購物車Adapter

package com.test.expandablelistview;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.CheckBox;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

public class MyAdpater extends BaseExpandableListAdapter {
private Context context;
private String[] group;
private String[][] child;
private HashMap