电商小项目

}
Basefragment
package com.example.zhoermoni.fragment;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public abstract class BaseFragment extends Fragment {
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(getLayoutId(),container,false);
}

@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {super.onViewCreated(view, savedInstanceState);initView(view);
}protected abstract int getLayoutId();protected abstract void initView(View view);protected abstract void initData();

}

分类（尽量调用一个新的接口）xml
分类RequestCallback
package com.example.zhoermoni.net;

import com.example.zhoermoni.entily.Product;
import com.example.zhoermoni.entily.User;

public interface RequestCallback {
void onFailUre(String msg);
void onSuccessUser(User user);
void onSuccessProduct(Product product);
void onSuccessMsg(String msg);
}
分类OkhttpCallback一样
分类契约类
package com.example.zhoermoni.contract;

import com.example.zhoermoni.entily.Product;
import com.example.zhoermoni.entily.User;
import com.example.zhoermoni.net.RequestCallback;

import java.util.HashMap;

public interface IShowCallback {
public abstract class IShowPresenter{
public abstract void user();
public abstract void product(HashMapparams);
}
interface IShowModel{
void user(RequestCallback callback);
void product(HashMapparams,RequestCallback callback);
}
interface IShowView{
void onFailUre(String msg);
void onSuccessUser(User user);
void onSuccessProduct(Product product);
void onSuccessMsg(String msg);
}
}
分类在model层解析
package com.example.zhoermoni.model;

import android.os.Handler;
import android.text.TextUtils;

import com.example.zhoermoni.api.UserApi;
import com.example.zhoermoni.contract.IShowCallback;
import com.example.zhoermoni.entily.Product;
import com.example.zhoermoni.entily.User;
import com.example.zhoermoni.net.OkhttpCallback;
import com.example.zhoermoni.net.RequestCallback;
import com.example.zhoermoni.utiles.OkHttpUtiley;
import com.google.gson.Gson;

import java.util.HashMap;

public class UserModel implements IShowCallback.IShowModel {
private Handler handler=new Handler();
@Override
public void user(final RequestCallback callback) {
OkHttpUtiley.getmInstance().doPost(UserApi.PRODUCT_LEFT, null, new OkhttpCallback() {
@Override
public void onFailUre(String msg) {
if (callback!=null){
handler.post(new Runnable() {
@Override
public void run() {
callback.onFailUre(“网络有误，请稍后再试”);
}
});
}
}

        @Overridepublic void onSuccess(String result) {final User user = new Gson().fromJson(result, User.class);if (!TextUtils.isEmpty(result)){if (callback!=null){handler.post(new Runnable() {@Overridepublic void run() {callback.onSuccessUser(user);}});}}}});
}@Override
public void product(HashMap params, final RequestCallback callback) {OkHttpUtiley.getmInstance().doPost(UserApi.PRODUCE_RIGHT, params, new OkhttpCallback() {@Overridepublic void onFailUre(String msg) {if (callback!=null){handler.post(new Runnable() {@Overridepublic void run() {callback.onFailUre("网络异常");}});}}@Overridepublic void onSuccess(String result) {final Product product = new Gson().fromJson(result, Product.class);if (!TextUtils.isEmpty(result)){if (callback!=null){handler.post(new Runnable() {@Overridepublic void run() {callback.onSuccessProduct(product);}});}}}});
}

}
分类json解析
侧面
package com.example.zhoermoni.entily;

import java.util.List;

public class User {
private String msg;
private String code;
private List data;

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;
}public List getData() {return data;
}public void setData(List data) {this.data = data;
}public static class DataBean {private int cid;private String name;public int getCid() {return cid;}public void setCid(int cid) {this.cid = cid;}public String getName() {return name;}public void setName(String name) {this.name = name;}
}

}
分类主页面
package com.example.zhoermoni.entily;

import java.util.List;

public class Product {
private String msg;
private String code;
private List data;

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;
}public List getData() {return data;
}public void setData(List data) {this.data = data;
}public class DataBean {private String name;private String pcid;private List list;public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPcid() {return pcid;}public void setPcid(String pcid) {this.pcid = pcid;}public List getList() {return list;}public void setList(List list) {this.list = list;}public class ListBean {private String icon;private String name;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;}}
}

}
分类适配器
侧面
package com.example.dierzzk190107jjt.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.example.dierzzk190107jjt.R;
import com.example.dierzzk190107jjt.entity.User;

import java.util.List;

public class UserAdapter extends RecyclerView.Adapter {
private Context context;
private Listlist;

public UserAdapter(Context context, List list) {this.context = context;this.list = list;
}@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {View view=LayoutInflater.from(context).inflate(R.layout.cemian,viewGroup,false);ViewHolder viewHolder=new ViewHolder(view);return viewHolder;
}@Override
public void onBindViewHolder(@NonNull ViewHolder viewHolder, int i) {final User.Data data = list.get(i);viewHolder.title.setText(data.getName());viewHolder.itemView.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {if (itemClickListener!=null){itemClickListener.click(data.getCid()+"");}}});
}@Override
public int getItemCount() {return list==null?0:list.size();
}
public class ViewHolder extends RecyclerView.ViewHolder{private TextView title;public ViewHolder(@NonNull View itemView) {super(itemView);title=itemView.findViewById(R.id.title);}
}
private ItemClickListener itemClickListener;
public void setItemClickListenert(ItemClickListener itemClickListenert){this.itemClickListener=itemClickListenert;
}
public interface ItemClickListener{void click(String cid);
}

}
分类主页面主适配器
package com.example.dierzzk190107jjt.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.example.dierzzk190107jjt.R;
import com.example.dierzzk190107jjt.entity.Prodocf;

import java.util.List;

public class ProdocfAdapter extends RecyclerView.Adapter{
private Context context;
private List list;

public ProdocfAdapter(Context context, List list) {this.context = context;this.list = list;
}@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {View view=LayoutInflater.from(context).inflate(R.layout.zhu,viewGroup,false);ViewHolder viewHolder=new ViewHolder(view);return viewHolder;
}@Override
public void onBindViewHolder(@NonNull ViewHolder viewHolder, int i) {Prodocf.Data data = list.get(i);viewHolder.title.setText(data.getName());List list = data.getList();viewHolder.rec.setLayoutManager(new GridLayoutManager(context,3));viewHolder.rec.setAdapter(new ZuiAdapter(context, list));
}@Override
public int getItemCount() {return list==null?0:list.size();
}public class ViewHolder extends RecyclerView.ViewHolder{private TextView title;private RecyclerView rec;public ViewHolder(@NonNull View itemView) {super(itemView);title=itemView.findViewById(R.id.title);rec=itemView.findViewById(R.id.rec);}
}

}
子适配器
package com.example.dierzzk190107jjt.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.example.dierzzk190107jjt.R;
import com.example.dierzzk190107jjt.entity.Prodocf;

import java.util.List;

public class ZuiAdapter extends RecyclerView.Adapter {
private Context context;
private Listlist;
public ZuiAdapter(Context context, List list) {
this.context=context;
this.list=list;
}

@NonNull
@Override
public VIewHolder1 onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {View view=LayoutInflater.from(context).inflate(R.layout.zuiho,viewGroup,false);VIewHolder1 vIewHolder1=new VIewHolder1(view);return vIewHolder1;
}@Override
public void onBindViewHolder(@NonNull VIewHolder1 vIewHolder, int i) {Prodocf.Data.ListBean listBean = list.get(i);Glide.with(context).load(listBean.getIcon()).into(vIewHolder.img);vIewHolder.title.setText(listBean.getName());
}@Override
public int getItemCount() {return list.size();
}
public class VIewHolder1 extends RecyclerView.ViewHolder{private ImageView img;private TextView title;public VIewHolder1(@NonNull View itemView) {super(itemView);title=itemView.findViewById(R.id.title);img=itemView.findViewById(R.id.img);}
}

}
分页Activity
package com.example.dierzzk190107jjt.fragment;

import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;

import com.example.dierzzk190107jjt.R;
import com.example.dierzzk190107jjt.adapter.ProdocfAdapter;
import com.example.dierzzk190107jjt.adapter.UserAdapter;
import com.example.dierzzk190107jjt.contract.IShowCallback;
import com.example.dierzzk190107jjt.entity.Prodocf;
import com.example.dierzzk190107jjt.entity.User;
import com.example.dierzzk190107jjt.net.OkHttpUtily;
import com.example.dierzzk190107jjt.presenter.UserPresenter;

import java.util.HashMap;
import java.util.List;

public class FragmentTwo extends BaseFragment implements IShowCallback.IShowView {

private RecyclerView cemian;
private UserAdapter userAdapter;
private UserPresenter presenter;
private String cid="1";
private RecyclerView zhu;
private ProdocfAdapter prodocfAdapter;@Override
protected int getLayout() {return R.layout.fragmenttwo;
}
@Override
protected void initView(View view) {cemian = view.findViewById(R.id.cemian);zhu = view.findViewById(R.id.zhu);presenter = new UserPresenter(this);presenter.user();HashMap params=new HashMap<>();params.put("cid",cid);presenter.prodocf(params);cemian.setLayoutManager(new LinearLayoutManager(getActivity()));zhu.setLayoutManager(new LinearLayoutManager(getActivity()));}@Override
protected void initData() {}@Override
public void onFailUer(String msg) {}@Override
public void onSuccessUser(User user) {List data = user.getData();userAdapter=new UserAdapter(getActivity(),data);cemian.setAdapter(userAdapter);userAdapter.setItemClickListenert(new UserAdapter.ItemClickListener() {@Overridepublic void click(String cid) {HashMap params=new HashMap<>();params.put("cid",cid);presenter.prodocf(params);}});
}@Override
public void onSuccessProdocf(Prodocf prodocf) {List data1 = prodocf.getData();prodocfAdapter = new ProdocfAdapter(getActivity(), data1);zhu.setAdapter(prodocfAdapter);
}@Override
public void onSuccessMsg(String msg) {}@Override
public void onDestroy() {super.onDestroy();OkHttpUtily.getmInstaser().okhttpcsas();presenter.dester();
}

}
购物车搜索xml

android:layout_width=“match_parent”
android:layout_height=“match_parent”
android:id="@+id/xr">

搜索的OKHTTP
package com.example.gwc.net;

import android.os.Handler;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import okhttp3.logging.HttpLoggingInterceptor;

public class OkHttpUtiles {
private Handler handler=new Handler();
private OkHttpClient okHttpClient;
private static OkHttpUtiles mIncvcnmxz;
public OkHttpUtiles(){
HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
okHttpClient=new OkHttpClient.Builder()
.addInterceptor(loggingInterceptor)
.readTimeout(5,TimeUnit.SECONDS)
.writeTimeout(5,TimeUnit.SECONDS)
.connectTimeout(5,TimeUnit.SECONDS)
.build();
}
public void doPost(String auiUre, HashMapparams, final OkHttpCallback okHttpCallback){
FormBody.Builder formBody = new FormBody.Builder();
if (params!=null){
for (Map.Entryp:params.entrySet()){
formBody.add(p.getKey(),p.getValue());
}
}
final Request request = new Request.Builder().url(auiUre).post(formBody.build()).build();
okHttpClient.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
if (okHttpCallback!=null){
handler.post(new Runnable() {
@Override
public void run() {
okHttpCallback.onFaliUre(“网络异常”);
}
});
}
}

        @Overridepublic void onResponse(Call call, Response response) throws IOException {final String result = response.body().string();int code = response.code();if (200==code){if (okHttpCallback!=null){handler.post(new Runnable() {@Overridepublic void run() {okHttpCallback.onSuccess(result);}});}}}});
}
public static OkHttpUtiles getmIncvcnmxz(){if (mIncvcnmxz==null){synchronized (OkHttpUtiles.class){if (mIncvcnmxz==null){mIncvcnmxz=new OkHttpUtiles();}}}return mIncvcnmxz;
}
public void gczvbxczx(){if (okHttpClient!=null){okHttpClient.dispatcher().cancelAll();}
}

}
搜索的Model
package com.example.gwc.model;

import android.text.TextUtils;

import com.example.gwc.api.UserApi;
import com.example.gwc.contract.IShowContract;
import com.example.gwc.net.OkHttpCallback;
import com.example.gwc.net.OkHttpUtiles;
import com.example.gwc.net.RequestCallback;

import java.util.HashMap;

public class IShowModel implements IShowContract.IShowModel {
@Override
public void ShowModel(HashMap params, final RequestCallback callback) {
OkHttpUtiles.getmIncvcnmxz().doPost(UserApi.USER_SHOW, params, new OkHttpCallback() {
@Override
public void onFaliUre(String msg) {
if(callback!=null){
callback.onFaliUre(msg);
}
}

        @Overridepublic void onSuccess(String result) {if (!TextUtils.isEmpty(result)){if (callback!=null){callback.onSuccess(result);}}}});
}@Override
public void SosuoModel(HashMap params, final RequestCallback callback) {OkHttpUtiles.getmIncvcnmxz().doPost(UserApi.USER_USER, params, new OkHttpCallback() {@Overridepublic void onFaliUre(String msg) {if(callback!=null){callback.onFaliUre(msg);}}@Overridepublic void onSuccess(String result) {if (!TextUtils.isEmpty(result)){if (callback!=null){callback.onSuccess(result);}}}});
}@Override
public void AddModel(HashMap params, final RequestCallback callback) {OkHttpUtiles.getmIncvcnmxz().doPost(UserApi.USER_ADDSHOP, params, new OkHttpCallback() {@Overridepublic void onFaliUre(String msg) {if(callback!=null){callback.onFaliUre(msg);}}@Overridepublic void onSuccess(String result) {if (!TextUtils.isEmpty(result)){if (callback!=null){callback.onSuccess(result);}}}});
}

}
搜索preserve
package com.example.gwc.preserve;

import com.example.gwc.contract.IShowContract;
import com.example.gwc.model.IShowModel;
import com.example.gwc.net.RequestCallback;

import java.util.HashMap;

public class IShowPreserve extends IShowContract.IShowPreserve {
private IShowModel iShowModel;
private IShowContract.IShowView iShowView;

public IShowPreserve( IShowContract.IShowView iShowView) {this.iShowModel = new IShowModel();this.iShowView = iShowView;
}@Override
public void ShowPreserve(HashMap params) {if (iShowModel!=null){iShowModel.ShowModel(params, new RequestCallback() {@Overridepublic void onFaliUre(String msg) {if (iShowView!=null){iShowView.onFaliUre(msg);}}@Overridepublic void onSuccess(String result) {if (iShowView!=null){iShowView.onSuccess(result);}}});}
}@Override
public void SosuoPreserve(HashMap params) {if (iShowModel!=null){iShowModel.SosuoModel(params, new RequestCallback() {@Overridepublic void onFaliUre(String msg) {if (iShowView!=null){iShowView.onFaliUre(msg);}}@Overridepublic void onSuccess(String result) {if (iShowView!=null){iShowView.onSuccess(result);}}});}
}@Override
public void AddPreserve(HashMap params) {if (iShowModel!=null){iShowModel.AddModel(params, new RequestCallback() {@Overridepublic void onFaliUre(String msg) {if (iShowView!=null){iShowView.onFaliUre(msg);}}@Overridepublic void onSuccess(String result) {if (iShowView!=null){iShowView.onSuccess(result);}}});}
}
private void okhttcallback(){if (iShowView!=null){iShowView=null;}
}

}
购物车展示json
package com.example.gwc.entity;

import java.util.List;

public class Sosuo {
public String code;
public String msg;
public List data;
public class DataBase{
public String sellerName;
public String sellerid;
public boolean ischeckBox;
public List list;
public class Product{
public String title;
public String images;
public double price;
public boolean isproductcheckBox;
public String pid;
public int pos;
public int productNum;
}
}
}
搜索的适配器
package com.example.gwc.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.example.gwc.R;
import com.example.gwc.entity.Show;

import java.util.ArrayList;
import java.util.List;

public class ShowAdapter extends RecyclerView.Adapter{
private Context context;
private List show;

public ShowAdapter(Context context) {this.context = context;this.show = new ArrayList<>();
}public void setShow(List show) {if (show!=null){this.show = show;}notifyDataSetChanged();
}@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {View view=LayoutInflater.from(context).inflate(R.layout.sosuo_shuju,viewGroup,false);ViewHolder viewHolder=new ViewHolder(view);return viewHolder;
}@Override
public void onBindViewHolder(@NonNull ViewHolder viewHolder, final int i) {Show.DataBean dataBean = show.get(i);String[] split = dataBean.getImages().split("!");Glide.with(context).load(split[0]).into(viewHolder.img);viewHolder.title.setText(dataBean.getTitle());viewHolder.price.setText("￥："+dataBean.getPrice());viewHolder.gwc.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {if (getpidllback!=null){getpidllback.getpid(show.get(i).getPid());}}});
}@Override
public int getItemCount() {return show==null?0:show.size();
}public class ViewHolder extends RecyclerView.ViewHolder{private ImageView img;private TextView title,price;private Button gwc;public ViewHolder(@NonNull View itemView) {super(itemView);this.img=itemView.findViewById(R.id.img);this.title=itemView.findViewById(R.id.title);this.price=itemView.findViewById(R.id.price);this.gwc=itemView.findViewById(R.id.gwc);}
}
private getpidCllback getpidllback;public void setGetpidllback(getpidCllback getpidllback) {this.getpidllback = getpidllback;
}public interface getpidCllback{void getpid(int pid);
}

}
搜索的fragment
package com.example.gwc.fragment;

import android.support.v7.widget.LinearLayoutManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.example.gwc.R;
import com.example.gwc.adapter.ShowAdapter;
import com.example.gwc.contract.IShowContract;
import com.example.gwc.entity.AddShop;
import com.example.gwc.entity.Show;
import com.example.gwc.preserve.IShowPreserve;
import com.google.gson.Gson;
import com.jcodecraeer.xrecyclerview.XRecyclerView;

import java.util.HashMap;

public class FragmentSosuo extends BaseFragment implements IShowContract.IShowView {

private EditText name;
private Button sos;
private IShowPreserve iShowPreserve;
private ShowAdapter showAdapter;
private int page=1;
private XRecyclerView xr;@Override
protected int getfragment() {return R.layout.fragmentsosuo;
}@Override
protected void initView(View view) {name = view.findViewById(R.id.name);sos = view.findViewById(R.id.sos);xr = view.findViewById(R.id.xr);xr.setLayoutManager(new LinearLayoutManager(getActivity()));iShowPreserve = new IShowPreserve(this);showAdapter = new ShowAdapter(getActivity());sos.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {String title = name.getText().toString();HashMapparams=new HashMap<>();params.put("keywords",title);params.put("page",page+"");iShowPreserve.ShowPreserve(params);}});showAdapter.setGetpidllback(new ShowAdapter.getpidCllback() {@Overridepublic void getpid(int pid) {HashMapparams=new HashMap<>();params.put("uid","601");params.put("pid",pid+"");iShowPreserve.AddPreserve(params);}});xr.setAdapter(showAdapter);
}@Override
protected void initData() {}@Override
public void onFaliUre(String msg) {Toast.makeText(getActivity(),msg,Toast.LENGTH_SHORT).show();
}@Override
public void onSuccess(String result) {Show show = new Gson().fromJson(result, Show.class);Toast.makeText(getActivity(),show.getMsg(),Toast.LENGTH_SHORT).show();showAdapter.setShow(show.getData());
}@Override
public void onSuccessAddshow(String result) {AddShop addShop = new Gson().fromJson(result, AddShop.class);Toast.makeText(getActivity(),addShop.getMsg(),Toast.LENGTH_SHORT).show();
}

}
购物车第一级适配器
package com.example.gwc.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.TextView;

import com.example.gwc.R;
import com.example.gwc.entity.Sosuo;
import com.example.gwc.fragmentcallback.BufenCallback;
import com.example.gwc.fragmentcallback.CartUlCallback;
import com.jcodecraeer.xrecyclerview.XRecyclerView;

import java.util.ArrayList;
import java.util.List;

public class GwcAdapter_Yi extends RecyclerView.Adapterimplements BufenCallback {
private Context context;
private List show;
private GwcAdapter_Er gwcAdapter_er;
private CartUlCallback cartUlCallback;

public GwcAdapter_Yi(Context context,CartUlCallback cartUlCallback) {this.context = context;this.show = new ArrayList<>();this.cartUlCallback=cartUlCallback;
}public void setShow(List show) {if (show!=null){this.show = show;}notifyDataSetChanged();
}
public void addShow(List show) {if (show!=null){show.addAll(show);}notifyDataSetChanged();}@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {View view=LayoutInflater.from(context).inflate(R.layout.gwc_zhuyi,viewGroup,false);ViewHolder viewHolder=new ViewHolder(view);return viewHolder;
}@Override
public void onBindViewHolder(@NonNull final ViewHolder viewHolder, final int i) {double totprice=0;for (Sosuo.DataBase.Product product : show.get(i).list) {totprice+=product.price*product.productNum;}for (Sosuo.DataBase.Product product : show.get(i).list) {product.pos=i;}viewHolder.xiao.setText("￥："+totprice);Sosuo.DataBase dataBase = show.get(i);viewHolder.name.setText(dataBase.sellerName);viewHolder.checkBox.setChecked(show.get(i).ischeckBox);if (dataBase.ischeckBox){viewHolder.checkBox.setChecked(true);}else {viewHolder.checkBox.setChecked(false);}viewHolder.checkBox.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {show.get(i).ischeckBox=viewHolder.checkBox.isChecked();for (Sosuo.DataBase.Product product : show.get(i).list) {product.isproductcheckBox=show.get(i).ischeckBox;}notifyDataSetChanged();if (cartUlCallback!=null){cartUlCallback.notifyCall();}}});viewHolder.xr.setLayoutManager(new LinearLayoutManager(context));gwcAdapter_er = new GwcAdapter_Er(context, show.get(i).list);gwcAdapter_er.setBufenCallback(this);viewHolder.xr.setAdapter(gwcAdapter_er);
}@Override
public int getItemCount() {return show.size();
}@Override
public void notifyCartItem(boolean isChecked, int postion) {show.get(postion).ischeckBox=isChecked;notifyDataSetChanged();if (cartUlCallback!=null){cartUlCallback.notifyCall();}
}@Override
public void notifyNum() {if (cartUlCallback!=null){cartUlCallback.notifyCall();}
}public class ViewHolder extends RecyclerView.ViewHolder{private TextView name,xiao;private CheckBox checkBox;private XRecyclerView xr;public ViewHolder(@NonNull View itemView) {super(itemView);this.checkBox=itemView.findViewById(R.id.checkBox);this.name=itemView.findViewById(R.id.name);this.xr=itemView.findViewById(R.id.xr);this.xiao=itemView.findViewById(R.id.xiao);}
}

}

购物车第二级适配器
package com.example.gwc.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.example.gwc.R;
import com.example.gwc.entity.Sosuo;
import com.example.gwc.fragmentcallback.BufenCallback;
import com.example.gwc.view.MyView;

import java.util.List;

public class GwcAdapter_Er extends RecyclerView.Adapter{
private Context context;
private List list;
private BufenCallback bufenCallback;

public void setBufenCallback(BufenCallback bufenCallback) {this.bufenCallback = bufenCallback;
}public GwcAdapter_Er(Context context, List list) {this.context = context;this.list = list;
}@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {View view=LayoutInflater.from(context).inflate(R.layout.gwc_er,viewGroup,false);ViewHolder viewHolder=new ViewHolder(view);return viewHolder;
}@Override
public void onBindViewHolder(@NonNull final ViewHolder viewHolder, final int i) {final Sosuo.DataBase.Product product = list.get(i);String[] split = product.images.split("!");Glide.with(context).load(split[0]).into(viewHolder.img);viewHolder.title.setText(product.title);viewHolder.myview.setNum(list.get(i).productNum);viewHolder.checkBox.setChecked(list.get(i).isproductcheckBox);viewHolder.checkBox.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {list.get(i).isproductcheckBox=viewHolder.checkBox.isChecked();for (Sosuo.DataBase.Product product1 : list) {if (!product1.isproductcheckBox){if (bufenCallback!=null){bufenCallback.notifyCartItem(false,product1.pos);}return;}if (bufenCallback!=null){bufenCallback.notifyCartItem(true,product1.pos);}}}});viewHolder.price.setText("￥："+product.price);viewHolder.myview.setGetnumcallback(new MyView.getNumcallback() {@Overridepublic void getnum(int nums) {list.get(i).productNum=nums;if (bufenCallback!=null){bufenCallback.notifyNum();}}});
}@Override
public int getItemCount() {return list.size();
}public class ViewHolder extends RecyclerView.ViewHolder{private ImageView img;private CheckBox checkBox;private TextView title,price;private MyView myview;public ViewHolder(@NonNull View itemView) {super(itemView);this.checkBox=itemView.findViewById(R.id.checkBox);this.img=itemView.findViewById(R.id.img);this.title=itemView.findViewById(R.id.title);this.price=itemView.findViewById(R.id.price);this.myview=itemView.findViewById(R.id.myviwe);}
}

}
购物车activity
package com.example.gwc.fragment;

import android.support.v7.widget.LinearLayoutManager;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.TextView;
import android.widget.Toast;

import com.example.gwc.R;
import com.example.gwc.adapter.GwcAdapter_Yi;
import com.example.gwc.contract.IShowContract;
import com.example.gwc.entity.Sosuo;
import com.example.gwc.fragmentcallback.CartUlCallback;
import com.example.gwc.preserve.IShowPreserve;
import com.google.gson.Gson;
import com.jcodecraeer.xrecyclerview.XRecyclerView;

import java.util.HashMap;
import java.util.List;

public class FragmentGwc extends BaseFragment implements IShowContract.IShowView,CartUlCallback {

private XRecyclerView xr;
private CheckBox checkBox;
private TextView zong;
private IShowPreserve iShowPreserve;
private GwcAdapter_Yi gwcAdapter_yi;
private List soso;@Override
protected int getfragment() {return R.layout.fragmentgwc;
}@Override
protected void initView(View view) {xr = view.findViewById(R.id.xr);xr.setLayoutManager(new LinearLayoutManager(getActivity()));xr.setPullRefreshEnabled(true);xr.setLoadingMoreEnabled(true);xr.setLoadingListener(new XRecyclerView.LoadingListener() {@Overridepublic void onRefresh() {HashMapparams=new HashMap<>();params.put("uid","601");iShowPreserve.SosuoPreserve(params);xr.refreshComplete();}@Overridepublic void onLoadMore() {}});checkBox = view.findViewById(R.id.checkBox);zong = view.findViewById(R.id.zong);iShowPreserve = new IShowPreserve(this);gwcAdapter_yi = new GwcAdapter_Yi(getActivity(),this);HashMapparams=new HashMap<>();params.put("uid","601");iShowPreserve.SosuoPreserve(params);checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {if (isChecked){for (Sosuo.DataBase dataBase : soso) {dataBase.ischeckBox=true;for (Sosuo.DataBase.Product product : dataBase.list) {product.isproductcheckBox=true;}}}else {for (Sosuo.DataBase dataBase : soso) {dataBase.ischeckBox=false;for (Sosuo.DataBase.Product product : dataBase.list) {product.isproductcheckBox=false;}}}gwcAdapter_yi.notifyDataSetChanged();getTotalPrice();}});xr.setAdapter(gwcAdapter_yi);
}@Override
protected void initData() {}@Override
public void onFaliUre(String msg) {}@Override
public void onSuccess(String result) {Sosuo sosuo = new Gson().fromJson(result, Sosuo.class);soso=sosuo.data;for (Sosuo.DataBase dataBase : soso) {for (Sosuo.DataBase.Product product : dataBase.list) {product.productNum=1;}}Toast.makeText(getActivity(),sosuo.msg,Toast.LENGTH_SHORT).show();gwcAdapter_yi.setShow(sosuo.data);
}@Override
public void onSuccessAddshow(String result) {}
public void getTotalPrice(){double totalprice=0;for (Sosuo.DataBase dataBase : soso) {for (Sosuo.DataBase.Product product : dataBase.list) {if (product.isproductcheckBox){totalprice+=product.price*product.productNum;}}}zong.setText("￥："+totalprice);
}@Override
public void notifyCall() {getTotalPrice();
}

}
购物车接口
package com.example.gwc.fragmentcallback;

public interface BufenCallback {
选择状态
void notifyCartItem(boolean isChecked,int postion);
一级二级 联动
void notifyNum();
}
package com.example.gwc.fragmentcallback;

public interface CartUlCallback {
总价
void notifyCall();
}

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