实现购物车

expan = (ExpandableListView) findViewById(R.id.expand);quan = (CheckBox) findViewById(R.id.quan);he = (TextView) findViewById(R.id.he);jie = (TextView) findViewById(R.id.jie);group = new ArrayList<GroupBean>();child = new ArrayList<List<ChildBean>>();for (int i = 0; i< 2; i++){    group.add(new GroupBean("商铺",false));    List<ChildBean> chilDb = new ArrayList<>();    for (int j = 0; j< 2; j++){        chilDb.add(new ChildBean("商品","100","http://avatar.csdn.net/E/B/A/1_liu461211527.jpg ",false,1));    }    child.add(chilDb);}CartUtils.setCartData(this,group,child, expan,quan,he,jie);