fcs/lib/pages/buyer_list.dart

import 'package:provider/provider.dart';
import 'package:fcs/model/buyer_model.dart';
import 'package:fcs/pages/search_page.dart';
import 'package:fcs/vo/buyer.dart';
import 'package:fcs/vo/popup_menu.dart';
import 'package:fcs/widget/localization/app_translations.dart';
import 'package:fcs/widget/popupmenu.dart';

import 'package:flutter/material.dart';
import 'package:fcs/widget/progress.dart';

import '../fcs/common/theme.dart';
import 'buyer_list_row.dart';

class BuyerList extends StatefulWidget {
  @override
  _BuyerListState createState() => _BuyerListState();
}

class _BuyerListState extends State<BuyerList> {
  Buyer buyer;
  int _selectedIndex = 0;
  bool _isLoading = false;
  int _selectedSortIndex;

  @override
  void initState() {
    super.initState();
    var buyerModel = Provider.of<BuyerModel>(context, listen: false);
    var index = buyerModel.popupMenu.index;
    _selectedIndex = index;
    var sortIndexndex = buyerModel.sortMenu.index;
    _selectedSortIndex = sortIndexndex;
  }

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

  @override
  Widget build(BuildContext context) {
    BuyerModel buyerModel = Provider.of<BuyerModel>(context);

    return LocalProgress(
      inAsyncCall: _isLoading,
      child: Scaffold(
        appBar: AppBar(
          backgroundColor: primaryColor,
          title: Text(AppTranslations.of(context).text("buyer.title")),
          actions: <Widget>[
            IconButton(
              icon: Icon(
                Icons.search,
                color: Colors.white,
              ),
              iconSize: 30,
              onPressed: () => showPlacesSearch(context),
            ),
            PopupMenuButton<PopupMenu>(
                elevation: 3.2,
                onSelected: (selected) {
                  setState(() {
                    this._selectedSortIndex = selected.index;
                    this._selectedIndex = 0;
                    buyerModel.filterSorting(
                        _selectedSortIndex, this._selectedIndex);
                  });
                },
                icon: Container(
                    width: 30,
                    height: 30,
                    decoration: new BoxDecoration(
                      shape: BoxShape.circle,
                      color: Colors.white,
                    ),
                    child: Stack(
                      fit: StackFit.expand,
                      children: <Widget>[
                        Icon(
                          Icons.sort,
                          color: primaryColor,
                        ),
                        _selectedSortIndex != null
                            ? Positioned(
                                bottom: 0,
                                right: 0,
                                child: Container(
                                  width: 10,
                                  height: 10,
                                  decoration: new BoxDecoration(
                                    shape: BoxShape.circle,
                                    color: secondaryColor,
                                  ),
                                ),
                              )
                            : Container()
                      ],
                    )),
                itemBuilder: (BuildContext context) {
                  return userMenu.map((PopupMenu choice) {
                    return PopupMenuItem<PopupMenu>(
                      value: choice,
                      child: Container(
                        padding: EdgeInsets.only(left: 8),
                        child: Row(
                          children: <Widget>[
                            Text(choice.status),
                            SizedBox(
                              width: 10,
                            ),
                            _selectedSortIndex != null &&
                                    _selectedSortIndex == choice.index
                                ? Icon(
                                    Icons.check,
                                    color: Colors.grey,
                                  )
                                : Container(),
                          ],
                        ),
                      ),
                    );
                  }).toList();
                }),
            PopupMenuButton<PopupMenu>(
                elevation: 3.2,
                onSelected: (selected) {
                  String status;
                  setState(() {
                    this._selectedIndex = selected.index;
                    this._selectedSortIndex = null;
                    if (selected.status == 'All') {
                      status = null;
                    } else {
                      status = selected.status;
                    }
                    buyerModel.filterStatus(
                        status, _selectedIndex, this._selectedSortIndex);
                  });
                },
                icon: Container(
                    width: 30,
                    height: 30,
                    decoration: new BoxDecoration(
                      shape: BoxShape.circle,
                      color: Colors.white,
                    ),
                    child: Stack(
                      fit: StackFit.expand,
                      children: <Widget>[
                        Icon(
                          Icons.filter_list,
                          color: primaryColor,
                        ),
                        _selectedIndex != 0
                            ? Positioned(
                                bottom: 0,
                                right: 0,
                                child: Container(
                                  width: 10,
                                  height: 10,
                                  decoration: new BoxDecoration(
                                    shape: BoxShape.circle,
                                    color: secondaryColor,
                                  ),
                                ),
                              )
                            : Container()
                      ],
                    )),
                itemBuilder: (BuildContext context) {
                  return buyerStatusMenu.map((PopupMenu choice) {
                    return PopupMenuItem<PopupMenu>(
                      value: choice,
                      child: Row(
                        children: <Widget>[
                          Text(choice.status),
                          SizedBox(
                            width: 10,
                          ),
                          _selectedIndex != null &&
                                  _selectedIndex == choice.index
                              ? Icon(
                                  Icons.check,
                                  color: Colors.grey,
                                )
                              : Container(),
                        ],
                      ),
                    );
                  }).toList();
                }),
          ],
        ),
        body: new ListView.builder(
            scrollDirection: Axis.vertical,
            padding: EdgeInsets.only(top: 15),
            shrinkWrap: true,
            itemCount: buyerModel.buyers.length,
            itemBuilder: (BuildContext context, int index) {
              return BuyerListRow(
                buyer: buyerModel.buyers[index],
              );
            }),
      ),
    );
  }
}