coupon_page.dart 16 KB
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_easyrefresh/easy_refresh.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:one_key/constant/state.dart';
import 'package:one_key/pages/coupon/coupon_sun_page.dart';
import 'package:one_key/provider/coupon_provider.dart';
import 'package:one_key/provider/personnel_provider.dart';
import 'package:one_key/provider/user_model.dart';
import 'package:one_key/res/colors.dart';
import 'package:one_key/utils/event_bus.dart';
import 'package:one_key/route/navigator_util.dart';
import 'package:one_key/widgets/round_button.dart';
import 'package:one_key/widgets/system_app_bar.dart';
import 'package:one_key/widgets/v_empty_view.dart';
import 'package:provider/provider.dart';
import 'package:barcode_scan2/barcode_scan2.dart';

import '../../utils/dialog_util.dart';
import '../../utils/misc.dart';
import '../../utils/utils.dart';
import 'coupon_has_verification_page.dart';

/**
 * 优惠券列表
 */

class CouponPage extends StatefulWidget {
  final bool needRefrsh;
  CouponPage({Key key, this.needRefrsh = false}) : super(key: key);

  @override
  _CouponPageState createState() => _CouponPageState();
}

class _CouponPageState extends State<CouponPage> with TickerProviderStateMixin {
  EasyRefreshController _controller = EasyRefreshController();
  CouponProvider couponProvider;
  TabController tabController;

  // ///获取优惠券列表数据
  // _couponNetworkData(int index, {bool isShowLoading = true}) async {
  //   Map<String, String> params = {
  //     "uid": Provider.of<UserModel>(context, listen: false).user.openid,
  //     // 'is_time': '0'
  //     "is_type": index.toString()
  //   };
  //   await couponProvider.getCustomerActivity(context, params,
  //       isShowLoading: isShowLoading);
  // }

  ///修改活动信息
  // _setCustomerActivity(int index) async {
  //   Map<String, String> params = {
  //     "id": couponProvider.couponList[index].id,
  //     "status": couponProvider.couponList[index].isOpenBool ? '1' : '0'
  //   };
  //   bool isSuccess = await couponProvider.setCustomerActivity(context, params,
  //       isShowLoading: false);
  //   print(isSuccess);
  //   _couponNetworkData(tabController.index, isShowLoading: false);
  //   // if (isSuccess) {
  //   //   couponProvider.notifyListeners();
  //   // } else {
  //   //   couponProvider.couponList[index].isOpenBool =
  //   //       !couponProvider.couponList[index].isOpenBool;
  //   //   couponProvider.notifyListeners();
  //   // }
  // }'
  ScanResult scanResult;

  var _aspectTolerance = 0.5;
  // var _numberOfCameras = 0;
  var _selectedCamera = -1;
  var _autoEnableFlash = false;

  static final _possibleFormats = BarcodeFormat.values.toList()
    ..removeWhere((e) => e == BarcodeFormat.unknown);

  List<BarcodeFormat> selectedFormats = [..._possibleFormats];

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    // Future.delayed(Duration.zero, () async {
    //   // _numberOfCameras = await BarcodeScanner.numberOfCameras;
    //   setState(() {});
    // });
    tabController = TabController(length: 4, vsync: this);
    tabController.addListener(() {
      // couponProvider.couponList = [];
      // couponProvider.pageState = PageState.Loading;
      // setState(() {});
      //点击tab时或滑动tab回调一次
      if (tabController.index.toDouble() == tabController.animation.value) {
        // couponProvider.notifyListeners();
        // _couponNetworkData(tabController.index);
        // selectIndex = tabController.index;
        // setState(() {});
      }
    });
    WidgetsBinding.instance.addPostFrameCallback((_) {
      // _couponNetworkData(0);
    });
    // bus.on("refresh_coupon_list_f", (arg) {
    //   _couponNetworkData(tabController.index);
    // });
  }

  @override
  void dispose() {
    bus.off("refresh_coupon_list_f");
    super.dispose();
  }

  Future<void> _scan() async {
    try {
      final result = await BarcodeScanner.scan(
        options: ScanOptions(
          strings: {'cancel': '退出', 'flash_on': '开闪光灯', 'flash_off': '关闪光灯'},
          restrictFormat: selectedFormats,
          useCamera: _selectedCamera,
          autoEnableFlash: _autoEnableFlash, //true打开闪光灯, false关闭闪光灯
          android: AndroidOptions(
              aspectTolerance: 0.5, useAutoFocus: true), //(默认已配)添加Android自动对焦
        ),
      );
      // result.rawContent
      setState(() => scanResult = result);
      print(result);

      if (result.rawContent is String) {
        if (Utils.cnIsNumber(result.rawContent)) {
          NavigatorUtil.goVerificationCouponPage(context, result.rawContent);
        }
      }
    } on PlatformException catch (e) {
      setState(() {
        scanResult = ScanResult(
          type: ResultType.Error,
          rawContent: e.code == BarcodeScanner.cameraAccessDenied
              ? 'The user did not grant the camera permission!'
              : 'Unknown error: $e',
        );
        if (e.code == BarcodeScanner.cameraAccessDenied) {
          DialogUtil.openAlertDialog(
              context, '未获得相机权限', "请在手机的权限管理里,将相机权限开启", '去设置', 340.0,
              onTap: () {
            openSetting();
            Navigator.pop(context, '');
          });
        }
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    couponProvider = Provider.of<CouponProvider>(context, listen: true);
    return Scaffold(
        backgroundColor: MyColours.color_f3f3f3,
        appBar: SystemAppBar(
          '线上券',
          onTap: () {
            if (widget.needRefrsh) {
              EventBus().emit('refresh_coupon_invitation');
            } else {
              EventBus().emit('changeStatusColor');
            }

            Navigator.of(context).pop();
          },
          rightImgName: 'scan.png',
          onTapRight: () {
            _scan();
          },
        ),
        body: WillPopScope(
          onWillPop: () {
            if (widget.needRefrsh) {
              EventBus().emit('refresh_coupon_invitation');
            } else {
              EventBus().emit('changeStatusColor');
            }
            Navigator.of(context).pop();
          },
          child: Column(
            children: <Widget>[
              Container(
                  width: double.infinity,
                  height: ScreenUtil().setWidth(80),
                  color: MyColours.color_ffffff,
                  padding: EdgeInsets.only(bottom: ScreenUtil().setWidth(6)),
                  child: TabBar(
                    controller: tabController,
                    tabs: [
                      Tab(
                        text: "全部",
                      ),
                      Tab(
                        text: "店铺优惠券",
                      ),
                      Tab(
                        text: "我的优惠券",
                      ),
                      Tab(
                        text: "核销记录",
                      )
                    ],
                    indicatorColor: MyColours.color_438E93,
                    indicatorSize: TabBarIndicatorSize.label,
                    indicatorWeight: ScreenUtil().setWidth(4),
                    labelColor: MyColours.color_438E93,
                    unselectedLabelColor: MyColours.color_999999,
                    labelStyle: TextStyle(
                        color: MyColours.color_438E93,
                        fontSize: ScreenUtil().setSp(28),
                        fontWeight: FontWeight.bold),
                    unselectedLabelStyle: TextStyle(
                      color: MyColours.color_999999,
                      fontSize: ScreenUtil().setSp(24),
                    ),
                  )),
              VEmptyView(32),
              Expanded(
                child: TabBarView(
                  controller: tabController,
                  children: [
                    ChangeNotifierProvider<PersonnelProvider>(
                        create: (_) => PersonnelProvider(),
                        child: CouponSunPage(index: 0)),
                    ChangeNotifierProvider<PersonnelProvider>(
                        create: (_) => PersonnelProvider(),
                        child: CouponSunPage(index: 1)),
                    ChangeNotifierProvider<PersonnelProvider>(
                        create: (_) => PersonnelProvider(),
                        child: CouponSunPage(index: 2)),
                    ChangeNotifierProvider<PersonnelProvider>(
                        create: (_) => PersonnelProvider(),
                        child: CouponHasVerificationPage()),
                  ],
                ),
              ),
              if (tabController.index != 3)
                Container(
                  height: ScreenUtil().setWidth(91 * 2),
                  width: double.infinity,
                  padding: EdgeInsets.only(
                    top: ScreenUtil().setWidth(16 * 2),
                    bottom: ScreenUtil().setWidth(35 * 2),
                    left: ScreenUtil().setWidth(45 * 2),
                    right: ScreenUtil().setWidth(45 * 2),
                  ),
                  decoration: BoxDecoration(
                    color: MyColours.color_ffffff,
                    boxShadow: [
                      BoxShadow(
                          spreadRadius: ScreenUtil().setWidth(2),
                          color: Color.fromRGBO(0, 0, 0, 0.1),
                          offset: Offset(0, ScreenUtil().setWidth(-2)),
                          blurRadius: ScreenUtil().setWidth(8))
                    ],
                    borderRadius: BorderRadius.all(
                      Radius.circular(ScreenUtil().setWidth(16)),
                    ),
                  ),
                  child: RoundButton(
                    text: '创建新的优惠券',
                    height: ScreenUtil().setWidth(80),
                    radius: ScreenUtil().setWidth(14),
                    isBold: false,
                    fontSize: 28,
                    onPressed: () async {
                      UserModel userModel =
                          Provider.of<UserModel>(context, listen: false);
                      if (userModel.user.role_name == '管理员' ||
                          userModel.user.role_name == '店长') {
                        NavigatorUtil.goCouponCreateSelectTypePage(context);
                      } else {
                        bool needRefresh =
                            await NavigatorUtil.goCouponEditPage(context);
                        print(needRefresh);
                        if (needRefresh != null && needRefresh) {
                          bus.emit('refresh_coupon_list_f');
                          //刷新页面数据
                          // _controller.callRefresh();
                          // _couponNetworkData(tabController.index);
                        }
                      }
                    },
                  ),
                )
            ],
          ),
          // child: Column(
          //   children: [
          //     Expanded(child: Consumer<CouponProvider>(
          //       builder: (context, model, _) {
          //         if (model.pageState != PageState.Success) {
          //           return ExceptionPage(
          //             pageState: model.pageState,
          //             callback: () {
          //               // offset = 0;
          //               // getMessage(showLoading: true);
          //               _couponNetworkData();
          //             },
          //             emptyMsg: "暂时没有列表信息哦",
          //             emptyImg: "empty_search",
          //             showMsg: "加载中,请稍后...",
          //           );
          //         } else {
          //           return EasyRefresh.custom(
          //             controller: _controller,
          //             shrinkWrap: true,
          //             slivers: [
          //               SliverList(
          //                 delegate: SliverChildBuilderDelegate(
          //                     (BuildContext context, int index) {
          //                   return Container(
          //                       margin:
          //                           EdgeInsets.all(ScreenUtil().setWidth(40)),
          //                       padding:
          //                           EdgeInsets.all(ScreenUtil().setWidth(30)),
          //                       color: MyColours.color_F0F0F0,
          //                       child: Text(
          //                         '使用说明:需在结账前出示优惠券二维码,店内工作人员微信扫码核销。超过有效期的券,会自动作废并移出列表。优惠券不可找零、兑现。',
          //                         style: TextStyle(
          //                           color: MyColours.color_666666,
          //                           fontSize: ScreenUtil().setSp(24),
          //                         ),
          //                         strutStyle: StrutStyle(
          //                             forceStrutHeight: true,
          //                             height: 1,
          //                             leading: 0.3),
          //                       ));
          //                 }, childCount: 1),
          //               ),
          //               SliverList(
          //                 delegate: SliverChildBuilderDelegate(
          //                     (BuildContext context, int index) {
          //                   return CouponItem(
          //                     from: 'quan',
          //                     couponSonModel:
          //                         couponProvider.couponList[index],
          //                     showBtn: true,
          //                     onPressedSwich: () {
          //                       couponProvider.couponList[index].isOpenBool =
          //                           !couponProvider
          //                               .couponList[index].isOpenBool;
          //                       _setCustomerActivity(index);
          //                     },
          //                     onPressed: () {
          //                       NavigatorUtil.goCouponDetailPage(context,
          //                           couponProvider.couponList[index]);
          //                     },
          //                   );
          //                 }, childCount: couponProvider.couponList.length),
          //               )
          //             ],
          //             // onRefresh: () async {
          //             //   // offset = 0;
          //             //   // getMessage(showLoading: false);
          //             // },
          //             // onLoad: () async {
          //             //   // offset++;
          //             //   // getMessage(showLoading: false);
          //             // },
          //           );
          //         }
          //       },
          //     )),
          //     VEmptyView(20),
          //     Padding(
          //         padding: EdgeInsets.fromLTRB(ScreenUtil().setWidth(40), 0,
          //             ScreenUtil().setWidth(40), ScreenUtil().setWidth(40)),
          //         child: RoundButton(
          //           onPressed: () async {
          //             bool needRefresh =
          //                 await NavigatorUtil.goCouponEditPage(context);
          //             print(needRefresh);
          //             if (needRefresh != null && needRefresh) {
          //               //刷新页面数据
          //               // _controller.callRefresh();
          //               _couponNetworkData();
          //             }
          //           },
          //           text: '创建新券',
          //           fontSize: 34,
          //           isBold: false,
          //           height: ScreenUtil().setWidth(80),
          //           width: double.infinity,
          //           radius: ScreenUtil().setWidth(10),
          //         ))
          //   ],
          // )
        ));
  }
}