适配深色模式

2026-05-26 05:10:21 +08:00
parent b36f50827f
commit 73f3795e65
53 changed files with 3846 additions and 3211 deletions
--- a/lib/pages/book/book_detail_page.dart
+++ b/lib/pages/book/book_detail_page.dart
@@ -13,9 +13,9 @@ import 'book_share_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();
 }
@@ -24,80 +24,54 @@ 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 colors = Theme.of(context).colorScheme;
    final book = context.watch<AppProvider>().books
        .where((b) => b.id == widget.book.id)
        .firstOrNull ?? widget.book;

    return Scaffold(
-      backgroundColor: Colors.white,
+      backgroundColor: colors.surface,
      body: Stack(
        children: [
          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
+                    Divider(height: 0.5, thickness: 0.5, color: colors.outline),
                    _buildAuthorsSection(book),
-
-                    // 类型
                    if (book.genres.isNotEmpty)
                      _buildGenresSection(book),
-
-                    // ISBN
                    if (book.isbn != null && book.isbn!.isNotEmpty)
                      _buildIsbnSection(book),
-
-                    // 出版社
                    if (book.publisher != null && book.publisher!.isNotEmpty)
                      _buildPublisherSection(book),
-
-                    // 出版时间
                    if (book.publishDate != null)
                      _buildPublishDateSection(book),
-                    
-                    const Divider(height: 0.5, thickness: 0.5, color: Color(0xFFE5E5E5)),
-                    
-                    // 简介
+                    Divider(height: 0.5, thickness: 0.5, color: colors.outline),
                    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
+                    Divider(height: 0.5, thickness: 0.5, color: colors.outline),
                    _buildExtraSections(book),
-
                    const SizedBox(height: 120),
                  ],
                ),
              ),
            ],
          ),
-          
-          // 右下角悬浮按钮组
          Positioned(
            right: 16,
            bottom: 24,
@@ -107,9 +81,9 @@ class _BookDetailPageState extends State<BookDetailPage> {
      ),
    );
  }
-  
-  /// 构建右下角悬浮按钮组
+
  Widget _buildFloatingActionButtons(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return Column(
      mainAxisSize: MainAxisSize.min,
      children: [
@@ -117,13 +91,16 @@ class _BookDetailPageState extends State<BookDetailPage> {
          icon: Icons.edit_outlined,
          onPressed: () => _navigateToEdit(context),
          tooltip: '编辑',
+          backgroundColor: colors.primary,
+          foregroundColor: colors.onPrimary,
        ),
        const SizedBox(height: 12),
        _buildFloatingButton(
          icon: Icons.delete_outline,
          onPressed: () => _showDeleteDialog(context),
          tooltip: '删除',
-          backgroundColor: Colors.red,
+          backgroundColor: colors.error,
+          foregroundColor: colors.onError,
        ),
        const SizedBox(height: 12),
        _buildFloatingButton(
@@ -131,17 +108,18 @@ class _BookDetailPageState extends State<BookDetailPage> {
          onPressed: () => _showSharePoster(book),
          tooltip: '分享海报',
          backgroundColor: const Color(0xFF4CAF50),
+          foregroundColor: Colors.white,
        ),
      ],
    );
  }

-  /// 构建单个悬浮按钮
  Widget _buildFloatingButton({
    required IconData icon,
    required VoidCallback onPressed,
    required String tooltip,
-    Color backgroundColor = const Color(0xFF1A1A1A),
+    required Color backgroundColor,
+    required Color foregroundColor,
  }) {
    return Material(
      color: Colors.transparent,
@@ -160,15 +138,15 @@ class _BookDetailPageState extends State<BookDetailPage> {
          ],
        ),
        child: IconButton(
-          icon: Icon(icon, size: 18, color: Colors.white),
+          icon: Icon(icon, size: 18, color: foregroundColor),
          onPressed: onPressed,
+          padding: EdgeInsets.zero,
          tooltip: tooltip,
        ),
      ),
    );
  }

-  /// 构建带背景的返回按钮
  Widget _buildBackButton() {
    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 4, vertical: 8),
@@ -194,21 +172,19 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-  /// 构建顶部 AppBar
  Widget _buildSliverAppBar(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return SliverAppBar(
      expandedHeight: 320,
      pinned: true,
-      backgroundColor: const Color(0xFFF5F5F5),
+      backgroundColor: colors.surfaceContainerHighest,
      leading: _buildBackButton(),
      flexibleSpace: FlexibleSpaceBar(
        background: _buildCoverSection(book),
      ),
-      // 右上角按钮已移到右下角悬浮按钮
    );
  }

-  /// 构建封面区域
  Widget _buildCoverSection(Book book) {
    return SizedBox.expand(
      child: book.coverPath != null && book.coverPath!.isNotEmpty
@@ -220,79 +196,74 @@ class _BookDetailPageState extends State<BookDetailPage> {
          : _buildCoverPlaceholder(),
    );
  }
-  
+
  Widget _buildCoverPlaceholder() {
-    return const Center(
+    final colors = Theme.of(context).colorScheme;
+    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Icon(
            Icons.menu_book,
            size: 64,
-            color: Color(0xFFCCCCCC),
+            color: colors.onSurface.withValues(alpha: 0.25),
          ),
-          SizedBox(height: 16),
+          const SizedBox(height: 16),
          Text(
            '暂无封面',
            style: TextStyle(
              fontSize: 14,
-              color: Color(0xFF999999),
+              color: colors.onSurface.withValues(alpha: 0.4),
            ),
          ),
        ],
      ),
    );
  }
-  
-  /// 构建基本信息
+
  Widget _buildBasicInfo(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return Padding(
      padding: const EdgeInsets.all(24),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
-          // 书名
          Text(
            book.title,
-            style: const TextStyle(
+            style: TextStyle(
              fontSize: 24,
              fontWeight: FontWeight.w600,
-              color: Color(0xFF1A1A1A),
+              color: colors.onSurface,
              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(
+              style: TextStyle(
                fontSize: 14,
-                color: Color(0xFF999999),
+                color: colors.onSurface.withValues(alpha: 0.4),
                height: 1.4,
              ),
            ),
          ],
-
          const SizedBox(height: 16),
-
-          // 评分和状态
          Row(
            children: [
              if (book.rating != null) ...[
-                const Icon(
+                Icon(
                  Icons.star,
                  size: 20,
-                  color: Color(0xFF1A1A1A),
+                  color: colors.onSurface,
                ),
                const SizedBox(width: 4),
                Text(
                  book.rating!.toStringAsFixed(1),
-                  style: const TextStyle(
+                  style: TextStyle(
                    fontSize: 18,
                    fontWeight: FontWeight.w600,
-                    color: Color(0xFF1A1A1A),
+                    color: colors.onSurface,
                  ),
                ),
                const SizedBox(width: 16),
@@ -300,15 +271,12 @@ class _BookDetailPageState extends State<BookDetailPage> {
              _buildStatusTag(book),
            ],
          ),
-
          const SizedBox(height: 8),
-
-          // 时间信息
          Text(
            '添加于 ${_formatDate(book.createdAt)}',
-            style: const TextStyle(
+            style: TextStyle(
              fontSize: 12,
-              color: Color(0xFF999999),
+              color: colors.onSurface.withValues(alpha: 0.4),
            ),
          ),
        ],
@@ -316,33 +284,33 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-  /// 构建状态标签
  Widget _buildStatusTag(Book book) {
+    final colors = Theme.of(context).colorScheme;
    String label;
    Color bgColor;
    Color textColor;
    switch (book.status) {
      case 'read':
        label = '已读';
-        bgColor = const Color(0xFF1A1A1A);
-        textColor = Colors.white;
+        bgColor = colors.primary;
+        textColor = colors.onPrimary;
        break;
      case 'reading':
        label = '在读';
-        bgColor = const Color(0xFFF0F0F0);
-        textColor = const Color(0xFF666666);
+        bgColor = colors.outlineVariant;
+        textColor = colors.onSurface.withValues(alpha: 0.6);
        break;
      case 'want_to_read':
        label = '想读';
-        bgColor = const Color(0xFFF5F5F5);
-        textColor = const Color(0xFF999999);
+        bgColor = colors.surfaceContainerHighest;
+        textColor = colors.onSurface.withValues(alpha: 0.4);
        break;
      default:
        label = '未知';
-        bgColor = const Color(0xFFEEEEEE);
-        textColor = const Color(0xFFCCCCCC);
+        bgColor = colors.outlineVariant;
+        textColor = colors.onSurface.withValues(alpha: 0.25);
    }
-    
+
    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
      decoration: BoxDecoration(
@@ -359,30 +327,30 @@ class _BookDetailPageState extends State<BookDetailPage> {
      ),
    );
  }
-  
-  /// 构建作者区域
+
  Widget _buildAuthorsSection(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
-          const SizedBox(
+          SizedBox(
            width: 64,
            child: Text(
              '作者',
              style: TextStyle(
                fontSize: 13,
-                color: Color(0xFF999999),
+                color: colors.onSurface.withValues(alpha: 0.4),
              ),
            ),
          ),
          Expanded(
            child: Text(
              book.authors.join('，'),
-              style: const TextStyle(
+              style: TextStyle(
                fontSize: 15,
-                color: Color(0xFF1A1A1A),
+                color: colors.onSurface,
                height: 1.5,
              ),
            ),
@@ -392,29 +360,29 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-  /// 构建ISBN区域
  Widget _buildIsbnSection(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
-          const SizedBox(
+          SizedBox(
            width: 64,
            child: Text(
              'ISBN',
              style: TextStyle(
                fontSize: 13,
-                color: Color(0xFF999999),
+                color: colors.onSurface.withValues(alpha: 0.4),
              ),
            ),
          ),
          Expanded(
            child: Text(
              book.isbn!,
-              style: const TextStyle(
+              style: TextStyle(
                fontSize: 15,
-                color: Color(0xFF1A1A1A),
+                color: colors.onSurface,
                height: 1.5,
              ),
            ),
@@ -424,29 +392,29 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-  /// 构建出版社区域
  Widget _buildPublisherSection(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
-          const SizedBox(
+          SizedBox(
            width: 64,
            child: Text(
              '出版社',
              style: TextStyle(
                fontSize: 13,
-                color: Color(0xFF999999),
+                color: colors.onSurface.withValues(alpha: 0.4),
              ),
            ),
          ),
          Expanded(
            child: Text(
              book.publisher!,
-              style: const TextStyle(
+              style: TextStyle(
                fontSize: 15,
-                color: Color(0xFF1A1A1A),
+                color: colors.onSurface,
                height: 1.5,
              ),
            ),
@@ -456,29 +424,29 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-  /// 构建出版时间区域
  Widget _buildPublishDateSection(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
-          const SizedBox(
+          SizedBox(
            width: 64,
            child: Text(
              '出版时间',
              style: TextStyle(
                fontSize: 13,
-                color: Color(0xFF999999),
+                color: colors.onSurface.withValues(alpha: 0.4),
              ),
            ),
          ),
          Expanded(
            child: Text(
              '${book.publishDate!.year}年${book.publishDate!.month.toString().padLeft(2, '0')}月',
-              style: const TextStyle(
+              style: TextStyle(
                fontSize: 15,
-                color: Color(0xFF1A1A1A),
+                color: colors.onSurface,
                height: 1.5,
              ),
            ),
@@ -488,20 +456,20 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-  /// 构建类型区域
  Widget _buildGenresSection(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
-          const SizedBox(
+          SizedBox(
            width: 64,
            child: Text(
              '类型',
              style: TextStyle(
                fontSize: 13,
-                color: Color(0xFF999999),
+                color: colors.onSurface.withValues(alpha: 0.4),
              ),
            ),
          ),
@@ -513,14 +481,14 @@ class _BookDetailPageState extends State<BookDetailPage> {
                return Container(
                  padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
                  decoration: BoxDecoration(
-                    color: const Color(0xFFF5F5F5),
+                    color: colors.surfaceContainerHighest,
                    borderRadius: BorderRadius.circular(4),
                  ),
                  child: Text(
                    genre,
-                    style: const TextStyle(
+                    style: TextStyle(
                      fontSize: 13,
-                      color: Color(0xFF666666),
+                      color: colors.onSurface.withValues(alpha: 0.6),
                    ),
                  ),
                );
@@ -531,9 +499,9 @@ class _BookDetailPageState extends State<BookDetailPage> {
      ),
    );
  }
-  
-  /// 构建简介区域
+
  Widget _buildSummarySection(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return Padding(
      padding: const EdgeInsets.all(24),
      child: Column(
@@ -545,17 +513,17 @@ class _BookDetailPageState extends State<BookDetailPage> {
                width: 4,
                height: 16,
                decoration: BoxDecoration(
-                  color: const Color(0xFF1A1A1A),
+                  color: colors.onSurface,
                  borderRadius: BorderRadius.circular(2),
                ),
              ),
              const SizedBox(width: 8),
-              const Text(
+              Text(
                '简介',
                style: TextStyle(
                  fontSize: 15,
                  fontWeight: FontWeight.w600,
-                  color: Color(0xFF1A1A1A),
+                  color: colors.onSurface,
                ),
              ),
            ],
@@ -564,14 +532,14 @@ class _BookDetailPageState extends State<BookDetailPage> {
          Container(
            padding: const EdgeInsets.all(20),
            decoration: BoxDecoration(
-              color: const Color(0xFFFAFAFA),
+              color: colors.surfaceContainerHigh,
              borderRadius: BorderRadius.circular(12),
            ),
            child: Text(
              book.summary!,
-              style: const TextStyle(
+              style: TextStyle(
                fontSize: 15,
-                color: Color(0xFF1A1A1A),
+                color: colors.onSurface,
                height: 1.8,
              ),
            ),
@@ -581,8 +549,8 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-  /// 构建额外功能区域（书评、摘抄）
  Widget _buildExtraSections(Book book) {
+    final colors = Theme.of(context).colorScheme;
    return Padding(
      padding: const EdgeInsets.all(24),
      child: Column(
@@ -594,23 +562,22 @@ class _BookDetailPageState extends State<BookDetailPage> {
                width: 4,
                height: 16,
                decoration: BoxDecoration(
-                  color: const Color(0xFF1A1A1A),
+                  color: colors.onSurface,
                  borderRadius: BorderRadius.circular(2),
                ),
              ),
              const SizedBox(width: 8),
-              const Text(
+              Text(
                '更多',
                style: TextStyle(
                  fontSize: 15,
                  fontWeight: FontWeight.w600,
-                  color: Color(0xFF1A1A1A),
+                  color: colors.onSurface,
                ),
              ),
            ],
          ),
          const SizedBox(height: 16),
-          // 书评入口
          _buildExtraSectionItem(
            icon: Icons.rate_review_outlined,
            title: '书评',
@@ -620,7 +587,6 @@ class _BookDetailPageState extends State<BookDetailPage> {
            onTap: () => _navigateToReviews(book),
          ),
          const SizedBox(height: 12),
-          // 摘抄入口
          _buildExtraSectionItem(
            icon: Icons.format_quote_outlined,
            title: '摘抄',
@@ -634,7 +600,6 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-  /// 构建更多区域项
  Widget _buildExtraSectionItem({
    required IconData icon,
    required String title,
@@ -643,14 +608,15 @@ class _BookDetailPageState extends State<BookDetailPage> {
    required String unit,
    required VoidCallback onTap,
  }) {
+    final colors = Theme.of(context).colorScheme;
    return GestureDetector(
      onTap: onTap,
      child: Container(
        padding: const EdgeInsets.all(16),
        decoration: BoxDecoration(
-          color: const Color(0xFFFAFAFA),
+          color: colors.surfaceContainerHigh,
          borderRadius: BorderRadius.circular(10),
-          border: Border.all(color: const Color(0xFFE8E8E8), width: 0.5),
+          border: Border.all(color: colors.outlineVariant, width: 0.5),
        ),
        child: Row(
          children: [
@@ -658,14 +624,14 @@ class _BookDetailPageState extends State<BookDetailPage> {
              width: 40,
              height: 40,
              decoration: BoxDecoration(
-                color: Colors.white,
+                color: colors.surface,
                borderRadius: BorderRadius.circular(8),
-                border: Border.all(color: const Color(0xFFE8E8E8), width: 0.5),
+                border: Border.all(color: colors.outlineVariant, width: 0.5),
              ),
              child: Icon(
                icon,
                size: 20,
-                color: const Color(0xFF666666),
+                color: colors.onSurface.withValues(alpha: 0.6),
              ),
            ),
            const SizedBox(width: 12),
@@ -675,10 +641,10 @@ class _BookDetailPageState extends State<BookDetailPage> {
                children: [
                  Text(
                    title,
-                    style: const TextStyle(
+                    style: TextStyle(
                      fontSize: 15,
                      fontWeight: FontWeight.w600,
-                      color: Color(0xFF1A1A1A),
+                      color: colors.onSurface,
                    ),
                  ),
                  const SizedBox(height: 4),
@@ -688,9 +654,9 @@ class _BookDetailPageState extends State<BookDetailPage> {
                      final count = snapshot.data ?? 0;
                      return Text(
                        count > 0 ? '$count $unit' : emptyText,
-                        style: const TextStyle(
+                        style: TextStyle(
                          fontSize: 13,
-                          color: Color(0xFF999999),
+                          color: colors.onSurface.withValues(alpha: 0.4),
                        ),
                      );
                    },
@@ -698,9 +664,9 @@ class _BookDetailPageState extends State<BookDetailPage> {
                ],
              ),
            ),
-            const Icon(
+            Icon(
              Icons.chevron_right,
-              color: Color(0xFFCCCCCC),
+              color: colors.onSurface.withValues(alpha: 0.25),
            ),
          ],
        ),
@@ -726,39 +692,37 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-
-  /// 格式化日期
  String _formatDate(DateTime date) {
    return '${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')}';
  }
-  
-  /// 跳转到编辑页面
+
  void _navigateToEdit(BuildContext context) {
    Navigator.pushNamed(context, '/book-form', arguments: widget.book).then((_) {
      context.read<AppProvider>().loadBooks();
    });
  }
-  
-  /// 显示删除对话框
+
  void _showDeleteDialog(BuildContext context) {
+    final colors = Theme.of(context).colorScheme;
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
-        backgroundColor: Colors.white,
+        backgroundColor: colors.surface,
        elevation: 0,
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
-        title: const Text(
+        title: Text(
          '确认删除',
          style: TextStyle(
            fontSize: 18,
            fontWeight: FontWeight.w600,
+            color: colors.onSurface,
          ),
        ),
        content: Text(
          '确定要删除"${widget.book.title}"吗？删除后可在回收站恢复。',
-          style: const TextStyle(
+          style: TextStyle(
            fontSize: 14,
-            color: Color(0xFF666666),
+            color: colors.onSurface.withValues(alpha: 0.6),
            height: 1.5,
          ),
        ),
@@ -766,7 +730,7 @@ class _BookDetailPageState extends State<BookDetailPage> {
          TextButton(
            onPressed: () => Navigator.pop(context),
            style: TextButton.styleFrom(
-              foregroundColor: const Color(0xFF666666),
+              foregroundColor: colors.onSurface.withValues(alpha: 0.6),
              padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
            ),
            child: const Text('取消'),
@@ -780,8 +744,8 @@ class _BookDetailPageState extends State<BookDetailPage> {
              ToastUtil.show(context, '已删除');
            },
            style: ElevatedButton.styleFrom(
-              backgroundColor: Colors.red,
-              foregroundColor: Colors.white,
+              backgroundColor: colors.error,
+              foregroundColor: colors.onError,
              elevation: 0,
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.circular(8),
@@ -796,7 +760,6 @@ class _BookDetailPageState extends State<BookDetailPage> {
    );
  }

-  /// 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');
@@ -810,16 +773,13 @@ class _BookDetailPageState extends State<BookDetailPage> {
        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',
@@ -830,7 +790,6 @@ class _BookDetailPageState extends State<BookDetailPage> {
    }
  }

-  /// 显示分享海报页面
  void _showSharePoster(Book book) {
    Navigator.push(
      context,