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package com.llw.cart;
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import androidx.annotation.NonNull;
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import androidx.appcompat.app.AlertDialog;
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import androidx.appcompat.app.AppCompatActivity;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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import android.annotation.SuppressLint;
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import android.content.DialogInterface;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.View;
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import android.widget.ImageView;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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import android.widget.Toast;
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import com.chad.library.adapter.base.BaseQuickAdapter;
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import com.google.gson.Gson;
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import com.llw.cart.adapter.StoreAdapter;
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import com.llw.cart.bean.CarResponse;
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import com.llw.cart.util.Constant;
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import com.llw.cart.util.GoodsCallback;
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import com.scwang.smartrefresh.layout.SmartRefreshLayout;
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import com.scwang.smartrefresh.layout.api.RefreshLayout;
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import com.scwang.smartrefresh.layout.listener.OnRefreshListener;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* 购物车
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*
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* @author llw
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*/
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public class MainActivity extends AppCompatActivity implements GoodsCallback, View.OnClickListener {
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public static final String TAG = "MainActivity";
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private RecyclerView rvStore;
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private StoreAdapter storeAdapter;
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private List<CarResponse.OrderDataBean> mList = new ArrayList<>();
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private TextView tvEdit;//编辑
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private ImageView ivCheckedAll;//全选
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private TextView tvTotal;//合计价格
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private TextView tvSettlement;//结算
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private LinearLayout layEdit;//编辑底部布局
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private TextView tvShareGoods;//分享商品
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private TextView tvCollectGoods;//收藏商品
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private TextView tvDeleteGoods;//删除商品
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private boolean isEdit = false;//是否编辑
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private boolean isAllChecked = false;//是否全选
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private List<Integer> shopIdList = new ArrayList<>();//店铺列表
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private double totalPrice = 0.00;//商品总价
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private int totalCount = 0;//商品总数量
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private AlertDialog dialog;//弹窗
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private boolean isHaveGoods = false;//购物车是否有商品
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private SmartRefreshLayout refresh;//刷新布局
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private LinearLayout layEmpty;//空布局
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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initView();
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}
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/**
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* 初始化
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*/
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private void initView() {
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//设置亮色状态栏模式 systemUiVisibility在Android11中弃用了，可以尝试一下。
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getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
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rvStore = findViewById(R.id.rv_store);
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tvEdit = findViewById(R.id.tv_edit);
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ivCheckedAll = findViewById(R.id.iv_checked_all);
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tvTotal = findViewById(R.id.tv_total);
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tvSettlement = findViewById(R.id.tv_settlement);
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layEdit = findViewById(R.id.lay_edit);
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tvShareGoods = findViewById(R.id.tv_share_goods);
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tvCollectGoods = findViewById(R.id.tv_collect_goods);
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tvDeleteGoods = findViewById(R.id.tv_delete_goods);
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refresh = findViewById(R.id.refresh);
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layEmpty = findViewById(R.id.lay_empty);
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//禁用下拉刷新和上拉加载更多
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refresh.setEnableRefresh(false);
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refresh.setEnableLoadMore(false);
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//下拉刷新监听
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refresh.setOnRefreshListener(refreshLayout -> initView());
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tvEdit.setOnClickListener(this);
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ivCheckedAll.setOnClickListener(this);
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tvSettlement.setOnClickListener(this);
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tvShareGoods.setOnClickListener(this);
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tvCollectGoods.setOnClickListener(this);
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tvDeleteGoods.setOnClickListener(this);
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CarResponse carResponse = new Gson().fromJson(Constant.CAR_JSON, CarResponse.class);
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mList.addAll(carResponse.getOrderData());
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storeAdapter = new StoreAdapter(R.layout.item_store, mList, this);
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rvStore.setLayoutManager(new LinearLayoutManager(this));
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rvStore.setAdapter(storeAdapter);
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//店铺点击
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storeAdapter.setOnItemChildClickListener(new BaseQuickAdapter.OnItemChildClickListener() {
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@Override
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public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
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CarResponse.OrderDataBean storeBean = mList.get(position);
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if (view.getId() == R.id.iv_checked_store) {
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storeBean.setChecked(!storeBean.isChecked());
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storeAdapter.notifyDataSetChanged();
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//传递选中店铺的id
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if (storeBean.isChecked()) {
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//全选商品
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storeAdapter.controlGoods(storeBean.getShopId(), true);
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//添加到列表中
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if (!shopIdList.contains(storeBean.getShopId())) {
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//如果列表中没有这个店铺Id且当前店铺为选中状态
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shopIdList.add(storeBean.getShopId());
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}
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} else {
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//清除全选商品
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storeAdapter.controlGoods(storeBean.getShopId(), false);
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//从列表中清除
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if (shopIdList.contains(storeBean.getShopId())) {
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shopIdList.remove((Integer) storeBean.getShopId());
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}
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}
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//控制页面全选
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controlAllChecked();
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}
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}
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});
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//有商品
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isHaveGoods = true;
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//下拉加载数据完成后，关闭下拉刷新动画
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refresh.finishRefresh();
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//隐藏布局
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layEmpty.setVisibility(View.GONE);
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}
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/**
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* 控制页面全选 与页面全选进行交互
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*/
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private void controlAllChecked() {
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if (shopIdList.size() == mList.size() && mList.size() != 0) {
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//全选
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ivCheckedAll.setImageDrawable(getDrawable(R.drawable.ic_checked));
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isAllChecked = true;
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} else {
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//不全选
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ivCheckedAll.setImageDrawable(getDrawable(R.drawable.ic_check));
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isAllChecked = false;
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}
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//计算价格
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calculationPrice();
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}
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/**
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* 选中店铺
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*
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* @param shopId 店铺id
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*/
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@Override
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public void checkedStore(int shopId, boolean state) {
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for (CarResponse.OrderDataBean bean : mList) {
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//遍历
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if (shopId == bean.getShopId()) {
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bean.setChecked(state);
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storeAdapter.notifyDataSetChanged();
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//记录选中店铺的shopid,添加到一个列表中。
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if (!shopIdList.contains(bean.getShopId()) && state) {
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//如果列表中没有这个店铺Id且当前店铺为选中状态
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shopIdList.add(bean.getShopId());
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} else {
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if (shopIdList.contains(bean.getShopId())) {
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//通过list.indexOf获取属性的在列表中的下标，不过强转Integer更简洁
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shopIdList.remove((Integer) bean.getShopId());
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}
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}
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}
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}
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//控制页面全选
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controlAllChecked();
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}
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/**
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* 商品价格
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*/
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@Override
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public void calculationPrice() {
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//每次计算之前先置零
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totalPrice = 0.00;
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totalCount = 0;
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//循环购物车中的店铺列表
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for (int i = 0; i < mList.size(); i++) {
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CarResponse.OrderDataBean orderDataBean = mList.get(i);
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//循环店铺中的商品列表
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for (int j = 0; j < orderDataBean.getCartlist().size(); j++) {
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CarResponse.OrderDataBean.CartlistBean cartlistBean = orderDataBean.getCartlist().get(j);
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//当有选中商品时计算数量和价格
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if (cartlistBean.isChecked()) {
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totalCount++;
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totalPrice += cartlistBean.getPrice() * cartlistBean.getCount();
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}
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}
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}
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tvTotal.setText("￥" + totalPrice);
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tvSettlement.setText(totalCount == 0 ? "结算" : "结算(" + totalCount + ")");
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}
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/**
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* 页面控件点击事件
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*
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* @param v
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*/
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@Override
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public void onClick(View v) {
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switch (v.getId()) {
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case R.id.tv_edit://编辑
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if (!isHaveGoods) {
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showMsg("当前购物车空空如也~");
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return;
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}
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if (isEdit) {
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tvEdit.setText("编辑");
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layEdit.setVisibility(View.GONE);
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isEdit = false;
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} else {
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tvEdit.setText("完成");
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layEdit.setVisibility(View.VISIBLE);
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isEdit = true;
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}
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break;
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case R.id.iv_checked_all://全选
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if (!isHaveGoods) {
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showMsg("当前购物车空空如也~");
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return;
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}
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if (isAllChecked) {
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//取消全选
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isSelectAllStore(false);
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} else {
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//全选
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isSelectAllStore(true);
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}
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break;
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case R.id.tv_settlement://结算
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if (!isHaveGoods) {
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showMsg("当前购物车空空如也~");
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return;
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}
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if (totalCount == 0) {
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showMsg("请选择要结算的商品");
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return;
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}
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//弹窗
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dialog = new AlertDialog.Builder(this)
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.setMessage("总计:" + totalCount + "种商品，" + totalPrice + "元")
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.setPositiveButton("确定", (dialog, which) -> deleteGoods())
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.setNegativeButton("取消", (dialog, which) -> dialog.dismiss())
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.create();
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dialog.show();
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break;
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case R.id.tv_delete_goods://删除
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if (totalCount == 0) {
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showMsg("请选择要删除的商品");
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return;
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}
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//弹窗
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dialog = new AlertDialog.Builder(this)
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.setMessage("确定要删除所选商品吗?")
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.setPositiveButton("确定", (dialog, which) -> deleteGoods())
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.setNegativeButton("取消", (dialog, which) -> dialog.dismiss())
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.create();
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dialog.show();
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break;
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case R.id.tv_collect_goods://收藏
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if (totalCount == 0) {
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showMsg("请选择要收藏的商品");
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return;
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}
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showMsg("收藏成功!");
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break;
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case R.id.tv_share_goods://分享
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if (totalCount == 0) {
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showMsg("请选择要分享的商品");
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return;
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}
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showMsg("分享成功!");
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break;
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default:
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break;
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}
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}
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/**
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* 删除商品
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*/
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private void deleteGoods() {
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//店铺列表
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List<CarResponse.OrderDataBean> storeList = new ArrayList<>();
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for (int i = 0; i < mList.size(); i++) {
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CarResponse.OrderDataBean store = mList.get(i);
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if (store.isChecked()) {
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//店铺如果选择则添加到此列表中
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storeList.add(store);
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}
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//商品列表
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List<CarResponse.OrderDataBean.CartlistBean> goodsList = new ArrayList<>();
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List<CarResponse.OrderDataBean.CartlistBean> goods = store.getCartlist();
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//循环店铺中的商品列表
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for (int j = 0; j < goods.size(); j++) {
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CarResponse.OrderDataBean.CartlistBean cartlistBean = goods.get(j);
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//当有选中商品时添加到此列表中
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if (cartlistBean.isChecked()) {
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goodsList.add(cartlistBean);
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}
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}
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//删除商品
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goods.removeAll(goodsList);
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}
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//删除店铺
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mList.removeAll(storeList);
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shopIdList.clear();//删除了选中商品，清空已选择的标识
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controlAllChecked();//控制去全选
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//改变界面UI
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tvEdit.setText("编辑");
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layEdit.setVisibility(View.GONE);
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isEdit = false;
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//刷新数据
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storeAdapter.notifyDataSetChanged();
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if (mList.size() <= 0) {
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//无商品
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isHaveGoods = false;
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//启用下拉刷新
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refresh.setEnableRefresh(true);
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//显示空布局
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layEmpty.setVisibility(View.VISIBLE);
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}
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}
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/**
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* 是否全选
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*
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* @param state 状态
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*/
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private void isSelectAllStore(boolean state) {
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//修改背景
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ivCheckedAll.setImageDrawable(getDrawable(state ? R.drawable.ic_checked : R.drawable.ic_check));
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for (CarResponse.OrderDataBean orderDataBean : mList) {
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//商品是否选中
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storeAdapter.controlGoods(orderDataBean.getShopId(), state);
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//店铺是否选中
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checkedStore(orderDataBean.getShopId(), state);
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}
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isAllChecked = state;
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}
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/**
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* Toast提示
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*
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* @param msg
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*/
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private void showMsg(String msg) {
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Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
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}
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}
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