app/lib/paegs/mine_page/my_goods_page/my_goods_page.dart

import 'dart:convert';

import 'package:bbyyy/beans/goods_bean_entity.dart';
import 'package:bbyyy/https/MyDio.dart';
import 'package:bbyyy/my_tools/dims.dart';
import 'package:bbyyy/my_tools/event_bus.dart';
import 'package:bbyyy/my_tools/my_colors.dart';
import 'package:bbyyy/my_tools/my_cookie.dart';
import 'package:bbyyy/my_tools/my_tools.dart';
import 'package:bbyyy/my_tools/my_views.dart';
import 'package:bbyyy/paegs/release_goods_page/release_goods_page.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_slidable/flutter_slidable.dart';
import 'package:flutter_svg/svg.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';

class MyGoodsPage extends StatefulWidget {
  @override
  _MyGoodsPageState createState() => _MyGoodsPageState();
}

class _MyGoodsPageState extends State<MyGoodsPage> {
  List<GoodsBeanDataData> data = [];
  RefreshController controller = RefreshController(initialRefresh: true);
  int page = 1;

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    EventBus().on('updateProduct', (arg) {controller.requestRefresh();});
  }
  @override
  void dispose() {
    // TODO: implement dispose
    super.dispose();
    EventBus().off('updateProduct');
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: MyColors.cF7F7F7,
      body: Column(
        children: [
          MyViews().myAppBar('我的商品', context, [
            GestureDetector(
              onTap: () {
                MyTools().toPage(context, ReleaseGoodsPage(null,''), (then) {
                  controller.requestRefresh();
                });
              },
              behavior: HitTestBehavior.translucent,
              child: Container(
                padding: EdgeInsets.symmetric(vertical: 8, horizontal: 16),
                child: Text(
                  '发布',
                  style: TextStyle(color: MyColors.c333333, fontSize: 16),
                ),
              ),
            ),
          ]),
          Expanded(
            child: SmartRefresher(
              controller: controller,
              onRefresh: onRefresh,
              onLoading: onLoading,
              enablePullDown: true,
              enablePullUp: true,
              child: data.length == 0
                  ? SingleChildScrollView(child: noData())
                  : ListView.builder(
                      itemBuilder: (c, index) {
                        return Slidable(
                          actionPane: SlidableDrawerActionPane(),
                          actionExtentRatio: 0.25,
                          child: MyViews().getMyGoodsItem(data[index], context),
                          secondaryActions: <Widget>[
                            SlideAction(
                              child: Container(
                                child: Container(
                                  decoration: BoxDecoration(
                                    borderRadius: BorderRadius.circular(30),
                                    color: MyColors.cFF4233,
                                  ),
                                  height: 60,width: 60,
                                  child: SvgPicture.asset('images/svg/del.svg',height: 40,width: 40,),
                                  alignment: Alignment.center,
                                ),
                              ),
                              onTap: (){
                                showSimpleDialog(
                                    '确认删除(${data[index].title})', context,
                                        () async {
                                      Navigator.pop(context);
                                      delGoods(data[index]);
                                    });
                              },
                            )
                          ],
                        );
                      },
                      itemCount: data.length,
                      padding: EdgeInsets.only(top: 10),
                    ),
            ),
          ),
        ],
      ),
    );
  }

  void getMyGoods() {
    MyDio().query({
      "key": "commodity",
      "filters": {
        "conditions": ["user_uid == ${MyCookie().getUID()}"]
      },
      "dims": commodityDims,
      "paging": [page, 20]
    }, (response, hasError) {
      if (!hasError) {
        GoodsBeanEntity entity =
            GoodsBeanEntity.fromJson(json.decode(response.data.toString()));
        if (page == 1) {
          data.clear();
        }
        data.addAll(entity.data.data);
        setState(() {});
      }
      endRe(controller);
    }, (error) {});
  }

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

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

  delGoods(GoodsBeanDataData goods) {
    MyDio().del({
      'key': 'commodity',
      'ids': [goods.id]
    }, (response, hasError) {
      if (!hasError) {
        showToast('删除成功');
        data.remove(goods);
        setState(() {});
      }
    }, (error) {});
  }
}