Android实现购物车功能

 更新时间:2021年04月22日 15:48:21   作者:jackeysun6032  
这篇文章主要为大家详细介绍了Android实现购物车功能的具体方法 ,文中示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们可以参考一下

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最近看了一些淘宝购物车的demo,于是也写了一个。

效果图如下:

主要代码如下:
actvity中的代码:

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public class ShoppingCartActivity extends BaseActivity {
 
  private List<Test> data;
  private ListView mListView;
  private ShoppingCartAdapter adapter;
 
  private RelativeLayout rlRefresh;
  private TextView tvRefresh;
  private ProgressBar barRefresh;
  private LinearLayout clear;
  private CheckBox checkBox_select_all;
  private CheckBox checkBox_add;
  private TextView integral_sum;
  private int sum = 0;
  private int[] sumIntegral;
  private Context context;
 
  @Override
  protected void onCreate(Bundle bundle) {
    // TODO Auto-generated method stub
    super.onCreate(bundle);
    setContentView(R.layout.activity_shopping_cart);
    initView();
  }
 
  private void initView() {
    context = this;
    showpage = 1;
    isPermitFlag = true;
    data = new ArrayList<Test>();
    // 测试数据
    data.add(new Test("id", "color", "type", "100"));
    data.add(new Test("id", "color", "type", "200"));
    data.add(new Test("id", "color", "type", "300"));
    data.add(new Test("id", "color", "type", "0"));
    data.add(new Test("id", "color", "type", "300"));
    data.add(new Test("id", "color", "type", "100"));
    data.add(new Test("id", "color", "type", "500"));
    data.add(new Test("id", "color", "type", "0"));
    data.add(new Test("id", "color", "type", "900"));
 
    adapter = new ShoppingCartAdapter(context, handler, data);
 
    sumIntegral = new int[data.size() + 1];
 
    checkBox_add = (CheckBox) findViewById(R.id.checkbox_add);
    integral_sum = (TextView) findViewById(R.id.integral_sum);
    clear = (LinearLayout) findViewById(R.id.clear);
    clear.setOnClickListener(new OnClickListener() {
 
      @Override
      public void onClick(View v) {
        data.clear();
        adapter.notifyDataSetChanged();
        integral_sum.setText(0 + "");
        checkBox_select_all.setChecked(false);
        checkBox_add.setClickable(false);
      }
    });
    checkBox_select_all = (CheckBox) findViewById(R.id.checkbox_select);
    checkBox_select_all.setOnClickListener(new OnClickListener() {
 
      @Override
      public void onClick(View v) {
 
        HashMap<Integer, Boolean> isSelected = ShoppingCartAdapter
            .getIsSelected();
        Iterator iterator = isSelected.entrySet().iterator();
        List<Boolean> array = new ArrayList<Boolean>();//列表中checkbox选中状态
        List<Integer> nums = new ArrayList<Integer>();//列表中商品数量
        while (iterator.hasNext()) {
          HashMap.Entry entry = (HashMap.Entry) iterator.next();
          Integer key = (Integer) entry.getKey();
          Boolean val = (Boolean) entry.getValue();
          array.add(val);
        }
        for (int i = 0; i < data.size(); i++) {
          int num = data.get(i).getNum();
          int integral = Integer.valueOf(data.get(i).getIntegral());
          nums.add(num);
        }
        if (checkBox_select_all.isChecked()) {
 
          for (int i = 0; i < data.size(); i++) {
            ShoppingCartAdapter.getIsSelected().put(i, true);
          }
          checkBox_add.setChecked(true);
          adapter.notifyDataSetChanged();
        } else {
          for (int i = 0; i < data.size(); i++) {
            ShoppingCartAdapter.getIsSelected().put(i, false);
          }
          checkBox_add.setChecked(false);
          adapter.notifyDataSetChanged();
          integral_sum.setText(0 + "");
        }
 
      }
    });
    mListView= (ListView) findViewById(R.id.finance_list);
    mListView.setAdapter(adapter);
    mListView.setOnItemClickListener(new OnItemClickListener() {
 
      @Override
      public void onItemClick(AdapterView<?> parent, View view,
          int position, long id) {
        Toast.makeText(context, position + "", Toast.LENGTH_LONG)
            .show();
 
        int pos = position - 1;
        ViewHolder viewHolder = (ViewHolder) view.getTag();
        int num = data.get(pos).getNum();
        if (num == 0) {
          Toast.makeText(context, "请选择商品数量", Toast.LENGTH_LONG)
              .show();
        } else {
          boolean cu = !ShoppingCartAdapter.getIsSelected().get(pos);
          ShoppingCartAdapter.getIsSelected().put(pos, cu);
          adapter.notifyDataSetChanged();
          //遍历获取列表中checkbox的选中状态
          HashMap<Integer, Boolean> isSelected = ShoppingCartAdapter
              .getIsSelected();
          Iterator iterator = isSelected.entrySet().iterator();
          List<Boolean> array = new ArrayList<Boolean>();
          while (iterator.hasNext()) {
            HashMap.Entry entry = (HashMap.Entry) iterator.next();
            Integer key = (Integer) entry.getKey();
            Boolean val = (Boolean) entry.getValue();
            array.add(val);
          }
          if (Test.isAllFalse(array)) {
            checkBox_select_all.setChecked(false);
            checkBox_add.setChecked(false);
          }
          if (Test.isAllTrue(array)) {
            checkBox_select_all.setChecked(true);
            checkBox_add.setChecked(true);
          }
          if (Test.isHaveOneFasle(array)) {
            checkBox_select_all.setChecked(false);
          }
          if (Test.isHaveOneTrue(array)) {
            checkBox_add.setChecked(true);
          }
        }
      }
    });
  }
 
  @SuppressLint("HandlerLeak")
  private Handler handler = new Handler(){
    @SuppressWarnings("unchecked")
    @Override
    public void handleMessage(Message msg) {
      super.handleMessage(msg);
      if(msg.what == 10){ //更改选中商品的总价格
        float price = (Float)msg.obj;
        if(price > 0){
          integral_sum.setText(price+"");
        }else{
          integral_sum.setText("0");
        }
      }
      else if(msg.what == 11){
        //列表选中状态
        List<Boolean> array = (List<Boolean>) msg.obj;
        if (Test.isAllFalse(array)) {
          checkBox_select_all.setChecked(false);
          checkBox_add.setChecked(false);
        }
        if (.isAllTrue(array)) {
          checkBox_select_all.setChecked(true);
          checkBox_add.setChecked(true);
        }
        if (Test.isHaveOneFasle(array)) {
          checkBox_select_all.setChecked(false);
        }
        if (Test.isHaveOneTrue(array)) {
          checkBox_add.setChecked(true);
        }
      }
    }
  };

actvity中XML的代码:

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<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:header=http://schemas.android.com/apk/res/com.sxc.test"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="@color/app_background"
  android:orientation="vertical" >
 
  <com.autoserve.core.widget.HeaderWidget
    android:id="@+id/header"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    header:text="我的购物车" />
 
  <LinearLayout
    android:id="@+id/layout1"
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:layout_below="@id/header"
    android:layout_gravity="center"
    android:layout_marginTop="20dp"
    android:background="@color/white"
    android:orientation="horizontal" >
 
    <LinearLayout
      android:layout_width="0dp"
      android:layout_height="match_parent"
      android:layout_marginLeft="10dp"
      android:layout_weight="1"
      android:gravity="center_vertical"
      android:orientation="horizontal" >
 
      <CheckBox
        android:id="@+id/checkbox_select"
        style="@style/CustomCheckboxTheme"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
 
      <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:text="全选"
        android:textColor="@color/gry_666666"
        android:textSize="@dimen/small_size" />
    </LinearLayout>
 
    <LinearLayout
      android:id="@+id/clear"
      android:layout_width="wrap_content"
      android:layout_height="match_parent"
      android:layout_marginRight="20dp"
      android:gravity="center_vertical|right"
      android:orientation="horizontal" >
 
      <CheckBox
        android:layout_width="12dp"
        android:layout_height="12dp"
        android:background="@drawable/clear" />
 
      <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="5dp"
        android:text="清空购物车"
        android:textColor="#b61d1d"
        android:textSize="@dimen/small_size" />
    </LinearLayout>
  </LinearLayout>
 
  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@id/layout1"
    android:layout_marginBottom="50dp"
    android:orientation="vertical" >
 
    <View
      android:layout_width="match_parent"
      android:layout_height="0.1dp"
      android:background="@color/divider_color" />
 
    <ListView
      android:id="@+id/finance_list"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:clickable="false"
      android:divider="@color/lucency" />
 
    <include
      layout="@layout/include_refresh"
      android:visibility="gone" />
  </LinearLayout>
 
  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="50dp"
    android:layout_alignParentBottom="true"
    android:orientation="horizontal" >
 
    <LinearLayout
      android:layout_width="0dp"
      android:layout_height="match_parent"
      android:layout_weight="2"
      android:background="@color/gry_999999"
      android:gravity="center_vertical"
      android:orientation="horizontal" >
 
      <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_marginLeft="5dp"
        android:layout_marginRight="5dp"
        android:gravity="center"
        android:orientation="horizontal" >
 
        <CheckBox
          android:id="@+id/checkbox_add"
          style="@style/CustomCheckboxTheme2"
          android:layout_width="wrap_content"
          android:clickable="false"
          android:layout_height="wrap_content" />
      </LinearLayout>
 
      <LinearLayout
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="horizontal" >
 
        <TextView
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="合计:"
          android:textColor="@color/white"
          android:textSize="@dimen/small_size" />
 
        <TextView
          android:id="@+id/integral_sum"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_marginLeft="5dp"
          android:layout_marginRight="5dp"
          android:text="0"
          android:textColor="@color/theme_color"
          android:textSize="@dimen/small_size" />
 
        <TextView
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="积分"
          android:textColor="@color/white"
          android:textSize="@dimen/small_size" />
      </LinearLayout>
    </LinearLayout>
 
    <TextView
      android:layout_width="0dp"
      android:layout_height="match_parent"
      android:layout_weight="1"
      android:background="@color/theme_color"
      android:gravity="center"
      android:text="结算"
      android:textColor="@color/white"
      android:textSize="@dimen/small_size" />
  </LinearLayout>
 
</RelativeLayout>

-XML中头部可以到网上找一个这里就不放上来了
.checkbox和button的样式可以根据个人喜好设置。

Adaper中的代码:

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public class ShoppingCartAdapter extends BaseAdapter {
 
  private Context context;
  private List<Test> loans;
  private LayoutInflater inflater;
  private static HashMap<Integer, Boolean> isSelected;
  private static HashMap<Integer, Integer> numbers;
  private Handler handler;
  int num;// 商品数量
 
  static class ViewHolder { // 自定义控件集合
    public CheckBox ck_select;
    public ImageView pic_goods;
    public TextView id_goods;
    public TextView color_goods;
    public TextView type_goods;
    public TextView integral_goods;
    public AddMinusWidget add_minus;
    public LinearLayout layout;
    public TextView number;
    public Button minus;
    public Button plus;
  }
 
  /**
   * 实例化Adapter
   *
   * @param context
   * @param data
   */
  public ShoppingCartAdapter(Context context, Handler handler, List<Test> data) {
    this.context = context;
    this.inflater = LayoutInflater.from(context);
    this.loans = data;
    this.handler = handler;
    isSelected = new HashMap<Integer, Boolean>();
    numbers = new HashMap<Integer, Integer>();
    initDate();
  }
 
  private void initDate() {
    for (int i = 0; i < loans.size(); i++) {
      getIsSelected().put(i, false);
      getNumbers().put(i, 1);
    }
  }
 
  @Override
  public int getCount() {
    return loans.size();
  }
 
  @Override
  public Object getItem(int position) {
    return loans.get(position);
  }
 
  @Override
  public long getItemId(int position) {
    return position;
  }
 
  @Override
  public View getView(final int position, View convertView, ViewGroup parent) {
    // 自定义视图
    ViewHolder itemView = null;
    if (convertView == null) {
      // 获取list_item布局文件的视图
      itemView = new ViewHolder();
      convertView = inflater.inflate(R.layout.list_shopping_cart_item,
          null);
      // 获取控件对象
      itemView.ck_select = (CheckBox) convertView
          .findViewById(R.id.ck_select);
      itemView.pic_goods = (ImageView) convertView
          .findViewById(R.id.pic_goods);
      itemView.id_goods = (TextView) convertView
          .findViewById(R.id.id_goods);
      itemView.color_goods = (TextView) convertView
          .findViewById(R.id.color_goods);
      itemView.type_goods = (TextView) convertView
          .findViewById(R.id.type_goods);
      itemView.integral_goods = (TextView) convertView
          .findViewById(R.id.integral_goods);
      itemView.number = (TextView) convertView.findViewById(R.id.number);
      itemView.minus = (Button) convertView.findViewById(R.id.minus);
      itemView.plus = (Button) convertView.findViewById(R.id.plus);
      convertView.setTag(itemView);
    } else {
      itemView = (ViewHolder) convertView.getTag();
    }
 
    init(itemView, position);
 
    itemView.ck_select.setChecked(getIsSelected().get(position));
    itemView.number.setText(getNumbers().get(position).toString());
    if (getIsSelected().get(position)) {
      itemView.ck_select.setChecked(true);
    } else {
      itemView.ck_select.setChecked(false);
    }
 
    String a = itemView.number.getText().toString();
    loans.get(position).setNum(Integer.valueOf(a));
 
    Test test = loans.get(position);
    itemView.id_goods.setText((CharSequence) test.getId());
    itemView.color_goods.setText((CharSequence) test.getColor());
    itemView.type_goods.setText((CharSequence) test.getType());
    itemView.integral_goods.setText((CharSequence) test.getIntegral());
    itemView.pic_goods.setImageResource(R.drawable.shopping);
    return convertView;
  }
 
  private void init(final ViewHolder itemView, final int position) {
 
    itemView.ck_select
        .setOnCheckedChangeListener(new OnCheckedChangeListener() {
 
          @Override
          public void onCheckedChanged(CompoundButton buttonView,
              boolean isChecked) {
            isSelected.put(position, true);
            getIsSelected().put(position, isChecked);
            itemView.ck_select.setChecked(getIsSelected().get(
                position));
            handler.sendMessage(handler.obtainMessage(10,
                getTotalPrice()));
 
            Iterator iterator = isSelected.entrySet().iterator();
            List<Boolean> array = new ArrayList<Boolean>();
            while (iterator.hasNext()) {
              HashMap.Entry entry = (HashMap.Entry) iterator
                  .next();
              Integer key = (Integer) entry.getKey();
              Boolean val = (Boolean) entry.getValue();
              array.add(val);
            }
            handler.sendMessage(handler.obtainMessage(11, array));
          }
        });
 
    final String numString = itemView.number.getText().toString();
    itemView.plus.setOnClickListener(new OnClickListener() {
 
      @Override
      public void onClick(View v) {
 
        if (numString == null || numString.equals("")) {
          num = 1;
          itemView.number.setText("1");
        } else {
          if (++num < 1) // 先加,再判断
          {
            num--;
 
            Toast.makeText(context, "请输入一个大于0的数字",
                Toast.LENGTH_SHORT).show();
          } else {
            itemView.number.setText(String.valueOf(num));
            loans.get(position).setNum(num);
            numbers.put(position, num);
            handler.sendMessage(handler.obtainMessage(10,
                getTotalPrice()));
            Log.i("test", "+:" + num);
          }
        }
      }
    });
    itemView.minus.setOnClickListener(new OnClickListener() {
 
      @Override
      public void onClick(View v) {
 
        if (numString == null || numString.equals("")) {
          num = 1;
          itemView.number.setText("1");
        } else {
          if (--num < 1) // 先加,再判断
          {
            num++;
            Log.i("test", "-:" + num);
            Toast.makeText(context, "请输入一个大于0的数字",
                Toast.LENGTH_SHORT).show();
            Log.i("test", "-:" + num);
          } else {
            itemView.number.setText(String.valueOf(num));
            Log.i("test", "-:" + num);
            loans.get(position).setNum(num);
            numbers.put(position, num);
            handler.sendMessage(handler.obtainMessage(10,
                getTotalPrice()));
          }
        }
 
      }
    });
 
  }
 
  /**
   * 计算选中商品的积分
   *
   * @return 返回需要付费的总积分
   */
  private float getTotalPrice() {
    Test bean = null;
    float totalPrice = 0;
    for (int i = 0; i < loans.size(); i++) {
      bean = loans.get(i);
      if (ShoppingCartAdapter.getIsSelected().get(i)) {
        totalPrice += bean.getNum()
            * Integer.valueOf(bean.getIntegral());
      }
    }
    return totalPrice;
  }
 
  public static HashMap<Integer, Boolean> getIsSelected() {
    return isSelected;
  }
 
  public static void setIsSelected(HashMap<Integer, Boolean> isSelected) {
    ShoppingCartAdapter.isSelected = isSelected;
  }
 
  public static HashMap<Integer, Integer> getNumbers() {
    return numbers;
  }
 
  public static void setNumbers(HashMap<Integer, Integer> numbers) {
    ShoppingCartAdapter.numbers = numbers;
  }
}

Adapter中的XML代码:

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:descendantFocusability="blocksDescendants"
  android:background="@color/white"
 
  android:orientation="vertical" >
  <View
    android:layout_width="match_parent"
    android:layout_height="0.1dp"
    android:background="@color/divider_color" />
 
  <LinearLayout
    android:id="@+id/layout5"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_vertical"
    android:orientation="horizontal"
    android:padding="5dp" >
 
    <CheckBox
      android:id="@+id/ck_select"
      style="@style/CustomCheckboxTheme"
      android:layout_width="wrap_content"
      android:focusable="false"
      android:layout_height="wrap_content"
      android:layout_marginRight="5dp" />
 
    <ImageView
      android:id="@+id/pic_goods"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:scaleType="fitCenter"
      android:src="@drawable/shopping" />
 
    <LinearLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_marginLeft="10dp"
      android:orientation="vertical" >
 
      <TextView
        android:id="@+id/id_goods"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="短袜男士星期 POLO棉袜潮男秋冬款礼盒装"
        android:textColor="@color/gry_999999"
        android:textSize="@dimen/small_size" />
 
      <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >
 
        <LinearLayout
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:orientation="vertical" >
 
          <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >
 
            <TextView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:text="颜色:"
              android:textColor="@color/gry_999999"
              android:textSize="12sp" />
 
            <TextView
              android:id="@+id/color_goods"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:text="黑色"
              android:textColor="@color/gry_999999"
              android:textSize="12sp" />
          </LinearLayout>
 
          <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >
 
            <TextView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:text="规格:"
              android:textColor="@color/gry_999999"
              android:textSize="12sp" />
 
            <TextView
              android:id="@+id/type_goods"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:text="普通"
              android:textColor="@color/gry_999999"
              android:textSize="12sp" />
          </LinearLayout>
 
          <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >
 
            <TextView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:text="所需积分"
              android:textColor="@color/theme_color"
              android:textSize="12sp" />
 
            <TextView
              android:id="@+id/integral_goods"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:text="1000"
              android:layout_marginLeft="5dp"
              android:textColor="@color/theme_color"
              android:textSize="12sp" />
          </LinearLayout>
        </LinearLayout>
 
        <LinearLayout
          android:layout_width="match_parent"
          android:layout_height="25dp"
          android:layout_gravity="bottom"
          android:layout_marginBottom="5dp"
          android:layout_marginRight="5dp"
          android:gravity="right"
          android:orientation="horizontal" >
 
          <LinearLayout
    android:layout_width="80dp"
    android:layout_height="25dp"
    android:layout_gravity="right"
    android:background="@color/white"
    android:orientation="horizontal" >
 
    <Button
      android:id="@+id/minus"
      android:layout_width="25dp"
      android:layout_height="match_parent"
      android:background="@drawable/kuangzi1"
      android:gravity="center"
      android:focusable="false"
      android:text="-"
      android:textColor="@color/black" >
    </Button>
 
    <TextView
      android:id="@+id/number"
      android:layout_width="30dp"
      android:layout_height="match_parent"
      android:background="@drawable/kuangzi1"
      android:gravity="center"
      android:inputType="number"
      android:text="1"
      android:textColor="@color/black" >
    </TextView>
 
    <Button
      android:id="@+id/plus"
      android:layout_width="25dp"
      android:layout_height="match_parent"
      android:background="@drawable/kuangzi1"
      android:gravity="center"
      android:focusable="false"
      android:text="+"
      android:textColor="@color/black" >
    </Button>
  </LinearLayout>
        </LinearLayout>
      </LinearLayout>
    </LinearLayout>
  </LinearLayout>
 
  <View
    android:layout_width="match_parent"
    android:layout_height="0.1dp"
    android:background="@color/divider_color" />
 
</LinearLayout>

实体类:

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package com.autoserve.net33.model;
 
 
public class Test {
  @Override
  public String toString() {
    return "test [id=" + id + ", color=" + color
        + ", type=" + type + ", integral=" + integral + "]";
  }
 
  public String getId() {
    return id;
  }
  public void setId(String id) {
    this.id = id;
  }
  public String getColor() {
    return color;
  }
  public void setColor(String color) {
    this.color = color;
  }
  public String getType() {
    return type;
  }
  public void setType(String type) {
    this.type = type;
  }
  public String getIntegral() {
    return integral;
  }
  public void setIntegral(String integral) {
    this.integral = integral;
  }
  private String id;
  private String color;
  private String type;
  private String integral;
  private int num;//商品数量
  private int sumIntegral;
  private boolean isChoosed;   //商品是否在购物车中被选中
 
  public Test(String id, String color, String type, String integral) {
    super();
    this.id = id;
    this.color = color;
    this.type = type;
    this.integral = integral;
  }
  public Test() {
    super();
  }
 
  public int getNum() {
    return num;
  }
 
  public void setNum(int num) {
    this.num = num;
  }
 
  public int getSumIntegral() {
    return sumIntegral;
  }
 
  public void setSumIntegral(int sumIntegral) {
    this.sumIntegral = sumIntegral;
  }
 
  public boolean isChoosed() {
    return isChoosed;
  }
 
  public void setChoosed(boolean isChoosed) {
    this.isChoosed = isChoosed;
  
}

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