E2EEChat/lib/view/home.dart

import 'package:e2ee_chat/common/global.dart';
import 'package:e2ee_chat/l10n/localization_intl.dart';
import 'package:e2ee_chat/common/api.dart';
import 'package:e2ee_chat/presenter/theme_model.dart';
import 'package:e2ee_chat/widgets/empty.dart';
import 'package:e2ee_chat/widgets/mydrawer.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import 'friends.dart';
import 'group.dart';
import 'message.dart';

class HomeRoute extends StatefulWidget {
  @override
  _HomeRouteState createState() => _HomeRouteState();
}

class _HomeRouteState extends State<HomeRoute> {
  int _index = 0;

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

  @override
  Widget build(BuildContext context) {
    var gm = GmLocalizations.of(context);
    return Scaffold(
      appBar: AppBar(
        title: Text(gm.home),
        actions: <Widget>[
          IconButton(onPressed: () {
            // TODO: 弹出下拉菜单
          }, icon: Icon(Icons.add))
        ],
      ),
      drawer: MyDrawer(),
      bottomNavigationBar: BottomNavigationBar(
        items: [
          BottomNavigationBarItem(icon: Icon(Icons.chat_bubble), label: "message"),
          BottomNavigationBarItem(icon: Icon(Icons.people), label: "friends"),
          BottomNavigationBarItem(icon: Icon(Icons.person), label: "group"),
        ],
        currentIndex: _index,
        fixedColor: Provider.of<ThemeModel>(context).theme,
        onTap: _onItemTapped,
      ),
      body: RefreshIndicator(
        child: _buildChild(),
        onRefresh: () async {
          // TODO: pull to refresh
        },
      ), // 构建主页面
    );
  }

  void _onItemTapped(int value) {
    setState(() {
      _index = value;
    });
  }

  Widget _buildChild() {
    switch (_index) {
      case 0:
        return MessageList();
      case 1:
        return FriendRoute();
      case 2:
        return GroupRoute();
    }
    return EmptyWidget();

  }

  Widget _buildGroupList() {
    // TODO: group list
    return EmptyWidget();
  }
}