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' 
 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); 
 } 
} 

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。