app/lib/paegs/mine_page/coupon_page/coupon_page.dart

import 'package:bbyyy/my_tools/event_bus.dart';
import 'package:bbyyy/my_tools/my_colors.dart';
import 'package:bbyyy/my_tools/my_views.dart';
import 'package:bbyyy/paegs/mine_page/coupon_page/coupon_view.dart';
import 'package:flutter/material.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';

import '../../../https/MyDio.dart';
import '../../../my_tools/dims.dart';
import '../../../my_tools/my_cookie.dart';
import '../../../my_tools/my_tools.dart';

class CouponPage extends StatefulWidget {
  @override
  _CouponPageState createState() => _CouponPageState();
}

class _CouponPageState extends State<CouponPage> {
  // int selectedIndex = 0;
  int page = 1;
  RefreshController controller = RefreshController(initialRefresh: true);

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    EventBus().on('showCouponIndex', (arg) {
      setState(() {

      });
    });
  }
  @override
  void dispose() {
    // TODO: implement dispose
    super.dispose();
    CouponView().showIndexs.clear();
    EventBus().off('showCouponIndex');
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: MyColors.cF7F7F7,
      body: Column(
        children: [
          MyViews().myAppBar('优惠券', context, []),
          // Container(
          //   height: 40,
          //   color: Colors.white,
          //   child: Row(
          //     children: [
          //       GestureDetector(
          //         onTap: () {
          //           setState(() {
          //             selectedIndex = 0;
          //           });
          //         },
          //         behavior: HitTestBehavior.translucent,
          //         child: Padding(
          //           padding: EdgeInsets.only(left: 10, right: 10),
          //           child: Column(
          //             children: [
          //               Text(
          //                 '有效',
          //                 style: TextStyle(
          //                     color: selectedIndex == 0
          //                         ? MyColors.cFF4233
          //                         : MyColors.c666666,
          //                     fontSize: 15),
          //               ),
          //               Container(
          //                 height: 10,
          //                 child: Visibility(
          //                   child: SvgPicture.asset('images/svg/tab.svg'),
          //                   visible: selectedIndex == 0,
          //                 ),
          //               )
          //             ],
          //             mainAxisAlignment: MainAxisAlignment.end,
          //           ),
          //         ),
          //       ),
          //       GestureDetector(
          //         onTap: () {
          //           setState(() {
          //             selectedIndex = 1;
          //           });
          //         },
          //         behavior: HitTestBehavior.translucent,
          //         child: Padding(
          //           padding: EdgeInsets.only(left: 10, right: 10),
          //           child: Column(
          //             children: [
          //               Text(
          //                 '已用',
          //                 style: TextStyle(
          //                     color: selectedIndex == 1
          //                         ? MyColors.cFF4233
          //                         : MyColors.c666666,
          //                     fontSize: 15),
          //               ),
          //               Container(
          //                 height: 10,
          //                 child: Visibility(
          //                   child: SvgPicture.asset('images/svg/tab.svg'),
          //                   visible: selectedIndex == 1,
          //                 ),
          //               )
          //             ],
          //             mainAxisAlignment: MainAxisAlignment.end,
          //           ),
          //         ),
          //       )
          //     ],
          //     mainAxisAlignment: MainAxisAlignment.spaceAround,
          //   ),
          // ),
          Expanded(
            child: SmartRefresher(
              controller: controller,
              onRefresh: onRefresh,
              onLoading: onLoading,
              enablePullUp: true,
              enablePullDown: true,
              child: ListView.builder(
                itemBuilder: (c, index) {
                  return CouponView().ticketItem(index);
                },
                itemCount: 20,
                padding:
                    EdgeInsets.only(top: 5, left: 24, right: 24, bottom: 20),
              ),
            ),
          ),
        ],
      ),
    );
  }

  void onRefresh() {
    page = 1;
    checkCoupons();
  }

  void onLoading() {
    page++;
    checkCoupons();
  }



  checkCoupons() {
    MyDio().query({
      "key": "coupon",
      "filters": [
        {
          "conditions": ["user_uid==${MyCookie().getUID()}"]
        }
      ],
      "dims": couponDims,
      "paging": [page, 20]
    }, (response, hasError) {
      endRe(controller);
    }, (error) {
      endRe(controller);
    });
  }
}