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' 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
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" android:weightSum="1"> <TextView android:id="@+id/txt_delete" android:layout_width="30dp" android:layout_height="30dp" android:text="减" android:gravity="center" android:background="#8b948b"/> <EditText 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"/> <TextView android:id="@+id/txt_add" android:layout_width="30dp" android:layout_height="30dp" android:text="加" android:gravity="center" android:background="#8b948b"/> </LinearLayout>
2. 商品详情布局 activity_main
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:fresco="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <com.facebook.drawee.view.SimpleDraweeView android:id="@+id/my_image_view" android:layout_width="match_parent" android:layout_height="450dp" fresco:placeholderImage="@mipmap/ic_launcher" /> <TextView 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" /> <TextView 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" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="10dp" android:text="我是商家19" android:textSize="16dp" /> </LinearLayout> <LinearLayout android:layout_alignParentBottom="true" android:layout_width="match_parent" android:layout_height="50dp" android:orientation="horizontal"> <Button 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"/> <Button 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"/> </LinearLayout> </RelativeLayout>
3.购物车布局 activity_main2
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <!--头布局--> <LinearLayout android:id="@+id/top_bar" android:layout_width="match_parent" android:layout_height="48dp" android:background="#f7f7f7" android:orientation="vertical" > <RelativeLayout android:layout_width="match_parent" android:layout_height="48dp" android:background="@android:color/transparent" android:orientation="vertical" > <ImageView 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" /> <TextView 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" /> <TextView 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" /> </RelativeLayout> </LinearLayout> <ExpandableListView android:id="@+id/exListView" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:childIndicator="@null" android:groupIndicator="@null" > </ExpandableListView> <LinearLayout android:layout_width="match_parent" android:layout_height="50dp" android:gravity="center_vertical" android:orientation="horizontal" > <CheckBox android:id="@+id/all_chekbox" android:layout_marginLeft="20dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="全选"/> <LinearLayout android:id="@+id/ll_info" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="4" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:layout_marginRight="20dp" android:layout_weight="1" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="right" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="5dp" android:text="合计:" android:textSize="18sp" android:textStyle="bold" /> <TextView 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" /> </LinearLayout> <TextView 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" /> </LinearLayout> <TextView 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" /> <TextView 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" /> </LinearLayout> </LinearLayout> </LinearLayout>
4.二级列表组级布局 ex_group_item
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#cfc3c3" android:orientation="horizontal"> <CheckBox android:id="@+id/group_checkbox" android:layout_marginLeft="20dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:focusable="false"/> <TextView android:id="@+id/shop_name" android:layout_marginLeft="20dp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="16dp" /> </LinearLayout>
5.二级列表子布局 ex_child_item
<?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" xmlns:fresco="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="230dp" android:orientation="horizontal"> <CheckBox 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" /> <RelativeLayout android:layout_marginLeft="20dp" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView 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" /> <!--<ImageView android:id="@+id/shop_img" android:layout_width="90dp" android:layout_height="90dp" android:layout_marginTop="30dp" app:srcCompat="@mipmap/ic_launcher" android:layout_below="@+id/shop_name" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" />--> <com.facebook.drawee.view.SimpleDraweeView 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" /> <TextView 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"/> <com.bwei.gepeng.myview.AddDeleteView 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" > </com.bwei.gepeng.myview.AddDeleteView> <Button 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" /> </RelativeLayout> </LinearLayout>
3.实体类
1. MessageBean
package com.bwei.gepeng.entity;
public class MessageBean <T>{
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<ListBean> 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<ListBean> getList() {
return list;
}
public void setList(List<ListBean> 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<MessageBean<GoodsShowBean>> getNews(@QueryMap Map<String,String> map);
//查询购物车
//http://120.27.23.105/product/getCarts?uid=3802&source=android
@GET("product/getCarts")
Flowable<MessageBean<List<CartBean>>> getCart(@QueryMap Map<String,String> map);
//删除购物车
//http://120.27.23.105/product/getCarts?uid=3802&source=android
@GET("product/deleteCart")
Flowable<MessageBean<List<CartBean>>> getDel(@QueryMap Map<String,String> map);
//添加购物车
//http://120.27.23.105/product/addCart?uid=3802&pid=75&source=android
@GET("product/addCart")
Flowable<MessageBean<List<CartBean>>> getAdd(@QueryMap Map<String,String> 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<String,String> map, String tag);
}
4.IModel
[java] view plain copy
import java.util.Map;
public interface IModel {
void getData(Map<String,String> 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<String, String> map, String tag) {
if(tag.equals("cart")){
Flowable<MessageBean<List<CartBean>>> flowable = RetrofitUtils.getInstance().getApiService().getCart(map);
presenter.get2(flowable,tag);
}else if(tag.equals("goods")){
Flowable<MessageBean<GoodsShowBean>> flowable = RetrofitUtils.getInstance().getApiService().getNews(map);
presenter.get(flowable,tag);
}else if(tag.equals("del")){
Flowable<MessageBean<List<CartBean>>> flowable = RetrofitUtils.getInstance().getApiService().getDel(map);
presenter.get3(flowable,tag);
}else if(tag.equals("add")){
Flowable<MessageBean<List<CartBean>>> 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<MessageBean<GoodsShowBean>> subscriber;
private DisposableSubscriber<MessageBean<List<CartBean>>> subscriber2;
private DisposableSubscriber<MessageBean<List<CartBean>>> subscriber3;
private DisposableSubscriber<MessageBean<List<CartBean>>> subscriber4;
public void attachView(IView iView){
this.iView=iView;
}
@Override
public void getData(Map<String, String> 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<MessageBean<GoodsShowBean>> flowable , final String tag) {
subscriber = flowable.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(new DisposableSubscriber<MessageBean<GoodsShowBean>>() {
@Override
public void onNext(MessageBean<GoodsShowBean> 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<MessageBean<List<CartBean>>> flowable, final String tag) {
subscriber2 = flowable.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(new DisposableSubscriber<MessageBean<List<CartBean>>>() {
@Override
public void onNext(MessageBean<List<CartBean>> list) {
if (list != null) {
List<CartBean> 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<MessageBean<List<CartBean>>> flowable, final String tag) {
subscriber3 = flowable.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(new DisposableSubscriber<MessageBean<List<CartBean>>>() {
@Override
public void onNext(MessageBean<List<CartBean>> 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<MessageBean<List<CartBean>>> flowable, final String tag) {
subscriber4 = flowable.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(new DisposableSubscriber<MessageBean<List<CartBean>>>() {
@Override
public void onNext(MessageBean<List<CartBean>> 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<String, String> 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<String, String> 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<GroupBean> groupBeen=new ArrayList<>();
private List<List<ChildBean>> childBeen=new ArrayList<>();
private Main2Activity main;
public ExpandableAdapter(Context context, List<GroupBean> groupBeen, List<List<ChildBean>> 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<size;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<size;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<ChildBean> i1:childBeen){
for(int r=0;r<i1.size();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<size;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<GroupBean> groupBeen = new ArrayList<>();
List<List<ChildBean>> 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/getCarts?uid=3802&source=android
Map<String, String> 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<String, String> 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<CartBean> data = (List<CartBean>) o;
for (CartBean i : data) {
GroupBean groupBean = new GroupBean(i.getSellerName(), false);
this.groupBeen.add(groupBean);
List<CartBean.ListBean> list = i.getList();
List<ChildBean> 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<ChildBean> 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<ChildBean> 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<ChildBean> 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<childBeen.size();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<String, String> 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<List<ChildBean>> childBeen) {
int count = 0;
double sum = 0;
for (List<ChildBean> 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
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <solid android:color="#FFFFFF" /> <!--<corners android:radius="3dip"/>--> <stroke android:width="1dip" android:color="#BDC7D8" /> </shape>
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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