huixiang_app/lib/mine/vip_balance_page.dart

import 'package:dio/dio.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.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:pull_to_refresh/pull_to_refresh.dart';
import 'package:shared_preferences/shared_preferences.dart';

class VipBalancePage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _VipBalancePage();
  }
}

class _VipBalancePage extends State<VipBalancePage> {
  RefreshController _refreshController;

  ApiService apiService;

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

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

    _refreshController = RefreshController(initialRefresh: false);
  }

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

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

  queryCard() async {
    BaseData baseData = await apiService.queryCard({
      "centre": true,
      "pageNum": pageNum,
      "pageSize": 10,
      "searchKey": "",
      "state": 3
    }).catchError((error) {
      _refreshController.loadFailed();
      _refreshController.refreshFailed();
    });
    if (baseData != null && baseData.isSuccess) {
      PageInfo pageInfo = PageInfo.fromJson(baseData.data);
      if (pageNum == 1) {
        coupons.clear();
      }
      coupons.addAll(pageInfo.list.map((e) => Coupon.fromJson(e)));
      setState(() {
        _refreshController.refreshCompleted();
        _refreshController.loadComplete();
        if (pageInfo.pageNum == pageInfo.pages) {
          _refreshController.loadNoData();
        } else {
          pageNum += 1;
        }
      });
    } else {
      _refreshController.loadFailed();
      _refreshController.refreshFailed();
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(
          S.of(context).yuemingxi,
          style: TextStyle(
            color: Colors.black,
            fontWeight: FontWeight.bold,
          ),
        ),
        centerTitle: false,
        backgroundColor: Color(0xFFF7F7F7),
        elevation: 0,
        leading: GestureDetector(
          onTap: () {
            Navigator.of(context).pop();
          },
          child: Container(
            alignment: Alignment.centerRight,
            margin: EdgeInsets.only(left: 10),
            padding: EdgeInsets.all(6),
            child: Icon(
              Icons.arrow_back_ios,
              color: Colors.black,
              size: 24,
            ),
          ),
        ),
        titleSpacing: 2,
        leadingWidth: 56,
      ),
      body: Container(
        child: ListView.builder(
          itemBuilder: (context, position) {
            return balanceItem();
          },
          itemCount: coupons.length,
        ),
      ),
    );
  }
  Widget balanceItem(){
    return Container(
      margin: EdgeInsets.only(left: 16,right: 16),
      child: Column(
        // mainAxisAlignment: MainAxisAlignment.spaceAround,
        // crossAxisAlignment: CrossAxisAlignment.start,
        children: [

          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Container(
                width: 19,
                height: 19,
                margin: EdgeInsets.only(left: 12, top: 12),
                alignment: Alignment.center,
                child: Image.asset(
                          "assets/image/icon_store_c.png",
                        ),
              ),
              Expanded(
                child: Container(
                  width: double.infinity,
                  margin: EdgeInsets.only(left: 6, top: 12),
                  alignment: Alignment.centerLeft,
                  child: Text(
                    "门店消费",
                    style: TextStyle(
                      fontWeight: FontWeight.bold,
                      fontSize: 16,
                      color: Color(0xFF353535),
                    ),
                  ),
                ),
                flex: 1,
              ),
              Padding(
                padding: EdgeInsets.only(top: 12),
                child: Text("-200",
                    style: TextStyle(
                        fontSize: 16,
                        color: Color(0xffF68034))),
              ),
            ],
          ),
          SizedBox(height: 8,),
          Container(
            margin: EdgeInsets.only(left: 35),
            child:Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text.rich(
                  TextSpan(children: [
                    TextSpan(
                      text: "2021-06-19 13:03",
                      style: TextStyle(fontSize: 14, color: Color(0xff727272)),
                    ),
                  ]),
                ),
                Text.rich(
                  TextSpan(children: [
                    TextSpan(
                      text: "余额:200.00",
                      style: TextStyle(fontSize: 14,fontWeight: FontWeight.bold, color: Color(0xff727272)),
                    ),
                  ]),
                ),
              ],
            ),),
          Container(
            margin: EdgeInsets.only(left: 35,top: 12,bottom: 12),
            height: 1,
            color: Color(0xFFF1F1F1),
          ),
        ],
      ),
    );
  }
}