一级购物车代码

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////////////////////////////////////////需要的属性
package com.bwei.listview.bean;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 +                '}';    }}
///////////////////////////////////////////////////接口
public interface CallBack {    void onSuccess(String tag,Object o);    void onFailed(Exception e);}
////////////////////////////////////////////////////接口
public interface Iv {    void onSuccess(List<GoodsBean> list);    void onFiled( Exception e);}
/////////////////////////////////////////////////////自定义View
package com.bwei.listview.myview;/** * Created by HQ on 2017/11/21. */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;    }}

///////////////////////////////////////////////////////P层
package com.bwei.listview.presenter;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  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");    }    }

///////////////////////////////////////////适配器
package com.bwei.listview.adapter;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 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;    }}

/////////////////////////////////////////////////MainActivity
package com.bwei.listview;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) {    }}

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