package com.sqh.market.activity;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.lidroid.xutils.ViewUtils;
import com.sqh.market.R;
import com.sqh.market.adapter.ShoppingCartAdapter;
import com.sqh.market.constant.Constants;
import com.sqh.market.models.CartModel;
import com.sqh.market.utils.NetUtil;
import com.sqh.market.utils.SharedPreferencesUtil;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.RequestBody;
import okhttp3.Response;
public class CartActivity extends Activity implements View.OnClickListener,
ShoppingCartAdapter.CheckInterface, ShoppingCartAdapter.ModifyCountInterface {
private static final String TAG = "CartActivity";
/**
* 返回按钮
*/
private ImageView btnBack;
/**
* 全选框
*/
private CheckBox ckAll;
/**
* 总额
*/
private TextView tvShowPrice;
/**
* 结算
*/
private TextView tvSettlement;
/**
* 编辑按钮
*/
private TextView btnEdit;
/**
* 商品列表
*/
private ListView commodityListView;
/**
* adapter
*/
private ShoppingCartAdapter shoppingCartAdapter;
private boolean flag = false;
private List<CartModel> shoppingCartBeanList = new ArrayList<>();
private double totalPrice = 0.00;// 购买的商品总价
private int totalCount = 0;// 购买的商品总数量
/**
* context
*/
private Context mContext;
/**
* uId
*/
private Integer uId;
/**
* 用于从网络初始化UI的handler
*/
private Handler uiHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
//定义一个弹出层dialog
AlertDialog alert = new AlertDialog.Builder(mContext).create();
switch (msg.what) {
case -2:
//未登录，需要登录！
Toast.makeText(mContext, "您还未登录！请先登录！", Toast.LENGTH_SHORT).show();
break;
case -1:
//网络请求失败
Toast.makeText(mContext, "网络请求失败！"
, Toast.LENGTH_SHORT).show();
break;
case 0:
//网络请求成功，但是返回状态为失败
Toast.makeText(mContext, msg.obj == null ? "请求处理失败！获取商品数据失败！"
: msg.obj.toString(), Toast.LENGTH_SHORT).show();
break;
case 1:
//网络请求购物车信息数据成功
shoppingCartAdapter = new ShoppingCartAdapter(CartActivity.this);
shoppingCartAdapter.setCheckInterface(CartActivity.this);
shoppingCartAdapter.setModifyCountInterface(CartActivity.this);
commodityListView.setAdapter(shoppingCartAdapter);
shoppingCartAdapter.setShoppingCartBeanList(shoppingCartBeanList);
break;
case 2:
//购买结算
alert.setTitle("提示");
alert.setMessage(msg.obj == null ? "购买请求处理失败！"
: msg.obj.toString());
alert.setButton(DialogInterface.BUTTON_POSITIVE, "确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//finish掉购物车窗口
finish();
}
});
alert.show();
break;
case 3:
//删除商品
alert.setTitle("提示");
alert.setMessage(msg.obj == null ? "从购物车中移除商品失败！"
: msg.obj.toString());
alert.setButton(DialogInterface.BUTTON_POSITIVE, "确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alert.show();
break;
case 4:
Toast.makeText(mContext, msg.obj == null ? "刷新购物车数据失败！"
: msg.obj.toString(), Toast.LENGTH_SHORT).show();
break;
default:
break;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_cart);
ViewUtils.inject(this);
mContext = this;
//从SharedPreferences中获取用户id
uId = (Integer) SharedPreferencesUtil
.get(mContext, "userInfo", "userId", 0);
//初始化绑定控件
init();
//初始化数据
initData();
}
/**
* 初始化绑定控件
*/
private void init() {
btnBack = findViewById(R.id.cart_back);
ckAll = findViewById(R.id.ck_all);
tvShowPrice = findViewById(R.id.tv_show_price);
tvSettlement = findViewById(R.id.tv_settlement);
btnEdit = findViewById(R.id.btn_edit);
commodityListView = findViewById(R.id.list_shopping_cart);
btnEdit.setText("编辑");
btnEdit.setOnClickListener(this);
ckAll.setOnClickListener(this);
tvSettlement.setOnClickListener(this);
btnBack.setOnClickListener(this);
}
/**
* 从网络获取购物车数据
*/
protected void initData() {
//拼接url
String url = Constants.BASE_URL + Constants.GET_QUERY_CART_URL + "&uId=" + uId;
NetUtil.doGet(url, new Callback() {
@Override
public void onFailure(Call call, IOException e) {
uiHandler.sendEmptyMessage(-1);
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String result = response.body().string().trim();
JSONObject object = JSON.parseObject(result);
Message message = Message.obtain();
if (object.getBoolean("flag")) {
message.what = 1;
//解析拿到data中的lists数据
JSONArray lists = ((JSONObject) object.get("data")).getJSONArray("lists");
//将list传递给数据集
shoppingCartBeanList = JSONArray.parseArray(JSON.toJSONString(lists), CartModel.class);
} else {
message.what = 0;
}
uiHandler.sendMessage(message);
}
});
}
@Override
public void onClick(View v) {
switch (v.getId()) {
//全选按钮
case R.id.ck_all:
if (shoppingCartBeanList.size() != 0) {
if (ckAll.isChecked()) {
for (int i = 0; i < shoppingCartBeanList.size(); i++) {
shoppingCartBeanList.get(i).setChoosed(true);
}
shoppingCartAdapter.notifyDataSetChanged();
} else {
for (int i = 0; i < shoppingCartBeanList.size(); i++) {
shoppingCartBeanList.get(i).setChoosed(false);
}
shoppingCartAdapter.notifyDataSetChanged();
}
}
statistics();
break;
case R.id.btn_edit:
flag = !flag;
if (flag) {
//编辑状态
btnEdit.setText("完成");
shoppingCartAdapter.isShow(false);
} else {
//编辑完成状态
btnEdit.setText("编辑");
shoppingCartAdapter.isShow(true);
//刷新购物车数据
refreshCart();
}
break;
case R.id.tv_settlement: //结算
pay();
break;
case R.id.cart_back:
finish();
break;
}
}
/**
* 在编辑完成后，刷新购物车
*/
private void refreshCart() {
String cIds = "";
String numbers = "";
//选中的需要提交的商品清单
for (CartModel bean : shoppingCartBeanList) {
//拼接商品id
cIds += bean.getId() + ",";
//拼接商品数量
numbers += bean.getNumber() + ",";
}
//清理末尾逗号
cIds = cIds.substring(0, cIds.lastIndexOf(","));
numbers = numbers.substring(0, numbers.lastIndexOf(","));
//构造url
String url = Constants.BASE_URL + Constants.POST_REFRESH_CART_URL;
//构造请求体
RequestBody body = new FormBody.Builder()
.add("uId", uId + "")
.add("cIds", cIds)
.add("numbers", numbers)
.build();
//向服务器发送刷新购物车数据请求
NetUtil.doPost(url, body, new Callback() {
@Override
public void onFailure(Call call, IOException e) {
uiHandler.sendEmptyMessage(-1);
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String result = response.body().string().trim();
Message message = Message.obtain();
JSONObject object = JSON.parseObject(result);
if (object.getBoolean("flag")) {
message.what = 4;
message.obj = object.getString("message");
//重新刷新购物车数据
initData();
} else {
message.what = 0;
}
uiHandler.sendMessage(message);
}
});
}
/**
* 结算订单、支付
*/
private void pay() {
String cIds = "";
String numbers = "";
//选中的需要提交的商品清单
for (CartModel bean : shoppingCartBeanList) {
boolean choosed = bean.isChoosed();
if (choosed) {
//拼接商品id
cIds += bean.getId() + ",";
//拼接商品数量
numbers += bean.getNumber() + ",";
}
}
//清理末尾逗号
cIds = cIds.substring(0, cIds.lastIndexOf(","));
numbers = numbers.substring(0, numbers.lastIndexOf(","));
//构造url
String url = Constants.BASE_URL + Constants.POST_BUY_URL;
//构造请求体
RequestBody body = new FormBody.Builder()
.add("uId", uId + "")
.add("cIds", cIds)
.add("numbers", numbers)
.build();
//向服务器发送购买请求
NetUtil.doPost(url, body, new Callback() {
@Override
public void onFailure(Call call, IOException e) {
uiHandler.sendEmptyMessage(-1);
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String result = response.body().string().trim();
Message message = Message.obtain();
JSONObject object = JSON.parseObject(result);
if (object.getBoolean("flag")) {
message.what = 2;
message.obj = object.getString("message");
} else {
message.what = 0;
}
uiHandler.sendMessage(message);
}
});
}
/**
* 单选
*
* @param position 组元素位置
* @param isChecked 组元素选中与否
*/
@Override
public void checkGroup(int position, boolean isChecked) {
shoppingCartBeanList.get(position).setChoosed(isChecked);
if (isAllCheck()) {
ckAll.setChecked(true);
} else {
ckAll.setChecked(false);
}
shoppingCartAdapter.notifyDataSetChanged();
statistics();
}
/**
* 遍历list集合
*
* @return
*/
private boolean isAllCheck() {
for (CartModel group : shoppingCartBeanList) {
if (!group.isChoosed())
return false;
}
return true;
}
/**
* 统计操作
* 1.先清空全局计数器<br>
* 2.遍历所有子元素，只要是被选中状态的，就进行相关的计算操作
* 3.给底部的textView进行数据填充
*/
public void statistics() {
totalCount = 0;
totalPrice = 0.00;
for (int i = 0; i < shoppingCartBeanList.size(); i++) {
CartModel model = shoppingCartBeanList.get(i);
if (model.isChoosed()) {
totalCount++;
totalPrice += model.getCommodityPrice() * model.getNumber();
}
}
//保留两位小数
DecimalFormat df = new DecimalFormat("#.00");
String str = df.format(totalPrice);
tvShowPrice.setText("合计:" + str);
tvSettlement.setText("结算(" + totalCount + ")");
}
/**
* 增加
*
* @param position 组元素位置
* @param showCountView 用于展示变化后数量的View
* @param isChecked 子元素选中与否
*/
@Override
public void doIncrease(int position, View showCountView, boolean isChecked) {
CartModel model = shoppingCartBeanList.get(position);
int currentCount = model.getNumber();
currentCount++;
model.setNumber(currentCount);
((TextView) showCountView).setText(currentCount + "");
shoppingCartAdapter.notifyDataSetChanged();
statistics();
}
/**
* 删减
*
* @param position 组元素位置
* @param showCountView 用于展示变化后数量的View
* @param isChecked 子元素选中与否
*/
@Override
public void doDecrease(int position, View showCountView, boolean isChecked) {
CartModel model = shoppingCartBeanList.get(position);
int currentCount = model.getNumber();
if (currentCount == 1) {
return;
}
currentCount--;
model.setNumber(currentCount);
((TextView) showCountView).setText(currentCount + "");
shoppingCartAdapter.notifyDataSetChanged();
statistics();
}
/**
* 删除
*
* @param position
*/
@Override
public void childDelete(int position) {
//向服务器发送删除请求
String url = Constants.BASE_URL + Constants.POST_DELETE_URL;
//构造请求体
CartModel model = shoppingCartBeanList.get(position);
int currentCount = model.getNumber();
RequestBody body = new FormBody.Builder()
.add("uId", uId + "")
.add("cIds", model.getId() + "")
.add("numbers", currentCount + "")
.build();
NetUtil.doPost(url, body, new Callback() {
@Override
public void onFailure(Call call, IOException e) {
uiHandler.sendEmptyMessage(-1);
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String result = response.body().string().trim();
JSONObject object = JSON.parseObject(result);
Message message = Message.obtain();
if (object.getBoolean("flag")) {
message.what = 3;
message.obj = object.getString("message");
} else {
message.what = 0;
}
uiHandler.sendMessage(message);
}
});
//listView中remove掉item
shoppingCartBeanList.remove(position);
shoppingCartAdapter.notifyDataSetChanged();
statistics();
}
}
