////////////////////////////////////////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) {
}
}