generated from dellevin/template
相册功能优化
This commit is contained in:
DelLevin-Home
195
lib/pages/explore/gallery_page.dart
Normal file
195
lib/pages/explore/gallery_page.dart
Normal file
@@ -0,0 +1,195 @@
|
||||
import 'package:flutter/material.dart';
|
||||
import '../../data/gallery/gallery_dao.dart';
|
||||
import '../../models/data_models.dart';
|
||||
import '../../widgets/fade_in_local_image.dart';
|
||||
import 'gallery_viewer_page.dart';
|
||||
|
||||
/// 类别显示名映射
|
||||
const _categoryLabels = {
|
||||
'movie_poster': '影视海报',
|
||||
'movie_posters': '海报墙',
|
||||
'book_cover': '书籍封面',
|
||||
'note_image': '笔记图片',
|
||||
'game_cover': '游戏封面',
|
||||
'game_screenshot': '游戏截图',
|
||||
'person_photo': '人物照片',
|
||||
'movie_character': '影视角色',
|
||||
'book_character': '书籍角色',
|
||||
'game_character': '游戏角色',
|
||||
};
|
||||
|
||||
class GalleryPage extends StatefulWidget {
|
||||
const GalleryPage({super.key});
|
||||
|
||||
@override
|
||||
State<GalleryPage> createState() => _GalleryPageState();
|
||||
}
|
||||
|
||||
class _GalleryPageState extends State<GalleryPage> {
|
||||
final GalleryDao _dao = GalleryDao();
|
||||
List<GalleryItem> _allItems = [];
|
||||
bool _loading = true;
|
||||
String? _error;
|
||||
String? _selectedCategory; // null = 全部
|
||||
bool _descending = true; // 按时间倒序
|
||||
|
||||
@override
|
||||
void initState() {
|
||||
super.initState();
|
||||
_loadImages();
|
||||
}
|
||||
|
||||
Future<void> _loadImages() async {
|
||||
try {
|
||||
final items = await _dao.getAllImages();
|
||||
if (!mounted) return;
|
||||
setState(() {
|
||||
_allItems = items;
|
||||
_loading = false;
|
||||
});
|
||||
} catch (e) {
|
||||
if (!mounted) return;
|
||||
setState(() {
|
||||
_error = '加载失败：$e';
|
||||
_loading = false;
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
List<GalleryItem> get _filteredItems {
|
||||
var items = _allItems;
|
||||
if (_selectedCategory != null) {
|
||||
items = items.where((i) => i.category == _selectedCategory).toList();
|
||||
}
|
||||
if (!_descending) {
|
||||
items = items.reversed.toList();
|
||||
}
|
||||
return items;
|
||||
}
|
||||
|
||||
List<String> get _availableCategories {
|
||||
final set = _allItems.map((i) => i.category).toSet();
|
||||
// 按预定义顺序排列
|
||||
return _categoryLabels.keys.where((k) => set.contains(k)).toList();
|
||||
}
|
||||
|
||||
void _openPreview(int index) {
|
||||
final items = _filteredItems;
|
||||
Navigator.push(
|
||||
context,
|
||||
MaterialPageRoute(
|
||||
builder: (_) => GalleryViewerPage(items: items, initialIndex: index),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final colors = Theme.of(context).colorScheme;
|
||||
|
||||
return Scaffold(
|
||||
appBar: AppBar(
|
||||
title: const Text('图库'),
|
||||
actions: [
|
||||
if (!_loading && _allItems.isNotEmpty)
|
||||
IconButton(
|
||||
icon: Icon(_descending ? Icons.arrow_downward : Icons.arrow_upward, size: 20),
|
||||
tooltip: _descending ? '当前：最新在前' : '当前：最早在前',
|
||||
onPressed: () => setState(() => _descending = !_descending),
|
||||
),
|
||||
],
|
||||
),
|
||||
body: _loading
|
||||
? const Center(child: CircularProgressIndicator())
|
||||
: _error != null
|
||||
? Center(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(24),
|
||||
child: Text(_error!, textAlign: TextAlign.center, style: TextStyle(color: colors.error)),
|
||||
),
|
||||
)
|
||||
: _allItems.isEmpty
|
||||
? Center(
|
||||
child: Column(
|
||||
mainAxisSize: MainAxisSize.min,
|
||||
children: [
|
||||
Icon(Icons.photo_library_outlined, size: 64, color: colors.onSurface.withValues(alpha: 0.2)),
|
||||
const SizedBox(height: 12),
|
||||
Text('还没有保存过图片', style: TextStyle(color: colors.onSurface.withValues(alpha: 0.5))),
|
||||
],
|
||||
),
|
||||
)
|
||||
: Column(
|
||||
children: [
|
||||
// 类别筛选条
|
||||
if (_availableCategories.length > 1)
|
||||
SizedBox(
|
||||
height: 44,
|
||||
child: ListView(
|
||||
scrollDirection: Axis.horizontal,
|
||||
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
|
||||
children: [
|
||||
_buildChip(null, '全部', colors),
|
||||
..._availableCategories.map((c) => _buildChip(c, _categoryLabels[c] ?? c, colors)),
|
||||
],
|
||||
),
|
||||
),
|
||||
// 网格
|
||||
Expanded(
|
||||
child: GridView.builder(
|
||||
padding: const EdgeInsets.all(4),
|
||||
gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
|
||||
crossAxisCount: 3,
|
||||
crossAxisSpacing: 4,
|
||||
mainAxisSpacing: 4,
|
||||
),
|
||||
itemCount: _filteredItems.length,
|
||||
itemBuilder: (context, index) {
|
||||
final item = _filteredItems[index];
|
||||
return GestureDetector(
|
||||
onTap: () => _openPreview(index),
|
||||
child: ClipRRect(
|
||||
borderRadius: BorderRadius.circular(8),
|
||||
child: FadeInLocalImage(
|
||||
path: item.path,
|
||||
fit: BoxFit.cover,
|
||||
errorWidget: Container(
|
||||
color: colors.surfaceContainerHighest,
|
||||
child: Icon(Icons.broken_image_outlined, color: colors.onSurface.withValues(alpha: 0.3)),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
},
|
||||
),
|
||||
),
|
||||
// 底部计数
|
||||
SafeArea(
|
||||
top: false,
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.symmetric(vertical: 8),
|
||||
child: Text(
|
||||
'共 ${_filteredItems.length} 张图片',
|
||||
style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.5)),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
Widget _buildChip(String? category, String label, ColorScheme colors) {
|
||||
final selected = _selectedCategory == category;
|
||||
return Padding(
|
||||
padding: const EdgeInsets.only(right: 8),
|
||||
child: FilterChip(
|
||||
label: Text(label),
|
||||
selected: selected,
|
||||
onSelected: (_) => setState(() => _selectedCategory = selected ? null : category),
|
||||
showCheckmark: false,
|
||||
padding: const EdgeInsets.symmetric(horizontal: 4),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
253
lib/pages/explore/gallery_viewer_page.dart
Normal file
253
lib/pages/explore/gallery_viewer_page.dart
Normal file
@@ -0,0 +1,253 @@
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:provider/provider.dart';
|
||||
import '../../data/movie/movie_dao.dart';
|
||||
import '../../data/book/book_dao.dart';
|
||||
import '../../data/note/note_dao.dart';
|
||||
import '../../data/game/game_dao.dart';
|
||||
import '../../models/data_models.dart';
|
||||
import '../../providers/app_provider.dart';
|
||||
import '../../widgets/fade_in_local_image.dart';
|
||||
import '../../utils/image_saver.dart';
|
||||
import '../movies/movie_detail_page.dart';
|
||||
import '../book/book_detail_page.dart';
|
||||
import '../note/note_detail_page.dart';
|
||||
import '../game/game_detail_page.dart';
|
||||
import '../people/person_detail_page.dart';
|
||||
|
||||
/// 图库全屏预览页 —— 支持左右滑动、双指缩放、归属信息展示与跳转
|
||||
class GalleryViewerPage extends StatefulWidget {
|
||||
final List<GalleryItem> items;
|
||||
final int initialIndex;
|
||||
|
||||
const GalleryViewerPage({
|
||||
super.key,
|
||||
required this.items,
|
||||
required this.initialIndex,
|
||||
});
|
||||
|
||||
@override
|
||||
State<GalleryViewerPage> createState() => _GalleryViewerPageState();
|
||||
}
|
||||
|
||||
class _GalleryViewerPageState extends State<GalleryViewerPage> {
|
||||
late PageController _pageController;
|
||||
late int _currentIndex;
|
||||
bool _infoVisible = true;
|
||||
|
||||
@override
|
||||
void initState() {
|
||||
super.initState();
|
||||
_currentIndex = widget.initialIndex;
|
||||
_pageController = PageController(initialPage: widget.initialIndex);
|
||||
}
|
||||
|
||||
@override
|
||||
void dispose() {
|
||||
_pageController.dispose();
|
||||
super.dispose();
|
||||
}
|
||||
|
||||
String _buildInfoText(GalleryItem item) {
|
||||
if (item.parentTitle != null && item.parentTitle!.isNotEmpty) {
|
||||
return '来自：《${item.parentTitle}》— ${item.entityTitle}';
|
||||
}
|
||||
return '来自：《${item.entityTitle}》';
|
||||
}
|
||||
|
||||
Future<void> _navigateToDetail(GalleryItem item) async {
|
||||
dynamic target;
|
||||
switch (item.entityType) {
|
||||
case 'movie':
|
||||
target = await MovieDao().getMovieById(item.entityId);
|
||||
break;
|
||||
case 'book':
|
||||
target = await BookDao().getBookById(item.entityId);
|
||||
break;
|
||||
case 'note':
|
||||
target = await NoteDao().getNoteById(item.entityId);
|
||||
break;
|
||||
case 'game':
|
||||
target = await GameDao().getGameById(item.entityId);
|
||||
break;
|
||||
case 'person':
|
||||
if (!mounted) return;
|
||||
target = await context.read<AppProvider>().getPersonById(item.entityId);
|
||||
break;
|
||||
}
|
||||
if (!mounted) return;
|
||||
if (target == null) {
|
||||
ScaffoldMessenger.of(context).showSnackBar(
|
||||
const SnackBar(content: Text('原记录已不存在'), duration: Duration(seconds: 2)),
|
||||
);
|
||||
return;
|
||||
}
|
||||
Widget page;
|
||||
switch (item.entityType) {
|
||||
case 'movie':
|
||||
page = MovieDetailPage(movie: target as Movie);
|
||||
break;
|
||||
case 'book':
|
||||
page = BookDetailPage(book: target as Book);
|
||||
break;
|
||||
case 'note':
|
||||
page = NoteDetailPage(note: target as Note);
|
||||
break;
|
||||
case 'game':
|
||||
page = GameDetailPage(game: target as Game);
|
||||
break;
|
||||
case 'person':
|
||||
page = PersonDetailPage(person: target as Person);
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
Navigator.pop(context); // 关闭全屏预览
|
||||
Navigator.push(context, MaterialPageRoute(builder: (_) => page));
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Scaffold(
|
||||
backgroundColor: Colors.black,
|
||||
body: Stack(
|
||||
children: [
|
||||
// 图片页面视图
|
||||
PageView.builder(
|
||||
controller: _pageController,
|
||||
itemCount: widget.items.length,
|
||||
onPageChanged: (index) => setState(() => _currentIndex = index),
|
||||
itemBuilder: (context, index) {
|
||||
final item = widget.items[index];
|
||||
return GestureDetector(
|
||||
onTap: () => setState(() => _infoVisible = !_infoVisible),
|
||||
onLongPress: () => ImageSaver.showSaveFromFileSheet(item.path, context: context),
|
||||
child: InteractiveViewer(
|
||||
minScale: 0.5,
|
||||
maxScale: 3.0,
|
||||
child: Center(
|
||||
child: FadeInLocalImage(
|
||||
path: item.path,
|
||||
fit: BoxFit.contain,
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
},
|
||||
),
|
||||
|
||||
// 顶部导航栏
|
||||
if (_infoVisible)
|
||||
Positioned(
|
||||
top: 0,
|
||||
left: 0,
|
||||
right: 0,
|
||||
child: SafeArea(
|
||||
child: Container(
|
||||
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 8),
|
||||
decoration: BoxDecoration(
|
||||
gradient: LinearGradient(
|
||||
begin: Alignment.topCenter,
|
||||
end: Alignment.bottomCenter,
|
||||
colors: [
|
||||
Colors.black.withValues(alpha: 0.7),
|
||||
Colors.transparent,
|
||||
],
|
||||
),
|
||||
),
|
||||
child: Row(
|
||||
children: [
|
||||
IconButton(
|
||||
onPressed: () => Navigator.pop(context),
|
||||
icon: const Icon(Icons.arrow_back, color: Colors.white),
|
||||
),
|
||||
const Spacer(),
|
||||
Text(
|
||||
'${_currentIndex + 1} / ${widget.items.length}',
|
||||
style: const TextStyle(
|
||||
color: Colors.white,
|
||||
fontSize: 16,
|
||||
fontWeight: FontWeight.w500,
|
||||
),
|
||||
),
|
||||
const Spacer(),
|
||||
const SizedBox(width: 48),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
|
||||
// 底部归属信息条
|
||||
if (_infoVisible)
|
||||
Positioned(
|
||||
bottom: 0,
|
||||
left: 0,
|
||||
right: 0,
|
||||
child: SafeArea(
|
||||
top: false,
|
||||
child: GestureDetector(
|
||||
onTap: () => _navigateToDetail(widget.items[_currentIndex]),
|
||||
child: Container(
|
||||
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
|
||||
decoration: BoxDecoration(
|
||||
gradient: LinearGradient(
|
||||
begin: Alignment.bottomCenter,
|
||||
end: Alignment.topCenter,
|
||||
colors: [
|
||||
Colors.black.withValues(alpha: 0.7),
|
||||
Colors.transparent,
|
||||
],
|
||||
),
|
||||
),
|
||||
child: Row(
|
||||
children: [
|
||||
const Icon(Icons.link, color: Colors.white70, size: 16),
|
||||
const SizedBox(width: 8),
|
||||
Expanded(
|
||||
child: Text(
|
||||
_buildInfoText(widget.items[_currentIndex]),
|
||||
style: const TextStyle(color: Colors.white, fontSize: 14),
|
||||
maxLines: 1,
|
||||
overflow: TextOverflow.ellipsis,
|
||||
),
|
||||
),
|
||||
const Icon(Icons.chevron_right, color: Colors.white70, size: 20),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
|
||||
// 底部圆点指示器（图片较多时不显示，避免溢出）
|
||||
if (widget.items.length > 1 && widget.items.length <= 20 && _infoVisible)
|
||||
Positioned(
|
||||
bottom: 56,
|
||||
left: 0,
|
||||
right: 0,
|
||||
child: SafeArea(
|
||||
top: false,
|
||||
child: Row(
|
||||
mainAxisAlignment: MainAxisAlignment.center,
|
||||
children: List.generate(
|
||||
widget.items.length,
|
||||
(index) => Container(
|
||||
width: 8,
|
||||
height: 8,
|
||||
margin: const EdgeInsets.symmetric(horizontal: 4),
|
||||
decoration: BoxDecoration(
|
||||
shape: BoxShape.circle,
|
||||
color: index == _currentIndex
|
||||
? Colors.white
|
||||
: Colors.white.withValues(alpha: 0.4),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user