一级购物车

来源:互联网 发布:交行信用卡淘宝有积分 编辑:程序博客网 时间:2020/11/25 15:15


依赖

compile 'com.squareup.okhttp3:okhttp:3.9.0'compile 'com.google.code.gson:gson:2.8.2'compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'compile 'com.github.bumptech.glide:glide:3.7.0'

权限

<uses-permission android:name="android.permission.INTERNET"/>

activity_main


<?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" />        </RelativeLayout>    </LinearLayout>    <ListView        android:id="@+id/listView"        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="1"        android:childIndicator="@null"        android:groupIndicator="@null" >    </ListView>    <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"                    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 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"    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_title"            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.listview.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.listview.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>_____________________________________________________________________________________________自定义view  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="-"        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>values下的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>

 
drawable下的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>myview包AddDeleteView类
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.listview.R;/** * 作者 * on 2017/11/18 10:49 */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.BLACK);        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;    }}


————————————————————————————————————————————————————————————————————————————————————————————————

 model包

HttpUtils类

import android.os.Handler;import android.util.Log;import com.google.gson.Gson;import java.io.IOException;import java.util.Map;import okhttp3.Call;import okhttp3.Callback;import okhttp3.FormBody;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.Response;/** * Created by 壹颗大金星 on 2017/11/9. */public class HttpUtils {    private static volatile HttpUtils instance;    private static Handler handler = new Handler();    private HttpUtils(){    }    public static HttpUtils getInstance() {        if (instance == null) {            synchronized (HttpUtils.class) {                if (instance == null) {                    instance = new HttpUtils();                }            }        }        return instance;    }    //get请求    public void get(String url, Map<String,String> map, final CallBack callBack, final Class c,String tag){        //url和参数做拼接处理        StringBuffer stringBuffer = new StringBuffer();        stringBuffer.append(url);        //判断是否存在?   if中是存在        if(stringBuffer.indexOf("?")!=-1 ){            //判断?是否在最后一位    if中是不在最后一位            if(stringBuffer.indexOf("?")!=stringBuffer.length()-1){                stringBuffer.append("&");            }        }else{            stringBuffer.append("?");        }        for(Map.Entry<String,String> entry:map.entrySet()){            stringBuffer.append(entry.getKey())                    .append("=")                    .append(entry.getValue())                    .append("&");        }        //判断是否存在&   if中是存在        if(stringBuffer.indexOf("&")!=-1){            stringBuffer.deleteCharAt(stringBuffer.lastIndexOf("&"));        }        //1:创建OkHttpClient对象        OkHttpClient okHttpClient = new OkHttpClient.Builder().build();        //2:创建Request对象        final Request request = new Request.Builder()                .get()                .url(stringBuffer.toString())                .build();        //3:创建Call对象        Call call = okHttpClient.newCall(request);        //4:请求网络        call.enqueue(new Callback() {            //请求失败            @Override            public void onFailure(Call call, final IOException e) {                handler.post(new Runnable() {                    @Override                    public void run() {                        callBack.onFailed(e);                    }                });            }            //请求成功            @Override            public void onResponse(Call call, Response response) throws IOException {                String result = response.body().string();                Log.e("TAG",result.toString());                //拿到数据解析                final Object o = new Gson().fromJson(result, c);                Log.i("hhh", o+"");                //当前是在子线程,回到主线程中                handler.post(new Runnable() {                    @Override                    public void run() {                        //回调                        callBack.onSuccess("hh",o);                    }                });            }        });    }    //post请求    public void post(String url, Map<String,String> map, final CallBack callBack, final Class c,String tag){        //1:创建OkHttpClient对象        OkHttpClient okHttpClient = new OkHttpClient();        //2:提供post请求需要的body对象        FormBody.Builder builder = new FormBody.Builder();        for(Map.Entry<String,String> entry:map.entrySet()){            builder.add(entry.getKey(),entry.getValue());        }        FormBody body = builder.build();        //3:创建Request对象        final Request request = new Request.Builder()                .post(body)                .url(url)                .build();        //4:创建Call对象        Call call = okHttpClient.newCall(request);        //5:请求网络        call.enqueue(new Callback() {            //请求失败            @Override            public void onFailure(Call call, final IOException e) {                handler.post(new Runnable() {                    @Override                    public void run() {                        callBack.onFailed(e);                    }                });            }            //请求成功            @Override            public void onResponse(Call call, Response response) throws IOException {                String result = response.body().string();                //拿到数据解析                final Object o = new Gson().fromJson(result, c);                //当前是在子线程,回到主线程中                handler.post(new Runnable() {                    @Override                    public void run() {                        //回调                        callBack.onSuccess("hh",o);                    }                });            }        });    }}CallBack接口
public interface CallBack {    void onSuccess(String tag,Object o);    void onFailed(Exception e);}
 
Iv接口

import com.bwei.listview.bean.GoodsBean;import java.util.ArrayList;import java.util.List;/** * Created by HQ on 2017/11/14. */public interface Iv {    void onSuccess(List<GoodsBean> list);    void onFiled( Exception e);}
*********************************************************************


bean包

1.最外层的bean类
2.GoodsBean 类

public class GoodsBean {    private String childTitle;    private boolean checkchild;    private String img;    private double price;    private int num;    private boolean btn;    public GoodsBean(String childTitle, boolean checkchild, String img, double price, int num, boolean btn) {        this.childTitle = childTitle;        this.checkchild = checkchild;        this.img = img;        this.price = price;        this.num = num;        this.btn = btn;    }    public String getChildTitle() {        return childTitle;    }    public void setChildTitle(String childTitle) {        this.childTitle = childTitle;    }    public boolean isCheckchild() {        return checkchild;    }    public void setCheckchild(boolean checkchild) {        this.checkchild = checkchild;    }    public String getImg() {        return img;    }    public void setImg(String img) {        this.img = img;    }    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 isBtn() {        return btn;    }    public void setBtn(boolean btn) {        this.btn = btn;    }    @Override    public String toString() {        return "GoodsChilde{" +                "childTitle='" + childTitle + '\'' +                ", checkchild=" + checkchild +                ", img='" + img + '\'' +                ", price=" + price +                ", num=" + num +                ", btn=" + btn +                '}';    }}¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥
import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.CheckBox;import android.widget.ListView;import android.widget.TextView;import com.bwei.listview.adapter.GoodsAdapter;import com.bwei.listview.bean.GoodsBean;import com.bwei.listview.model.Iv;import com.bwei.listview.presenter.Presenter;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity implements Iv {    private ListView listView;    public CheckBox all_checKbox;    private TextView total_price;    private TextView total_number;    private TextView pay;    private TextView edit;    List<GoodsBean> list = new ArrayList<GoodsBean>();    private Presenter presenter;    private GoodsAdapter adapter;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        listView = (ListView) findViewById(R.id.listView);        all_checKbox = (CheckBox) findViewById(R.id.all_chekbox);        total_price = (TextView) findViewById(R.id.total_price);        total_number = (TextView) findViewById(R.id.total_number);        pay = (TextView) findViewById(R.id.tv_go_to_pay);        edit = (TextView) findViewById(R.id.edit);        presenter = new Presenter(MainActivity.this, this, list);        presenter.Goods();        //全选按钮的点击事件        all_checKbox.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                //获取到全选按钮的状态                boolean checked = all_checKbox.isChecked();                for (GoodsBean i : list) {                    i.setCheckchild(checked);                }                //刷新适配器                adapter.notifyDataSetChanged();                //计算的方法                changesum(list);            }        });    }    //计算的逻辑    public void changesum(List<GoodsBean> goodsbean) {        double sum = 0;        int count = 0;        for (int i = 0; i < goodsbean.size(); i++) {            boolean childCb1 = goodsbean.get(i).isCheckchild();            if (childCb1) {                double price = goodsbean.get(i).getPrice();                int num = goodsbean.get(i).getNum();                sum += num * price;                count += num;            }        }        total_price.setText("¥:" + sum);        total_number.setText("共计有"+count+"件商品");    }    @Override    public void onSuccess(List<GoodsBean> list) {        adapter = new GoodsAdapter(this, list);        listView.setAdapter(adapter);        adapter.notifyDataSetChanged();    }    @Override    public void onFiled(Exception e) {    }}
 

&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&


P层
import android.content.Context;import android.util.Log;import com.bwei.listview.MainActivity;import com.bwei.listview.bean.Bean;import com.bwei.listview.bean.GoodsBean;import com.bwei.listview.model.CallBack;import com.bwei.listview.model.HttpUtils;import com.bwei.listview.model.Iv;import java.util.HashMap;import java.util.List;/** * Created by HQ on 2017/11/21. */public class Presenter {    private Context context;    private Iv iv;    private List<GoodsBean> list;    public Presenter(Context context, Iv iv, List<GoodsBean> list) {        this.context = context;        this.iv = iv;        this.list = list;    }    public void Goods() {        HashMap<String, String> map = new HashMap<>();        HttpUtils.getInstance().post("http://120.27.23.105/product/getCarts?uid=100", map, new CallBack() {            @Override            public void onSuccess(String tag, Object o) {                Bean bean = (Bean) o;                List<Bean.DataBean> data = bean.getData();                 for(int i=0;i<data.size();i++){                     List<Bean.DataBean.ListBean> list1 = data.get(i).getList();                     for(int j=0;j<list1.size();j++){                         double price = list1.get(j).getBargainPrice();                         String images = list1.get(j).getImages();                         String title = list1.get(j).getTitle();                         list.add(new GoodsBean(title,false,images,price,1,false));                     }                     Log.e("hhh", list.toString());                 }                iv.onSuccess(list);            }            @Override            public void onFailed(Exception e) {            }        },Bean.class,"hh");    }    }


@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@


adapter包

import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.CheckBox;import android.widget.ImageView;import android.widget.TextView;import com.bumptech.glide.Glide;import com.bwei.listview.MainActivity;import com.bwei.listview.R;import com.bwei.listview.bean.GoodsBean;import com.bwei.listview.myview.AddDeleteView;import java.util.List;import static android.R.attr.checked;/** * Created by HQ on 2017/11/22. */public class GoodsAdapter extends BaseAdapter {    private Context context;    private List<GoodsBean> list;    MainActivity con;    private View view;    public GoodsAdapter(Context context, List<GoodsBean> list) {        this.context = context;        this.list = list;        con=(MainActivity)context;    }    @Override    public int getCount() {        return list.size();    }    @Override    public Object getItem(int i) {        return list.get(i);    }    @Override    public long getItemId(int i) {        return i;    }    @Override    public View getView(final int i, View view, ViewGroup viewGroup) {         final ChildViewHolder holder;        if(view==null){            holder =new ChildViewHolder();            view = view.inflate(context, R.layout.ex_child_item, null);            holder.ch2=view.findViewById(R.id.child_checkbox);//子级的选择框            holder.title=view.findViewById(R.id.shop_title);//子级的标题            holder.img=view.findViewById(R.id.shop_img);//图片            holder.et_number=view.findViewById(R.id.et_number);//加减中间的数量            holder.price=view.findViewById(R.id.shop_price);//价格            holder.txt_delete=view.findViewById(R.id.txt_delete);//加减器的减            holder.txt_add=view.findViewById(R.id.txt_add);//加减器的加            holder.txt_delete.setText("-");//设置显示减号            holder.txt_add.setText("+");//设置显示加号            holder.jiajia=view.findViewById(R.id.adv);//设置显示加减器            holder.jiajia.setNumber(list.get(i).getNum());//自定义view修改数字的方法            holder.btn=view.findViewById(R.id.shop_delete);//删除的按钮            view.setTag(holder);        }else{            holder=(ChildViewHolder)view.getTag();        }        holder.jiajia.setOnAddDelClickListener(new AddDeleteView.OnAddDelClickListener() {            @Override            public void onAddClick(View v) {                int number = holder.jiajia.getNumber();                number++;                holder.jiajia.setNumber(number);                list.get(i).setNum(number);                con.changesum(list);//计算的方法            }            @Override            public void onDelClick(View v) {                int number = holder.jiajia.getNumber();                number--;                holder.jiajia.setNumber(number);                list.get(i).setNum(number);                con.changesum(list);            }        });        holder.ch2.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                boolean checked = holder.ch2.isChecked();                list.get(i).setCheckchild(checked);                //获取到Activity                MainActivity con=(MainActivity)context;                for(int i=0;i<list.size();i++){                    boolean checkchild = list.get(i).isCheckchild();                    if(!checkchild){                        con.all_checKbox.setChecked(false);                        break;                    }else{                        con.all_checKbox.setChecked(true);                    }                }                con.changesum(list);            }        });        holder.ch2.setChecked(list.get(i).isCheckchild());        holder.title.setText(list.get(i).getChildTitle());        String img = list.get(i).getImg();        String[] split = img.split("\\|");        Glide.with(context).load(split[0]).into(holder.img);        holder.price.setText(list.get(i).getPrice()+"");        return view;    }     class ChildViewHolder {         CheckBox ch2;         TextView title;         ImageView img;         TextView price;         TextView txt_delete;         TextView et_number;         TextView txt_add;         AddDeleteView jiajia;         Button btn;    }}