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二级购物车逻辑全选、反选、价格数量计算

二级购物车逻辑全选、反选、价格数量计算

作者: losersun | 来源:发表于2017-10-19 19:36 被阅读138次

packagecom.bwie.app.adapter;

importandroid.content.Context;

importandroid.view.View;

importandroid.view.ViewGroup;

importandroid.widget.BaseExpandableListAdapter;

importandroid.widget.Button;

importandroid.widget.CheckBox;

importandroid.widget.ImageView;

importandroid.widget.TextView;

importcom.bwie.app.R;

importcom.bwie.app.bean.Goods;

importcom.bwie.app.bean.Shopper;

importcom.squareup.picasso.Picasso;

importjava.util.List;

/**

* 1. 类的用途

* 2. @author 适配器

* 3. @date 2017/10/19 14:19

*/

public classCarAdapterextendsBaseExpandableListAdapter {

private Context context;//上下文

private List glist;//商家集合

private List> clist;//商品集合

private IListener  listener;//接口回调声明

public CarAdapter(Context context, List glist, List> clist) {

this.context= context;

this.glist= glist;

this.clist= clist;

}

@Override

public intgetGroupCount() {

returnglist.size();

}

@Override

public intgetChildrenCount(intgroupPosition) {

returnclist.get(groupPosition).size();

}

@Override

publicObject getGroup(intgroupPosition) {

returnglist.get(groupPosition);

}

@Override

publicObject getChild(intgroupPosition,intchildPosition) {

returnclist.get(groupPosition).get(childPosition);

}

@Override

public longgetGroupId(intgroupPosition) {

returngroupPosition;

}

@Override

public longgetChildId(intgroupPosition,intchildPosition) {

returnchildPosition;

}

@Override

public booleanhasStableIds() {

return true;

}

@Override

publicView getGroupView(final intgroupPosition,booleanisExpanded, View convertView, ViewGroup parent) {

finalGHolder gHolder;

if(convertView==null){

gHolder=newGHolder();

convertView=View.inflate(context, R.layout.gitem,null);

gHolder.gcheck= (CheckBox) convertView.findViewById(R.id.gcheck);

gHolder.shopper= (TextView) convertView.findViewById(R.id.shoppername);

convertView.setTag(gHolder);

}else{

gHolder= (GHolder) convertView.getTag();

}

gHolder.gcheck.setChecked(glist.get(groupPosition).ischeck());

gHolder.shopper.setText(glist.get(groupPosition).getSellerName());

//二级控制一级

gHolder.gcheck.setOnClickListener(newView.OnClickListener() {

@Override

public voidonClick(View v) {

boolean checked =gHolder.gcheck.isChecked();

//一级控制二级

if(checked){

glist.get(groupPosition).setIscheck(true);

List goodses =clist.get(groupPosition);

for(int i=0;i<goodses.size();i++){

  goodses.get(i).setIscheck(true);

}

}else{

  glist.get(groupPosition).setIscheck(false);

List goodses =clist.get(groupPosition);

for(int i=0;i

goodses.get(i).setIscheck(false);

}

}

//一级控制全选

intnum=0;

for(inti=0;i

if(glist.get(i).ischeck()){

num++;

}

}

if(num==glist.size()){

listener.setCheck(true);

}else{

listener.setCheck(false);

}

notifyDataSetChanged();

js();

}

});

returnconvertView;

}

@Override

publicView getChildView(final intgroupPosition,final intchildPosition,booleanisLastChild, View convertView, ViewGroup parent) {

finalCHolder cHolder;

if(convertView==null){

cHolder=newCHolder();

convertView=View.inflate(context,R.layout.citem,null);

cHolder.ccheck= (CheckBox) convertView.findViewById(R.id.ccheck);

cHolder.name= (TextView) convertView.findViewById(R.id.tv_title);

cHolder.price= (TextView) convertView.findViewById(R.id.tv_price);

cHolder.num= (TextView) convertView.findViewById(R.id.num);

cHolder.imageView= (ImageView) convertView.findViewById(R.id.iv_pic);

cHolder.jia= (Button) convertView.findViewById(R.id.jia);

cHolder.jian= (Button) convertView.findViewById(R.id.jian);

convertView.setTag(cHolder);

}else{

cHolder= (CHolder) convertView.getTag();

}

cHolder.ccheck.setChecked(clist.get(groupPosition).get(childPosition).ischeck());

Picasso.with(context).load(clist.get(groupPosition).get(childPosition).getImage()).into(cHolder.imageView);

cHolder.name.setText(clist.get(groupPosition).get(childPosition).getTitle());

cHolder.price.setText(clist.get(groupPosition).get(childPosition).getPrice()+"");

cHolder.num.setText(clist.get(groupPosition).get(childPosition).getNum()+"");

cHolder.ccheck.setOnClickListener(newView.OnClickListener() {

@Override

public voidonClick(View v) {

booleanchecked =cHolder.ccheck.isChecked();

if(checked){

clist.get(groupPosition).get(childPosition).setIscheck(true);

}else{

clist.get(groupPosition).get(childPosition).setIscheck(false);

}

//二级全选,一级全选

intnum=0;

for(inti=0;i

if(clist.get(groupPosition).get(i).ischeck()){

num++;

}

}

if(num==clist.get(groupPosition).size()){

glist.get(groupPosition).setIscheck(true);

}else{

glist.get(groupPosition).setIscheck(false);

}

//二级控制全选

intn=0;

for(inti=0;i

if(glist.get(i).ischeck()){

n++;

}

}

if(n==glist.size()){

listener.setCheck(true);

}else{

listener.setCheck(false);

}

notifyDataSetChanged();

js();

}

});

returnconvertView;

}

@Override

public booleanisChildSelectable(intgroupPosition,intchildPosition) {

return true;

}

classGHolder{

CheckBoxgcheck;

TextViewshopper;

}

classCHolder{

CheckBoxccheck;

TextViewname,price,num;

ImageViewimageView;

Buttonjia,jian;

}

//计算价钱和数量

public voidjs(){

intnum=0;//数量

doubleprice=0;//价钱

for(inti=0;i

List list =clist.get(i);

for(intj=0;j

if(list.get(j).ischeck()){

num+=list.get(j).getNum();

price+=list.get(j).getPrice()*list.get(j).getNum();

}

}

listener.setNum(num);

listener.setPrice(price);

}

};

//接口回调

public interfaceIListener{

//设置价格

voidsetPrice(doubleprice);

//设置数量

voidsetNum(intnum);

//设置全选监听

voidsetCheck(booleanischeck);

}

public voidsetListener(IListener listener) {

this.listener= listener;

}

}

//点击全选所有商品选中

booleanchecked =both.isChecked();

if(checked){

for(inti=0;i

glist.get(i).setIscheck(true);

}

for(inti=0;i

List goodsList =clist.get(i);

for(intj=0;j

goodsList.get(j).setIscheck(true);

}

}

}else{

for(inti=0;i

glist.get(i).setIscheck(false);

}

for(inti=0;i

List goodsList =clist.get(i);

for(intj=0;j

goodsList.get(j).setIscheck(false);

}

}

}

js();

adapter.notifyDataSetChanged();

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