108 lines
2.8 KiB
Dart
108 lines
2.8 KiB
Dart
import 'package:flutter/material.dart';
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import '../../home/screens/home_screen.dart';
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import '../../learning/screens/learning_home_screen.dart';
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import '../../profile/screens/profile_home_screen.dart';
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/// 主应用界面，包含底部导航栏
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class MainAppScreen extends StatefulWidget {
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const MainAppScreen({super.key});
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@override
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State<MainAppScreen> createState() => _MainAppScreenState();
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}
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class _MainAppScreenState extends State<MainAppScreen> {
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int _currentIndex = 0;
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final List<Widget> _pages = [
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const HomeScreen(),
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const LearningHomeScreen(),
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const ProfileHomeScreen(),
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];
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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body: IndexedStack(
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index: _currentIndex,
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children: _pages,
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),
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bottomNavigationBar: Container(
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decoration: BoxDecoration(
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color: Colors.white,
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.1),
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blurRadius: 10,
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offset: const Offset(0, -2),
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),
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],
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),
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child: SafeArea(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 8.0, vertical: 8.0),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceAround,
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children: [
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_buildNavItem(
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icon: Icons.home,
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label: '首页',
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index: 0,
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),
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_buildNavItem(
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icon: Icons.school,
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label: '学习',
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index: 1,
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),
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_buildNavItem(
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icon: Icons.person,
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label: '我的',
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index: 2,
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),
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],
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),
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),
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),
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),
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);
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}
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Widget _buildNavItem({
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required IconData icon,
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required String label,
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required int index,
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}) {
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final isSelected = _currentIndex == index;
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final color = isSelected ? const Color(0xFF2196F3) : Colors.grey;
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return GestureDetector(
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onTap: () {
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setState(() {
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_currentIndex = index;
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});
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},
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child: Container(
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padding: const EdgeInsets.symmetric(vertical: 4, horizontal: 8),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(
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icon,
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color: color,
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size: 24,
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),
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const SizedBox(height: 2),
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Text(
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label,
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style: TextStyle(
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color: color,
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fontSize: 12,
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fontWeight: isSelected ? FontWeight.w600 : FontWeight.normal,
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),
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),
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],
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),
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),
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);
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}
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} |