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优化项目结构

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DelLevin-Home
2026-07-05 13:58:25 +08:00
parent 82aca12402
commit de180eee47
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lib/pages/home/home_page.dart Normal file
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import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../providers/app_provider.dart';
import '../utils/user_prefs.dart';
import '../utils/responsive.dart';
import '../widgets/custom_drawer.dart';
import '../widgets/bottom_nav_bar.dart';
import '../widgets/add_sheet.dart';
import 'main_content_page.dart';
import 'profile_page.dart';
/// 主页 - 包含底部导航，可切换主页/我的
class HomePage extends StatefulWidget {
const HomePage({super.key});
@override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
final PageController _pageController = PageController();
bool _isSwitchingPage = false;
int _lastNavIndex = 0;
@override
void initState() {
super.initState();
WidgetsBinding.instance.addPostFrameCallback((_) {
_lastNavIndex = context.read<AppProvider>().bottomNavIndex;
});
}
@override
void dispose() {
_pageController.dispose();
super.dispose();
}
void _onNavIndexChanged(AppProvider provider) {
final currentPage = provider.bottomNavIndex == 0 ? 0 : 1;
if (currentPage == _lastNavIndex) return;
_lastNavIndex = currentPage;
if (!_pageController.hasClients) return;
if (_pageController.page?.round() == currentPage) return;
WidgetsBinding.instance.addPostFrameCallback((_) {
if (!mounted) return;
_isSwitchingPage = true;
_pageController.jumpToPage(currentPage);
Future.delayed(const Duration(milliseconds: 300), () {
if (mounted) {
_isSwitchingPage = false;
provider.setBottomNavVisible(true);
}
});
});
}
@override
Widget build(BuildContext context) {
if (Breakpoint.isTablet(context)) {
return _buildTabletLayout(context);
}
return _buildPhoneLayout(context);
}
Widget _buildTabletLayout(BuildContext context) {
final colors = Theme.of(context).colorScheme;
return Consumer<AppProvider>(
builder: (context, provider, child) {
_onNavIndexChanged(provider);
return Scaffold(
body: Row(
children: [
SizedBox(
width: 260,
child: Material(
color: colors.surfaceContainerHigh,
child: const CustomDrawer(embedded: true),
),
),
NavigationRail(
selectedIndex: provider.bottomNavIndex == 0 ? 0 : 1,
backgroundColor: colors.surface,
labelType: NavigationRailLabelType.all,
leading: Padding(
padding: const EdgeInsets.only(top: 8, bottom: 12),
child: FloatingActionButton.small(
onPressed: () => showAddSheet(context, provider),
child: const Icon(Icons.add),
),
),
onDestinationSelected: (index) {
provider.setBottomNavIndex(index == 0 ? 0 : 2);
},
destinations: const [
NavigationRailDestination(
icon: Icon(Icons.home_outlined),
selectedIcon: Icon(Icons.home),
label: Text('首页'),
),
NavigationRailDestination(
icon: Icon(Icons.person_outline),
selectedIcon: Icon(Icons.person),
label: Text('我的'),
),
],
),
Expanded(child: _buildPageView(provider)),
],
),
);
},
);
}
Widget _buildPhoneLayout(BuildContext context) {
return Scaffold(
drawer: context.watch<AppProvider>().bottomNavIndex != 1
? const CustomDrawer()
: null,
body: Consumer<AppProvider>(
builder: (context, provider, child) {
_onNavIndexChanged(provider);
return NotificationListener<ScrollNotification>(
onNotification: (notification) {
if (_isSwitchingPage) return false;
if (notification is ScrollUpdateNotification) {
final delta = notification.scrollDelta;
if (delta != null && delta.abs() > 2) {
final userPrefs = UserPrefs();
if (!userPrefs.hideBottomNavOnScroll) return false;
if (delta < 0) {
provider.setBottomNavVisible(true);
} else {
provider.setBottomNavVisible(false);
}
}
}
return false;
},
child: Stack(
children: [
_buildPageView(provider),
// 底部导航栏区域
Positioned(
left: 0,
right: 0,
bottom: 0,
child: AnimatedSlide(
offset: provider.bottomNavVisible
? Offset.zero
: const Offset(-1, 0),
duration: const Duration(milliseconds: 300),
curve: Curves.easeInOut,
child: const CustomBottomNavBar(),
),
),
if (!provider.bottomNavVisible)
Positioned(
left: 0,
bottom: MediaQuery.of(context).padding.bottom + 20,
child: GestureDetector(
onTap: () => provider.setBottomNavVisible(true),
onHorizontalDragEnd: (details) {
if (details.primaryVelocity != null &&
details.primaryVelocity! > 0) {
provider.setBottomNavVisible(true);
}
},
child: Container(
width: 44,
height: 56,
decoration: BoxDecoration(
color: Theme.of(context).colorScheme.surface,
borderRadius: const BorderRadius.horizontal(
right: Radius.circular(28)),
boxShadow: [
BoxShadow(
color: Colors.black.withValues(alpha: 0.08),
blurRadius: 20,
offset: const Offset(0, 4),
spreadRadius: 0,
),
],
),
child: Center(
child: Icon(
Icons.chevron_right,
color: Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.4),
size: 24,
),
),
),
),
),
],
),
);
},
),
);
}
Widget _buildPageView(AppProvider provider) {
return PageView(
controller: _pageController,
physics: const NeverScrollableScrollPhysics(),
onPageChanged: (index) {
if (index == 0) {
provider.setBottomNavIndex(0);
} else if (index == 1) {
provider.setBottomNavIndex(2);
}
},
children: [
const MainContentPage(),
const ProfilePage(),
],
);
}
}