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结构重构

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DelLevin-Home
2026-03-12 14:33:28 +08:00
parent f63b5b1843
commit 0f221456cb
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import 'dart:io';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:share_plus/share_plus.dart';
import 'package:cross_file/cross_file.dart';
import '../../providers/app_provider.dart';
import '../../models/data_models.dart';
import '../../utils/toast_util.dart';
import 'book_reviews_page.dart';
import 'book_excerpts_page.dart';
/// 书籍详情页 - 极简主义设计
class BookDetailPage extends StatefulWidget {
final Book book;
const BookDetailPage({super.key, required this.book});
@override
State<BookDetailPage> createState() => _BookDetailPageState();
}
class _BookDetailPageState extends State<BookDetailPage> {
@override
void didChangeDependencies() {
super.didChangeDependencies();
// 页面获得焦点时刷新数据
_refreshBookData();
}
void _refreshBookData() {
final provider = context.read<AppProvider>();
// 强制刷新当前书籍数据
provider.loadBooks();
}
@override
Widget build(BuildContext context) {
// 从 Provider 获取最新的 book 数据，实现动态刷新
final book = context.watch<AppProvider>().books
.where((b) => b.id == widget.book.id)
.firstOrNull ?? widget.book;
return Scaffold(
backgroundColor: Colors.white,
body: CustomScrollView(
slivers: [
// 顶部封面区域
_buildSliverAppBar(book),
// 内容区域
SliverToBoxAdapter(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// 基本信息
_buildBasicInfo(book),
const Divider(height: 0.5, thickness: 0.5, color: Color(0xFFE5E5E5)),
// 作者信息
_buildAuthorsSection(book),
// 出版社
if (book.publisher != null && book.publisher!.isNotEmpty)
_buildPublisherSection(book),
// 类型
if (book.genres.isNotEmpty)
_buildGenresSection(book),
const Divider(height: 0.5, thickness: 0.5, color: Color(0xFFE5E5E5)),
// 简介
if (book.summary != null && book.summary!.isNotEmpty)
_buildSummarySection(book),
const Divider(height: 0.5, thickness: 0.5, color: Color(0xFFE5E5E5)),
// 书评和摘抄入口
_buildExtraSections(book),
const SizedBox(height: 48),
],
),
),
],
),
// 底部操作栏
bottomNavigationBar: _buildBottomBar(),
);
}
/// 构建顶部 AppBar
Widget _buildSliverAppBar(Book book) {
final hasCover = book.coverPath != null && book.coverPath!.isNotEmpty;
return SliverAppBar(
expandedHeight: 320,
pinned: true,
backgroundColor: const Color(0xFFF5F5F5),
flexibleSpace: FlexibleSpaceBar(
background: _buildCoverSection(book),
),
actions: [
// 下载封面按钮（仅当有封面时显示）
if (hasCover)
Container(
margin: const EdgeInsets.all(8),
decoration: const BoxDecoration(
color: Colors.white,
),
child: IconButton(
icon: const Icon(Icons.download_outlined, color: Color(0xFF666666)),
onPressed: () => _downloadCover(book),
tooltip: '下载封面',
),
),
// 清空封面按钮（仅当有封面时显示）
if (hasCover)
Container(
margin: const EdgeInsets.all(8),
decoration: const BoxDecoration(
color: Colors.white,
),
child: IconButton(
icon: const Icon(Icons.hide_image_outlined, color: Color(0xFF666666)),
onPressed: () => _showClearCoverDialog(book),
tooltip: '清空封面',
),
),
// 编辑按钮
Container(
margin: const EdgeInsets.all(8),
decoration: const BoxDecoration(
color: Colors.white,
),
child: IconButton(
icon: const Icon(Icons.edit_outlined, color: Color(0xFF1A1A1A)),
onPressed: () => _navigateToEdit(context),
),
),
const SizedBox(width: 8),
],
);
}
/// 构建封面区域
Widget _buildCoverSection(Book book) {
return SizedBox.expand(
child: book.coverPath != null && book.coverPath!.isNotEmpty
? Image.file(
File(book.coverPath!),
fit: BoxFit.cover,
errorBuilder: (_, __, ___) => _buildCoverPlaceholder(),
)
: _buildCoverPlaceholder(),
);
}
Widget _buildCoverPlaceholder() {
return const Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.menu_book,
size: 64,
color: Color(0xFFCCCCCC),
),
SizedBox(height: 16),
Text(
'暂无封面',
style: TextStyle(
fontSize: 14,
color: Color(0xFF999999),
),
),
],
),
);
}
/// 构建基本信息
Widget _buildBasicInfo(Book book) {
return Padding(
padding: const EdgeInsets.all(24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// 书名
Text(
book.title,
style: const TextStyle(
fontSize: 24,
fontWeight: FontWeight.w600,
color: Color(0xFF1A1A1A),
height: 1.3,
),
),
// 别名（显示在主名称下面，用 / 分隔）
if (book.alternateTitles.isNotEmpty) ...[
const SizedBox(height: 8),
Text(
book.alternateTitles.join(' / '),
style: const TextStyle(
fontSize: 14,
color: Color(0xFF999999),
height: 1.4,
),
),
],
const SizedBox(height: 16),
// 评分和状态
Row(
children: [
if (book.rating != null) ...[
const Icon(
Icons.star,
size: 20,
color: Color(0xFF1A1A1A),
),
const SizedBox(width: 4),
Text(
book.rating!.toStringAsFixed(1),
style: const TextStyle(
fontSize: 18,
fontWeight: FontWeight.w600,
color: Color(0xFF1A1A1A),
),
),
const SizedBox(width: 16),
],
_buildStatusTag(book),
],
),
const SizedBox(height: 8),
// 时间信息
Text(
'添加于 ${_formatDate(book.createdAt)}',
style: const TextStyle(
fontSize: 12,
color: Color(0xFF999999),
),
),
],
),
);
}
/// 构建状态标签
Widget _buildStatusTag(Book book) {
String label;
Color color;
switch (book.status) {
case 'read':
label = '已读';
color = const Color(0xFF1A1A1A);
break;
case 'reading':
label = '在读';
color = const Color(0xFF666666);
break;
case 'want_to_read':
label = '想读';
color = const Color(0xFF999999);
break;
default:
label = '未知';
color = const Color(0xFFCCCCCC);
}
return Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
decoration: BoxDecoration(
color: color,
),
child: Text(
label,
style: const TextStyle(
fontSize: 12,
color: Colors.white,
fontWeight: FontWeight.w500,
),
),
);
}
/// 构建作者区域
Widget _buildAuthorsSection(Book book) {
return Padding(
padding: const EdgeInsets.all(24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'作者',
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.w600,
color: Color(0xFF999999),
letterSpacing: 1,
),
),
const SizedBox(height: 12),
Wrap(
spacing: 8,
runSpacing: 8,
children: book.authors.map((author) {
return Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
decoration: BoxDecoration(
color: const Color(0xFFF5F5F5),
border: Border.all(color: const Color(0xFFE5E5E5)),
),
child: Text(
author,
style: const TextStyle(
fontSize: 14,
color: Color(0xFF1A1A1A),
),
),
);
}).toList(),
),
],
),
);
}
/// 构建出版社区域
Widget _buildPublisherSection(Book book) {
return Padding(
padding: const EdgeInsets.fromLTRB(24, 0, 24, 24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'出版社',
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.w600,
color: Color(0xFF999999),
letterSpacing: 1,
),
),
const SizedBox(height: 8),
Text(
book.publisher!,
style: const TextStyle(
fontSize: 15,
color: Color(0xFF1A1A1A),
),
),
],
),
);
}
/// 构建类型区域
Widget _buildGenresSection(Book book) {
return Padding(
padding: const EdgeInsets.fromLTRB(24, 0, 24, 24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'类型',
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.w600,
color: Color(0xFF999999),
letterSpacing: 1,
),
),
const SizedBox(height: 12),
Wrap(
spacing: 8,
runSpacing: 8,
children: book.genres.map((genre) {
return Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
decoration: BoxDecoration(
border: Border.all(color: const Color(0xFFE5E5E5)),
),
child: Text(
genre,
style: const TextStyle(
fontSize: 13,
color: Color(0xFF666666),
),
),
);
}).toList(),
),
],
),
);
}
/// 构建简介区域
Widget _buildSummarySection(Book book) {
return Padding(
padding: const EdgeInsets.all(24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'简介',
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.w600,
color: Color(0xFF999999),
letterSpacing: 1,
),
),
const SizedBox(height: 12),
Text(
book.summary!,
style: const TextStyle(
fontSize: 15,
color: Color(0xFF1A1A1A),
height: 1.6,
),
),
],
),
);
}
/// 构建额外功能区域（书评、摘抄）
Widget _buildExtraSections(Book book) {
return Padding(
padding: const EdgeInsets.all(24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'更多',
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.w600,
color: Color(0xFF999999),
letterSpacing: 1,
),
),
const SizedBox(height: 16),
// 书评入口
GestureDetector(
onTap: () => _navigateToReviews(book),
child: Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
border: Border.all(color: const Color(0xFFE5E5E5)),
),
child: Row(
children: [
const Icon(
Icons.rate_review_outlined,
size: 24,
color: Color(0xFF666666),
),
const SizedBox(width: 16),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'书评',
style: TextStyle(
fontSize: 15,
fontWeight: FontWeight.w500,
color: Color(0xFF1A1A1A),
),
),
const SizedBox(height: 4),
FutureBuilder<int>(
future: context.read<AppProvider>().getBookReviewCount(book.id),
builder: (context, snapshot) {
final count = snapshot.data ?? 0;
return Text(
count > 0 ? '$count 条书评' : '暂无书评',
style: const TextStyle(
fontSize: 13,
color: Color(0xFF999999),
),
);
},
),
],
),
),
const Icon(
Icons.chevron_right,
color: Color(0xFF999999),
),
],
),
),
),
const SizedBox(height: 12),
// 摘抄入口
GestureDetector(
onTap: () => _navigateToExcerpts(book),
child: Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
border: Border.all(color: const Color(0xFFE5E5E5)),
),
child: Row(
children: [
const Icon(
Icons.format_quote_outlined,
size: 24,
color: Color(0xFF666666),
),
const SizedBox(width: 16),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'摘抄',
style: TextStyle(
fontSize: 15,
fontWeight: FontWeight.w500,
color: Color(0xFF1A1A1A),
),
),
const SizedBox(height: 4),
FutureBuilder<int>(
future: context.read<AppProvider>().getBookExcerptCount(book.id),
builder: (context, snapshot) {
final count = snapshot.data ?? 0;
return Text(
count > 0 ? '$count 条摘抄' : '暂无摘抄',
style: const TextStyle(
fontSize: 13,
color: Color(0xFF999999),
),
);
},
),
],
),
),
const Icon(
Icons.chevron_right,
color: Color(0xFF999999),
),
],
),
),
),
],
),
);
}
void _navigateToReviews(Book book) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => BookReviewsPage(book: book),
),
);
}
void _navigateToExcerpts(Book book) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => BookExcerptsPage(book: book),
),
);
}
/// 构建底部操作栏
Widget _buildBottomBar() {
return Container(
decoration: const BoxDecoration(
border: Border(
top: BorderSide(color: Color(0xFFE5E5E5), width: 0.5),
),
),
child: SafeArea(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
child: Row(
children: [
Expanded(
child: OutlinedButton(
onPressed: () => _navigateToEdit(context),
style: OutlinedButton.styleFrom(
foregroundColor: const Color(0xFF1A1A1A),
side: const BorderSide(color: Color(0xFF1A1A1A)),
shape: const RoundedRectangleBorder(borderRadius: BorderRadius.zero),
padding: const EdgeInsets.symmetric(vertical: 12),
),
child: const Text('编辑'),
),
),
const SizedBox(width: 16),
Expanded(
child: OutlinedButton(
onPressed: () => _showDeleteDialog(context),
style: OutlinedButton.styleFrom(
foregroundColor: Colors.red,
side: const BorderSide(color: Colors.red),
shape: const RoundedRectangleBorder(borderRadius: BorderRadius.zero),
padding: const EdgeInsets.symmetric(vertical: 12),
),
child: const Text('删除'),
),
),
],
),
),
),
);
}
/// 格式化日期
String _formatDate(DateTime date) {
return '${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')}';
}
/// 跳转到编辑页面
void _navigateToEdit(BuildContext context) {
Navigator.pushNamed(context, '/book-form', arguments: widget.book).then((_) {
context.read<AppProvider>().loadBooks();
});
}
/// 显示删除对话框
void _showDeleteDialog(BuildContext context) {
showDialog(
context: context,
builder: (context) => AlertDialog(
backgroundColor: Colors.white,
elevation: 0,
shape: const RoundedRectangleBorder(borderRadius: BorderRadius.zero),
title: const Text('确认删除'),
content: Text('确定要删除"${widget.book.title}"吗？'),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('取消', style: TextStyle(color: Color(0xFF666666))),
),
TextButton(
onPressed: () async {
await context.read<AppProvider>().removeBook(widget.book.id);
if (!mounted) return;
Navigator.pop(context);
Navigator.pop(context);
ToastUtil.show(context, '已删除');
},
child: const Text('删除', style: TextStyle(color: Colors.red)),
),
],
),
);
}
/// 显示清空封面对话框
void _showClearCoverDialog(Book book) {
showDialog(
context: context,
builder: (context) => AlertDialog(
backgroundColor: Colors.white,
elevation: 0,
shape: const RoundedRectangleBorder(borderRadius: BorderRadius.zero),
title: const Text('清空封面'),
content: const Text('确定要清空封面吗？清空后将使用默认占位图。'),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('取消', style: TextStyle(color: Color(0xFF666666))),
),
TextButton(
onPressed: () async {
Navigator.pop(context);
final updatedBook = book.copyWith(
coverPath: null,
updatedAt: DateTime.now(),
);
await context.read<AppProvider>().updateBook(updatedBook);
if (mounted) {
ToastUtil.show(context, '封面已清空');
}
},
child: const Text('清空', style: TextStyle(color: Colors.red)),
),
],
),
);
}
/// 下载封面到本地
Future<void> _downloadCover(Book book) async {
if (book.coverPath == null || book.coverPath!.isEmpty) {
ToastUtil.show(context, '没有可下载的封面');
return;
}
try {
final sourceFile = File(book.coverPath!);
if (!await sourceFile.exists()) {
ToastUtil.show(context, '封面文件不存在');
return;
}
// 生成文件名：书籍名称_时间戳_封面.jpg
final timestamp = DateTime.now().millisecondsSinceEpoch;
final fileName = '${book.title}_${timestamp}_封面.jpg';
// 获取临时目录路径
final tempDir = await Directory.systemTemp.createTemp();
final tempFile = File('${tempDir.path}/$fileName');
await sourceFile.copy(tempFile.path);
// 使用分享功能让用户选择保存位置
await Share.shareXFiles(
[XFile(tempFile.path)],
subject: '${book.title} 封面',
text: '下载自 MookNote',
);
} catch (e) {
ToastUtil.show(context, '下载失败: $e');
}
}
}