import 'package:flutter/material.dart';
import 'package:item_tracker/screens/item_list_screen.dart';
import 'package:item_tracker/screens/statistics_screen.dart';
import 'package:item_tracker/screens/my_screen.dart'; // 新增导入

class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  int _selectedIndex = 0;
  static List<Widget> _widgetOptions = <Widget>[
    ItemListScreen(), 
    StatisticsScreen(),
    MyScreen(),
  ];

  void _onItemTapped(int index) {
    setState(() {
      _selectedIndex = index;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('物品记录器'),
      ),
      body: Center(
        child: _widgetOptions.elementAt(_selectedIndex),
      ),
      bottomNavigationBar: BottomNavigationBar(
        items: const <BottomNavigationBarItem>[
          BottomNavigationBarItem(
            icon: Icon(Icons.add_business_sharp),
            label: '首页',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.person),
            label: '我的',
          ),
        ],
        currentIndex: _selectedIndex,
        selectedItemColor: Colors.blue,
        onTap: _onItemTapped,
      ),
    );
  }
}