动画效果美化

lib/pages/book/book_tab_page.dart

@@ -1,22 +1,39 @@
+import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../../providers/app_provider.dart';
-import '../../models/data_models.dart';
+import '../../utils/user_prefs.dart';
 import '../../widgets/book_status_bar.dart';
 import '../../widgets/book_list_item.dart';
+import '../../widgets/animated_star_rating.dart';
+import '../../widgets/shimmer_skeleton.dart';
 
 /// 阅读标签页
-class BookTabPage extends StatelessWidget {
+class BookTabPage extends StatefulWidget {
   const BookTabPage({super.key});
 
+  @override
+  State<BookTabPage> createState() => _BookTabPageState();
+}
+
+class _BookTabPageState extends State<BookTabPage> {
+  int _layoutStyle = 0; // 0: 封面网格, 1: 列表
+  bool _firstLoad = true;
+
+  @override
+  void initState() {
+    super.initState();
+    _layoutStyle = UserPrefs().bookLayoutStyle;
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mounted) setState(() => _firstLoad = false);
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     return Column(
       children: [
-        // 状态选择栏（读完、在读、准备读）
         const BookStatusBar(),
-        
-        // 书籍列表
         Expanded(
           child: _buildBookList(context),
         ),
@@ -24,173 +41,181 @@ class BookTabPage extends StatelessWidget {
     );
   }
 
-  /// 构建书籍列表
   Widget _buildBookList(BuildContext context) {
     return Consumer<AppProvider>(
       builder: (context, provider, child) {
-        // 根据状态筛选书籍
-        final statusMap = {
-          0: 'read',
-          1: 'reading',
-          2: 'want_to_read',
-        };
+        final statusMap = {0: 'read', 1: 'reading', 2: 'want_to_read'};
         final currentStatus = statusMap[provider.bookStatusIndex]!;
         final books = provider.getBooksByStatus(currentStatus);
-        
+
+        if (_firstLoad) {
+          return _buildSkeleton();
+        }
+
         if (books.isEmpty) {
           return _buildEmptyState(context, provider.bookStatusIndex);
         }
-        
-        return RefreshIndicator(
-          onRefresh: () async => await provider.loadBooks(),
-          color: const Color(0xFF1A1A1A),
-          backgroundColor: Colors.white,
-          child: GridView.builder(
-            padding: const EdgeInsets.fromLTRB(16, 16, 16, 100),
-            gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
-              crossAxisCount: 3,
-              childAspectRatio: 0.55,
-              crossAxisSpacing: 12,
-              mainAxisSpacing: 16,
-            ),
-            itemCount: books.length,
-            itemBuilder: (context, index) {
-              return BookListItem(book: books[index]);
-            },
-          ),
-        );
+
+        if (_layoutStyle == 1) {
+          return _buildListView(books, provider);
+        }
+        return _buildGridView(books, provider);
       },
     );
   }
 
-  /// 构建空状态提示
+  Widget _buildGridView(List books, AppProvider provider) {
+    return RefreshIndicator(
+      onRefresh: () async => await provider.loadBooks(),
+      color: const Color(0xFF1A1A1A),
+      backgroundColor: Colors.white,
+      child: GridView.builder(
+        padding: const EdgeInsets.fromLTRB(16, 16, 16, 100),
+        gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
+          crossAxisCount: 3,
+          childAspectRatio: 0.55,
+          crossAxisSpacing: 12,
+          mainAxisSpacing: 16,
+        ),
+        itemCount: books.length,
+        itemBuilder: (context, index) => BookListItem(book: books[index]),
+      ),
+    );
+  }
+
+  Widget _buildListView(List books, AppProvider provider) {
+    return RefreshIndicator(
+      onRefresh: () async => await provider.loadBooks(),
+      color: const Color(0xFF1A1A1A),
+      backgroundColor: Colors.white,
+      child: ListView.builder(
+        padding: const EdgeInsets.fromLTRB(12, 8, 12, 100),
+        itemCount: books.length,
+        itemBuilder: (context, index) => _buildListCard(books[index]),
+      ),
+    );
+  }
+
+  Widget _buildListCard(book) {
+    return GestureDetector(
+      onTap: () => Navigator.pushNamed(context, '/book-detail', arguments: book),
+      onLongPress: () => _showDeleteDialog(context, book),
+      child: Container(
+        margin: const EdgeInsets.only(bottom: 8),
+        padding: const EdgeInsets.all(12),
+        decoration: BoxDecoration(
+          color: const Color(0xFFFAFAFA),
+          borderRadius: BorderRadius.circular(12),
+        ),
+        child: Row(
+          children: [
+            // 封面缩略图
+            Container(
+              width: 48, height: 64,
+              decoration: BoxDecoration(
+                color: const Color(0xFFF0F0F0),
+                borderRadius: BorderRadius.circular(6),
+              ),
+              clipBehavior: Clip.antiAlias,
+              child: book.coverPath != null && book.coverPath!.isNotEmpty
+                  ? Image.file(File(book.coverPath!), fit: BoxFit.cover,
+                      errorBuilder: (_, __, ___) => const Icon(Icons.menu_book_outlined, size: 22, color: Color(0xFFCCCCCC)))
+                  : const Icon(Icons.menu_book_outlined, size: 22, color: Color(0xFFCCCCCC)),
+            ),
+            const SizedBox(width: 12),
+            Expanded(
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(book.title, maxLines: 1, overflow: TextOverflow.ellipsis,
+                      style: const TextStyle(fontSize: 15, fontWeight: FontWeight.w600, color: Color(0xFF1A1A1A))),
+                  if (book.authors.isNotEmpty) ...[
+                    const SizedBox(height: 3),
+                    Text(book.authors.take(2).join('、'), maxLines: 1, overflow: TextOverflow.ellipsis,
+                        style: const TextStyle(fontSize: 12, color: Color(0xFFAAAAAA))),
+                  ],
+                  const SizedBox(height: 6),
+                  if (book.rating != null)
+                    AnimatedStarRating(rating: book.rating!, starSize: 12, showNumber: true)
+                  else
+                    const SizedBox(height: 14),
+                ],
+              ),
+            ),
+            const SizedBox(width: 8),
+            const Icon(Icons.chevron_right, color: Color(0xFFD0D0D0), size: 20),
+          ],
+        ),
+      ),
+    );
+  }
+
+  void _showDeleteDialog(BuildContext context, book) {
+    showDialog(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        backgroundColor: Colors.white,
+        elevation: 0,
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+        title: const Text('确认删除', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
+        content: Text('确定要删除《${book.title}》吗？删除后可在回收站恢复。',
+            style: const TextStyle(fontSize: 14, color: Color(0xFF666666), height: 1.5)),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(ctx),
+            child: const Text('取消', style: TextStyle(color: Color(0xFF666666))),
+          ),
+          ElevatedButton(
+            onPressed: () async {
+              await context.read<AppProvider>().removeBook(book.id);
+              Navigator.pop(ctx);
+            },
+            style: ElevatedButton.styleFrom(
+              backgroundColor: Colors.red, foregroundColor: Colors.white, elevation: 0,
+              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
+              padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+            ),
+            child: const Text('删除'),
+          ),
+        ],
+        actionsPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+      ),
+    );
+  }
+
+  Widget _buildSkeleton() {
+    return _layoutStyle == 1
+        ? MovieSkeletonGrid() // reuse same grid skeleton pattern
+        : const BookSkeletonGrid();
+  }
+
   Widget _buildEmptyState(BuildContext context, int statusIndex) {
     final statusText = ['已读', '在读', '想读'][statusIndex];
-    
     return Center(
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
           Container(
-            width: 80,
-            height: 80,
-            decoration: BoxDecoration(
-              color: const Color(0xFFF5F5F5),
-              borderRadius: BorderRadius.circular(20),
-            ),
-            child: const Icon(
-              Icons.menu_book_outlined,
-              size: 40,
-              color: Color(0xFFCCCCCC),
-            ),
+            width: 80, height: 80,
+            decoration: BoxDecoration(color: const Color(0xFFF5F5F5), borderRadius: BorderRadius.circular(20)),
+            child: const Icon(Icons.menu_book_outlined, size: 40, color: Color(0xFFCCCCCC)),
           ),
           const SizedBox(height: 20),
-          Text(
-            '暂无$statusText的书籍',
-            style: const TextStyle(
-              fontSize: 16,
-              color: Color(0xFF999999),
-            ),
-          ),
+          Text('暂无$statusText的书籍', style: const TextStyle(fontSize: 16, color: Color(0xFF999999))),
           const SizedBox(height: 24),
           InkWell(
             onTap: () {
-              final statusMap = {
-                0: 'read',
-                1: 'reading',
-                2: 'want_to_read',
-              };
-              final currentStatus = statusMap[statusIndex]!;
-              Navigator.pushNamed(
-                context,
-                '/book-form',
-                arguments: {'initialStatus': currentStatus},
-              );
+              final statusMap = {0: 'read', 1: 'reading', 2: 'want_to_read'};
+              Navigator.pushNamed(context, '/book-form', arguments: {'initialStatus': statusMap[statusIndex]!});
             },
             child: Container(
               padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
-              decoration: BoxDecoration(
-                color: const Color(0xFF1A1A1A),
-                borderRadius: BorderRadius.circular(8),
-              ),
-              child: const Text(
-                '添加记录',
-                style: TextStyle(
-                  fontSize: 14,
-                  fontWeight: FontWeight.w500,
-                  color: Colors.white,
-                ),
-              ),
+              decoration: BoxDecoration(color: const Color(0xFF1A1A1A), borderRadius: BorderRadius.circular(8)),
+              child: const Text('添加记录', style: TextStyle(fontSize: 14, fontWeight: FontWeight.w500, color: Colors.white)),
             ),
           ),
         ],
       ),
     );
   }
-
-  /// 获取示例书籍数据
-  List<Book> _getSampleBooks(int statusIndex) {
-    final statusMap = ['read', 'reading', 'want_to_read'];
-    final currentStatus = statusMap[statusIndex];
-    final now = DateTime.now();
-    
-    // 示例数据（实际应从数据库获取）
-    final allBooks = [
-      Book(
-        id: '1',
-        title: '活着',
-        authors: ['余华'],
-        rating: 9.2,
-        status: 'read',
-        genres: ['小说', '文学'],
-        summary: '非常感人的故事，让人思考生命的意义',
-        createdAt: now,
-        updatedAt: now,
-      ),
-      Book(
-        id: '2',
-        title: '百年孤独',
-        authors: ['加西亚·马尔克斯'],
-        rating: 9.3,
-        status: 'read',
-        genres: ['小说', '魔幻现实主义'],
-        publisher: '南海出版公司',
-        createdAt: now,
-        updatedAt: now,
-      ),
-      Book(
-        id: '3',
-        title: '人类简史',
-        authors: ['尤瓦尔·赫拉利'],
-        rating: 9.0,
-        status: 'reading',
-        genres: ['历史', '科普'],
-        createdAt: now,
-        updatedAt: now,
-      ),
-      Book(
-        id: '4',
-        title: '三体',
-        authors: ['刘慈欣'],
-        rating: 9.5,
-        status: 'want_to_read',
-        genres: ['科幻', '小说'],
-        createdAt: now,
-        updatedAt: now,
-      ),
-      Book(
-        id: '5',
-        title: '追风筝的人',
-        authors: ['卡勒德·胡赛尼'],
-        rating: 8.9,
-        status: 'read',
-        genres: ['小说', '文学'],
-        summary: '关于救赎与成长的故事',
-        createdAt: now,
-        updatedAt: now,
-      ),
-    ];
-    
-    return allBooks.where((b) => b.status == currentStatus).toList();
-  }
 }