简单购物车的实现

主页面的实现

import android.content.Context;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.CheckBox;import android.widget.ExpandableListView;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.RelativeLayout;import android.widget.TextView;import android.widget.Toast;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;public class MainActivity extends AppCompatActivity {    //定义父列表项List数据集合    List<Map<String, Object>> parentMapList = new ArrayList<Map<String, Object>>();    //定义子列表项List数据集合    List<List<Map<String, Object>>> childMapList_list = new ArrayList<List<Map<String, Object>>>();    MyBaseExpandableListAdapter myBaseExpandableListAdapter;    CheckBox id_cb_select_all;    LinearLayout id_ll_normal_all_state;    LinearLayout id_ll_editing_all_state;    ExpandableListView expandableListView;    RelativeLayout id_rl_cart_is_empty;    RelativeLayout id_rl_foot;    TextView id_tv_edit_all;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);             initCartData();        expandableListView = (ExpandableListView) findViewById(R.id.id_elv_listview);        myBaseExpandableListAdapter = new MyBaseExpandableListAdapter(this, parentMapList, childMapList_list);        expandableListView.setAdapter(myBaseExpandableListAdapter);        expandableListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                Toast.makeText(MainActivity.this, "click：" + position, Toast.LENGTH_SHORT).show();            }        });        for (int i = 0; i < parentMapList.size(); i++) {            expandableListView.expandGroup(i);        }        ImageView id_iv_back = (ImageView) findViewById(R.id.id_iv_back);        id_iv_back.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Toast.makeText(MainActivity.this, "click :back", Toast.LENGTH_SHORT).show();            }        });        id_ll_normal_all_state = (LinearLayout) findViewById(R.id.id_ll_normal_all_state);        id_ll_editing_all_state = (LinearLayout) findViewById(R.id.id_ll_editing_all_state);        id_rl_cart_is_empty = (RelativeLayout) findViewById(R.id.id_rl_cart_is_empty);        TextView id_tv_save_star_all = (TextView) findViewById(R.id.id_tv_save_star_all);        id_tv_save_star_all.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Toast.makeText(MainActivity.this, "收藏多选商品", Toast.LENGTH_SHORT).show();            }        });        TextView id_tv_delete_all = (TextView) findViewById(R.id.id_tv_delete_all);        id_tv_delete_all.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                myBaseExpandableListAdapter.removeGoods();                // Toast.makeText(MainActivity.this, "删除多选商品", Toast.LENGTH_SHORT).show();            }        });        id_tv_edit_all = (TextView) findViewById(R.id.id_tv_edit_all);        id_tv_edit_all.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                if (v instanceof TextView) {                    TextView tv = (TextView) v;                    if (MyBaseExpandableListAdapter.EDITING.equals(tv.getText())) {                        myBaseExpandableListAdapter.setupEditingAll(true);                        tv.setText(MyBaseExpandableListAdapter.FINISH_EDITING);                        changeFootShowDeleteView(true);//这边类似的功能 后期待使用观察者模式                    } else {                        myBaseExpandableListAdapter.setupEditingAll(false);                        tv.setText(MyBaseExpandableListAdapter.EDITING);                        changeFootShowDeleteView(false);//这边类似的功能 后期待使用观察者模式                    }                }            }        });        id_cb_select_all = (CheckBox) findViewById(R.id.id_cb_select_all);      /* 要么遍历判断再选择 id_cb_select_all.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {       */        id_cb_select_all.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                if (v instanceof CheckBox) {                    CheckBox checkBox = (CheckBox) v;                    myBaseExpandableListAdapter.setupAllChecked(checkBox.isChecked());                }            }        });        final TextView id_tv_totalPrice = (TextView) findViewById(R.id.id_tv_totalPrice);        final TextView id_tv_totalCount_jiesuan = (TextView) findViewById(R.id.id_tv_totalCount_jiesuan);        id_tv_totalCount_jiesuan.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Toast.makeText(MainActivity.this, "click：结算", Toast.LENGTH_SHORT).show();            }        });        myBaseExpandableListAdapter.setOnGoodsCheckedChangeListener(new MyBaseExpandableListAdapter.OnGoodsCheckedChangeListener() {            @Override            public void onGoodsCheckedChange(int totalCount, double totalPrice) {                id_tv_totalPrice.setText(String.format(getString(R.string.total), totalPrice));                id_tv_totalCount_jiesuan.setText(String.format(getString(R.string.jiesuan), totalCount));            }        });        myBaseExpandableListAdapter.setOnAllCheckedBoxNeedChangeListener(new MyBaseExpandableListAdapter.OnAllCheckedBoxNeedChangeListener() {            @Override            public void onCheckedBoxNeedChange(boolean allParentIsChecked) {                id_cb_select_all.setChecked(allParentIsChecked);            }        });        myBaseExpandableListAdapter.setOnEditingTvChangeListener(new MyBaseExpandableListAdapter.OnEditingTvChangeListener() {            @Override            public void onEditingTvChange(boolean allIsEditing) {                changeFootShowDeleteView(allIsEditing);//这边类似的功能 后期待使用观察者模式            }        });        myBaseExpandableListAdapter.setOnCheckHasGoodsListener(new MyBaseExpandableListAdapter.OnCheckHasGoodsListener() {            @Override            public void onCheckHasGoods(boolean isHasGoods) {                setupViewsShow(isHasGoods);            }        });        /**====include进来方式可能会导致view覆盖listview的最后一个item 解决*/        //在onCreate方法中一般没办法直接调用view.getHeight方法来获取到控件的高度        id_rl_foot = (RelativeLayout) findViewById(R.id.id_rl_foot);        int w = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);        int h = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);        id_rl_foot.measure(w, h);        int r_width = id_rl_foot.getMeasuredWidth();        int r_height = id_rl_foot.getMeasuredHeight();        Log.i("MeasureSpec", "MeasureSpec r_width = " + r_width);        Log.i("MeasureSpec", "MeasureSpec r_height = " + r_height);        RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);        int top = dp2px(this, 48);        lp.setMargins(0, top, 0, r_height);//48        expandableListView.setLayoutParams(lp);        /**==========*/        if (parentMapList != null && parentMapList.size() > 0) {            setupViewsShow(true);        } else {            setupViewsShow(false);        }    /*    *//**         * 第一个参数  应用程序接口 this         * 第二个父列List<?extends Map<String,Object>>集合 为父列提供数据         * 第三个参数  父列显示的组件资源文件         * 第四个参数  键值列表 父列Map字典的key         * 第五个要显示的父列组件id         * 第六个 子列的显示资源文件         * 第七个参数 键值列表的子列Map字典的key         * 第八个要显示子列的组件id         *         * 第五个参数groupTo - The group views that should display column in the "groupFrom" parameter. These should all be TextViews. The first N views in this list are given the values of the first N columns in the groupFrom parameter.         */    }    private void setupViewsShow(boolean isHasGoods) {        if (isHasGoods) {            expandableListView.setVisibility(View.VISIBLE);            id_rl_cart_is_empty.setVisibility(View.GONE);            id_rl_foot.setVisibility(View.VISIBLE);            id_tv_edit_all.setVisibility(View.VISIBLE);        } else {            expandableListView.setVisibility(View.GONE);            id_rl_cart_is_empty.setVisibility(View.VISIBLE);            id_rl_foot.setVisibility(View.GONE);            id_tv_edit_all.setVisibility(View.GONE);        }    }    public void changeFootShowDeleteView(boolean showDeleteView) {        if (showDeleteView) {            id_tv_edit_all.setText(MyBaseExpandableListAdapter.FINISH_EDITING);            id_ll_normal_all_state.setVisibility(View.INVISIBLE);            id_ll_editing_all_state.setVisibility(View.VISIBLE);        } else {            id_tv_edit_all.setText(MyBaseExpandableListAdapter.EDITING);            id_ll_normal_all_state.setVisibility(View.VISIBLE);            id_ll_editing_all_state.setVisibility(View.INVISIBLE);        }    }    public int dp2px(Context context, float dp) {        float scale = context.getResources().getDisplayMetrics().density;        return (int) (dp * scale + 0.5f);    }    private void initCartData() {        for (int i = 0; i < 4; i++) {            String store = "旗舰店";            if (i % 2 == 0) {                store = "专营店";            }            //提供父列表的数据            Map<String, Object> parentMap = new HashMap<String, Object>();            parentMap.put("parentName", new StoreBean("" + i, store + i, false, false));            parentMapList.add(parentMap);            //提供当前父列的子列数据            List<Map<String, Object>> childMapList = new ArrayList<Map<String, Object>>();            for (int j = 0; j < 3; j++) {                Map<String, Object> childMap = new HashMap<String, Object>();                GoodsBean goodsBean = new GoodsBean(i + "_" + j, store + i + "下的商品" + j, "url", "均码，红色", 150, 120, 1, GoodsBean.STATUS_VALID, false, false);                childMap.put("childName", goodsBean);                childMapList.add(childMap);            }            childMapList_list.add(childMapList);        }    }}

适配器

MyBaseExpandableListAdapter
import android.content.Context;import android.graphics.Paint;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseExpandableListAdapter;import android.widget.CheckBox;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;import android.widget.Toast;import java.util.List;import java.util.Map;/** * Created by louisgeek on 2016/4/27. */public class MyBaseExpandableListAdapter extends BaseExpandableListAdapter {    private static final String TAG = "MyBaseEtAdapter";    List<Map<String, Object>> parentMapList;    List<List<Map<String, Object>>> childMapList_list;    Context context;    int totalCount = 0;    double totalPrice = 0.00;    public static final String EDITING = "编辑";    public static final String FINISH_EDITING = "完成";    OnAllCheckedBoxNeedChangeListener onAllCheckedBoxNeedChangeListener;    OnGoodsCheckedChangeListener onGoodsCheckedChangeListener;    OnCheckHasGoodsListener onCheckHasGoodsListener;    public void setOnCheckHasGoodsListener(OnCheckHasGoodsListener onCheckHasGoodsListener) {        this.onCheckHasGoodsListener = onCheckHasGoodsListener;    }    public void setOnEditingTvChangeListener(OnEditingTvChangeListener onEditingTvChangeListener) {        this.onEditingTvChangeListener = onEditingTvChangeListener;    }    OnEditingTvChangeListener onEditingTvChangeListener;    public void setOnGoodsCheckedChangeListener(OnGoodsCheckedChangeListener onGoodsCheckedChangeListener) {        this.onGoodsCheckedChangeListener = onGoodsCheckedChangeListener;    }    public void setOnAllCheckedBoxNeedChangeListener(OnAllCheckedBoxNeedChangeListener onAllCheckedBoxNeedChangeListener) {        this.onAllCheckedBoxNeedChangeListener = onAllCheckedBoxNeedChangeListener;    }    public MyBaseExpandableListAdapter(Context context, List<Map<String, Object>> parentMapList, List<List<Map<String, Object>>> childMapList_list) {        this.parentMapList = parentMapList;        this.childMapList_list = childMapList_list;        this.context = context;    }    //获取当前父item的数据数量    @Override    public int getGroupCount() {        return parentMapList.size();    }    //获取当前父item下的子item的个数    @Override    public int getChildrenCount(int groupPosition) {        return childMapList_list.get(groupPosition).size();    }    //获取当前父item的数据    @Override    public Object getGroup(int groupPosition) {        return parentMapList.get(groupPosition);    }    //得到子item需要关联的数据    @Override    public Object getChild(int groupPosition, int childPosition) {        return childMapList_list.get(groupPosition).get(childPosition);    }    //得到父item的ID    @Override    public long getGroupId(int groupPosition) {        return groupPosition;    }    //得到子item的ID    @Override    public long getChildId(int groupPosition, int childPosition) {        return childPosition;    }    @Override    public boolean hasStableIds() {        //return false;        return true;    }    //设置父item组件    @Override    public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {        GroupViewHolder groupViewHolder = null;        if (convertView == null) {            convertView = LayoutInflater.from(context).inflate(R.layout.parent_layout, null);            groupViewHolder = new GroupViewHolder();            groupViewHolder.tv_title_parent = (TextView) convertView                    .findViewById(R.id.tv_title_parent);            groupViewHolder.id_tv_edit = (TextView) convertView                    .findViewById(R.id.id_tv_edit);            groupViewHolder.id_cb_select_parent = (CheckBox) convertView                    .findViewById(R.id.id_cb_select_parent);            convertView.setTag(groupViewHolder);        } else {            groupViewHolder = (GroupViewHolder) convertView.getTag();        }        StoreBean storeBean = (StoreBean) parentMapList.get(groupPosition).get("parentName");        final String parentName = storeBean.getName();        groupViewHolder.tv_title_parent.setText(parentName);        if (storeBean.isEditing()) {            groupViewHolder.id_tv_edit.setText(FINISH_EDITING);        } else {            groupViewHolder.id_tv_edit.setText(EDITING);        }        groupViewHolder.id_tv_edit.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                String text = "";                TextView textView = null;                if (v instanceof TextView) {                    textView = (TextView) v;                }                // Toast.makeText(context, "编辑：" + groupPosition, Toast.LENGTH_SHORT).show();                textView.setText(text);                setupEditing(groupPosition);                onEditingTvChangeListener.onEditingTvChange(dealAllEditingIsEditing());            }        });        //覆盖原有收起展开事件        convertView.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Toast.makeText(context, "店铺：" + parentName, Toast.LENGTH_SHORT).show();            }        });        groupViewHolder.id_cb_select_parent.setChecked(storeBean.isChecked());        final boolean nowBeanChecked = storeBean.isChecked();        groupViewHolder.id_cb_select_parent.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                setupOneParentAllChildChecked(!nowBeanChecked, groupPosition);                //控制总checkedbox 接口                onAllCheckedBoxNeedChangeListener.onCheckedBoxNeedChange(dealAllParentIsChecked());            }        });        //遍历改变也会触发这个方法        return convertView;    }    //设置子item的组件    @Override    public View getChildView(final int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {        ChildViewHolder childViewHolder = null;        if (convertView == null) {            convertView = LayoutInflater.from(context).inflate(R.layout.child_layout, null);            childViewHolder = new ChildViewHolder();            childViewHolder.tv_items_child = (TextView) convertView                    .findViewById(R.id.tv_items_child);            childViewHolder.id_cb_select_child = (CheckBox) convertView                    .findViewById(R.id.id_cb_select_child);            childViewHolder.id_ll_normal = (LinearLayout) convertView                    .findViewById(R.id.id_ll_normal);            childViewHolder.id_ll_edtoring = (LinearLayout) convertView                    .findViewById(R.id.id_ll_edtoring);            //常规下：            childViewHolder.tv_items_child_desc = (TextView) convertView                    .findViewById(R.id.tv_items_child_desc);            childViewHolder.id_tv_price = (TextView) convertView                    .findViewById(R.id.id_tv_price);            childViewHolder.id_tv_discount_price = (TextView) convertView                    .findViewById(R.id.id_tv_discount_price);            childViewHolder.id_tv_count = (TextView) convertView                    .findViewById(R.id.id_tv_count);            //编辑下：            childViewHolder.id_iv_reduce = (ImageView) convertView                    .findViewById(R.id.id_iv_reduce);            childViewHolder.id_iv_add = (ImageView) convertView                    .findViewById(R.id.id_iv_add);            childViewHolder.id_tv_count_now = (TextView) convertView                    .findViewById(R.id.id_tv_count_now);            childViewHolder.id_tv_price_now = (TextView) convertView                    .findViewById(R.id.id_tv_price_now);            childViewHolder.id_tv_des_now = (TextView) convertView                    .findViewById(R.id.id_tv_des_now);            childViewHolder.id_tv_goods_star = (TextView) convertView                    .findViewById(R.id.id_tv_goods_star);            childViewHolder.id_tv_goods_delete = (TextView) convertView                    .findViewById(R.id.id_tv_goods_delete);            convertView.setTag(childViewHolder);        } else {            childViewHolder = (ChildViewHolder) convertView.getTag();        }        final GoodsBean goodsBean = (GoodsBean) childMapList_list.get(groupPosition).get(childPosition).get("childName");        convertView.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Toast.makeText(context, "商品：" + goodsBean.getName(), Toast.LENGTH_SHORT).show();            }        });        childViewHolder.tv_items_child.setText(goodsBean.getName());        childViewHolder.id_tv_price.setText(String.format(context.getString(R.string.price), goodsBean.getPrice()));        // childViewHolder.id_tv_price.getPaint().setFlags(Paint.STRIKE_THRU_TEXT_FLAG);//数字划线效果        childViewHolder.id_tv_price.getPaint().setFlags(Paint.STRIKE_THRU_TEXT_FLAG | Paint.ANTI_ALIAS_FLAG); // 设置中划线并抗锯齿        childViewHolder.id_tv_discount_price.setText(String.format(context.getString(R.string.price), goodsBean.getDiscountPrice()));        childViewHolder.tv_items_child_desc.setText(String.valueOf(goodsBean.getDesc()));        childViewHolder.id_tv_count.setText(String.format(context.getString(R.string.good_count), goodsBean.getCount()));        childViewHolder.id_tv_count_now.setText(String.valueOf(goodsBean.getCount()));        double priceNow = goodsBean.getCount() * goodsBean.getDiscountPrice();//小结        childViewHolder.id_tv_price_now.setText(String.format(context.getString(R.string.price), priceNow));        childViewHolder.id_tv_des_now.setText(goodsBean.getDesc());        childViewHolder.id_cb_select_child.setChecked(goodsBean.isChecked());        childViewHolder.id_cb_select_child.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                final boolean nowBeanChecked = goodsBean.isChecked();                //更新数据                goodsBean.setIsChecked(!nowBeanChecked);                boolean isOneParentAllChildIsChecked = dealOneParentAllChildIsChecked(groupPosition);                Log.d(TAG, "getChildView:onClick:  ==============");                Log.d(TAG, "getChildView:onClick:isOneParentAllChildIsChecked:" + isOneParentAllChildIsChecked);                StoreBean storeBean = (StoreBean) parentMapList.get(groupPosition).get("parentName");                storeBean.setIsChecked(isOneParentAllChildIsChecked);                notifyDataSetChanged();                //控制总checkedbox 接口                onAllCheckedBoxNeedChangeListener.onCheckedBoxNeedChange(dealAllParentIsChecked());                dealPrice();            }        });        if (goodsBean.isEditing()) {            childViewHolder.id_ll_normal.setVisibility(View.GONE);            childViewHolder.id_ll_edtoring.setVisibility(View.VISIBLE);        } else {            childViewHolder.id_ll_normal.setVisibility(View.VISIBLE);            childViewHolder.id_ll_edtoring.setVisibility(View.GONE);        }        childViewHolder.id_iv_add.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                dealAdd(goodsBean);            }        });        childViewHolder.id_iv_reduce.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                //TextView textView= (TextView) v.getRootView().findViewById(R.id.id_tv_num);                dealReduce(goodsBean);            }        });        childViewHolder.id_tv_goods_star.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Toast.makeText(context, "收藏商品：" + goodsBean.getName(), Toast.LENGTH_SHORT).show();            }        });        childViewHolder.id_tv_goods_delete.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                //  Toast.makeText(context, "删除商品：" + goodsBean.getName(), Toast.LENGTH_SHORT).show();                removeOneGood(groupPosition, childPosition);            }        });        return convertView;    }    @Override    public boolean isChildSelectable(int groupPosition, int childPosition) {        // return false;        return true;    }    //供全选按钮调用    public void setupAllChecked(boolean isChecked) {        Log.d(TAG, "setupAllChecked: ============");        Log.d(TAG, "setupAllChecked: isChecked：" + isChecked);        for (int i = 0; i < parentMapList.size(); i++) {            StoreBean storeBean = (StoreBean) parentMapList.get(i).get("parentName");            storeBean.setIsChecked(isChecked);            List<Map<String, Object>> childMapList = childMapList_list.get(i);            for (int j = 0; j < childMapList.size(); j++) {                GoodsBean goodsBean = (GoodsBean) childMapList.get(j).get("childName");                goodsBean.setIsChecked(isChecked);            }        }        notifyDataSetChanged();        dealPrice();    }    private void setupOneParentAllChildChecked(boolean isChecked, int groupPosition) {        Log.d(TAG, "setupOneParentAllChildChecked: ============");        Log.d(TAG, "setupOneParentAllChildChecked: groupPosition:" + groupPosition);        Log.d(TAG, "setupOneParentAllChildChecked: isChecked：" + isChecked);        StoreBean storeBean = (StoreBean) parentMapList.get(groupPosition).get("parentName");        storeBean.setIsChecked(isChecked);        List<Map<String, Object>> childMapList = childMapList_list.get(groupPosition);        for (int j = 0; j < childMapList.size(); j++) {            GoodsBean goodsBean = (GoodsBean) childMapList.get(j).get("childName");            goodsBean.setIsChecked(isChecked);        }        notifyDataSetChanged();        dealPrice();    }    public boolean dealOneParentAllChildIsChecked(int groupPosition) {        Log.d(TAG, "dealOneParentAllChildIsChecked: ============");        Log.d(TAG, "dealOneParentAllChildIsChecked: groupPosition：" + groupPosition);        // StoreBean storeBean= (StoreBean) parentMapList.get(groupPosition).get("parentName");        List<Map<String, Object>> childMapList = childMapList_list.get(groupPosition);        for (int j = 0; j < childMapList.size(); j++) {            GoodsBean goodsBean = (GoodsBean) childMapList.get(j).get("childName");            if (!goodsBean.isChecked()) {                return false;//如果有一个没选择  就false            }        }        return true;    }    public boolean dealAllParentIsChecked() {        Log.d(TAG, "dealAllParentIsChecked: ============");        for (int i = 0; i < parentMapList.size(); i++) {            StoreBean storeBean = (StoreBean) parentMapList.get(i).get("parentName");            if (!storeBean.isChecked()) {                return false;//如果有一个没选择  就false            }        }        return true;    }    public void dealPrice() {        // showList();        totalCount = 0;        totalPrice = 0.00;        for (int i = 0; i < parentMapList.size(); i++) {            //StoreBean storeBean= (StoreBean) parentMapList.get(i).get("parentName");            List<Map<String, Object>> childMapList = childMapList_list.get(i);            for (int j = 0; j < childMapList.size(); j++) {                GoodsBean goodsBean = (GoodsBean) childMapList.get(j).get("childName");                int count = goodsBean.getCount();                double discountPrice = goodsBean.getDiscountPrice();                if (goodsBean.isChecked()) {                    totalCount++;//单品多数量只记1                    totalPrice += discountPrice * count;                }            }        }        //计算回调        onGoodsCheckedChangeListener.onGoodsCheckedChange(totalCount, totalPrice);    }    //供总编辑按钮调用    public void setupEditingAll(boolean isEditingAll) {        for (int i = 0; i < parentMapList.size(); i++) {            StoreBean storeBean = (StoreBean) parentMapList.get(i).get("parentName");            storeBean.setIsEditing(isEditingAll);            List<Map<String, Object>> childMapList = childMapList_list.get(i);            for (int j = 0; j < childMapList.size(); j++) {                GoodsBean goodsBean = (GoodsBean) childMapList.get(j).get("childName");                goodsBean.setIsEditing(isEditingAll);            }        }        notifyDataSetChanged();    }    public boolean dealAllEditingIsEditing() {        for (int i = 0; i < parentMapList.size(); i++) {            StoreBean storeBean = (StoreBean) parentMapList.get(i).get("parentName");            if (storeBean.isEditing()) {//!!!                return true;//如果有一个是编辑状态  就true            }        }        return false;    }    public void setupEditing(int groupPosition) {        StoreBean storeBean = (StoreBean) parentMapList.get(groupPosition).get("parentName");        boolean isEditing = !storeBean.isEditing();        storeBean.setIsEditing(isEditing);        List<Map<String, Object>> childMapList = childMapList_list.get(groupPosition);        for (int j = 0; j < childMapList.size(); j++) {            GoodsBean goodsBean = (GoodsBean) childMapList.get(j).get("childName");            goodsBean.setIsEditing(isEditing);        }        notifyDataSetChanged();    }    public void dealAdd(GoodsBean goodsBean) {        int count = goodsBean.getCount();        count++;        goodsBean.setCount(count);        //  textView.setText(String.valueOf(count));        notifyDataSetChanged();        dealPrice();    }    public void dealReduce(GoodsBean goodsBean) {        int count = goodsBean.getCount();        if (count == 1) {            return;        }        count--;        goodsBean.setCount(count);        // textView.setText(String.valueOf(count));        notifyDataSetChanged();        dealPrice();    }    public void removeOneGood(int groupPosition, int childPosition) {        //StoreBean storeBean = (StoreBean) parentMapList.get(groupPosition).get("parentName");        List<Map<String, Object>> childMapList = childMapList_list.get(groupPosition);        // GoodsBean goodsBean = (GoodsBean) childMapList.get(childPosition).get("childName");        childMapList.remove(childPosition);        //通过子项        if (childMapList!=null&&childMapList.size()>0){        }else {            parentMapList.remove(groupPosition);            childMapList_list.remove(groupPosition);//！！！！因为parentMapList和childMapList_list是pos关联的  得保持一致        }        if (parentMapList != null && parentMapList.size() > 0) {            onCheckHasGoodsListener.onCheckHasGoods(true);//        } else {            onCheckHasGoodsListener.onCheckHasGoods(false);//        }        notifyDataSetChanged();        dealPrice();    }    public void removeGoods() {          for (int i = parentMapList.size()-1; i>=0; i--) {//倒过来遍历  remove            StoreBean storeBean= (StoreBean) parentMapList.get(i).get("parentName");            if (storeBean.isChecked()){                parentMapList.remove(i);                childMapList_list.remove(i);            }else {                List<Map<String, Object>> childMapList = childMapList_list.get(i);                for (int j = childMapList.size()-1; j >=0; j--) {//倒过来遍历  remove                    GoodsBean goodsBean = (GoodsBean) childMapList.get(j).get("childName");                    if (goodsBean.isChecked()) {                        childMapList.remove(j);                    }                }            }        }        //resetViewAfterDelete();        if (parentMapList != null && parentMapList.size() > 0) {            onCheckHasGoodsListener.onCheckHasGoods(true);//        } else {            onCheckHasGoodsListener.onCheckHasGoods(false);//        }        notifyDataSetChanged();//        dealPrice();//重新计算    }    public interface OnAllCheckedBoxNeedChangeListener {        void onCheckedBoxNeedChange(boolean allParentIsChecked);    }    public interface OnEditingTvChangeListener {        void onEditingTvChange(boolean allIsEditing);    }    public interface OnGoodsCheckedChangeListener {        void onGoodsCheckedChange(int totalCount, double totalPrice);    }    public interface OnCheckHasGoodsListener {        void onCheckHasGoods(boolean isHasGoods);    }    class GroupViewHolder {        TextView tv_title_parent;        TextView id_tv_edit;        CheckBox id_cb_select_parent;    }    class ChildViewHolder {        TextView tv_items_child;        CheckBox id_cb_select_child;        LinearLayout id_ll_normal;        LinearLayout id_ll_edtoring;        TextView tv_items_child_desc;        TextView id_tv_price;        TextView id_tv_discount_price;        TextView id_tv_count;        ImageView id_iv_reduce;        ImageView id_iv_add;        TextView id_tv_des_now;        TextView id_tv_count_now;        TextView id_tv_price_now;        TextView id_tv_goods_star;        TextView id_tv_goods_delete;    }}

StoreBean类
public class StoreBean {    /** 店铺ID */    private String id;    /** 店铺名称 */    private String name;    private boolean isChecked;    private boolean isEditing;    public StoreBean(String id, String name,boolean isChecked,boolean isEditing) {        this.id = id;        this.name = name;        this.isChecked = isChecked;        this.isEditing = isEditing;    }    public StoreBean() {    }    public String getId() {        return id;    }    public void setId(String id) {        this.id = id;    }    public boolean isEditing() {        return isEditing;    }    public void setIsEditing(boolean isEditing) {        this.isEditing = isEditing;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public boolean isChecked() {        return isChecked;    }    public void setIsChecked(boolean isChecked) {        this.isChecked = isChecked;    }}

GoodsBean类
public class GoodsBean {    public static final  int STATUS_INVALID=0;    public static final  int STATUS_VALID=1;    //===============================================    private String id;    private String name;    /** 商品宣传图片 */    private String imageLogo;    /** 商品规格 */    private String desc;    /** 原价，市场价 */    private double price;    /** 现价，折扣价 */    private double discountPrice;    private int count;    /** 状态 */    private int status;    /** 是否被选中 */    private boolean isChecked;    /** 是否是编辑状态 */    private boolean isEditing;    public GoodsBean(String id, String name, String imageLogo, String desc, double price, double discountPrice, int count, int status, boolean isChecked, boolean isEditing) {        this.id = id;        this.name = name;        this.imageLogo = imageLogo;        this.desc = desc;        this.price = price;        this.discountPrice = discountPrice;        this.count = count;        this.status = status;        this.isChecked = isChecked;        this.isEditing = isEditing;    }    public GoodsBean(){    }    public String getId() {        return id;    }    public void setId(String id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getImageLogo() {        return imageLogo;    }    public void setImageLogo(String imageLogo) {        this.imageLogo = imageLogo;    }    public String getDesc() {        return desc;    }    public void setDesc(String desc) {        this.desc = desc;    }    public double getPrice() {        return price;    }    public void setPrice(double price) {        this.price = price;    }    public double getDiscountPrice() {        return discountPrice;    }    public void setDiscountPrice(double discountPrice) {        this.discountPrice = discountPrice;    }    public int getCount() {        return count;    }    public void setCount(int count) {        this.count = count;    }    public int getStatus() {        return status;    }    public void setStatus(int status) {        this.status = status;    }    public boolean isChecked() {        return isChecked;    }    public void setIsChecked(boolean isChecked) {        this.isChecked = isChecked;    }    public boolean isEditing() {        return isEditing;    }    public void setIsEditing(boolean isEditing) {        this.isEditing = isEditing;    }}
res下的drawable包下
selector_check_bg.xml
<?xml version="1.0" encoding="utf-8"?><selector  xmlns:android="http://schemas.android.com/apk/res/android">    //少个点击的图片 <item android:drawable="@mipmap/ic_checked" android:state_checked="true"></item>//少个点击过得图片 <item android:drawable="@mipmap/ic_uncheck"></item></selector>res下的layoutactivity_main
?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".MainActivity">    <include layout="@layout/header_layout" />    <RelativeLayout        android:id="@+id/id_rl_cart_is_empty"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_marginTop="48dp"        android:background="#FCFCFC"        android:gravity="center"        android:visibility="gone">
        <ImageView            android:id="@+id/id_rl_cart_is_empty_image"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_centerHorizontal="true"
     //少个图片
 android:background="@mipmap/ic_shopping_cart_empty" />        <TextView            android:id="@+id/id_rl_cart_is_empty_text"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_below="@id/id_rl_cart_is_empty_image"            android:layout_centerHorizontal="true"            android:layout_marginTop="10dp"            android:text="购物车为空" />    </RelativeLayout>        <ExpandableListView        android:id="@+id/id_elv_listview"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:cacheColorHint="#00000000"        android:divider="#ebebeb"        android:dividerHeight="2dp"        android:footerDividersEnabled="false"        android:groupIndicator="@null"        android:visibility="visible"></ExpandableListView>        <include        layout="@layout/foot_layout"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true" /></RelativeLayout>


child_layout.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout  xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="#EEEEEE"    >    <!--android:focusable="false" 不占用原有View点击事件-->    <CheckBox        android:id="@+id/id_cb_select_child"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerVertical="true"        android:layout_marginLeft="10dp"        android:background="@null"        android:focusable="false"        android:button="@drawable/selector_check_bg"/>    <ImageView        android:id="@+id/id_iv_logo"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_toRightOf="@id/id_cb_select_child"        android:padding="10dp"        android:src="@mipmap/ic_launcher"        />    <LinearLayout        android:id="@+id/id_ll_normal"        android:layout_width="match_parent"        android:layout_toRightOf="@id/id_iv_logo"        android:layout_height="wrap_content"        android:orientation="vertical"        android:visibility="visible"        >    <TextView        android:id="@+id/tv_items_child"        android:padding="10dp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="商品名称"        >    </TextView>    <TextView        android:id="@+id/tv_items_child_desc"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="颜色规格描述"        >    </TextView>        <RelativeLayout            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_alignParentBottom="true"            android:layout_marginBottom="10dp"            >            <TextView                android:id="@+id/id_tv_discount_price"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_centerVertical="true"                android:singleLine="true"                android:text="@string/price"                android:textColor="@android:color/holo_red_light"                android:textSize="14dp"                android:textStyle="bold" />            <TextView                android:id="@+id/id_tv_price"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_centerVertical="true"                android:layout_marginLeft="13dp"                android:layout_toRightOf="@+id/id_tv_discount_price"                android:text="@string/price"                android:textSize="10dp"                />            <TextView                android:id="@+id/id_tv_count"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_centerVertical="true"                android:layout_marginRight="20dp"                android:layout_alignParentRight="true"                android:text="@string/good_count"                android:textSize="12dp"                />        </RelativeLayout>    </LinearLayout>    <!-- android:visibility="gone"-->    <LinearLayout        android:id="@+id/id_ll_edtoring"        android:layout_toRightOf="@id/id_iv_logo"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:visibility="gone"        android:orientation="horizontal">        <RelativeLayout            android:layout_width="0dp"            android:layout_weight="3"            android:layout_height="wrap_content"            >            <LinearLayout                android:id="@+id/ll_change_num"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginTop="10dp"                android:orientation="horizontal" >                <ImageView                    android:id="@+id/id_iv_reduce"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                  // 少一个减少的图片标识                   android:src="@mipmap/ic_reduce"                    android:padding="10dp"                    android:layout_gravity="center_vertical"                    />                <TextView                    android:id="@+id/id_tv_count_now"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:layout_gravity="center_vertical"                    android:gravity="center"                    android:padding="10dp"                    android:singleLine="true"                    android:text="1"                    android:textSize="14dp" />                <ImageView                    android:id="@+id/id_iv_add"                    android:layout_width="wrap_content"                    android:layout_height="wrap_content"                    android:layout_gravity="center_vertical"
                     //少一个添加的标识图片

                   android:src="@mipmap/ic_add"                    android:padding="10dp"                    />            </LinearLayout>            <TextView                android:id="@+id/id_tv_price_now"                android:layout_width="wrap_content"                android:layout_height="wrap_content"               android:layout_alignParentRight="true"                android:layout_marginTop="10dp"                android:layout_marginRight="10dp"                android:text="@string/price"                android:textColor="@android:color/holo_red_light"                android:textSize="14dp"                android:padding="10dp"                />            <TextView                android:id="@+id/id_tv_des_now"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:layout_marginTop="10dp"                android:layout_below="@id/ll_change_num"                android:text="颜色规格描述选择"                android:paddingLeft="10dp"                android:layout_marginBottom="10dp"                android:layout_gravity="left"                />        </RelativeLayout>        <TextView            android:layout_width="wrap_content"            android:id="@+id/id_tv_goods_star"            android:layout_height="match_parent"            android:layout_centerVertical="true"            android:background="@android:color/holo_orange_light"            android:text="收藏"            android:textColor="@android:color/white"            android:padding="13dp"            android:gravity="center"            android:layout_marginRight="2dp"            android:layout_gravity="center"            />        <TextView            android:layout_width="wrap_content"            android:id="@+id/id_tv_goods_delete"            android:layout_height="match_parent"            android:layout_alignParentRight="true"            android:layout_centerVertical="true"            android:background="#ff5000"            android:text="删除"            android:textColor="@android:color/white"            android:padding="13dp"            android:gravity="center"            android:layout_gravity="center"            />    </LinearLayout></RelativeLayout>


foot_layout.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/id_rl_foot"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="@android:color/white">    <ImageView        android:layout_width="match_parent"        android:layout_height="0.5dp"        android:layout_alignParentTop="true"        android:background="#ccc"/>    <CheckBox        android:id="@+id/id_cb_select_all"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerVertical="true"        android:layout_marginLeft="10dp"        android:background="@null"        android:text=" 全选"        android:button="@drawable/selector_check_bg"/>       <LinearLayout        android:id="@+id/id_ll_normal_all_state"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentRight="true"        android:visibility="visible"        android:orientation="horizontal">        <LinearLayout            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:orientation="vertical">            <TextView                android:id="@+id/id_tv_totalPrice"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginRight="5dp"                android:layout_marginTop="5dp"                android:gravity="right"                android:text="@string/total_0"                android:textColor="#ff2600"                android:textSize="13sp"/>            <TextView                android:id="@+id/tvPostPrice"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:layout_marginBottom="5dp"                android:layout_marginRight="5dp"                android:layout_marginTop="5dp"                android:gravity="right"                android:text="不含运费"                android:textColor="#666666"                android:textSize="11sp"/>        </LinearLayout>        <TextView            android:id="@+id/id_tv_totalCount_jiesuan"            android:layout_width="wrap_content"            android:layout_height="match_parent"            android:background="#ff5000"            android:gravity="center_vertical"            android:paddingBottom="5dp"            android:paddingLeft="20dp"            android:paddingRight="20dp"            android:paddingTop="5dp"            android:text="@string/jiesuan_0"            android:textColor="#FFF"            android:textSize="16dp"/>    </LinearLayout>    <LinearLayout        android:id="@+id/id_ll_editing_all_state"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="horizontal"        android:visibility="gone"        android:layout_alignParentRight="true"        >        <TextView            android:id="@+id/id_tv_save_star_all"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="移到收藏夹"            android:background="@android:color/holo_orange_light"            android:paddingBottom="15dp"            android:paddingLeft="20dp"            android:paddingRight="20dp"            android:paddingTop="15dp"            android:textSize="16dp"            android:layout_gravity="center_vertical"            android:gravity="center_vertical"            android:textColor="@color/white"              />        <TextView            android:id="@+id/id_tv_delete_all"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:background="#ff5000"            android:gravity="center_vertical"            android:paddingBottom="15dp"            android:paddingLeft="20dp"            android:paddingRight="20dp"            android:paddingTop="15dp"            android:layout_gravity="center_vertical"            android:textSize="16dp"            android:text="删除"            android:textColor="@color/white"            />    </LinearLayout></RelativeLayout>

header_layout.xml

<?xml version="1.0" encoding="utf-8"?>    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"       android:id="@+id/id_rl_head"        android:layout_width="match_parent"        android:layout_height="48dp"        android:background="@android:color/transparent"        android:orientation="vertical" >        <ImageView            android:id="@+id/id_iv_back"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentLeft="true"            android:layout_gravity="center_vertical"            android:layout_marginTop="5dp"            android:layout_marginBottom="5dp"         //少一个返回的图片 android:src="@mipmap/ic_back" />        <TextView            android:id="@+id/id_tv_cart_title"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:gravity="center"            android:minHeight="48dp"            android:text="购物车"            android:textColor="#1a1a1a"            android:textSize="16dp" />        <TextView            android:id="@+id/id_tv_edit_all"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentRight="true"            android:padding="5dp"            android:layout_marginRight="10dp"            android:layout_marginTop="5dp"            android:layout_marginBottom="5dp"            android:gravity="center"            android:minHeight="48dp"            android:text="编辑"            android:textColor="#1a1a1a"            android:textSize="16dp"            android:visibility="visible" />    </RelativeLayout>

parent_layout.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/id_ll_parent"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:paddingTop="5dp"    android:paddingBottom="5dp"    android:orientation="horizontal" >       <CheckBox        android:id="@+id/id_cb_select_parent"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerVertical="true"        android:layout_marginLeft="10dp"        android:background="@null"        android:focusable="false"        android:button="@drawable/selector_check_bg"/>    <TextView        android:id="@+id/tv_title_parent"        android:layout_marginLeft="5dp"        android:layout_marginTop="10dp"        android:layout_marginBottom="10dp"        android:layout_toRightOf="@id/id_cb_select_parent"        android:layout_centerVertical="true"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        //少一个店铺的图片      android:drawableLeft="@mipmap/shop_icon"        //右标识的图片       android:drawableRight="@mipmap/ic_right_icon"        android:drawablePadding="10dp"        />    <TextView        android:id="@+id/id_tv_edit"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="编辑"        android:layout_alignParentRight="true"        android:layout_marginRight="10dp"        android:padding="5dp"        android:layout_centerVertical="true"        /></RelativeLayout>

res/value下strings

<string name="app_name">LouisShopCart</string><string name="good_count">x %d</string><string name="price">￥%s</string><string name="total_0">合计：￥0.00</string><string name="total">合计：￥%s</string><string name="jiesuan_0">结算（0）</string><string name="jiesuan">结算（%s）</string><string name="cart_title_0">购物车(0)</string><string name="cart_title">购物车(%s)</string>注:xml中报错是没有图片,可将注释删除并填写默认的机器人图片,drawable尽量使用自己添加的图片,以上代码,亲测有效...