OKhttp架构，recycleView布局的低仿购物车

-------------------------------------------activity_main.xml--------------------------------------------------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="bwie.com.goods_gar_gepeng1.MainActivity">

<android.support.v7.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="match_parent">

</android.support.v7.widget.RecyclerView>

</LinearLayout>

---------------------activity_main2.xml------------------------------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="bwie.com.goods_gar_gepeng1.Main2Activity"
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_he
20000
ight="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"

/>
</LinearLayout>

</LinearLayout>

</LinearLayout>

-------------------------ex_child_item.xml--------------------------

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

<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"/>
<!-- 写自己的包名.项目名-->
<bwie.com.goods_gar_gepeng1.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"
>

</bwie.com.goods_gar_gepeng1.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>

-----------------------------ex_group_item.xml---------------------------------

<?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>

-------------------------------------layout_add_delete.xml------------------------------------------

<?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="-"
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="+"
android:gravity="center"
android:background="#8b948b"/>

</LinearLayout>

----------------------------------recyclerview_img.xml-----------------------------------------

<?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">

<ImageView
android:id="@+id/rv_img"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

</LinearLayout>

===========================其中在drowable中有个edit.xml=============================

<?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>

===================================在values中有一个attrs.xml==============================

<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="AddDeleteViewStyle">
<attr name="left_text" format="string"></attr>
<attr name="right_text" format="string"></attr>
<attr name="middle_text" format="string"></attr>
<attr name="left_text_color" format="color"></attr>
</declare-styleable>

</resources>

====================================M层（utils）3个=========================================---------------------CallBack-----------------------

public interface CallBack {void onSuccess(String tag, Object o);void onFailed(String tag, Exception e);}

--------------------GsonUtils---------------------import com.google.gson.Gson;public class GsonUtils { private static Gson gson; public static Gson getInstance(){ if(gson==null){ gson=new Gson(); } return gson; }}----------------HttpUtils--------------------

public class HttpUtils {private static final String TAG = "HttpUtils";private static volatile HttpUtils instance;Handler handler=new Handler();public HttpUtils() {}public static HttpUtils getInstance(){if(null==instance){synchronized (HttpUtils.class){if(instance==null){instance = new HttpUtils();}}}return instance;}public void get(String url, Map<String,String> map, final CallBack callBack, final Class cla, final String tag){if(TextUtils.isEmpty(url)){return;}StringBuffer sb=new StringBuffer();sb.append(url);if(!map.isEmpty()){Log.i(TAG, "get: url="+"开始拼接+++++++++++++++++");if(url.contains("?")){if(url.indexOf("?")==url.length()-1){}else {sb.append("&");}}else {sb.append("?");}for (Map.Entry<String,String> entry:map.entrySet()){sb.append(entry.getKey()).append("=").append(entry.getValue()).append("&");}if(sb.indexOf("&")!=-1){sb.deleteCharAt(sb.lastIndexOf("&"));}}Log.i(TAG, "get: url="+sb);OkHttpClient client=new OkHttpClient.Builder().build();final Request request=new Request.Builder().get().url(sb.toString()).build();Call call = client.newCall(request);call.enqueue(new Callback() {@Overridepublic void onFailure(Call call, final IOException e) {handler.post(new Runnable() {@Overridepublic void run() {callBack.onFailed(tag,e);}});}@Overridepublic void onResponse(Call call, Response response) throws IOException {final String result = response.body().string();Log.e(TAG, "onResponse: result--"+result);handler.post(new Runnable() {@Overridepublic void run() {Object o;if (TextUtils.isEmpty(result)) {o = null;} else {o = GsonUtils.getInstance().fromJson(result, cla);}//Log.e(TAG, "onResponse: bean--"+);callBack.onSuccess(tag, o);}});}});}}

============================V层==========================----------------------IView-------------------------------

public interface INewView {void success(String tag, Object o);void failed(String tag, Exception e);}

============================P层===========================--------------------------NewsPresenter----------------------------

public class NewsPresenter {private static final String TAG = "NewsPresenter";private INewView inv;public void attachView(INewView inv){this.inv=inv;}public void get(String url, Map<String, String> map, String tag, Class cla){HttpUtils.getInstance().get(url, map, new CallBack() {@Overridepublic void onSuccess(String tag, Object o) {if(o!=null){inv.success(tag,o);//Log.i(TAG, "onSuccess:++++++++++++++++++++++++ "+gridSudokuBeanData.toString());}}@Overridepublic void onFailed(String tag, Exception e) {inv.failed(tag,e);}}, cla,tag);}public void deleteView(){if(inv!=null){inv=null;}}}

----------------------------------适配器两个----------------------------------------------------------ExpandableAdapter--------------------------

public class ExpandableAdapter extends BaseExpandableListAdapter {// private static final String TAG = "ExpandableAdapter二级列表适配器";private Context context;private List<GroupBean> groupBeen=new ArrayList<>();private List<List<ChildBean>> childBeen=new ArrayList<>();//接口public ExpandableAdapter(Context context, List<GroupBean> groupBeen, List<List<ChildBean>> childBeen) {this.context = context;this.groupBeen = groupBeen;this.childBeen = childBeen;}@Overridepublic int getGroupCount() {return groupBeen.size();}@Overridepublic int getChildrenCount(int i) {return childBeen.get(i).size();}@Overridepublic Object getGroup(int i) {return groupBeen.get(i).getSellerName();}@Overridepublic Object getChild(int i, int i1) {return childBeen.get(i).get(i1).getTitle();}@Overridepublic long getGroupId(int i) {return i;}@Overridepublic long getChildId(int i, int i1) {return i1;}@Overridepublic boolean hasStableIds() {return false;}//一级组@Overridepublic 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= (CheckBox) view.findViewById(R.id.group_checkbox);TextView shopName= (TextView) 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() {@Overridepublic 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@Overridepublic 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 = (CheckBox) v.findViewById(R.id.child_checkbox);TextView shopTitle= (TextView) v.findViewById(R.id.shop_title);TextView shopPrice= (TextView) v.findViewById(R.id.shop_price);ImageView shopImg= (ImageView) v.findViewById(R.id.shop_img);final AddDeleteView adv = (AddDeleteView) v.findViewById(R.id.adv);Button shop_delete= (Button) v.findViewById(R.id.shop_delete);childCb.setChecked(childBeen.get(i).get(i1).isChildCb());Glide.with(context).load(childBeen.get(i).get(i1).getImages()).into(shopImg);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() {@Overridepublic void onClick(View view) {int size = childBeen.get(i).size();if(size==1){childBeen.remove(i);groupBeen.remove(i);}else{childBeen.get(i).remove(i1);}//点击删除后隐藏所有删除按钮for (List<ChildBean> i1:childBeen){for(int r=0;r<i1.size();r++) {i1.get(r).setBtn(false);}}notifyDataSetChanged();main.changesum(childBeen);}});//加减器逻辑adv.setOnAddDelClickListener(new AddDeleteView.OnAddDelClickListener() {@Overridepublic void onAddClick(View v) {int number = adv.getNumber();number++;adv.setNumber(number);childBeen.get(i).get(i1).setNum(number);main.changesum(childBeen);}@Overridepublic void onDelClick(View v) {int number = adv.getNumber();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() {@Overridepublic 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;}@Overridepublic boolean isChildSelectable(int i, int i1) {return false;}}

-----------------------------RecyclerViewAdapter-----------------------------------

public class RecyclerViewAdapter  extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHodler> {private Context context;List<ImageBean.DataBean.DefaultGoodsListBean> imglist=new ArrayList<>();private OnJump jump;public interface OnJump{void onJump();}public void setOnJump(OnJump jump){this.jump=jump;}public RecyclerViewAdapter(Context context, List<ImageBean.DataBean.DefaultGoodsListBean> imglist) {this.context = context;this.imglist = imglist;}@Overridepublic RecyclerViewAdapter.ViewHodler onCreateViewHolder(ViewGroup parent, int viewType) {View view = View.inflate(context, R.layout.recyclerview_img, null);ViewHodler hodler = new ViewHodler(view);return hodler;}@Overridepublic void onBindViewHolder(RecyclerViewAdapter.ViewHodler holder, int position) {Glide.with(context).load(imglist.get(position).getGoods_img()).into(holder.img);holder.itemView.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {jump.onJump();}});}@Overridepublic int getItemCount() {return imglist.size();}class ViewHodler extends RecyclerView.ViewHolder{private ImageView img;public ViewHodler(View itemView) {super(itemView);img=(ImageView) itemView.findViewById(R.id.rv_img);}}}

-------------------------------------bean包为数据包，可以刺自己解析数据---------------------------------------------------------------------MainActivity-------------------------

public class MainActivity extends AppCompatActivity implements RecyclerViewAdapter.OnJump, INewView {/*int[] img={R.drawable.a1,R.drawable.a2,R.drawable.a3,R.drawable.a4,R.drawable.a5,R.drawable.a6,R.drawable.a7,R.drawable.a8,R.drawable.a9,R.drawable.a10,};*/private NewsPresenter presenter;private List<ImageBean.DataBean.DefaultGoodsListBean> imglist=new ArrayList<>();private RecyclerViewAdapter recyclerViewAdapter;private RecyclerView rv;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);rv = (RecyclerView) findViewById(R.id.rv);StaggeredGridLayoutManager manager=new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL);rv.setLayoutManager(manager);recyclerViewAdapter = new RecyclerViewAdapter(MainActivity.this, imglist);rv.setAdapter(recyclerViewAdapter);Map<String,String> map = new HashMap<>();presenter = new NewsPresenter();presenter.attachView(this);presenter.get( "http://result.eolinker.com/umIPmfS6c83237d9c70c7c9510c9b0f97171a308d13b611?uri=homepage",map,"img", ImageBean.class);recyclerViewAdapter.setOnJump(this);}@Overridepublic void success(String tag, Object o) {if(tag.equals("img")){ImageBean imgBean= (ImageBean) o;List<ImageBean.DataBean.DefaultGoodsListBean> defaultGoodsList = imgBean.getData().getDefaultGoodsList();imglist.addAll(defaultGoodsList);recyclerViewAdapter.notifyDataSetChanged();}}@Overridepublic void failed(String tag, Exception e) {Toast.makeText(MainActivity.this,"你已进入没有网络的异次元o(╥﹏╥)o",Toast.LENGTH_SHORT).show();}@Overridepublic void onJump() {startActivity(new Intent(MainActivity.this, Main2Activity.class));}}

-------------------------------------Main2Activity--------------------------------------

public class Main2Activity extends AppCompatActivity implements INewView {//注意细节//private static final String TAG = "Main2Activity数据";private ExpandableListView exListView;public CheckBox allCheckbox;private TextView totalPrice;private TextView totalnumber;List<GroupBean> groupBeen=new ArrayList<>();List<List<ChildBean>> childBeen=new ArrayList<>();private NewsPresenter presenter;private ExpandableAdapter expandableAdapter;private TextView edit;private boolean flagedit=true;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main2);getSupportActionBar().hide();initView();presenter = new NewsPresenter();presenter.attachView(this);Map<String,String> map = new HashMap<>();presenter.get("http://120.27.23.105/product/getCarts?uid=100",map,"car",ShopCarBean.class);//获取二级列表适配器expandableAdapter = new ExpandableAdapter(Main2Activity.this, groupBeen, childBeen);exListView.setAdapter(expandableAdapter);for(int i = 0; i < expandableAdapter.getGroupCount(); i++){exListView.expandGroup(i);}exListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {@Overridepublic boolean onGroupClick(ExpandableListView expandableListView, View view, int i, long l) {return true;}});//全选监听allCheckbox.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {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);//Toast.makeText(Main2Activity.this,"全选按钮"+checked,Toast.LENGTH_SHORT).show();}});edit.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {for (List<ChildBean> i1:childBeen){for(int r=0;r<i1.size();r++) {i1.get(r).setBtn(flagedit);}}flagedit=!flagedit;expandableAdapter.notifyDataSetChanged();}});}//初始化控件private void initView() {exListView = (ExpandableListView) findViewById(R.id.exListView);allCheckbox = (CheckBox)findViewById(R.id.all_chekbox);totalPrice = (TextView)findViewById(R.id.total_price);totalnumber = (TextView)findViewById(R.id.total_number);edit = (TextView) findViewById(R.id.edit);}@Overridepublic void success(String tag, Object o) {if(o!=null&&tag.equals("car")){ShopCarBean shopCarBean= (ShopCarBean) o;List<ShopCarBean.DataBean> data = shopCarBean.getData();for (ShopCarBean.DataBean i:data){GroupBean groupBean = new GroupBean(i.getSellerName(), false);this.groupBeen.add(groupBean);List<ShopCarBean.DataBean.ListBean> list = i.getList();List<ChildBean> ls=new ArrayList<>();for (ShopCarBean.DataBean.ListBean w:list){String[] split = w.getImages().split("\\|");ChildBean childBean = new ChildBean(w.getTitle(), split[0], w.getPrice(), 1, false,false);ls.add(childBean);}this.childBeen.add(ls);}for(int i = 0; i < expandableAdapter.getGroupCount(); i++){exListView.expandGroup(i);}expandableAdapter.notifyDataSetChanged();}}@Overridepublic void failed(String tag, Exception e) {Toast.makeText(Main2Activity.this,e.getMessage()+",第二个界面，呵呵哒",Toast.LENGTH_SHORT).show();}//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");}}