购物车代码
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dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { exclude group: 'com.android.support', module: 'support-annotations' }) compile 'com.android.support:appcompat-v7:26.+' compile 'com.android.support.constraint:constraint-layout:1.0.2' testCompile 'junit:junit:4.12' compile 'io.reactivex.rxjava2:rxandroid:2.0.1' compile 'io.reactivex.rxjava2:rxjava:2.1.7' compile 'com.facebook.fresco:fresco:0.12.0' compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4' compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4' compile 'com.squareup.retrofit2:converter-scalars:2.0.0' compile 'com.squareup.retrofit2:adapter-rxjava2:2.2.0' compile 'com.google.code.gson:gson:2.8.2' compile 'com.squareup.okhttp3:okhttp:3.9.0' compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'}
以上便是导入的依赖
<?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" android:orientation="vertical" > <android.support.v7.widget.RecyclerView android:id="@+id/recycler_View" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" /> <LinearLayout android:gravity="center_vertical" android:padding="10dp" android:orientation="horizontal" android:layout_alignParentBottom="true" android:layout_width="match_parent" android:layout_height="wrap_content"> <CheckBox android:background="@drawable/c" android:button="@null" android:id="@+id/quanxuan" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:textStyle="bold" android:layout_marginLeft="10dp" android:textSize="23sp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="全选" /> <LinearLayout android:padding="10dp" android:layout_marginLeft="10dp" android:orientation="vertical" android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content"> <TextView android:textColor="#e53e42" android:id="@+id/total_price" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="20sp" android:text="总价 : ¥0元" /> <TextView android:id="@+id/total_num" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="20sp" android:text="共0件商品" /> </LinearLayout> <TextView android:gravity="center" android:textSize="25sp" android:text="去结算" android:textColor="#fff" android:background="@drawable/qujiesuan" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout></LinearLayout>以上是main-activity
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:orientation="horizontal" android:gravity="center_vertical" android:layout_height="wrap_content"> <Button android:background="#fff" android:textSize="20sp" android:id="@+id/reverse" android:text="一" android:layout_width="50dp" android:layout_height="wrap_content" /> <EditText android:textStyle="bold" android:textSize="23sp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="1" android:id="@+id/count" /> <Button android:id="@+id/add" android:background="#fff" android:textSize="25sp" android:text="+" android:layout_width="50dp" android:layout_height="wrap_content" /></LinearLayout>
以上是cuou<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" xmlns:fresco="http://schemas.android.com/apk/res-auto" android:orientation="vertical" android:padding="15dp" android:layout_height="match_parent"> <LinearLayout android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <CheckBox android:id="@+id/shop_checkbox" android:layout_width="50dp" android:layout_height="50dp" /> <TextView android:layout_marginLeft="20dp" android:text="良品铺子" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="23sp" android:textStyle="bold" android:id="@+id/shop_name" /> </LinearLayout> <LinearLayout android:gravity="center_vertical" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <CheckBox android:id="@+id/item_checkbox" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <com.facebook.drawee.view.SimpleDraweeView android:id="@+id/item_face" fresco:placeholderImage="@mipmap/ic_launcher" fresco:progressBarImage="@mipmap/ic_launcher" fresco:progressBarImageScaleType="centerInside" fresco:failureImage="@mipmap/ic_launcher" fresco:failureImageScaleType="centerInside" android:layout_width="120dp" android:layout_height="120dp" /> <LinearLayout android:layout_marginLeft="10dp" android:orientation="vertical" android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content"> <TextView android:id="@+id/item_name" android:textSize="20sp" android:text="三只松鼠" android:layout_width="wrap_content" android:layout_weight="1" android:layout_height="0dp" /> <TextView android:textColor="#f00" android:id="@+id/item_price" android:textSize="23sp" android:text="299" android:layout_width="wrap_content" android:layout_height="0dp" android:layout_weight="1" /> <com.example.gouwuche.CustomJiaJian android:id="@+id/custom_jiajian" android:layout_width="wrap_content" android:layout_height="0dp" android:layout_weight="1" /> </LinearLayout> <ImageView android:id="@+id/item_delete" android:layout_marginRight="10dp" android:src="@drawable/a" android:layout_width="30dp" android:layout_height="30dp" /> </LinearLayout></LinearLayout>
以上是自己item的文件<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android"> <corners android:radius="200dp"/> <solid android:color="#e53e42"/> <size android:height="60dp" android:width="130dp"/></shape>
这个是自定义的daellcpackage com.example.gouwuche.util;import android.content.Context;import com.facebook.cache.disk.DiskCacheConfig;import com.facebook.common.internal.Supplier;import com.facebook.common.util.ByteConstants;import com.facebook.imagepipeline.cache.MemoryCacheParams;import com.facebook.imagepipeline.core.ImagePipelineConfig;import com.facebook.imagepipeline.listener.RequestListener;import com.facebook.imagepipeline.listener.RequestLoggingListener;import java.util.HashSet;import java.util.Set;/** * Created by D-H-F on 2017/12/11. */public class ImagePipelineConfigFactory { private static final int MAX_HEAP_SIZE = (int) Runtime.getRuntime().maxMemory(); public static final int MAX_DISK_CACHE_SIZE = 40 * ByteConstants.MB; public static final int MAX_MEMORY_CACHE_SIZE = MAX_HEAP_SIZE / 4; private static final String IMAGE_PIPELINE_CACHE_DIR = "imagepipeline_cache"; private static void configureCaches( ImagePipelineConfig.Builder configBuilder, Context context) { final MemoryCacheParams bitmapCacheParams = new MemoryCacheParams( MAX_MEMORY_CACHE_SIZE, // Max total size of elements in the cache Integer.MAX_VALUE, // Max entries in the cache MAX_MEMORY_CACHE_SIZE, // Max total size of elements in eviction queue Integer.MAX_VALUE, // Max length of eviction queue Integer.MAX_VALUE); // Max cache entry size configBuilder .setBitmapMemoryCacheParamsSupplier( new Supplier<MemoryCacheParams>() { public MemoryCacheParams get() { return bitmapCacheParams; } }) .setMainDiskCacheConfig( DiskCacheConfig.newBuilder(context) .setBaseDirectoryPath(context.getApplicationContext().getCacheDir()) .setBaseDirectoryName(IMAGE_PIPELINE_CACHE_DIR) .setMaxCacheSize(MAX_DISK_CACHE_SIZE) .build()); } private static void configureLoggingListeners(ImagePipelineConfig.Builder configBuilder) { Set<RequestListener> requestListeners = new HashSet<>(); requestListeners.add(new RequestLoggingListener()); configBuilder.setRequestListeners(requestListeners); } private static void configureOptions(ImagePipelineConfig.Builder configBuilder) { configBuilder.setDownsampleEnabled(true); }}
这个便是自己package com.example.gouwuche.util;import java.util.concurrent.TimeUnit;import okhttp3.OkHttpClient;/** * Created by D-H-F on 2017/12/11. */public class OkHttpUtils { private static OkHttpClient client = null; public static OkHttpClient getInstance(){ if(client==null){ synchronized (OkHttpUtils.class){ if(client==null){ client = new OkHttpClient.Builder() .connectTimeout(2000, TimeUnit.SECONDS) .writeTimeout(2000,TimeUnit.SECONDS) .readTimeout(2000,TimeUnit.SECONDS) .build(); } } } return client; }}
以上是okhttp的类package com.example.gouwuche.util;import com.example.gouwuche.other.IGetService;import retrofit2.Retrofit;import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;import retrofit2.converter.gson.GsonConverterFactory;/** * Created by D-H-F on 2017/12/11. */public class RetrofitUtils { private static IGetService server =null; public static IGetService getInstance(){ if(server==null){ synchronized (RetrofitUtils.class){ if(server==null){ Retrofit build = new Retrofit.Builder() .baseUrl("http://120.27.23.105") .addConverterFactory(GsonConverterFactory.create()) .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .client(OkHttpUtils.getInstance()) .build(); server = build.create(IGetService.class); } } } return server; }}
以上是自己retrofit的类package com.example.gouwuche;import android.content.Context;import android.util.AttributeSet;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.LinearLayout;/** * Created by HP on 2017/12/11. */public class CustomJiaJian extends LinearLayout { private Button reverse; private Button add; private EditText countEdit; private int mCount =1; public CustomJiaJian(Context context) { super(context); } public CustomJiaJian(Context context, AttributeSet attrs) { super(context, attrs); View view = View.inflate(context, R.layout.custom_jiajian,this); reverse = (Button) view.findViewById(R.id.reverse); add = (Button) view.findViewById(R.id.add); countEdit = (EditText) view.findViewById(R.id.count); reverse.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { String content = countEdit.getText().toString().trim(); int count = Integer.valueOf(content); if(count>1){ mCount = count-1; countEdit.setText(mCount+""); //回调给adapter里面 if(customListener!=null){ customListener.jiajian(mCount); } } } }); add.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { String content = countEdit.getText().toString().trim(); int count = Integer.valueOf(content)+1; mCount = count; countEdit.setText(mCount+""); //接口回调给adapter if(customListener!=null){ customListener.jiajian(mCount); } } }); } public CustomJiaJian(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } CustomListener customListener; public void setCustomListener(CustomListener customListener){ this.customListener = customListener; } //加减的接口 public interface CustomListener{ public void jiajian(int count); public void shuRuZhi(int count); } //这个方法是供recyadapter设置 数量时候调用的 public void setEditText(int num) { if(countEdit !=null) { countEdit.setText(num + ""); } }}
这个便是自己定义的加减的值package com.example.gouwuche.bean;/** * Created by HP on 2017/12/11. */public class DelBean { /** * msg : 删除购物车成功 * code : 0 */ private String msg; private String code; @Override public String toString() { return "DelBean{" + "msg='" + msg + '\'' + ", code='" + code + '\'' + '}'; } public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } public String getCode() { return code; } public void setCode(String code) { this.code = code; }}
DelBean类package com.example.gouwuche.model;import com.example.gouwuche.bean.DelBean;import com.example.gouwuche.util.RetrofitUtils;import io.reactivex.android.schedulers.AndroidSchedulers;import io.reactivex.functions.Consumer;import io.reactivex.schedulers.Schedulers;/** * Created by D-H-F on 2017/12/11. */public class DelModel { public DelModel(String s, int pid, final DelModelInterface delModelInterface) { RetrofitUtils.getInstance().Del(s,pid) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Consumer<DelBean>() { @Override public void accept(DelBean delBean) throws Exception { delModelInterface.Success(delBean); } }, new Consumer<Throwable>() { @Override public void accept(Throwable throwable) throws Exception { System.out.println("throwable1111111111111 = " + throwable); delModelInterface.Fail(); } }); } public interface DelModelInterface{ void Success(DelBean bean); void Fail(); }}
DelModel类
package com.example.gouwuche.model;import com.example.gouwuche.bean.Bean;import com.example.gouwuche.util.RetrofitUtils;import io.reactivex.android.schedulers.AndroidSchedulers;import io.reactivex.functions.Consumer;import io.reactivex.schedulers.Schedulers;/** * Created by D-H-F on 2017/12/11. */public class LoginModel { public void getData(final LoginModelInterface loginModelInterface) { RetrofitUtils.getInstance().get("100") .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Consumer<Bean>() { @Override public void accept(Bean bean) throws Exception { System.out.println("bean = " + bean.toString()); loginModelInterface.Success(bean); } }, new Consumer<Throwable>() { @Override public void accept(Throwable throwable) throws Exception { System.out.println("throwable = " + throwable); loginModelInterface.Fail(); } }); } public interface LoginModelInterface{ void Success(Bean bean); void Fail(); }}
LoginModel类package com.example.gouwuche.other;import android.app.Application;import com.facebook.drawee.backends.pipeline.Fresco;/** * Created by D-H-F on 2017/12/11. */public class IApplication extends Application { @Override public void onCreate() { super.onCreate(); Fresco.initialize(this); }}
IApplication类初试化frescopackage com.example.gouwuche.other;import com.example.gouwuche.bean.Bean;import com.example.gouwuche.bean.DelBean;import io.reactivex.Observable;import retrofit2.http.GET;import retrofit2.http.Query;/** * Created by D-H-F on 2017/12/11. */public interface IGetService { @GET("/product/getCarts") Observable<Bean> get(@Query("uid") String v); @GET("/product/deleteCart") Observable<DelBean> Del(@Query("uid") String v, @Query("pid") int i);}
IGetService类接口
package com.example.gouwuche.present;import com.example.gouwuche.MainActivity;import com.example.gouwuche.bean.DelBean;import com.example.gouwuche.model.DelModel;/** * Created by D-H-F on 2017/12/11. */public class DelPresent { MainActivity mainActivity; public DelPresent(MainActivity mainActivity) { this.mainActivity=mainActivity; } public void get(String s, int pid) { new DelModel(s,pid, new DelModel.DelModelInterface() { @Override public void Success(DelBean bean) { mainActivity.Success(bean); } @Override public void Fail() { mainActivity.Fail(); } }); } public interface DelPresentInterface{ void Success(DelBean bean); void Fail(); }}
DelPresent类package com.example.gouwuche.present;import com.example.gouwuche.MainActivity;import com.example.gouwuche.bean.Bean;import com.example.gouwuche.model.LoginModel;/** * Created by D-H-F on 2017/12/11. */public class LoginPresent { MainActivity mainActivity; LoginModel loginModel; public LoginPresent(MainActivity mainActivity) { this.mainActivity=mainActivity; this.loginModel=new LoginModel(); } public void get() { loginModel.getData(new LoginModel.LoginModelInterface() { @Override public void Success(Bean bean) { mainActivity.Success(bean); } @Override public void Fail() { mainActivity.Fail(); } }); } public void detach() { mainActivity=null; } public interface LoginPresentInterface{ void Success(Bean bean); void Fail(); }}
LoginPresent类
package com.example.gouwuche;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;import android.widget.CheckBox;import android.widget.TextView;import android.widget.Toast;import com.example.gouwuche.adapter.RecAdapter;import com.example.gouwuche.bean.Bean;import com.example.gouwuche.bean.DelBean;import com.example.gouwuche.present.DelPresent;import com.example.gouwuche.present.LoginPresent;import java.util.List;public class MainActivity extends AppCompatActivity implements LoginPresent.LoginPresentInterface, DelPresent.DelPresentInterface{ RecyclerView recycler_View; RecAdapter recAdapter; private RecyclerView recyclerView; private TextView total_price; private TextView total_num; private CheckBox quanxuan; List<Bean.DataBean.ListBean> list; private LoginPresent loginPresent; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); total_price = (TextView) findViewById(R.id.total_price); total_num = (TextView) findViewById(R.id.total_num); quanxuan = (CheckBox) findViewById(R.id.quanxuan); recycler_View = (RecyclerView) findViewById(R.id.recycler_View); recycler_View.setLayoutManager(new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false)); recAdapter = new RecAdapter(this); loginPresent = new LoginPresent(this); loginPresent.get(); recycler_View.setAdapter(recAdapter); recAdapter.setUpdateListener(new RecAdapter.UpdateListener(){ @Override public void setTotal(String total, String num, boolean allCheck) { //设置ui的改变 total_num.setText("共"+num+"件商品");//总数量 total_price.setText("总价 :¥"+total+"元");//总价 if(allCheck){ quanxuan.setTag(2); quanxuan.setBackgroundResource(R.drawable.b); }else{ quanxuan.setTag(1); quanxuan.setBackgroundResource(R.drawable.c); } quanxuan.setChecked(allCheck); } }); quanxuan.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //调用adapter里面的方法 ,,把当前quanxuan状态传递过去 int tag = (int) quanxuan.getTag(); System.out.println("tag = " + tag); if(tag==1){ quanxuan.setTag(2); quanxuan.setBackgroundResource(R.drawable.b); }else{ quanxuan.setTag(1); quanxuan.setBackgroundResource(R.drawable.c); } recAdapter.quanXuan(quanxuan.isChecked()); } }); } @Override public void Success(Bean bean) { recAdapter.addData(bean); } @Override public void Success(DelBean bean) { Toast.makeText(this,bean.getMsg().toString(), Toast.LENGTH_SHORT).show(); } @Override public void Fail() { } @Override protected void onDestroy() { super.onDestroy(); //调用p层的解除绑定 loginPresent.detach(); }}
主界面package com.example.gouwuche.adapter;import android.support.v7.widget.RecyclerView;import android.view.View;import android.view.ViewGroup;import android.widget.CheckBox;import android.widget.ImageView;import android.widget.TextView;import com.example.gouwuche.CustomJiaJian;import com.example.gouwuche.MainActivity;import com.example.gouwuche.R;import com.example.gouwuche.bean.Bean;import com.example.gouwuche.present.DelPresent;import com.facebook.drawee.view.SimpleDraweeView;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;/** * Created by D-H-F on 2017/12/11. */public class RecAdapter extends RecyclerView.Adapter<RecAdapter.ViewHolder1>{ MainActivity mainActivity; List<Bean.DataBean.ListBean> list; Map<String,String> map = new HashMap<>(); private DelPresent delPresent; public RecAdapter(MainActivity mainActivity) { this.mainActivity=mainActivity; } public void addData(Bean bean) { if(list == null){ list = new ArrayList<>(); } //第一层遍历商家和商品 for (Bean.DataBean shop : bean.getData()){ //把商品的id和商品的名称添加到map集合里 ,,为了之后方便调用 map.put(shop.getSellerid(),shop.getSellerName()); //第二层遍历里面的商品 for (int i=0;i<shop.getList().size();i++){ //添加到list集合里 list.add(shop.getList().get(i)); } } //调用方法 设置显示或隐藏 商铺名 setFirst(list); notifyDataSetChanged(); } private void setFirst(List<Bean.DataBean.ListBean> list) { if(list.size()>0){ //如果是第一条数据就设置isFirst为1 list.get(0).setIsFirst(1); //从第二条开始遍历 for (int i=1;i<list.size();i++){ //如果和前一个商品是同一家商店的 if (list.get(i).getSellerid() == list.get(i-1).getSellerid()){ //设置成2不显示商铺 list.get(i).setIsFirst(2); }else{//设置成1显示商铺 list.get(i).setIsFirst(1); //如果当前条目选中,把当前的商铺也选中 if (list.get(i).isItem_check()==true){ list.get(i).setShop_check(list.get(i).isItem_check()); } } } } } @Override public ViewHolder1 onCreateViewHolder(ViewGroup parent, int viewType) { View view = View.inflate(mainActivity, R.layout.recy_cart_item,null); return new ViewHolder1(view); } @Override public void onBindViewHolder(final ViewHolder1 holder, final int position) { /** * 设置商铺的 shop_checkbox和商铺的名字 显示或隐藏 * */ if(list.get(position).getIsFirst()==1){ //显示商家 holder.shop_checkbox.setVisibility(View.VISIBLE); holder.shop_name.setVisibility(View.VISIBLE); //设置shop_checkbox的选中状态 holder.shop_checkbox.setChecked(list.get(position).isShop_check()); holder.shop_name.setText(map.get(String.valueOf(list.get(position).getSellerid()))); }else{//2 //隐藏商家 holder.shop_name.setVisibility(View.GONE); holder.shop_checkbox.setVisibility(View.GONE); } //拆分images字段 String[] split = list.get(position).getImages().split("\\|"); //设置商品的图片 holder.item_face.setImageURI(split[0]); //控制商品的item_checkbox,,根据字段改变 holder.item_checkbox.setChecked(list.get(position).isItem_check()); holder.item_name.setText(list.get(position).getTitle()); holder.item_price.setText(list.get(position).getPrice()+""); //调用customjiajian里面的方法设置 加减号中间的数字 holder.customJiaJian.setEditText(list.get(position).getNum()); //商铺的shop_checkbox点击事件 ,控制商品的item_checkbox holder.shop_checkbox.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //先改变数据源中的shop_check list.get(position).setShop_check(holder.shop_checkbox.isChecked()); for (int i=0;i<list.size();i++){ //如果是同一家商铺的 都给成相同状态 if(list.get(position).getSellerid()==list.get(i).getSellerid()){ //当前条目的选中状态 设置成 当前商铺的选中状态 list.get(i).setItem_check(holder.shop_checkbox.isChecked()); } } //刷新适配器 notifyDataSetChanged(); //调用求和的方法 sum(list); } }); //商品的item_checkbox点击事件,控制商铺的shop_checkbox holder.item_checkbox.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //先改变数据源中的item_checkbox list.get(position).setItem_check(holder.item_checkbox.isChecked()); //反向控制商铺的shop_checkbox for (int i=0;i<list.size();i++){ for (int j=0;j<list.size();j++){ //如果两个商品是同一家店铺的 并且 这两个商品的item_checkbox选中状态不一样 if(list.get(i).getSellerid()==list.get(j).getSellerid() && !list.get(j).isItem_check()){ //就把商铺的shop_checkbox改成false list.get(i).setShop_check(false); break; }else{ //同一家商铺的商品 选中状态都一样,就把商铺shop_checkbox状态改成true list.get(i).setShop_check(true); } } } //更新适配器 notifyDataSetChanged(); //调用求和的方法 sum(list); } }); //删除条目的点击事件 holder.item_delete.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { list.remove(position);//移除集合中的当前数据 //删除完当前的条目 重新判断商铺的显示隐藏 setFirst(list); //调用重新求和 sum(list); delPresent = new DelPresent(mainActivity); delPresent.get("100",list.get(position).getPid()); notifyDataSetChanged(); } }); //加减号的监听, holder.customJiaJian.setCustomListener(new CustomJiaJian.CustomListener() { @Override public void jiajian(int count) { //改变数据源中的数量 list.get(position).setNum(count); notifyDataSetChanged(); sum(list); } @Override //输入值 求总价 public void shuRuZhi(int count) { list.get(position).setNum(count); notifyDataSetChanged(); sum(list); } }); } @Override public int getItemCount() { return list==null?0:list.size(); } private void sum(List<Bean.DataBean.ListBean> list){ int totalNum = 0;//初始的总价为0 float totalMoney = 0.0f; boolean allCheck = true; for (int i=0;i<list.size();i++){ //把 已经选中的 条目 计算价格 if (list.get(i).isItem_check()){ totalNum += list.get(i).getNum(); totalMoney += list.get(i).getNum() * list.get(i).getPrice(); }else{ //如果有个未选中,就标记为false allCheck = false; } } //接口回调出去 把总价 总数量 和allcheck 传给view层 updateListener.setTotal(totalMoney+"",totalNum+"",allCheck); } public void quanXuan(boolean checked) { for (int i=0;i<list.size();i++){ list.get(i).setShop_check(checked); list.get(i).setItem_check(checked); } notifyDataSetChanged(); sum(list); } class ViewHolder1 extends RecyclerView.ViewHolder { private final CheckBox shop_checkbox; private final TextView shop_name; private final CheckBox item_checkbox; private final TextView item_name; private final TextView item_price; private final CustomJiaJian customJiaJian; private final ImageView item_delete; private final SimpleDraweeView item_face; public ViewHolder1(View itemView) { super(itemView); shop_checkbox = (CheckBox) itemView.findViewById(R.id.shop_checkbox); shop_name = (TextView) itemView.findViewById(R.id.shop_name); item_checkbox = (CheckBox) itemView.findViewById(R.id.item_checkbox); item_name = (TextView) itemView.findViewById(R.id.item_name); item_price = (TextView) itemView.findViewById(R.id.item_price); customJiaJian = (CustomJiaJian) itemView.findViewById(R.id.custom_jiajian); item_delete = (ImageView) itemView.findViewById(R.id.item_delete); item_face = (SimpleDraweeView) itemView.findViewById(R.id.item_face); } } UpdateListener updateListener; public void setUpdateListener(UpdateListener updateListener){ this.updateListener = updateListener; } //接口 public interface UpdateListener{ void setTotal(String total, String num, boolean allCheck); }}
适配器文件http://blog.csdn.net/thw_m/article/details/78604105这个是网址
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