yokutango-mobile-reader/lib/screens/home.dart

import 'package:flutter/material.dart';
import 'package:tangocard_reader/service/tangocard_files.dart';

import 'pages/tango_set_list.dart';

class Home extends StatefulWidget {
  const Home({Key? key}) : super(key: key);

  @override
  State<Home> createState() => _HomeState();
}

class _HomeState extends State<Home> {
  int page = 0;

  final _pages = [
    TangoSetList(files: tangocardFilePaths, route: '/list/tango',),
    TangoSetList(files: kanjicardFilePaths, route: '/list/kanji',),
  ];

  @override
  Widget build(BuildContext context) => Scaffold(
        appBar: AppBar(
          title: const Text("よく単語"),
          centerTitle: true,
        ),
        body: _pages[page],
        bottomNavigationBar: BottomNavigationBar(
          onTap: (int index) => setState(() => page = index),
          currentIndex: page,
          items: const [
            BottomNavigationBarItem(label: 'Tango', icon: Icon(Icons.style)),
            BottomNavigationBarItem(label: 'Kanji', icon: Text('漢字')),
          ],
        ),
      );
}