实战第二站--购物车简单实现
来源：互联网 发布：销售数据库管理系统 编辑：程序博客网 时间：2024/05/21 06:22
Adapter
public class MyExpandableAdapter extends BaseExpandableListAdapter { private List<CartBean.DataBean> groupdata; private Context context; private List<List<CartBean.DataBean.ListBean>> childlist; public MyExpandableAdapter( List<CartBean.DataBean> groupdata, Context context, List<List<CartBean.DataBean.ListBean>> childlist) { this.groupdata = groupdata; this.context = context; this.childlist = childlist; } @Override public int getGroupCount() { return groupdata.size(); } @Override public int getChildrenCount(int groupPosition) { return childlist.get(groupPosition).size(); } @Override public Object getGroup(int groupPosition) { return groupdata.get(groupPosition); } @Override public Object getChild(int groupPosition, int childPosition) { return null; } @Override public long getGroupId(int groupPosition) { return groupPosition; } @Override public long getChildId(int groupPosition, int childPosition) { return childPosition; } @Override public boolean hasStableIds() { return false; } @Override public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { final GroupViewHolder holder; if (convertView == null) { convertView = View.inflate(context, R.layout.groupitem, null); holder = new GroupViewHolder(); holder.tv_group = convertView.findViewById(R.id.tv_group); holder.group_cb = convertView.findViewById(R.id.gx_group); convertView.setTag(holder); } else { holder = (GroupViewHolder) convertView.getTag(); } final CartBean.DataBean dataBean = groupdata.get(groupPosition); String sellerName = dataBean.getSellerName(); holder.group_cb.setChecked(dataBean.isCheck()); holder.tv_group.setText(sellerName); //点击一级checkbox的状态 holder.group_cb.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dataBean.setCheck(holder.group_cb.isChecked()); //改变所有孩子的状态 changeChildState(groupPosition,holder.group_cb.isChecked()); EventBus.getDefault().post(jS()); //通过判断一级的checkbox判断全选的状态 changeMianQXstatus(checkGroupAll()); notifyDataSetChanged(); } }); return convertView; } @Override public View getChildView(final int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { final ChildViewHolder holder; if (convertView == null) { convertView = View.inflate(context, R.layout.childitem, null); holder = new ChildViewHolder(); holder.tv_title=convertView.findViewById(R.id.title); holder.price=convertView.findViewById(R.id.price); //价格 holder.child_cb=convertView.findViewById(R.id.gouxuan_child); //子勾选 holder.jian=convertView.findViewById(R.id.jia); //加加 holder.del=convertView.findViewById(R.id.del); //删除 holder.add=convertView.findViewById(R.id.jian); //减 holder.sdv=convertView.findViewById(R.id.title_img); holder.tv_num=convertView.findViewById(R.id.tv_num); //数量 holder.yanse=convertView.findViewById(R.id.yanse); convertView.setTag(holder); } else { holder = (ChildViewHolder) convertView.getTag(); } final CartBean.DataBean.ListBean listBean = childlist.get(groupPosition).get(childPosition); int price = (int) listBean.getPrice(); holder.child_cb.setChecked(listBean.isCheck()); holder.price.setText("¥："+price+""); String title = listBean.getTitle(); holder.tv_title.setText(title); String subhead = listBean.getSubhead(); String substring = subhead.substring(1, 10)+"....."; holder.yanse.setText(substring); String images = listBean.getImages(); String[] split = images.split("\\|"); String s = split[0]; Uri uri=Uri.parse(s); holder.sdv.setImageURI(uri); // listBean.setCou(Integer.parseInt(holder.tv_num.getText().toString())); //给子条目的checkBox点击事件 holder.child_cb.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { listBean.setCheck(holder.child_cb.isChecked()); EventBus.getDefault().post(jS()); //如果二级的checkBox选中，就让一级的checkBox勾选 if(holder.child_cb.isChecked()) { if (ischeckAllchild(groupPosition)) { //改变一级checkBox的状态 changeGroupstatus(groupPosition,true); //通过判断一级的CheckBox的状态来改变全选的状态 changeMianQXstatus(checkGroupAll()); } }else{ changeGroupstatus(groupPosition,false); changeMianQXstatus(checkGroupAll()); } notifyDataSetChanged(); } }); //点击加加的功能 holder.add.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { int cou = listBean.getCou(); holder.tv_num.setText(++cou+""); listBean.setCou(cou); if(holder.child_cb.isChecked()){ EventBus.getDefault().post(jS()); } } }); //点击减减的功能 holder.jian.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { int cou = listBean.getCou(); if(cou==1) { Toast.makeText(context, "最小数量为1", Toast.LENGTH_SHORT).show(); return;} holder.tv_num.setText(--cou+""); listBean.setCou(cou); if (holder.child_cb.isChecked()) { EventBus.getDefault().post(jS()); } } }); //点击删除 holder.del.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { List<CartBean.DataBean.ListBean> listBeen = childlist.get(groupPosition); CartBean.DataBean.ListBean remove = listBeen.remove(childPosition); if(listBeen.size()==0){ childlist.remove(childPosition); groupdata.remove(groupPosition); } EventBus.getDefault().post(jS()); notifyDataSetChanged(); } }); return convertView; } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return true; } class GroupViewHolder { CheckBox group_cb; TextView tv_group; } class ChildViewHolder { CheckBox child_cb; TextView tv_title,price,yanse,tv_num; ImageView del,add,jian; SimpleDraweeView sdv; } /** * 判断全部的二级是CheckBox否选中 * */ private boolean ischeckAllchild(int g){ List<CartBean.DataBean.ListBean> listBeen = childlist.get(g); for (int i = 0; i <listBeen.size() ; i++) { CartBean.DataBean.ListBean listBean = listBeen.get(i); if(!listBean.isCheck()){ return false; } } return true; } /** * 计算数量和价格 * 通过遍历一级的得到二级的CheckBox，如果是选择的选中状态的话，就统计它们的总计的数量和价格 */ private CountAndPrice jS(){ int cou=0; int jiage=0; for (int i = 0; i <groupdata.size() ; i++) { for (int j = 0; j <childlist.get(i).size() ; j++) { CartBean.DataBean.ListBean listBean = childlist.get(i).get(j); if(listBean.isCheck()){ cou+=listBean.getCou(); jiage+=(int)listBean.getPrice()*listBean.getCou(); } } } CountAndPrice countAndPrice = new CountAndPrice(); countAndPrice.setCount(cou); countAndPrice.setPrice(jiage); return countAndPrice; } /** * 改变一级列表的状态 */ private void changeGroupstatus(int groupPosition,boolean flag ){ CartBean.DataBean dataBean = groupdata.get(groupPosition); dataBean.setCheck(flag); } /** * 改变全选的状态 * */ private void changeMianQXstatus(boolean flag){ MessgeEvent messgeEvent = new MessgeEvent(); messgeEvent.setCheck(flag); EventBus.getDefault().post(messgeEvent); } /** * 判断一级的是否全部选中 */ private boolean checkGroupAll(){ for (int i = 0; i < groupdata.size(); i++) { if(!groupdata.get(i).isCheck()){ return false; } } return true; } /** * 改变所有孩子的状态 */ private void changeChildState(int grouPistion,boolean flag){ List<CartBean.DataBean.ListBean> listBeen = childlist.get(grouPistion); for (int i = 0; i < listBeen.size(); i++) { listBeen.get(i).setCheck(flag); } } /** * 改变全选的 */ public void qx(boolean flag){ for (int i = 0; i < groupdata.size(); i++) { changeGroupstatus(i, flag); changeChildState(i, flag); } EventBus.getDefault().post(jS()); notifyDataSetChanged(); } Bean包public class CartBean { /** * msg : 请求成功 * code : 0 * data : 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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 { /** * list : [{"bargainPrice":22.9,"createtime":"2017-10-14T21:48:08","detailUrl":"https://item.m.jd.com/product/2542855.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t1930/284/2865629620/390243/e3ade9c4/56f0a08fNbd3a1235.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2137/336/2802996626/155915/e5e90d7a/56f0a09cN33e01bd0.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t1882/31/2772215910/389956/c8dbf370/56f0a0a2Na0c86ea6.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2620/166/2703833710/312660/531aa913/57709035N33857877.jpg!q70.jpg","num":1,"pid":24,"price":288,"pscid":2,"selected":0,"sellerid":1,"subhead":"三只松鼠零食特惠，专区满99减50，满199减100，火速抢购》","title":"三只松鼠 坚果炒货 零食奶油味 碧根果225g/袋"},{"bargainPrice":11800,"createtime":"2017-10-10T17:33:37","detailUrl":"https://item.m.jd.com/product/4338107.html?utm#_source=androidapp&utm#_medium=appshare&utm#_campaign=t#_335139774&utm#_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t6700/155/2098998076/156185/6cf95035/595dd5a5Nc3a7dab5.jpg!q70.jpg","num":2,"pid":57,"price":5199,"pscid":40,"selected":0,"sellerid":1,"subhead":"【i5 MX150 2G显存】全高清窄边框 8G内存 256固态硬盘 支持指纹识别 预装WIN10系统","title":"小米(MI)Air 13.3英寸全金属轻薄笔记本(i5-7200U 8G 256G PCle SSD MX150 2G独显 FHD 指纹识别 Win10）银\r\n"},{"bargainPrice":99,"createtime":"2017-10-14T21:38:26","detailUrl":"https://item.m.jd.com/product/4345173.html?utm#_source=androidapp&utm#_medium=appshare&utm#_campaign=t#_335139774&utm#_term=QQfriends","images":"https://m.360buyimg.com/n0/jfs/t6037/35/2944615848/95178/6cd6cff0/594a3a10Na4ec7f39.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t6607/258/1025744923/75738/da120a2d/594a3a12Ne3e6bc56.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t6370/292/1057025420/64655/f87644e3/594a3a12N5b900606.jpg!q70.jpg","num":1,"pid":45,"price":2999,"pscid":39,"selected":0,"sellerid":1,"subhead":"高清双摄，就是清晰！2000+1600万高清摄像头，6GB大内存+高通骁龙835处理器，性能怪兽！","title":"一加手机5 (A5000) 6GB+64GB 月岩灰 全网通 双卡双待 移动联通电信4G手机"}] * sellerName : 商家1 * sellerid : 1 */ private String sellerName; private String sellerid; private List<ListBean> list; private boolean check; public boolean isCheck() { return check; } public void setCheck(boolean check) { this.check = check; } 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 : 22.9 * createtime : 2017-10-14T21:48:08 * detailUrl : https://item.m.jd.com/product/2542855.html?utm_source=androidapp&utm_medium=appshare&utm_campaign=t_335139774&utm_term=QQfriends * images : https://m.360buyimg.com/n0/jfs/t1930/284/2865629620/390243/e3ade9c4/56f0a08fNbd3a1235.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2137/336/2802996626/155915/e5e90d7a/56f0a09cN33e01bd0.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t1882/31/2772215910/389956/c8dbf370/56f0a0a2Na0c86ea6.jpg!q70.jpg|https://m.360buyimg.com/n0/jfs/t2620/166/2703833710/312660/531aa913/57709035N33857877.jpg!q70.jpg * num : 1 * pid : 24 * price : 288.0 * pscid : 2 * selected : 0 * sellerid : 1 * subhead : 三只松鼠零食特惠，专区满99减50，满199减100，火速抢购》 * title : 三只松鼠 坚果炒货 零食奶油味 碧根果225g/袋 */ 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; private int cou; public int getCou() { return cou; } public void setCou(int cou) { this.cou = cou; } private boolean check; public boolean isCheck() { return check; } public void setCheck(boolean check) { this.check = check; } 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; } } }}2public class CountAndPrice { private int count ; private int price; public int getCount() { return count; } public void setCount(int count) { this.count = count; } public int getPrice() { return price; } public void setPrice(int price) { this.price = price; }}3public class MessgeEvent { private boolean check; public boolean isCheck() { return check; } public void setCheck(boolean check) { this.check = check; }}4public class Tianjia { /** * msg : 加购成功 * code : 0 */ private String msg; private String code; 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; }}5public class XQBean { /** * msg : * seller : {"description":"我是商家2","icon":"http://120.27.23.105/images/icon.png","name":"商家2","productNums":999,"score":5,"sellerid":2} * code : 0 * data : {"bargainPrice":111.99,"createtime":"2017-10-14T21:48:08","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","itemtype":2,"pid":9,"price":78.99,"pscid":1,"salenum":2356,"sellerid":2,"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"} */ private String msg; private SellerBean seller; private String code; private DataBean data; public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } public SellerBean getSeller() { return seller; } public void setSeller(SellerBean seller) { this.seller = seller; } public String getCode() { return code; } public void setCode(String code) { this.code = code; } public DataBean getData() { return data; } public void setData(DataBean data) { this.data = data; } public static class SellerBean { /** * description : 我是商家2 * icon : http://120.27.23.105/images/icon.png * name : 商家2 * productNums : 999 * score : 5.0 * sellerid : 2 */ private String description; private String icon; private String name; private int productNums; private double score; private int sellerid; public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } public String getIcon() { return icon; } public void setIcon(String icon) { this.icon = icon; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getProductNums() { return productNums; } public void setProductNums(int productNums) { this.productNums = productNums; } public double getScore() { return score; } public void setScore(double score) { this.score = score; } public int getSellerid() { return sellerid; } public void setSellerid(int sellerid) { this.sellerid = sellerid; } } public static class DataBean { /** * bargainPrice : 111.99 * createtime : 2017-10-14T21:48:08 * 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 * itemtype : 2 * pid : 9 * price : 78.99 * pscid : 1 * salenum : 2356 * sellerid : 2 * 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 */ private double bargainPrice; private String createtime; private String detailUrl; private String images; private int itemtype; private int pid; private double price; private int pscid; private int salenum; 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 getItemtype() { return itemtype; } public void setItemtype(int itemtype) { this.itemtype = itemtype; } 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 getSalenum() { return salenum; } public void setSalenum(int salenum) { this.salenum = salenum; } 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; } }}model
public class CartModel { public void getCart(int uid, String str, final CGSB<CartBean> cgsb){ Flowable<CartBean> flowable = RetrofitHepler.getSerViceAPI().getCart(uid, str); flowable.observeOn(AndroidSchedulers.mainThread()) .subscribeOn(Schedulers.io()) .subscribe(new Consumer<CartBean>() { @Override public void accept(CartBean cartBean) throws Exception { cgsb.chengGong(cartBean); } }); }}2public interface XQjieKou { public void getXQ(int pid, String str, final CGSB<XQBean> cgsb);}3
public class XQModel implements XQjieKou{ @Override public void getXQ(int pid, String str, final CGSB<XQBean>cgsb){ Flowable<XQBean> flowable = RetrofitHepler.getSerViceAPI().getXQ(pid, str); flowable.observeOn(AndroidSchedulers.mainThread()) .subscribeOn(Schedulers.io()) .subscribe(new Consumer<XQBean>() { @Override public void accept(XQBean xqBean) throws Exception { cgsb.chengGong(xqBean); } }); } public void geTJ(int uid,int pid, String str, final CGSB<Tianjia>cgsb){ Flowable<Tianjia> flowable = RetrofitHepler.getSerViceAPI().getMsg(uid, pid, str); flowable.observeOn(AndroidSchedulers.mainThread()) .subscribeOn(Schedulers.io()) .subscribe(new Consumer<Tianjia>() { @Override public void accept(Tianjia tianjia) throws Exception { cgsb.chengGong(tianjia); } }); }}net
public class API { public static String HOST="http://120.27.23.105/product/";}2public interface CGSB<T> { void chengGong(T t);}3public class RetrofitHepler { public static OkHttpClient okHttpClient; public static ServiceAPI serViceAPI; /** * 优先执行 */ static { getOkHttpClient(); } public static OkHttpClient getOkHttpClient(){ if(okHttpClient==null){ synchronized (OkHttpClient.class){ if(okHttpClient==null){ okHttpClient=new OkHttpClient(); } } } return okHttpClient; } public static ServiceAPI getSerViceAPI(){ if(serViceAPI==null){ synchronized (OkHttpClient.class){ if(serViceAPI==null){ serViceAPI=onCreate(ServiceAPI.class,API.HOST); } } } return serViceAPI; } public static <T> T onCreate(Class<T>tClass,String url){ Retrofit retrofit = new Retrofit.Builder() .baseUrl(url) .addConverterFactory(GsonConverterFactory.create()) .client(okHttpClient) .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .build(); return retrofit.create(tClass); } 4
public interface ServiceAPI { @GET("getProductDetail") Flowable<XQBean> getXQ(@Query("pid")int pid,@Query("source")String str); @GET("addCart") Flowable<Tianjia> getMsg(@Query("uid")int uid,@Query("pid")int pid, @Query("source")String str); @GET("getCarts") Flowable<CartBean> getCart(@Query("uid")int uid, @Query("source")String str);}presenterpublic class CartPersenter { private final CartModel cartModel; private ICart iCart; public CartPersenter(ICart iCart) { cartModel = new CartModel(); this.iCart=iCart; } public void getCart(){ cartModel.getCart(3043, "android", new CGSB<CartBean>() { @Override public void chengGong(CartBean cartBean) { List<CartBean.DataBean> grouplist = cartBean.getData(); List<List<CartBean.DataBean.ListBean>> childlist=new ArrayList<>(); for (int i = 0; i <grouplist.size() ; i++) { CartBean.DataBean dataBean = grouplist.get(i); List<CartBean.DataBean.ListBean> list = dataBean.getList(); childlist.add(list); } iCart.showlist(grouplist,childlist); } }); }}2public class XQPersenter { private final XQModel xqModel; private Iview iview; public XQPersenter(Iview iview) { xqModel = new XQModel(); this.iview=iview; } public void getXQ(){ xqModel.getXQ(12, "android", new CGSB<XQBean>() { @Override public void chengGong(XQBean xqBean) { iview.showBean(xqBean); } }); } public void getTJ(){ xqModel.geTJ(3043, 12, "android", new CGSB<Tianjia>() { @Override public void chengGong(Tianjia tianjia) { iview.showStr(tianjia.getMsg()); } }); }}viewpublic class Main2Activity extends AppCompatActivity implements ICart { private ExpandableListView mElv; private CheckBox mQuanxuan; /** * 总价：0.0 */ private TextView mZongjia; /** * 共0件商品 */ private TextView mTvCount; private MyExpandableAdapter myExpandableAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main2); initView(); new CartPersenter(this).getCart(); EventBus.getDefault().register(this); mQuanxuan.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { myExpandableAdapter.qx(mQuanxuan.isChecked()); } }); } @Override public void showlist(List<CartBean.DataBean> grouplist, List<List<CartBean.DataBean.ListBean>> childlist) { myExpandableAdapter = new MyExpandableAdapter(grouplist, this,childlist); mElv.setAdapter(myExpandableAdapter); for (int i = 0; i <grouplist.size() ; i++) { mElv.expandGroup(i); } } private void initView() { mElv = (ExpandableListView) findViewById(R.id.elv); mQuanxuan = (CheckBox) findViewById(R.id.quanxuan); mZongjia = (TextView) findViewById(R.id.zongjia); mTvCount = (TextView) findViewById(R.id.tv_count); } //接收传过来的值 @Subscribe public void onPriceAndCount(CountAndPrice cp){ mZongjia.setText("共"+cp.getCount()+"件商品"); mTvCount.setText("总计："+cp.getPrice()); } //接收传过来的值 @Subscribe public void onPriceAndCount(MessgeEvent event){ //改变全选的状态 mQuanxuan.setChecked(event.isCheck()); } @Override protected void onDestroy() { super.onDestroy(); EventBus.getDefault().unregister(this); }}2public class MainActivity extends AppCompatActivity implements View.OnClickListener ,Iview{ private SimpleDraweeView mXqsdv; private TextView mTvtitle; /** * 跳转到购物车 */ private Button mTiaozhuan; /** * 添加到购物车 */ private Button mTianjia; private XQPersenter xqPersenter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); xqPersenter = new XQPersenter(this); xqPersenter.getXQ(); } private void initView() { mXqsdv = (SimpleDraweeView) findViewById(R.id.xqsdv); mTvtitle = (TextView) findViewById(R.id.tvtitle); mTiaozhuan = (Button) findViewById(R.id.tiaozhuan); mTiaozhuan.setOnClickListener(this); mTianjia = (Button) findViewById(R.id.tianjia); mTianjia.setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { default: break; case R.id.tiaozhuan: startActivity(new Intent(this,Main2Activity.class)); break; case R.id.tianjia: xqPersenter.getTJ(); break; } } @Override public void showBean(Object o) { XQBean xqBean= (XQBean) o; XQBean.DataBean data = xqBean.getData(); String s = data.getImages().split("\\|")[0]; Uri uri=Uri.parse(s); mXqsdv.setImageURI(uri); mTvtitle.setText(data.getTitle()+"\n"+data.getPrice()); } @Override public void showStr(String s) { Toast.makeText(this, s, Toast.LENGTH_SHORT).show(); }}3public class MyAPP extends Application { @Override public void onCreate() { super.onCreate(); Fresco.initialize(this); }}4
public interface ICart { void showlist( List<CartBean.DataBean> grouplist, List<List<CartBean.DataBean.ListBean>> childlist);}5public interface Iview<T> { void showBean(T t); void showStr(String s);}drawable
<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android"> <corners android:radius="200dp"></corners> <stroke android:color="@color/colorPrimaryDark" android:width="1dp"></stroke></shape>
layout<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" 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.baiwei.shenxuesong.shenxuesong1219.view.MainActivity"> <com.facebook.drawee.view.SimpleDraweeView android:layout_width="300dp" android:id="@+id/xqsdv" android:layout_gravity="center" android:layout_height="300dp" /> <TextView android:id="@+id/tvtitle" android:layout_width="match_parent" android:layout_height="wrap_content" /> <LinearLayout android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <Button android:id="@+id/tiaozhuan" android:layout_weight="1" android:text="跳转到购物车" android:layout_width="match_parent" android:layout_height="wrap_content" /> <Button android:id="@+id/tianjia" android:layout_weight="1" android:text="添加到购物车" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout></LinearLayout>
2<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.baiwei.shenxuesong.shenxuesong1219.view.Main2Activity"> <ExpandableListView android:id="@+id/elv" android:layout_weight="1" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <LinearLayout android:layout_weight="9" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="match_parent"> <CheckBox android:id="@+id/quanxuan" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:text="全选" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <LinearLayout android:layout_marginLeft="50dp" android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content"> <TextView android:id="@+id/zongjia" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="总价：0.0" /> <TextView android:text="共0件商品" android:id="@+id/tv_count" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout> <TextView android:text="去结算" android:background="#FFD82020" android:layout_marginLeft="100dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout></LinearLayout>3
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/title" android:layout_marginLeft="20dp" android:layout_width="match_parent" android:layout_height="wrap_content" /> <LinearLayout android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content"> <CheckBox android:layout_marginLeft="20dp" android:gravity="center_vertical" android:id="@+id/gouxuan_child" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <com.facebook.drawee.view.SimpleDraweeView android:gravity="center_vertical" android:id="@+id/title_img" android:layout_width="50dp" android:layout_height="50dp" /> <LinearLayout android:orientation="vertical" android:layout_marginLeft="30dp" android:layout_width="wrap_content" android:layout_height="wrap_content"> <TextView android:id="@+id/price" android:layout_marginLeft="10dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/yanse" android:layout_marginLeft="10dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <LinearLayout android:layout_marginLeft="100dp" android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content"> <ImageView android:id="@+id/jian" android:layout_width="20dp" android:layout_height="20dp" android:src="@drawable/shopcart_add_red" /> <TextView android:id="@+id/tv_num" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="5dp" android:background="@drawable/ite" android:paddingBottom="2dp" android:paddingLeft="20dp" android:paddingRight="20dp" android:paddingTop="2dp" android:text="1" /> <ImageView android:id="@+id/jia" android:layout_width="20dp" android:layout_height="20dp" android:layout_marginLeft="5dp" android:src="@drawable/shopcart_minus_red" /> </LinearLayout> </LinearLayout> <ImageView android:id="@+id/del" android:layout_marginLeft="20dp" android:background="@drawable/a" android:layout_width="32dp" android:layout_height="29dp" /> </LinearLayout></LinearLayout>
4<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="match_parent"> <CheckBox android:id="@+id/gx_group" android:focusable="false" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/tv_group" android:layout_width="wrap_content" android:layout_height="wrap_content" /></LinearLayout>
依赖compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4'//Retrofit2所需要的包 compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4'//ConverterFactory的Gson依赖包 compile 'com.squareup.retrofit2:converter-scalars:2.0.0-beta4'//ConverterFactory的String依赖包 compile 'io.reactivex.rxjava2:rxjava:2.1.3' compile 'io.reactivex.rxjava2:rxandroid:2.0.1' compile 'com.squareup.retrofit2:adapter-rxjava2:2.3.0' compile 'de.greenrobot:eventbus:3.0.0-beta1' compile 'com.facebook.fresco:fresco:0.11.0'
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