购物车操作增删改查
MainActivity
private TextView shoppingcart_text;
private RelativeLayout relativelayout;
private ExpandableListView expandableListView;
private CheckBox checkAll;
private TextView sun;
private Button shancuh;
private Button goumai;
private RelativeLayout relative;
private GetCartPresenter getCartPresenter;
private QueryBean queryBean;
//定义handler
@SuppressLint("HandlerLeak")
Handler handler = new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
if (msg.what == 0) {
countPriceBean = (CountPriceBean) msg.obj;
//设置总金额
sun.setText(countPriceBean.getPriceString());
}else if(msg.what==1){
QueryBean queryBean = (QueryBean) msg.obj;
Log.d("TAG","Tag+++++++++++++"+queryBean);
//判断当前所有子条目是否选中来决定一组的选中状态
for (int i = 0; i < queryBean.getData().size(); i++) {
if (ischilditemcheck(i)) {
//如果子条目都选中为,true
queryBean.getData().get(i).setGroupChecked(true);
}
}
//判断所有组是不是选中,来显示全选是不是选中
checkAll.setChecked(ischeclAll());
//设置适配器
if (queryBean!=null){
myAdapter = new MyAdapter(MainActivity.this, queryBean,handler,getCartPresenter,sp);
expandableListView.setAdapter(myAdapter);
}
//展开组
for (int i=0;i params = new HashMap<>();
params.put("uid","4575");
params.put("pid", String.valueOf(queryBean.getData().get(i).getList().get(j).getPid()));
RetrofitUtil.delcards(params, new Callback() {
@Override
public void onResponse(Call call, Response response) {
if (response.isSuccessful()){
getCartPresenter.getNetWrok();
}
}
@Override
public void onFailure(Call call, Throwable t) {
}
});
}
}
}
break;
case R.id.goumai:
break;
case R.id.checkAll:
Log.i("tag","tagtagtagtagtagtagtagtagtag");
myAdapter.setAllChildState(checkAll.isChecked());
ischeclAll();
break;
}
}
@Override
public void onSeccess(QueryBean queryBean) {
if (queryBean!=null){
this.queryBean = queryBean;
Message msg = Message.obtain();
msg.what=1;
msg.obj=queryBean;
handler.sendMessage(msg);
}else{
Toast.makeText(MainActivity.this,"购物车为空",Toast.LENGTH_SHORT).show();
}
}
//判断当前子条目的选中状态
private boolean ischilditemcheck(int groupposition) {
for (int i=0;i Activity布局
import android.content.Context;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.CheckBox;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.facebook.drawee.view.SimpleDraweeView;
import com.luobing.jinjieweek2.R;
import com.luobing.jinjieweek2.model.bean.CountPriceBean;
import com.luobing.jinjieweek2.model.bean.QueryBean;
import com.luobing.jinjieweek2.model.bean.UpdataBean;
import com.luobing.jinjieweek2.model.util.RetrofitUtil;
import com.luobing.jinjieweek2.presenter.GetCartPresenter;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by Administrator on 2018/1/6.
*/
public class MyAdapter extends BaseExpandableListAdapter{
Context context;
QueryBean getCartBean;
Handler handler;
int childI;
private int child_size;
GetCartPresenter getCartPresenter;
private int childitemListSize;
private int index;
private SharedPreferences sp;
final String uid ="4575";
//
public MyAdapter(Context context, QueryBean getCartBean, Handler handler, GetCartPresenter getCartPresenter, SharedPreferences sp) {
this.context=context;
this.getCartBean=getCartBean;
this.handler=handler;
this.getCartPresenter=getCartPresenter;
this.sp=sp;
}
@Override
public int getGroupCount() {
return getCartBean.getData().size();
}
@Override
public int getChildrenCount(int groupPosition) {
return getCartBean.getData().get(groupPosition).getList().size();
}
@Override
public Object getGroup(int groupPosition) {
return getCartBean.getData().get(groupPosition);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return getCartBean.getData().get(groupPosition).getList().get(childPosition);
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
//查找group一级控件的方法
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View view, ViewGroup parent) {
//获得集合
final List data = getCartBean.getData();
final GroupHolder groupHolder;
if (view==null){
view = View.inflate(context, R.layout.group_item_layout,null);
groupHolder = new GroupHolder();
groupHolder.check_group=view.findViewById(R.id.group_check);
groupHolder.text_group=view.findViewById(R.id.group_text_title);
view.setTag(groupHolder);
}else{
groupHolder = (GroupHolder) view.getTag();
}
//找到集合中的一个
final QueryBean.DataBean dataBean = data.get(groupPosition);
//赋值
groupHolder.check_group.setChecked(dataBean.isGroupChecked());
groupHolder.text_group.setText(dataBean.getSellerName());
//设置一级的点击事件
groupHolder.check_group.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
child_size = dataBean.getList().size();
childI = 0;
//更新购物车
updateAllInGroup(groupHolder.check_group.isChecked(),dataBean);
}
});
return view;
}
//更新购物车的方法
public void updateAllInGroup(final boolean checked, final QueryBean.DataBean dataBean) {
//拿到子条目集合
QueryBean.DataBean.ListBean listBean = dataBean.getList().get(childI);
Map params = new HashMap<>();
params.put("uid","4575");
params.put("sellerid", String.valueOf(listBean.getSellerid()));
params.put("pid", String.valueOf(listBean.getPid()));
params.put("selected", String.valueOf(checked? 1:0));
RetrofitUtil.updatacards(params,new retrofit2.Callback() {
@Override
public void onResponse(retrofit2.Call call, retrofit2.Response response) {
if (response.isSuccessful()){
childI=childI+1;
//如果小于,则递归
if (childI call, Throwable t) {
}
});
}
//查找child二级控件的方法
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View view, ViewGroup parent) {
final ChildHolder childHolder;
if (view == null) {
view = View.inflate(context, R.layout.child_item_layout, null);
childHolder = new ChildHolder();
childHolder.check_child = view.findViewById(R.id.child_check);
childHolder.simpleDraweeView = view.findViewById(R.id.simpleDraweeView);
childHolder.text_title = view.findViewById(R.id.child_tetle);
childHolder.text_price = view.findViewById(R.id.text_price);
childHolder.text_jian = view.findViewById(R.id.child_jian);
childHolder.text_add = view.findViewById(R.id.child_add);
childHolder.text_num = view.findViewById(R.id.child_num);
childHolder.linearLayout=view.findViewById(R.id.bianji_layout);
childHolder.text_bianji=view.findViewById(R.id.bianjibtn);
childHolder.addjian=view.findViewById(R.id.addjian);
childHolder.text_datermine = view.findViewById(R.id.datermine);
childHolder.text_child_shuliang = view.findViewById(R.id.child_shuliang);
//复用
view.setTag(childHolder);
} else {
childHolder = (ChildHolder) view.getTag();
}
boolean flag = sp.getBoolean("flag", false);
if(flag){
childHolder.linearLayout.setVisibility(View.VISIBLE);
childHolder.addjian.setVisibility(View.GONE);
}else{
childHolder.linearLayout.setVisibility(View.GONE);
childHolder.addjian.setVisibility(View.VISIBLE);
}
final QueryBean.DataBean.ListBean listBean = getCartBean.getData().get(groupPosition).getList().get(childPosition);
//赋值
childHolder.text_title.setText(listBean.getTitle());
childHolder.text_price.setText(listBean.getBargainPrice()+"");
childHolder.text_num.setText(listBean.getNum()+"");
childHolder.text_child_shuliang.setText(listBean.getNum()+"");
childHolder.check_child.setChecked(listBean.getSelected()==0? false:true);
Uri uri = Uri.parse(listBean.getImages().split("\\|")[0]);
childHolder.simpleDraweeView.setImageURI(uri);
//设置编辑的点击事件
childHolder.text_bianji.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
childHolder.linearLayout.setVisibility(View.GONE);
childHolder.addjian.setVisibility(View.VISIBLE);
SharedPreferences.Editor edit = sp.edit();
edit.putBoolean("flag",false);
edit.commit();
}
});
//编辑之后确定的点击事件
childHolder.text_datermine.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
childHolder.linearLayout.setVisibility(View.VISIBLE);
childHolder.addjian.setVisibility(View.GONE);
SharedPreferences.Editor edit = sp.edit();
edit.putBoolean("flag",true);
edit.commit();
}
});
//设置点击事件
childHolder.check_child.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
updateCart(listBean,true,false);
}
});
//减号
childHolder.text_jian.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (listBean.getNum()==1){
return;
}else{
updateCart(listBean,false,false);
}
}
});
//加号
childHolder.text_add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
updateCart(listBean,false,true);
}
});
return view;
}
//更新购物车的
private void updateCart(QueryBean.DataBean.ListBean listBean, boolean upstate, boolean addorjian) {
Map params = new HashMap<>();
params.put("uid","4575");
params.put("sellerid", String.valueOf(listBean.getSellerid()));
params.put("pid", String.valueOf(listBean.getPid()));
params.put("selected", String.valueOf(listBean.getSelected()));
Toast.makeText(context,"当前状态"+upstate,Toast.LENGTH_SHORT).show();
params.put("num",listBean.getNum()+"");
if (upstate){
params.put("selected", String.valueOf(listBean.getSelected()==0? 1:0));
}else{
if (addorjian){
params.put("num",listBean.getNum()+1+"");
}else{
params.put("num",listBean.getNum()-1+"");
}
}
RetrofitUtil.updatacards(params, new retrofit2.Callback() {
@Override
public void onResponse(retrofit2.Call call, retrofit2.Response response) {
if (response.isSuccessful()){
getCartPresenter.getNetWrok();
}
}
@Override
public void onFailure(retrofit2.Call call, Throwable t) {
}
});
}
/**
* 计算价格和数量 并发送显示
*/
public void sendPriceAndCount() {
double price = 0;
int count = 0;
//通过判断二级列表是否勾选,,,,计算价格数量
for (int i=0;i allList = new ArrayList<>();
for (int i=0;i allList, final boolean checked) {
QueryBean.DataBean.ListBean listBean = allList.get(index);//0
//更新的操作
Map params = new HashMap<>();
params.put("num",listBean.getNum()+1+"");
params.put("uid","4575");
params.put("sellerid", String.valueOf(listBean.getSellerid()));
params.put("pid", String.valueOf(listBean.getPid()));
params.put("selected", String.valueOf(checked ? 1:0));
params.put("num", String.valueOf(listBean.getNum()));
RetrofitUtil.updatacards(params, new retrofit2.Callback() {
@Override
public void onResponse(retrofit2.Call call, retrofit2.Response response) {
if (response.isSuccessful()){
index = index +1;
if (index < childitemListSize){
updateAllChild(allList,checked);
}else {
//查询购物车
getCartPresenter.getNetWrok();
}
}
}
@Override
public void onFailure(retrofit2.Call call, Throwable t) {
}
});
}
//viewHolder
private class GroupHolder{
CheckBox check_group;
TextView text_group;
}
private class ChildHolder{
CheckBox check_child;
SimpleDraweeView simpleDraweeView;
LinearLayout linearLayout;
LinearLayout addjian;
TextView text_datermine;
TextView text_bianji;
TextView text_title;
TextView text_price;
TextView text_jian;
TextView text_num;
TextView text_add;
TextView text_child_shuliang;
}
import com.luobing.jinjieweek2.model.bean.AddBean;
import com.luobing.jinjieweek2.model.bean.DelCardBean;
import com.luobing.jinjieweek2.model.bean.QueryBean;
import com.luobing.jinjieweek2.model.bean.UpdataBean;
import java.util.HashMap;
import java.util.Map;
import okhttp3.OkHttpClient;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;
import retrofit2.http.FieldMap;
import retrofit2.http.FormUrlEncoded;
import retrofit2.http.POST;
//import retrofit.GsonConverterFactory;
//import retrofit.Retrofit;
/**
* Created by Administrator on 2018/1/6.
*/
public class RetrofitUtil {
private static Retrofit retrofit = null;
private RetrofitUtil() {
}
public static Retrofit getInstance(){
OkHttpClient instance = OkhttpUtil.getInstance();
if (retrofit==null){
synchronized (RetrofitUtil.class){
retrofit = new Retrofit.Builder()
.baseUrl(Api.URR_BASE)
.client(OkhttpUtil.getInstance())
.addConverterFactory(GsonConverterFactory.create())
.build();
}
}
return retrofit;
}
interface ServerInterface {
@FormUrlEncoded
@POST("product/getCarts")
Call queryCarts(@FieldMap Map par);
@FormUrlEncoded
@POST("product/addCart")
Call addCarts(@FieldMap Map par);
@FormUrlEncoded
@POST("product/updateCarts")
Call updataCarts(@FieldMap Map par);
@FormUrlEncoded
@POST("product/deleteCart")
Call delCarts(@FieldMap Map par);
}
/**
* 参数化声明
* sellerid string 是 商户id
*pid string 是 商品id
*num string 是 商品数量
*selected string 是 是否选中
* @param uid
* @param callback
*/
/**
* 查询购物车的方法
*/
public static void quertCarts(Map map,Callback callback) {
Call cartsBeanCall = getInstance().create(ServerInterface.class).queryCarts(map);
cartsBeanCall.enqueue(callback);
}
//添加购物车的方法
public static void addcards(String pid,Map map,Callback callback){
//执行添加的方法
Call addBeanCall = getInstance().create(ServerInterface.class).addCarts(map);
addBeanCall.enqueue(callback);
}
//更新购物车的方法
public static void updatacards(Map map,Callback callback){
//执行添加的方法
Call updataBeanCall = getInstance().create(ServerInterface.class).updataCarts(map);
updataBeanCall.enqueue(callback);
}
//删除购物车的方法
public static void delcards(Map map,Callback callback){
//执行添加的方法
Call delCardBeanCall = getInstance().create(ServerInterface.class).delCarts(map);
delCardBeanCall.enqueue(callback);
} okhttputil工具
import android.os.Environment;
import android.util.Log;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import okhttp3.Cache;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.Interceptor;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
/**
* Created by Administrator on 2018/1/6.
*/
public class OkhttpUtil {
public static final int CONNECTTIME = 0b1010;
//私有静态成员变量,私有构造方法
private static OkHttpClient okHttpClient=null;
private OkhttpUtil() {
}
public static OkHttpClient getInstance(){
if (okHttpClient==null){
synchronized (OkhttpUtil.class){
//指定缓存路径
File file = new File(Environment.getExternalStorageDirectory() , "chche");
//指定缓存大小
int chchesize = 10*1024*1024;
okHttpClient = new OkHttpClient.Builder()
.readTimeout(CONNECTTIME, TimeUnit.SECONDS)//读取超时
.connectTimeout(CONNECTTIME,TimeUnit.SECONDS)
.writeTimeout(CONNECTTIME,TimeUnit.SECONDS)
.cache(new Cache(file.getAbsoluteFile(),chchesize))
.build();
}
}
return okHttpClient;
}
/**
* get请求
* 参数1 url
* 参数2 回调Callback
*/
public static void doGet(String url, Callback callback) {
//创建OkHttpClient请求对象
OkHttpClient okHttpClient = getInstance();
//创建Request
Request request = new Request.Builder().url(url).build();
//得到Call对象
Call call = okHttpClient.newCall(request);
//执行异步请求
call.enqueue(callback);
}