fcs/lib/pages/announcement_list.dart

import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:provider/provider.dart';
import 'package:fcs/model/announcement_model.dart';
import 'package:fcs/model/main_model.dart';
import 'package:fcs/vo/announcement.dart' as Announce;
import 'package:fcs/widget/local_text.dart';
import 'package:fcs/widget/localization/app_translations.dart';
import 'package:fcs/widget/progress.dart';

import '../fcs/common/theme.dart';
import 'announcement.dart';
import 'announcement_editor.dart';

class AnnouncementList extends StatefulWidget {
  @override
  _AnnouncementListState createState() => _AnnouncementListState();
}

class _AnnouncementListState extends State<AnnouncementList> {
  var timeFormatter = new DateFormat('KK:mm a');
  var dateFormatter = new DateFormat('dd MMM');

  final double dotSize = 15.0;
  bool _isLoading = false;

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

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

    MainModel mainModel = Provider.of<MainModel>(context);
    bool isOwnerAndAbove =
        mainModel.user != null && mainModel.user.isOwnerAndAbove();
    bool hasAdmin = mainModel.user != null && mainModel.user.hasAdmin();

    return LocalProgress(
      inAsyncCall: _isLoading,
      child: Scaffold(
        appBar: AppBar(
            backgroundColor: primaryColor,
            title: LocalText(
              context,
              "announcement.title",
              color: Colors.white,
              fontSize: 20,
            )),
        floatingActionButton: isOwnerAndAbove || hasAdmin
            ? FloatingActionButton(
                backgroundColor: primaryColor,
                child: Icon(Icons.add),
                onPressed: () {
                  Navigator.push(
                    context,
                    MaterialPageRoute(
                        builder: (context) => AnnouncementEditor()),
                  );
                },
              )
            : Container(),
        body: new ListView.separated(
            separatorBuilder: (context, index) => Divider(
                  color: Colors.black,
                ),
            scrollDirection: Axis.vertical,
            padding: EdgeInsets.only(left: 15, right: 15, top: 15),
            shrinkWrap: true,
            itemCount: announcementModel.announcements.length,
            itemBuilder: (BuildContext context, int index) {
              Announce.Announcement announce =
                  announcementModel.announcements[index];
              return InkWell(
                onTap: () {
                  setState(() {
                    Navigator.push(
                      context,
                      MaterialPageRoute(
                          builder: (context) =>
                              AnnouncementPage(announcement: announce)),
                    );
                  });
                },
                child: Row(
                  children: <Widget>[
                    Expanded(
                      child: new Padding(
                        padding: const EdgeInsets.symmetric(vertical: 10.0),
                        child: new Row(
                          children: <Widget>[
                            new Padding(
                              padding: new EdgeInsets.symmetric(
                                  horizontal: 32.0 - dotSize / 2),
                              child: Icon(
                                Icons.announcement,
                                color: primaryColor,
                                size: 30,
                              ),
                            ),
                            new Expanded(
                              child: new Column(
                                crossAxisAlignment: CrossAxisAlignment.start,
                                children: <Widget>[
                                  announce.name == null
                                      ? Container()
                                      : new Text(
                                          announce.name,
                                          style: new TextStyle(
                                              fontSize: 15.0,
                                              color: Colors.black),
                                        ),
                                ],
                              ),
                            ),
                            Column(
                              mainAxisAlignment: MainAxisAlignment.center,
                              children: <Widget>[
                                Padding(
                                  padding: const EdgeInsets.all(8.0),
                                  child: Text(announce.time == null
                                      ? ""
                                      : timeFormatter.format(announce.time)),
                                ),
                                announce.fromToday()
                                    ? Container()
                                    : Text(announce.time == null
                                        ? ""
                                        : dateFormatter.format(announce.time)),
                              ],
                            )
                          ],
                        ),
                      ),
                    ),
                  ],
                ),
              );
            }),
      ),
    );
  }
}