Rxjava+Retrofit+MVP实现购物车功能

Rxjava+Retrofit+MVP实现购物车功能

本文实例为大家分享了Rxjava Retrofit实现购物车的具体代码，供大家参考，具体内容如下

效果图：

1.依赖

annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'

compile 'com.jakewharton:butterknife:8.8.1'

compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'

compile 'com.squareup.retrofit2:retrofit:2.3.0'

compile 'com.squareup.retrofit2:converter-gson:2.3.0'

compile 'com.facebook.fresco:fresco:0.12.0'

compile 'com.facebook.fresco:animated-base-support:0.12.0'

compile 'com.facebook.fresco:animated-webp:0.12.0'

compile 'com.facebook.fresco:webpsupport:0.12.0'

compile 'io.reactivex.rxjava2:rxjava:2.1.7'

SRjKrjgC compile 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'

compile 'io.reactivex.rxjava2:rxandroid:2.0.1'

compile 'com.squareup.okhttp3:okhttp:3.9.0'

compile 'com.google.code.gson:gson:2.8.1'

2.布局

1.加减器布局   layout_add_delete

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="horizontal"

android:weightSum="1">

android:id="@+id/txt_delete"

android:layout_width="30dp"

android:layout_height="30dp"

android:text="减"

android:gravity="center"

android:background="#8b948b"/>

android:id="@+id/et_number"

android:layout_marginTop="2dp"

android:layout_width="50dp"

android:layout_height="30dp"

android:background="@drawable/edit"

android:layout_weight="0.00"

android:gravity="center"

android:text="1"/>

android:id="@+id/txt_add"

android:layout_width="30dp"

android:layout_height="30dp"

android:text="加"

android:gravity="center"

android:background="#8b948b"/>

2. 商品详情布局   activity_main

xmlns:fresco="http://schemas.android.com/apk/res-auto"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical">

android:id="@+id/my_image_view"

android:layout_width="match_parent"

android:layout_height="450dp"

fresco:placeholderImage="@mipmap/ic_launcher" />

android:id="@+id/goods_title"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_margin="10dp"

android:text="a啊啊是你的"

android:textSize="20dp" />

android:id="@+id/goods_price"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_margin="10dp"

android:text="￥ 18132"

android:textColor="#dc5f2e"

android:textSize="18dp" />

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_margin="10dp"

android:text="我是商家19"

android:textSize="16dp" />

android:layout_alignParentBottom="true"

android:layout_width="match_parent"

android:layout_height="50dp"

android:orientation="horizontal">

android:id="@+id/btn_addcart"

android:layout_weight="1"

android:layout_width="0dp"

android:layout_height="match_parent"

android:background="#ffc207"

android:text="加入购物车"/>

android:id="@+id/btn_shopping"

android:layout_weight="1"

android:layout_width="0dp"

android:layout_height="match_parent"

android:background="#ff6b06"

android:text="立即购买"/>

3.购物车布局 activity_main2

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical">

android:id="@+id/top_bar"

android:layout_width="match_parent"

android:layout_height="48dp"

android:background="#f7f7f7"

android:orientation="vertical" >

android:layout_width="match_parent"

android:layout_height="48dp"

android:background="@android:color/transparent"

android:orientation="vertical" >

android:id="@+id/back"

android:layout_width="48dp"

android:layout_height="48dp"

android:layout_alignParentLeft="true"

android:layout_gravity="center_vertical"

android:padding="12dp"

android:src="@drawable/back" />

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="16sp" />

android:id="@+id/edit"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentRight="true"

android:layout_marginRight="40dp"

android:gravity="center"

android:minHeight="48dp"

android:text="编辑"

android:textColor="#1a1a1a"

android:textSize="14sp"

android:visibility="visible" />

android:id="@+id/exListView"

android:layout_width="match_parent"

android:layout_height="0dp"

android:layout_weight="1"

android:childIndicator="@null"

android:groupIndicator="@null" >

android:layout_width="match_parent"

android:layout_height="50dp"

android:gravity="center_vertical"

android:orientation="horizontal" >

android:id="@+id/all_chekbox"

android:layout_marginLeft="20dp"

android:layout_width="wrap_content"

android:layout_height="wrap_content" />

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="全选"/>

android:id="@+id/ll_info"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:layout_weight="4"

>

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="vertical"

android:layout_marginRight="20dp"

android:layout_weight="1"

>

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="horizontal"

android:gravity="right"

>

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="5dp"

android:text="合计:"

android:textSize="18sp"

android:textStyle="bold" />

android:id="@+id/total_price"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="￥0.00"

android:textColor="#f23232"

android:textSize="16sp"

android:textStyle="bold" />

android:id="@+id/total_number"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="共有商品:0件"

android:gravity="right"

android:textSize="16sp"

android:textStyle="bold" />

android:id="@+id/tv_go_to_pay"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="3"

android:background="#fd7a05"

android:clickable="true"

android:gravity="center"

android:text="结算"

android:textColor="#FAFAFA"

/>

android:id="@+id/tv_go_to_del"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="3"

android:background="#e2231c"

android:clickable="true"

android:gravity="center"

android:text="删除"

android:textColor="#FAFAFA"

android:visibility="gone"

/>

4.二级列表组级布局 ex_group_item

android:layout_width="match_parent"

android:layout_height="match_parent"

android:background="#cfc3c3"

android:orientation="horizontal">

android:id="@+id/group_checkbox"

android:layout_marginLeft="20dp"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:focusable="false"/>

android:id="@+id/shop_name"

android:layout_marginLeft="20dp"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textSize="16dp" />

5.二级列表子布局  ex_child_item

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:fresco="http://schemas.android.com/apk/res-auto"

android:layout_width="match_parent"

android:layout_height="230dp"

android:orientation="horizontal">

android:id="@+id/child_checkbox"

android:layout_marginTop="50dp"

android:layout_marginLeft="20dp"

android:layout_marginBottom="50dp"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

/>

android:layout_marginLeft="20dp"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:id="@+id/shop_title"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:layout_alignParentStart="true"

android:layout_marginLeft="17dp"

android:layout_marginStart="17dp"

android:text="TextView"

android:layout_alignParentTop="true" />

android:id="@+id/shop_img"

android:layout_width="90dp"

android:layout_height="90dp"

android:layout_marginTop="30dp"

fresco:placeholderImage="@mipmap/ic_launcher"

android:layout_below="@+id/shop_name"

android:layout_alignParentLeft="true"

android:layout_alignParentStart="true"

/>

android:id="@+id/shop_price"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignTop="@+id/shop_img"

android:layout_centerHorizontal="true"

android:layout_marginTop="10dp"

android:text="￥20"

android:textColor="#f23232"/>

android:id="@+id/adv"

android:layout_width="160dp"

android:layout_height="30dp"

android:layout_below="@+id/shop_price"

android:layout_marginTop="30dp"

android:layout_marginLeft="140dp"

app:left_text="-"

app:right_text="+"

app:middle_text="1"

android:focusable="false"

>

android:id="@+id/shop_delete"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentEnd="true"

android:layout_alignParentRight="true"

android:layout_centerVertical="true"

android:visibility="invisible"

android:text="删除" />

3.实体类

1. MessageBean

package com.bwei.gepeng.entity;

public class MessageBean {

private String code;

private T data;

private String msg;

private SellerBean seller;

public String getCode() {

return code;

}

public void setCode(String code) {

this.code = code;

}

public T getData() {

return data;

}

public void setData(T data) {

this.data = 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 static class SellerBean {

/**

* description : 我是商家19

* icon : http://120.27.23.105/images/icon.png

* name : 商家19

* productNums : 999

* score : 5.0

* sellerid : 19

*/

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;

}

}

}

2.GoodsShowBean

package com.bwei.gepeng.entity;

public class GoodsShowBean {

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;

}

@Override

public String toString() {

return "GoodsShowBean{" +

"bargainPrice=" + bargainPrice +

", createtime='" + createtime + '\'' +

", detailUrl='" + detailUrl + '\'' +

", images='" + images + '\'' +

", itemtype=" + itemtype +

", pid=" + pid +

", price=" + price +

", pscid=" + pscid +

", salenum=" + salenum +

", sellerid=" + sellerid +

", subhead='" + subhead + '\'' +

", title='" + title + '\'' +

'}';

}

}

3. CartBean

package com.bwei.gepeng.entity;

import java.util.List;

public class CartBean {

private String sellerName;

private String sellerid;

private List list;

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 getList() {

return list;

}

public void setList(List list) {

this.list = list;

}

public static class ListBean {

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;

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;

}

}

@Override

public String toString() {

return "CartBean{" +

"sellerName='" + sellerName + '\'' +

", sellerid='" + sellerid + '\'' +

", list=" + list +

'}';

}

}

4. GroupBean

package com.bwei.gepeng.entity;

public class GroupBean {

private String sellerName;

private boolean gropuCb;

public GroupBean(String sellerName, boolean gropuCb) {

this.sellerName = sellerName;

this.gropuCb = gropuCb;

}

public String getSellerName() {

return sellerName;

}

public void setSellerName(String sellerName) {

this.sellerName = sellerName;

}

public boolean isGropuCb() {

return gropuCb;

}

public void setGropuCb(boolean gropuCb) {

this.gropuCb = gropuCb;

}

@Override

public String toString() {

return "GroupBean{" +

"sellerName='" + sellerName + '\'' +

", gropuCb=" + gropuCb +

'}';

}

}

5.ChildBean

package com.bwei.gepeng.entity;

public class ChildBean {

private String title;

private String images;

private double price;

private int num;

private boolean childCb;

private boolean btn;

private int pid;

public ChildBean(String title, String images, double price, int num, boolean childCb, boolean btn, int pid) {

this.title = title;

this.images = images;

this.price = price;

this.num = num;

this.childCb = childCb;

this.btn = btn;

this.pid = pid;

}

public int getPid() {

return pid;

}

public void setPid(int pid) {

this.pid = pid;

}

public boolean isBtn() {

return btn;

}

public void setBtn(boolean btn) {

this.btn = btn;

}

public String getTitle() {

return title;

}

public void setTitle(String title) {

this.title = title;

}

public String getImages() {

return images;

}

public void setImages(String images) {

this.images = images;

}

public double getPrice() {

return price;

}

public void setPrice(double price) {

this.price = price;

}

public int getNum() {

return num;

}

public void setNum(int num) {

this.num = num;

}

public boolean isChildCb() {

return childCb;

}

public void setChildCb(boolean childCb) {

this.childCb = childCb;

}

@Override

public String toString() {

return "ChildBean{" +

"title='" + title + '\'' +

", images='" + images + '\'' +

", price=" + price +

", num=" + num +

", childCb=" + childCb +

", btn=" + btn +

", pid=" + pid +

'}';

}

}

4.接口

1.ApiService

package com.bwei.gepeng.http;

import com.bwei.gepeng.entity.CartBean;

import com.bwei.gepeng.entity.GoodsShowBean;

import com.bwei.gepeng.entity.MessageBean;

import java.util.List;

import java.util.Map;

import io.reactivex.Flowable;

import retrofit2.http.GET;

import retrofit2.http.QueryMap;

public interface ApiService {

//查询商品详情75

//http://120.27.23.105/product/getProductDetail?pid=75&source=android

@GET("product/getProductDetail")

Flowable> getNews(@QueryMap Map map);

//查询购物车

//http://120.27.23.105/product/getCarts?uid=3802&source=android

@GET("product/getCarts")

Flowable>> getCart(@QueryMap Map map);

//删除购物车

//http://120.27.23.105/product/getCarts?uid=3802&source=android

@GET("product/deleteCart")

Flowable>> getDel(@QueryMap Map map);

//添加购物车

//http://120.27.23.105/product/addCart?uid=3802&pid=75&source=android

@GET("product/addCart")

Flowable>> getAdd(@QueryMap Map map);

}

2.IView

[java] view plain copy

public interface IView {

void OnSuccess(Object o,String tag);

void OnFailed(Exception e,String tag);

}

3.IPresenter

[java] view plain copy

import java.util.Map;

public interface IPresenter {

void getData(Map map, String tag);

}

4.IModel

[java] view plain copy

import java.util.Map;

public interface IModel {

void getData(Map map,String tag);

}

5.代码

1.自定义View 加减器 AddDeleteView

package com.bwei.gepeng.myview;

import android.content.Context;

import android.content.res.TypedArray;

import android.graphics.Color;

import android.util.AttributeSet;

import android.view.View;

import android.widget.EditText;

import android.widget.LinearLayout;

import android.widget.TextView;

import com.bwei.gepeng.R;

public class AddDeleteView extends LinearLayout {

private OnAddDelClickListener listener;

private EditText etNumber;

//对外提供一个点击的回调接口

public interface OnAddDelClickListener{

void onAddClick(View v);

void onDelClick(View v);

}

public void setOnAddDelClickListener(OnAddDelClickListener listener){

if(listener!=null){

this.listener=listener;

}

}

public AddDeleteView(Context context) {

this(context,null);

}

public AddDeleteView(Context context, AttributeSet attrs) {

this(context, attrs,0);

}

public AddDeleteView(Context context, AttributeSet attrs, int defStyleAttr) {

super(context, attrs, defStyleAttr);

initView(context, attrs, defStyleAttr);

}

private void initView(Context context, AttributeSet attrs, int defStyleAttr) {

View.inflate(context, R.layout.layout_add_delete,this);

//获取控件

TextView txtDelete=findViewById(R.id.txt_delete);

TextView txtAdd=findViewById(R.id.txt_add);

etNumber = findViewById(R.id.et_number);

TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.AddDeleteViewStyle);

String leftText = typedArray.getString(R.styleable.AddDeleteViewStyle_left_text);

String rightText = typedArray.getString(R.styleable.AddDeleteViewStyle_right_text);

String middleText = typedArray.getString(R.styleable.AddDeleteViewStyle_middle_text);

int color = typedArray.getColor(R.styleable.AddDeleteViewStyle_left_text_color, Color.RED);

txtDelete.setText(leftText);

txtAdd.setText(rightText);

etNumber.setText(middleText);

txtDelete.setTextColor(color);

//回收

typedArray.recycle();

txtDelete.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View view) {

listener.onDelClick(view);

}

});

txtAdd.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View view) {

listener.onAddClick(view);

}

});

}

//对外提供一个修改数字的方法

public void setNumber(int number){

if(number>0){

etNumber.setText(number+"");

}

}

//对外提供一个获取当前数字的方法

public int getNumber(){

String string = etNumber.getText().toString();

int i = Integer.parseInt(string);

return i;

}

}

2.Retrofit工具类 RetrofitUtils

package com.bwei.gepeng.http;

import java.io.IOException;

import okhttp3.HttpUrl;

import okhttp3.Interceptor;

import okhttp3.OkHttpClient;

import okhttp3.Request;

import okhttp3.Response;

import retrofit2.Retrofit;

import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;

import retrofit2.converter.gson.GsonConverterFactory;

public class RetrofitUtils {

private static volatile RetrofitUtils instance;

private final Retrofit retrofit;

private RetrofitUtils(){

OkHttpClient client = new OkHttpClient.Builder().addInterceptor(new Logger()).build();

retrofit = new Retrofit.Builder()

.client(client)

.addCallAdapterFactory(RxJava2CallAdapterFactory.create())

.addConverterFactory(GsonConverterFactory.create())

.baseUrl("http://120.27.23.105/")

.build();

}

public static RetrofitUtils getInstance(){

if(instance==null){

synchronized (RetrofitUtils.class){

if(instance==null){

instance=new RetrofitUtils();

}

}

}

return instance;

}

public ApiService getApiService(){

ApiService apiService = retrofit.create(ApiService.class);

return apiService;

}

class Logger implements Interceptor {

@Override

public Response intercept(Chain chain) throws IOException {

Request original = chain.request();

HttpUrl url=original.url().newBuilder()

.addQueryParameter("source","android")

.build();

//添加请求头

Request request = original.newBuilder()

.url(url)

.build();

return chain.proceed(request);

}

}

}

3.M层

package com.bwei.gepeng.model;

import com.bwei.gepeng.entity.CartBean;

import com.bwei.gepeng.entity.GoodsShowBean;

import com.bwei.gepeng.entity.MessageBean;

import com.bwei.gepeng.http.RetrofitUtils;

import com.bwei.gepeng.presenter.NewsPresenter;

import java.util.List;

import java.util.Map;

import io.reactivex.Flowable;

public class Model implements IModel{

private NewsPresenter presenter;

public Model(NewsPresenter presenter) {

this.presenter = presenter;

}

@Override

public void getData(Map map, String tag) {

if(tag.equals("cart")){

Flowable>> flowable = RetrofitUtils.getInstance().getApiService().getCart(map);

presenter.get2(flowable,tag);

}else if(tag.equals("goods")){

Flowable> flowable = RetrofitUtils.getInstance().getApiService().getNews(map);

presenter.get(flowable,tag);

}else if(tag.equals("del")){

Flowable>> flowable = RetrofitUtils.getInstance().getApiService().getDel(map);

presenter.get3(flowable,tag);

}else if(tag.equals("add")){

Flowable>> flowable = RetrofitUtils.getInstance().getApiService().getAdd(map);

presenter.get4(flowable,tag);

}

}

}

4.P层

package com.bwei.gepeng.presenter;

import com.bwei.gepeng.entity.CartBean;

import com.bwei.gepeng.entity.GoodsShowBean;

import com.bwei.gepeng.entity.MessageBean;

import com.bwei.gepeng.model.Model;

import com.bwei.gepeng.view.IView;

import java.util.List;

import java.util.Map;

import io.reactivex.Flowable;

import io.reactivex.android.schedulers.AndroidSchedulers;

import io.reactivex.schedulers.Schedulers;

import io.reactivex.subscribers.DisposableSubscriber;

public class NewsPresenter implements IPresenter{

private IView iView;

private DisposableSubscriber> subscriber;

private DisposableSubscriber>> subscriber2;

private DisposableSubscriber>> subscriber3;

private DisposableSubscriber>> subscriber4;

public void attachView(IView iView){

this.iView=iView;

}

@Override

public void getData(Map map, String tag) {

Model model = new Model(this);

model.getData(map,tag);

}

public void detachView(){

if(iView!=null){

iView=null;

}

if(subscriber!=null){

if(!subscriber.isDisposed()){

subscriber.dispose();

}

}

if(subscriber2!=null){

if(!subscriber2.isDisposed()){

subscriber2.dispose();

}

}

if(subscriber3!=null){

if(!subscriber3.isDisposed()){

subscriber3.dispose();

}

}

if(subscriber4!=null){

if(!subscriber4.isDisposed()){

subscriber4.dispose();

}

}

}

//查询购物车

public void get(Flowable> flowable , final String tag) {

subscriber = flowable.subscribeOn(Schedulers.io())

.observeOn(AndroidSchedulers.mainThread())

.subscribeWith(new DisposableSubscriber>() {

@Override

public void onNext(MessageBean listMessageBean) {

if (listMessageBean != null) {

GoodsShowBean data = listMessageBean.getData();

iView.OnSuccess(data,tag);

}

}

@Override

public void onError(Throwable t) {

iView.OnFailed(new Exception(t),tag);

}

@Override

public void onComplete() {

}

});

}

//查询商品详情75

public void get2(Flowable>> flowable, final String tag) {

subscriber2 = flowable.subscribeOn(Schedulers.io())

.observeOn(AndroidSchedulers.mainThread())

.subscribeWith(new DisposableSubscriber>>() {

@Override

public void onNext(MessageBean> list) {

if (list != null) {

List data = list.getData();

if(data!=null){

iView.OnSuccess(data,tag);

}

}

}

@Override

public void onError(Throwable t) {

iView.OnFailed(new Exception(t),tag);

}

@Override

public void onComplete() {

}

});

}

//删除购物车

public void get3(Flowable>> flowable, final String tag) {

subscriber3 = flowable.subscribeOn(Schedulers.io())

.observeOn(AndroidSchedulers.mainThread())

.subscribeWith(new DisposableSubscriber>>() {

@Override

public void onNext(MessageBean> list) {

if (list != null) {

String code = list.getMsg();

iView.OnSuccess(code,tag);

}

}

@Override

public void onError(Throwable t) {

iView.OnFailed(new Exception(t),tag);

}

@Override

public void onComplete() {

}

});

}

//添加购物车

public void get4(Flowable>> flowable, final String tag) {

subscriber4 = flowable.subscribeOn(Schedulers.io())

.observeOn(AndroidSchedulers.mainThread())

.subscribeWith(new DisposableSubscriber>>() {

@Override

public void onNext(MessageBean> list) {

if (list != null) {

String code = list.getMsg();

iView.OnSuccess(code,tag);

}

}

@Override

public void onError(Throwable t) {

iView.OnFailed(new Exception(t),tag);

}

@Override

public void onComplete() {

}

});

}

}

5.MainActivity 商品详情页面

package com.bwei.gepeng.view;

import android.content.Intent;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.TextView;

import android.widget.Toast;

import com.bwei.gepeng.R;

import com.bwei.gepeng.entity.GoodsShowBean;

import com.bwei.gepeng.presenter.NewsPresenter;

import com.facebook.drawee.view.SimpleDraweeView;

import java.util.HashMap;

import java.util.Map;

import butterknife.BindView;

import butterknife.ButterKnife;

import butterknife.OnClick;

public class MainActivity extends AppCompatActivity implements IView {

@BindView(R.id.my_image_view)

SimpleDraweeView myImageView;

@BindView(R.id.goods_title)

TextView goodsTitle;

@BindView(R.id.goods_price)

TextView goodsPrice;

private NewsPresenter presenter;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

ButterKnife.bind(this);

presenter = new NewsPresenter();

presenter.attachView(this);

//http://120.27.23.105/product/getProductDetail?pid=75&source=android

Map map = new HashMap<>();

map.put("pid", "75");

presenter.getData(map, "goods");

}

@Override

public void OnSuccess(Object o, String tag) {

if (tag.equals("goods")) {

if (o != null) {

GoodsShowBean data = (GoodsShowBean) o;

//Log.e("Gp", "OnSuccess: " + data.toString());

myImageView.setImageURI(data.getImages().split("\\|")[0]);

goodsTitle.setText(data.getTitle());

goodsPrice.setText("￥ "+data.getPrice());

}

}else if(tag.equals("add")){

if (o != null) {

String msg = (String) o;

Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show();

}

}

}

@Override

public void OnFailed(Exception e, String tag) {

}

@OnClick({R.id.btn_addcart, R.id.btn_shopping})

public void onViewClicked(View view) {

switch (view.getId()) {

case R.id.btn_addcart:

Map map = new HashMap<>();

map.put("uid", "3802");

map.put("pid", "75");

presenter.getData(map, "add");

//Toast.makeText(MainActivity.this,"添加成功",Toast.LENGTH_SHORT).show();

break;

case R.id.btn_shopping:

Intent intent=new Intent(MainActivity.this,Main2Activity.class);

startActivity(intent);

break;

}

}

}

6.二级列表适配器 ExpandableAdapter

package com.bwei.gepeng.adapter;

import android.content.Context;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseExpandableListAdapter;

import android.widget.Button;

import android.widget.CheckBox;

import android.widget.TextView;

import android.widget.Toast;

import com.bwei.gepeng.R;

import com.bwei.gepeng.entity.ChildBean;

import com.bwei.gepeng.entity.GroupBean;

import com.bwei.gepeng.myview.AddDeleteView;

import com.bwei.gepeng.view.Main2Activity;

import com.facebook.drawee.view.SimpleDraweeView;

import java.util.ArrayList;

import java.util.List;

public class ExpandableAdapter extends BaseExpandableListAdapter {

private Context context;

private List groupBeen=new ArrayList<>();

private List> childBeen=new ArrayList<>();

private Main2Activity main;

public ExpandableAdapter(Context context, List groupBeen, List> childBeen) {

this.context = context;

this.groupBeen = groupBeen;

this.childBeen = childBeen;

this.main = (Main2Activity) context;

}

//接口回调

private onDeleteGoods onDleGoods;

public interface onDeleteGoods{

void onDelGoods(int i,int i1,String pid);

}

public void setOnDeleteGoods(onDeleteGoods onDleGoods){

this.onDleGoods=onDleGoods;

}

@Override

public int getGroupCount() {

return groupBeen.size();

}

@Override

public int getChildrenCount(int i) {

return childBeen.get(i).size();

}

@Override

public Object getGroup(int i) {

return groupBeen.get(i).getSellerName();

}

@Override

public Object getChild(int i, int i1) {

return childBeen.get(i).get(i1).getTitle();

}

@Override

public long getGroupId(int i) {

return i;

}

@Override

public long getChildId(int i, int i1) {

return i1;

}

@Override

public boolean hasStableIds() {

return false;

}

//一级组

@Override

public View getGroupView(final int i, boolean b, View view, ViewGroup viewGroup) {

//加载视图

view=View.inflate(context, R.layout.ex_group_item ,null);

final CheckBox groupCb= view.findViewById(R.id.group_checkbox);

TextView shopName= view.findViewById(R.id.shop_name);

shopName.setText(groupBeen.get(i).getSellerName());

groupCb.setChecked(groupBeen.get(i).isGropuCb());

//组复选按钮

groupCb.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

boolean gchecked = groupCb.isChecked();

groupBeen.get(i).setGropuCb(gchecked);

//Main2Activity main= (Main2Activity) context;

for(GroupBean i: groupBeen){

boolean gropuCb = i.isGropuCb();

if(!gropuCb){

main.allCheckbox.setChecked(false);

break;

}else{

main.allCheckbox.setChecked(true);

}

}

int size = childBeen.get(i).size();

if(gchecked){

for(int r=0;r

//Toast.makeText(context,"group按钮"+ gchecked+""+size, Toast.LENGTH_SHORT).show();

childBeen.get(i).get(r).setChildCb(true);

}

}else{

for(int r=0;r

//Toast.makeText(context,"group按钮"+ gchecked+""+size, Toast.LENGTH_SHORT).show();

childBeen.get(i).get(r).setChildCb(false);

}

}

notifyDataSetChanged();

main.changesum(childBeen);

}

});

return view;

}

//二级组

@Override

public View getChildView(final int i, final int i1, boolean b, View v, ViewGroup viewGroup) {

//加载视图

v=View.inflate(context, R.layout.ex_child_item ,null);

final CheckBox childCb = v.findViewById(R.id.child_checkbox);

TextView shopTitle= v.findViewById(R.id.shop_title);

TextView shopPrice= v.findViewById(R.id.shop_price);

//ImageView shopImg=v.findViewById(R.id.shop_img);

//draweeView.setImageURI(uri);

SimpleDraweeView shopImg = v.findViewById(R.id.shop_img);

final AddDeleteView adv = v.findViewById(R.id.adv);

Button shop_delete=v.findViewById(R.id.shop_delete);

childCb.setChecked(childBeen.get(i).get(i1).isChildCb());

String images = childBeen.get(i).get(i1).getImages();

//Glide.with(context).load(images).into(shopImg);

shopImg.setImageURI(images);

shopTitle.setText(childBeen.get(i).get(i1).getTitle());

shopPrice.setText(childBeen.get(i).get(i1).getPrice()+"");

adv.setNumber(childBeen.get(i).get(i1).getNum());

//final Main2Activity main= (Main2Activity) context;

//控制删除按钮的显隐

if(childBeen.get(i).get(i1).isBtn()){

shop_delete.setVisibility(View.VISIBLE);

}else{

shop_delete.setVisibility(View.INVISIBLE);

}

//删除按钮监听

shop_delete.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

onDleGoods.onDelGoods(i,i1,childBeen.get(i).get(i1).getPid()+"");

}

});

//加减器逻辑

adv.setOnAddDelClickListener(new AddDeleteView.OnAddDelClickListener() {

@Override

public void onAddClick(View v) {

int number = adv.getNumber();

number++;

adv.setNumber(number);

childBeen.get(i).get(i1).setNum(number);

main.changesum(childBeen);

}

@Override

public void onDelClick(View v) {

int number = adv.getNumber();

if(number==1){

Toast.makeText(context,"用户最小数量为1",Toast.LENGTH_SHORT).show();

}

number--;

adv.setNumber(number);

childBeen.get(i).get(i1).setNum(number);

main.changesum(childBeen);

}

});

//二级组的复选框监听

childCb.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

boolean flag=false;

boolean cchecked = childCb.isChecked();

childBeen.get(i).get(i1).setChildCb(cchecked);

//Toast.makeText(context,"child按钮"+ cchecked+""+i1, Toast.LENGTH_SHORT).show();

// Main2Activity main= (Main2Activity) context;

for (List i1:childBeen){

for(int r=0;r

boolean childCb1 = i1.get(r).isChildCb();

if(!childCb1){

main.allCheckbox.setChecked(false);

groupBeen.get(i).setGropuCb(false);

flag=true;

break;

}else{

main.allCheckbox.setChecked(true);

groupBeen.get(i).setGropuCb(true);

}

}

if(flag){

break;

}

}

int size = childBeen.get(i).size();

for(int x=0;x

boolean childCb1 = childBeen.get(i).get(x).isChildCb();

if(!childCb1){

groupBeen.get(i).setGropuCb(false);

break;

}else{

groupBeen.get(i).setGropuCb(true);

}

}

notifyDataSetChanged();

main.changesum(childBeen);

}

});

return v;

}

@Override

public boolean isChildSelectable(int i, int i1) {

return false;

}

}

7.购物车页面逻辑 Main2Activity

package com.bwei.gepeng.view;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.CheckBox;

import android.widget.ExpandableListView;

import android.widget.TextView;

import com.bwei.gepeng.R;

import com.bwei.gepeng.adapter.ExpandableAdapter;

import com.bwei.gepeng.entity.CartBean;

import com.bwei.gepeng.entity.ChildBean;

import com.bwei.gepeng.entity.GroupBean;

import com.bwei.gepeng.presenter.NewsPresenter;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import butterknife.BindView;

import butterknife.ButterKnife;

import butterknife.OnClick;

public class Main2Activity extends AppCompatActivity implements IView {

@BindView(R.id.exListView)

ExpandableListView exListView;

@BindView(R.id.all_chekbox)

public CheckBox allCheckbox;

@BindView(R.id.total_price)

TextView totalPrice;

@BindView(R.id.total_number)

TextView totalnumber;

@BindView(R.id.tv_go_to_pay)

TextView tvGoToPay;

@BindView(R.id.tv_go_to_del)

TextView tvGoToDel;

private ExpandableAdapter expandableAdapter;

private boolean flagedit = true;

private boolean flagdel = false;

private NewsPresenter presenter;

List groupBeen = new ArrayList<>();

List> childBeen = new ArrayList<>();

int i;

int i1;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main2);

ButterKnife.bind(this);

//获取二级列表适配器

expandableAdapter = new ExpandableAdapter(Main2Activity.this, groupBeen, childBeen);

exListView.setAdapter(expandableAdapter);

exListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {

@Override

public boolean onGroupClick(ExpandableListView expandableListView, View view, int i, long l) {

return true;

}

});

presenter = new NewsPresenter();

presenter.attachView(this);

//http://120.27.23.105/product/geSRjKrjgCtCarts?uid=3802&source=android

Map map = new HashMap<>();

map.put("uid", "3802");

presenter.getData(map, "cart");

expandableAdapter.setOnDeleteGoods(new ExpandableAdapter.onDeleteGoods() {

@Override

public void onDelGoods(int i, int i1, String pid) {

Main2Activity.this.i = i;

Main2Activity.this.i1 = i1;

Map map = new HashMap<>();

map.put("uid", "3802");

map.put("pid", pid);

presenter.getData(map, "del");

}

});

}

@Override

public void OnSuccess(Object o, String tag) {

if (tag.equals("cart")) {

if (o != null) {

List data = (List) o;

for (CartBean i : data) {

GroupBean groupBean = new GroupBean(i.getSellerName(), false);

this.groupBeen.add(groupBean);

List list = i.getList();

List ls = new ArrayList<>();

for (CartBean.ListBean w : list) {

String[] split = w.getImages().split("\\|");

ChildBean childBean = new ChildBean(w.getTitle(), split[0], w.getPrice(), 1, false, false, w.getPid());

ls.add(childBean);

}

this.childBeen.add(ls);

}

for (int i = 0; i < expandableAdapter.getGroupCount(); i++) {

exListView.expandGroup(i);

}

}

} else if (tag.equals("del")) {

if (o != null) {

String msg = (String) o;

if (this.i != -1 && this.i1 != -1) {

int size = childBeen.get(i).size();

if (size == 1) {

childBeen.remove(i);

groupBeen.remove(i);

} else {

childBeen.get(i).remove(i1);

}

changesum(childBeen);

this.i = -1;

this.i1 = -1;

if(flagdel){

delGoods();

}

}

}

}

expandableAdapter.notifyDataSetChanged();

}

@Override

public void OnFailed(Exception e, String tag) {

}

@OnClick({R.id.back, R.id.edit, R.id.all_chekbox,R.id.tv_go_to_del})

public void onViewClicked(View view) {

switch (view.getId()) {

case R.id.back:

finish();

break;

case R.id.edit:

if(flagedit){

tvGoToPay.setVisibility(View.GONE);

tvGoToDel.setVisibility(View.VISIBLE);

}else{

tvGoToPay.setVisibility(View.VISIBLE);

tvGoToDel.setVisibility(View.GONE);

}

for (List i1 : childBeen) {

for (int r = 0; r < i1.size(); r++) {

i1.get(r).setBtn(flagedit);

}

}

flagedit = !flagedit;

expandableAdapter.notifyDataSetChanged();

break;

case R.id.all_chekbox:

boolean checked = allCheckbox.isChecked();

//改变一级item复选框

for (GroupBean i : groupBeen) {

i.setGropuCb(checked);

}

//改变二级item复选框

for (List i1 : childBeen) {

for (int r = 0; r < i1.size(); r++) {

i1.get(r).setChildCb(checked);

}

}

expandableAdapter.notifyDataSetChanged();

changesum(childBeen);

break;

case R.id.tv_go_to_del:

if(childBeen.size()!=0){

for (List i1 : childBeen) {

for (int r = 0; r < i1.size(); r++) {

boolean childCb1 = i1.get(r).isChildCb();

if (childCb1) {

flagdel=true;

delGoods();

if(allCheckbox.isChecked()){

allCheckbox.setChecked(false);

}

break;

}

}

if(flagdel){

break;

}

}

}

//Toast.makeText(Main2Activity.this,flagdel+"",Toast.LENGTH_SHORT).show();

break;

}

}

//递归删除

private void delGoods(){

Boolean flag=false;

for(int p=0;p

for (int r = 0; r < childBeen.get(p).size(); r++) {

boolean childCb1 = childBeen.get(p).get(r).isChildCb();

if(p==childBeen.size()-1&&r==childBeen.get(p).size()-1){

flagdel=false;

}

if (childCb1) {

int pid = childBeen.get(p).get(r).getPid();

this.i = p;

this.i1 = r;

Map map = new HashMap<>();

map.put("uid", "3802");

map.put("pid", pid+"");

presenter.getData(map, "del");

flag=!flag;

break;

}

}

if(flag){

break;

}

}

}

//计算和数量总价

public void changesum(List> childBeen) {

int count = 0;

double sum = 0;

for (List i1 : childBeen) {

for (int r = 0; r < i1.size(); r++) {

boolean childCb1 = i1.get(r).isChildCb();

if (childCb1) {

double price = i1.get(r).getPrice();

int num = i1.get(r).getNum();

sum += price * num;

count++;

}

}

}

totalPrice.setText("￥" + sum);

totalnumber.setText("共有商品:" + count + "件");

}

}

6.附

shape图 edit

android:width="1dip"

android:color="#BDC7D8" />

Application 初始化Fresco

import android.app.Application;

import com.facebook.drawee.backends.pipeline.Fresco;

public class App extends Application{

@Override

public void onCreate() {

super.onCreate();

Fresco.initialize(this);

}

}

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