huixiang_app/lib/mine/coupon_page.dart

import 'dart:convert';

import 'package:dio/dio.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_html/flutter_html.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:huixiang/retrofit/data/base_data.dart';
import 'package:huixiang/retrofit/data/coupon.dart';
import 'package:huixiang/retrofit/data/page.dart';
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/utils/font_weight.dart';
import 'package:huixiang/view_widget/classic_header.dart';
import 'package:huixiang/view_widget/my_appbar.dart';
import 'package:huixiang/view_widget/my_footer.dart';
import 'package:huixiang/view_widget/new_coupon_widget.dart';
import 'package:huixiang/view_widget/no_data_view.dart';
import 'package:huixiang/view_widget/receive_success.dart';
import 'package:huixiang/view_widget/selector_store_dialog.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';

class CouponPage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _CouponPage();
  }
}

class _CouponPage extends State<CouponPage> {
  ApiService apiService;
  RefreshController _refreshController;

  @override
  void dispose() {
    super.dispose();
    _refreshController.dispose();
  }

  @override
  void initState() {
    super.initState();

    SharedPreferences.getInstance().then((value) {
      apiService =
          ApiService(Dio(), context: context, token: value.getString('token'));
      queryCard();
    });
    _refreshController = RefreshController(initialRefresh: false);
  }

  List<Coupon> coupons = [];
  int pageNum = 1;
  int state = 1;

  _onRefresh() async {
    pageNum = 1;
    queryCard();
  }

  queryCard() async {
    BaseData<PageInfo<Coupon>> baseData = await apiService.queryCard({
      "centre": true,
      "pageNum": pageNum,
      "pageSize": 10,
      "searchKey": "",
      "state": state
    }).catchError((error) {
      _refreshController.loadFailed();
      _refreshController.refreshFailed();
    });
    if (baseData != null && baseData.isSuccess) {
      if (pageNum == 1) {
        coupons.clear();
      }
      coupons.addAll(baseData.data.list);
      setState(() {
        _refreshController.refreshCompleted();
        _refreshController.loadComplete();
        if (baseData.data.pageNum == baseData.data.pages) {
          _refreshController.loadNoData();
        } else {
          pageNum += 1;
        }
      });
    } else {
      _refreshController.loadFailed();
      _refreshController.refreshFailed();
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: MyAppBar(
        title: S.of(context).youhuiquan,
        titleColor: Colors.black,
        background: Color(0xFFFFFFFF),
        leadingColor: Colors.black,
      ),
      body: Column(
        children: [
          Container(
            height: 54.h,
            padding: EdgeInsets.only(left: 14.w, right: 14.w, bottom: 12.h),
            margin: EdgeInsets.only(bottom: 10),
            color: Color(0xFFFFFFFF),
            child: Row(
              children: [
                Expanded(
                    child: GestureDetector(
                  onTap: () {
                    setState(() {
                      state = 1;
                      _onRefresh();
                    });
                  },
                  child: Container(
                    width: double.infinity,
                    alignment: Alignment.center,
                    decoration: BoxDecoration(
                      borderRadius: new BorderRadius.only(
                        topLeft: Radius.circular(6),
                        bottomLeft: Radius.circular(6),
                      ),
                      border: Border.all(
                        color: Color(0xFF32A060),
                        width: 1,
                      ),
                      color: state == 1 ? Color(0xFF32A060) : Color(0xFFFFFFFF),
                    ),
                    child: Text(
                      S.of(context).keyongquan,
                      style: TextStyle(
                        fontWeight: MyFontWeight.medium,
                        fontSize: 15.sp,
                        color: state == 1 ? Color(0xFFFFFFFF) : Color(0xFF32A060),
                      ),
                    ),
                  ),
                )),
                Expanded(
                    child: GestureDetector(
                  onTap: () {
                    setState(() {
                      state = 3;
                      _onRefresh();
                    });
                  },
                  child: Container(
                    width: double.infinity,
                    alignment: Alignment.center,
                    decoration: BoxDecoration(
                      borderRadius: new BorderRadius.only(
                        topRight: Radius.circular(6),
                        bottomRight: Radius.circular(6),
                      ),
                      border: Border.all(
                        color: Color(0xFF32A060),
                        width: 1,
                      ),
                      color: state == 3 ? Color(0xFF32A060) : Color(0xFFFFFFFF),
                    ),
                    child: Text(
                      S.of(context).shixiaoquan,
                      style: TextStyle(
                        fontWeight: MyFontWeight.medium,
                        fontSize: 15.sp,
                        color: state == 3 ? Color(0xFFFFFFFF) : Color(0xFF32A060),
                      ),
                    ),
                  ),
                ))
              ],
            ),
          ),
          Expanded(
            child: SmartRefresher(
              controller: _refreshController,
              enablePullDown: true,
              enablePullUp: true,
              physics: BouncingScrollPhysics(),
              header: MyHeader(),
              footer: CustomFooter(
                builder: (context, mode) {
                  return MyFooter(mode);
                },
              ),
              onRefresh: _onRefresh,
              onLoading: queryCard,
              child: (coupons != null && coupons.length > 0)
                  ? ListView.builder(
                      itemBuilder: (context, position) {
                        return GestureDetector(
                          child: NewCouponWidget(
                            coupons[position],
                            (type) {
                              if (type == 1) {
                                receiveCoupon(coupons[position].id);
                              } else {
                                if (coupons[position].bizType == 5 ||
                                    coupons[position].bizType == 3) {
                                  Navigator.of(context).pushNamed(
                                      '/router/write_off_page',
                                      arguments: {
                                        "couponId": coupons[position].id,
                                        "coupon": jsonEncode(coupons[position]),
                                      }).then((value) {
                                    _onRefresh();
                                  });
                                } else {
                                  showStoreSelector(
                                      coupons[position].storeList);
                                }
                              }
                            },
                            // (){
                            //   setState(() {
                            //     couponDialog();
                            //   });
                            // },
                            () {
                              setState(() {
                                coupons[position].isEx =
                                    !coupons[position].isEx;
                              });
                            },
                            type: 0,
                          ),
                        );
                      },
                      itemCount: coupons != null ? coupons.length : 0,
                    )
                  : NoDataView(
                      src: "assets/image/ka.webp",
                      isShowBtn: false,
                      text: "目前暂无优惠券，请到领劵中心领取哦～",
                      fontSize: 16.sp,
                      margin: EdgeInsets.only(top: 120.h, left: 60, right: 60),
                    ),
            ),
          ),
        ],
      ),
    );
  }

  receiveCoupon(couponId) async {
    BaseData baseData =
        await apiService.receiveCoupon(couponId).catchError((onError) {});
    if (baseData != null && baseData.isSuccess) {
      _onRefresh();
      showAlertDialog();
    }
  }

  ///选择店铺使用
  showStoreSelector(storeList) {
    showModalBottomSheet(
        context: context,
        backgroundColor: Colors.transparent,
        builder: (context) {
          return SelectorStoreWidget(storeList);
        });
  }

  couponDialog(){
    showCouponDialog();
  }

  showAlertDialog() {
    //显示对话框
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return ReceiveSuccess();
      },
    );
  }

  ///优惠券详情弹窗
  showCouponDialog() {
    showDialog(
      context: context,
      builder: (context) {
        return AlertDialog(
          content: Container(
            width: MediaQuery.of(context).size.width - 14,
            height: 330.h,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.start,
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Row(
                  mainAxisAlignment: MainAxisAlignment.start,
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: [
                    Expanded(child:
                    Container(
                      alignment: Alignment.center,
                      child: Text(
                        "使用详情",
                        style: TextStyle(
                          fontWeight: MyFontWeight.bold,
                          fontSize: 15.sp,
                          color: Color(0xFF353535),
                        ),
                      ),
                    )),
                    GestureDetector(
                      onTap: (){
                        setState(() {
                          Navigator.of(context).pop();
                        });
                      },
                      child: Icon(
                        Icons.clear,
                        color: Colors.black,
                        size: 18,
                      ),
                    ),
                    SizedBox(width: 14),
                  ],
                ),
                SizedBox(height: 12.h,),
                Container(
                  width: double.infinity,
                  height: 1.h,
                  color: Color(0xFFF2F2F2),
                  margin: EdgeInsets.only(bottom:11.h),
                ),
                Container(
                  color: Colors.white,
                  child: Html(
                    data: "注意",
                    customImageRenders: {
                      networkSourceMatcher(): networkImageRender(
                        loadingWidget: () {
                          return Container();
                        },
                      ),
                    },
                  ),
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}