_content"
                android:layout_height="match_parent" />

            <TextView
                android:id="@+id/text_add"
                android:text="十"
                android:padding="5dp"
                android:background="@drawable/bian_kuang_line"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

        </LinearLayout>

    </RelativeLayout>

    <TextView
        android:layout_marginLeft="3dp"
        android:layout_alignParentRight="true"
        android:layout_alignTop="@+id/rel"
        android:layout_alignBottom="@+id/rel"
        android:id="@+id/text_delete"
        android:background="#ff0000"
        android:text="删除"
        android:gravity="center"
        android:textColor="#ffffff"
        android:layout_width="50dp"
        android:layout_height="match_parent" />
</RelativeLayout>

-----数量增加和减少的边框-----

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#ffffff" />

    <stroke
        android:width="0.1dp"
        android:color="#000000" />

</shape>

-----封装bean类------

package com.example.administrator.gouwuche_20171219.model.bean;

import java.util.List;

/**
 * Created by Administrator on 2017/12/19.
 */

public class CartBean {

    /**
     * msg : 请求成功
     * code : 0
     * data : [{"list":[{"bargainPrice":399,"createtime":"2017-10-02T15:20:02","detailUrl":"https://item.m.jd.com/product/1439822107.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t5887/201/859509257/69994/6bde9bf6/59224c24Ne854e14c.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg","num":7,"pid":81,"price":699,"pscid":85,"selected":0,"sellerid":2,"subhead":"满2件，总价打6.50折","title":"Gap男装 休闲舒适简约水洗五袋直筒长裤紧身牛仔裤941825 深灰色 33/32(175/84A)"}],"sellerName":"商家2","sellerid":"2"},{"list":[{"bargainPrice":399,"createtime":"2017-10-14T21:38:26","detailUrl":"https://item.m.jd.com/product/1439822107.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t5887/201/859509257/69994/6bde9bf6/59224c24Ne854e14c.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg","num":1,"pid":83,"price":444,"pscid":85,"selected":0,"sellerid":4,"subhead":"满2件，总价打6.50折","title":"Gap男装 休闲舒适简约水洗五袋直筒长裤紧身牛仔裤941825 深灰色 33/32(175/84A)"}],"sellerName":"商家4","sellerid":"4"},{"list":[{"bargainPrice":399,"createtime":"2017-10-03T23:53:28","detailUrl":"https://item.m.jd.com/product/1439822107.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t5887/201/859509257/69994/6bde9bf6/59224c24Ne854e14c.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg","num":1,"pid":87,"price":888,"pscid":85,"selected":0,"sellerid":8,"subhead":"满2件，总价打6.50折","title":"Gap男装 休闲舒适简约水洗五袋直筒长裤紧身牛仔裤941825 深灰色 33/32(175/84A)"}],"sellerName":"商家8","sellerid":"8"},{"list":[{"bargainPrice":111.99,"createtime":"2017-10-14T21:39:05","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","num":7,"pid":1,"price":118,"pscid":1,"selected":0,"sellerid":17,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村 稻香村中秋节月饼 老北京月饼礼盒655g"}],"sellerName":"商家17","sellerid":"17"},{"list":[{"bargainPrice":111.99,"createtime":"2017-10-14T21:39:05","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","num":1,"pid":2,"price":299,"pscid":1,"selected":0,"sellerid":18,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村 稻香村中秋节月饼 老北京月饼礼盒655g"}],"sellerName":"商家18","sellerid":"18"},{"list":[{"bargainPrice":111.99,"createtime":"2017-10-14T21:39:05","detailUrl":"https://item.m.jd.com/product/4719303.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t9004/210/1160833155/647627/ad6be059/59b4f4e1N9a2b1532.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7504/338/63721388/491286/f5957f53/598e95f1N7f2adb87.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t7441/10/64242474/419246/adb30a7d/598e95fbNd989ba0a.jpg!q70.jpg","num":1,"pid":5,"price":88.99,"pscid":1,"selected":0,"sellerid":21,"subhead":"每个中秋都不能简单，无论身在何处，你总需要一块饼让生活更圆满，京东月饼让爱更圆满京东自营，闪电配送，更多惊喜，快用手指戳一下","title":"北京稻香村 稻香村中秋节月饼 老北京月饼礼盒655g"}],"sellerName":"商家21","sellerid":"21"}]
     */

    private String msg;
    private String code;
    private List<DataBean> 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<DataBean> getData() {
        return data;
    }

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

    public static class DataBean {

        public boolean isGroupChecked() {
            return isGroupChecked;
        }

        public void setGroupChecked(boolean groupChecked) {
            isGroupChecked = groupChecked;
        }

        /**
         * list : [{"bargainPrice":399,"createtime":"2017-10-02T15:20:02","detailUrl":"https://item.m.jd.com/product/1439822107.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t5887/201/859509257/69994/6bde9bf6/59224c24Ne854e14c.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg","num":7,"pid":81,"price":699,"pscid":85,"selected":0,"sellerid":2,"subhead":"满2件，总价打6.50折","title":"Gap男装 休闲舒适简约水洗五袋直筒长裤紧身牛仔裤941825 深灰色 33/32(175/84A)"}]
         * sellerName : 商家2
         * sellerid : 2
         */
        private boolean isGroupChecked; //一级列表是否选中
        private String sellerName;
        private String sellerid;
        private List<ListBean> 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<ListBean> getList() {
            return list;
        }

        public void setList(List<ListBean> list) {
            this.list = list;
        }

        public static class ListBean {
            /**
             * bargainPrice : 399.0
             * createtime : 2017-10-02T15:20:02
             * detailUrl : https://item.m.jd.com/product/1439822107.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends
             * images : https://m.360buyimg.com/n0/jfs/t5887/201/859509257/69994/6bde9bf6/59224c24Ne854e14c.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t5641/233/853609022/57374/5c73d281/59224c24N3324d5f4.jpg!q70.jpg
             * num : 7
             * pid : 81
             * price : 699.0
             * pscid : 85
             * selected : 0
             * sellerid : 2
             * subhead : 满2件，总价打6.50折
             * title : Gap男装 休闲舒适简约水洗五袋直筒长裤紧身牛仔裤941825 深灰色 33/32(175/84A)
             */

            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;
            }
        }
    }
}

---P层类-----

package com.example.administrator.gouwuche_20171219.presenter;

import com.example.administrator.gouwuche_20171219.model.CartModel;
import com.example.administrator.gouwuche_20171219.model.bean.CartBean;
import com.example.administrator.gouwuche_20171219.presenter.interfac.CartP;
import com.example.administrator.gouwuche_20171219.view.activity.CartActivity;
import com.example.administrator.gouwuche_20171219.view.interfac.CartView;

/**
 * Created by Administrator on 2017/12/19.
 */

public class CartPresenter implements CartP{

    private  CartModel cartModel;
    CartView cartView;

    public CartPresenter(CartView cartView) {
        this.cartView = cartView;
        cartModel = new CartModel(this);
    }

    public void getDataUrl(String selGouWuChe) {
        cartModel.getDataUrlM(selGouWuChe);
    }

    @Override
    public void success(CartBean cartBean) {
        cartView.success(cartBean);
    }

    @Override
    public void failed(Exception e) {
        cartView.failed(e);
    }
  //销毁
    public void destroy() {
        if (cartView!=null){
            cartView=null;
        }
    }
}

-----P层接口和View-----

package com.example.administrator.gouwuche_20171219.presenter.interfac;

import com.example.administrator.gouwuche_20171219.model.bean.CartBean;
import com.example.administrator.gouwuche_20171219.model.bean.SecondBean;

/**
 * Created by Administrator on 2017/12/19.
 */

public interface CartP {
    public void success(CartBean cartBean);
    public void failed(Exception e);
}

----Model类-----

package com.example.administrator.gouwuche_20171219.model;

import com.example.administrator.gouwuche_20171219.model.bean.CartBean;
import com.example.administrator.gouwuche_20171219.presenter.CartPresenter;
import com.example.administrator.gouwuche_20171219.presenter.interfac.CartP;
import com.example.administrator.gouwuche_20171219.util.OkHttp3Util;
import com.google.gson.Gson;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;

/**
 * Created by Administrator on 2017/12/19.
 */

public class CartModel {
    CartP cartP;

    public CartModel(CartP cartP) {
        this.cartP = cartP;
    }

    public void getDataUrlM(String selGouWuChe) {
        OkHttp3Util.doGet(selGouWuChe, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                cartP.failed(e);
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                   if (response.isSuccessful()){
                       String string = response.body().string();
                       Gson gson = new Gson();
                       CartBean cartBean = gson.fromJson(string, CartBean.class);
                       cartP.success(cartBean);
                   }
            }
        });
    }
}

--接口---

package com.example.administrator.gouwuche_20171219.util;

/**
 * Created by Administrator on 2017/12/19.
 */

public class ApiUtil {
    //查询购物车
    public static String selGouWuChe="https://www.zhaoapi.cn/product/getCarts?uid=3690";
    //更新数据
    public static final String updateCartUrl = "https://www.zhaoapi.cn/product/updateCarts";
    //创建订单
    public static final String dingdan = "https://www.zhaoapi.cn/product/createOrder?uid=3690";
    //订单状态
    public static final String zhuangtai = "https://www.zhaoapi.cn/product/getOrders";
}