generated from dellevin/template
725 lines
22 KiB
Dart
725 lines
22 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:image_picker/image_picker.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:path/path.dart' as path;
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import 'package:provider/provider.dart';
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import '../providers/app_provider.dart';
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import '../models/data_models.dart';
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import '../utils/toast_util.dart';
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/// 添加/编辑书籍页面 - 紧凑双行布局设计
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class BookFormPage extends StatefulWidget {
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final Book? book;
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final String? initialStatus; // 添加时的默认状态
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const BookFormPage({super.key, this.book, this.initialStatus});
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@override
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State<BookFormPage> createState() => _BookFormPageState();
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}
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class _BookFormPageState extends State<BookFormPage> {
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final _formKey = GlobalKey<FormState>();
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final ImagePicker _picker = ImagePicker();
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// 输入框控制器
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late TextEditingController _titleController;
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late TextEditingController _publisherController;
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late TextEditingController _summaryController;
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late TextEditingController _ratingController;
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// 多值字段的临时输入控制器
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final Map<String, TextEditingController> _tagControllers = {};
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// 数据
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List<String> _authors = [];
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List<String> _alternateTitles = [];
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List<String> _genres = [];
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String? _coverPath;
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String _status = 'want_to_read';
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@override
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void initState() {
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super.initState();
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_initializeData();
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}
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void _initializeData() {
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// 如果有传入book，尝试从Provider获取最新数据
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Book? book = widget.book;
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if (book != null) {
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final appProvider = context.read<AppProvider>();
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final latestBook = appProvider.books
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.where((b) => b.id == book!.id)
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.firstOrNull;
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if (latestBook != null) {
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book = latestBook;
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}
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}
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_titleController = TextEditingController(text: book?.title ?? '');
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_publisherController = TextEditingController(text: book?.publisher ?? '');
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_summaryController = TextEditingController(text: book?.summary ?? '');
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_ratingController = TextEditingController(text: book?.rating?.toString() ?? '');
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if (book != null) {
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_authors = List.from(book.authors);
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_alternateTitles = List.from(book.alternateTitles);
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_genres = List.from(book.genres);
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_coverPath = book.coverPath;
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_status = book.status;
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} else if (widget.initialStatus != null) {
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// 添加模式：使用传入的默认状态
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_status = widget.initialStatus!;
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}
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}
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@override
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void dispose() {
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_titleController.dispose();
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_publisherController.dispose();
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_summaryController.dispose();
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_ratingController.dispose();
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_tagControllers.values.forEach((c) => c.dispose());
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super.dispose();
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}
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TextEditingController _getTagController(String key) {
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return _tagControllers.putIfAbsent(key, () => TextEditingController());
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}
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@override
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Widget build(BuildContext context) {
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final isEdit = widget.book != null;
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return Scaffold(
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backgroundColor: Colors.white,
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appBar: AppBar(
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title: Text(isEdit ? '编辑书籍' : '添加书籍'),
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actions: [
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TextButton(
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onPressed: _saveBook,
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child: const Text(
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'保存',
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style: TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w500,
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),
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),
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),
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const SizedBox(width: 8),
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],
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),
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body: Form(
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key: _formKey,
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child: ListView(
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padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
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children: [
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// 封面选择 - 居中显示
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Center(child: _buildCoverPicker()),
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const SizedBox(height: 32),
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// 状态选择（靠左显示）
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_buildStatusSelector(),
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const SizedBox(height: 20),
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// 评分 - 星星选择（靠左显示）
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_buildStarRating(),
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const SizedBox(height: 32),
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// 基本信息区域
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_buildFormItem(
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label: '书名 *',
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child: TextFormField(
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controller: _titleController,
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style: const TextStyle(fontSize: 15, color: Color(0xFF1A1A1A)),
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decoration: const InputDecoration(
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hintText: '请输入书名',
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hintStyle: TextStyle(fontSize: 14, color: Color(0xFFCCCCCC)),
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border: InputBorder.none,
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contentPadding: EdgeInsets.zero,
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),
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validator: (value) {
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if (value == null || value.trim().isEmpty) {
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return '请输入书名';
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}
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return null;
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},
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),
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),
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_buildDivider(),
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// 别名
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_buildMultiValueItem(
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label: '别名',
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values: _alternateTitles,
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hint: '输入别名',
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controllerKey: 'alternateTitles',
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onAdd: (v) => setState(() => _alternateTitles.add(v)),
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onRemove: (i) => setState(() => _alternateTitles.removeAt(i)),
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),
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_buildDivider(),
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// 作者
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_buildMultiValueItem(
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label: '作者',
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values: _authors,
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hint: '输入作者姓名',
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controllerKey: 'authors',
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onAdd: (v) => setState(() => _authors.add(v)),
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onRemove: (i) => setState(() => _authors.removeAt(i)),
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),
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_buildDivider(),
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// 出版社
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_buildFormItem(
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label: '出版社',
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child: TextFormField(
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controller: _publisherController,
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style: const TextStyle(fontSize: 15, color: Color(0xFF1A1A1A)),
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decoration: const InputDecoration(
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hintText: '请输入出版社',
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hintStyle: TextStyle(fontSize: 14, color: Color(0xFFCCCCCC)),
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border: InputBorder.none,
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contentPadding: EdgeInsets.zero,
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),
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),
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),
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_buildDivider(),
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// 类型
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_buildMultiValueItem(
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label: '类型',
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values: _genres,
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hint: '如：小说、历史',
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controllerKey: 'genres',
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onAdd: (v) => setState(() => _genres.add(v)),
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onRemove: (i) => setState(() => _genres.removeAt(i)),
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),
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_buildDivider(),
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// 书籍简介
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_buildFormItem(
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label: '书籍简介',
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child: TextFormField(
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controller: _summaryController,
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maxLines: 4,
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style: const TextStyle(fontSize: 15, color: Color(0xFF1A1A1A), height: 1.5),
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decoration: const InputDecoration(
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hintText: '写下书籍简介...',
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hintStyle: TextStyle(fontSize: 14, color: Color(0xFFCCCCCC)),
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border: InputBorder.none,
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contentPadding: EdgeInsets.zero,
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),
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),
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),
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const SizedBox(height: 48),
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],
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),
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),
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);
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}
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/// 构建表单条目（标签 + 内容）
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Widget _buildFormItem({required String label, required Widget child}) {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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label,
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style: TextStyle(
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fontSize: 13,
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color: label.contains('*') ? const Color(0xFF1A1A1A) : const Color(0xFF666666),
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fontWeight: label.contains('*') ? FontWeight.w500 : FontWeight.normal,
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),
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),
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const SizedBox(height: 8),
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child,
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],
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);
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}
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/// 构建多值条目
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Widget _buildMultiValueItem({
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required String label,
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required List<String> values,
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required String hint,
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required String controllerKey,
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required Function(String) onAdd,
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required Function(int) onRemove,
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}) {
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final controller = _getTagController(controllerKey);
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// 第一行：标签 + 添加按钮
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Row(
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children: [
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Text(
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label,
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style: const TextStyle(fontSize: 13, color: Color(0xFF666666)),
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),
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const Spacer(),
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// 添加按钮（当输入框有内容时显示）
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ValueListenableBuilder<TextEditingValue>(
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valueListenable: controller,
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builder: (context, value, child) {
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final hasText = value.text.trim().isNotEmpty;
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return GestureDetector(
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onTap: hasText
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? () {
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final text = controller.text.trim();
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if (text.isNotEmpty && !values.contains(text)) {
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onAdd(text);
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controller.clear();
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}
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}
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: null,
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
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decoration: BoxDecoration(
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border: Border.all(
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color: hasText ? const Color(0xFF1A1A1A) : const Color(0xFFE5E5E5),
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),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(
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Icons.add,
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size: 14,
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color: hasText ? const Color(0xFF1A1A1A) : const Color(0xFFCCCCCC),
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),
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const SizedBox(width: 2),
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Text(
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'添加',
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style: TextStyle(
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fontSize: 12,
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color: hasText ? const Color(0xFF1A1A1A) : const Color(0xFFCCCCCC),
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),
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),
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],
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),
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),
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);
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},
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),
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],
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),
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const SizedBox(height: 8),
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// 第二行：已选标签 + 输入框
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Wrap(
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spacing: 8,
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runSpacing: 8,
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crossAxisAlignment: WrapCrossAlignment.center,
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children: [
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...values.asMap().entries.map((entry) {
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 5),
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decoration: BoxDecoration(
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color: const Color(0xFFF5F5F5),
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border: Border.all(color: const Color(0xFFE5E5E5)),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text(
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entry.value,
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style: const TextStyle(fontSize: 14, color: Color(0xFF1A1A1A)),
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),
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const SizedBox(width: 4),
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GestureDetector(
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onTap: () => onRemove(entry.key),
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child: const Icon(Icons.close, size: 14, color: Color(0xFF999999)),
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),
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],
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),
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);
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}),
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// 输入框
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ConstrainedBox(
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constraints: const BoxConstraints(minWidth: 100, maxWidth: 150),
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child: TextField(
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controller: controller,
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style: const TextStyle(fontSize: 14, color: Color(0xFF1A1A1A)),
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decoration: InputDecoration(
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hintText: values.isEmpty ? hint : '',
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hintStyle: const TextStyle(fontSize: 14, color: Color(0xFFCCCCCC)),
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border: InputBorder.none,
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isDense: true,
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contentPadding: const EdgeInsets.symmetric(vertical: 5),
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),
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onSubmitted: (value) {
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final trimmed = value.trim();
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if (trimmed.isNotEmpty && !values.contains(trimmed)) {
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onAdd(trimmed);
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controller.clear();
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}
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},
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),
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),
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],
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),
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],
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);
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}
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/// 构建分隔线
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Widget _buildDivider() {
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return Container(
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margin: const EdgeInsets.symmetric(vertical: 16),
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height: 0.5,
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color: const Color(0xFFE5E5E5),
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);
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}
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/// 构建状态选择器（靠左显示，带标签）
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Widget _buildStatusSelector() {
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return Row(
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children: [
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const Text(
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'状态',
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style: TextStyle(fontSize: 14, color: Color(0xFF666666)),
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),
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const SizedBox(width: 16),
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Container(
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padding: const EdgeInsets.all(4),
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decoration: BoxDecoration(
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color: const Color(0xFFF5F5F5),
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borderRadius: BorderRadius.circular(8),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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_buildStatusOption('想读', 'want_to_read'),
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_buildStatusOption('在读', 'reading'),
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_buildStatusOption('已读', 'read'),
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],
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),
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),
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],
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);
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}
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/// 构建星星评分（5星制，每星2分，支持手动输入）
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Widget _buildStarRating() {
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return Row(
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children: [
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const Text(
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'评分',
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style: TextStyle(fontSize: 14, color: Color(0xFF666666)),
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),
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const SizedBox(width: 16),
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// 星星选择
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_buildStarSelector(),
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const SizedBox(width: 12),
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// 手动输入框
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_buildRatingInputField(),
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],
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);
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}
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/// 构建星星选择器
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Widget _buildStarSelector() {
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final currentRating = double.tryParse(_ratingController.text) ?? 0;
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final starRating = currentRating / 2;
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return Container(
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padding: const EdgeInsets.symmetric(vertical: 8),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: List.generate(5, (index) {
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final starValue = index + 1;
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final scoreValue = starValue * 2;
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final isFilled = starValue <= starRating;
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final isHalf = starValue == starRating.ceil() && starRating % 1 != 0;
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return InkWell(
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onTap: () {
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setState(() {
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_ratingController.text = scoreValue.toString();
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});
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},
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borderRadius: BorderRadius.circular(4),
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 2, vertical: 4),
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child: Icon(
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isHalf
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? Icons.star_half
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: isFilled
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? Icons.star
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: Icons.star_border,
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size: 24,
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color: isFilled || isHalf
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? const Color(0xFFFFB800)
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: const Color(0xFFE5E5E5),
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),
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),
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);
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}),
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),
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);
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}
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/// 构建评分输入框
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Widget _buildRatingInputField() {
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return Container(
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width: 56,
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height: 36,
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decoration: BoxDecoration(
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color: const Color(0xFFF5F5F5),
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borderRadius: BorderRadius.circular(8),
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),
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child: TextFormField(
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controller: _ratingController,
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keyboardType: const TextInputType.numberWithOptions(decimal: true),
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textAlign: TextAlign.center,
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style: const TextStyle(
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fontSize: 15,
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fontWeight: FontWeight.w500,
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color: Color(0xFF1A1A1A),
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),
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decoration: const InputDecoration(
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hintText: '-',
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hintStyle: TextStyle(fontSize: 15, color: Color(0xFFCCCCCC)),
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border: InputBorder.none,
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contentPadding: EdgeInsets.symmetric(horizontal: 8, vertical: 8),
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),
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validator: (value) {
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if (value != null && value.isNotEmpty) {
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final rating = double.tryParse(value);
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if (rating == null || rating < 0 || rating > 10) {
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return '0-10';
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}
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}
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return null;
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},
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onChanged: (value) {
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// 限制输入范围
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if (value.isNotEmpty) {
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final rating = double.tryParse(value);
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if (rating != null) {
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if (rating > 10) {
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_ratingController.text = '10';
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} else if (rating < 0) {
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_ratingController.text = '0';
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}
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}
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}
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setState(() {}); // 更新星星显示
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},
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),
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);
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}
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/// 构建状态选项
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Widget _buildStatusOption(String label, String value) {
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final isSelected = _status == value;
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return GestureDetector(
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onTap: () => setState(() => _status = value),
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child: AnimatedContainer(
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duration: const Duration(milliseconds: 200),
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padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 8),
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decoration: BoxDecoration(
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color: isSelected ? Colors.white : Colors.transparent,
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borderRadius: BorderRadius.circular(6),
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boxShadow: isSelected
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? [
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BoxShadow(
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color: Colors.black.withOpacity(0.05),
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blurRadius: 4,
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offset: const Offset(0, 2),
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),
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]
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: null,
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),
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child: Text(
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label,
|
||
style: TextStyle(
|
||
fontSize: 14,
|
||
fontWeight: isSelected ? FontWeight.w500 : FontWeight.normal,
|
||
color: isSelected ? const Color(0xFF1A1A1A) : const Color(0xFF999999),
|
||
),
|
||
),
|
||
),
|
||
);
|
||
}
|
||
|
||
/// 构建封面选择器
|
||
Widget _buildCoverPicker() {
|
||
final hasCover = _coverPath != null && _coverPath!.isNotEmpty;
|
||
|
||
return Column(
|
||
children: [
|
||
GestureDetector(
|
||
onTap: _pickCover,
|
||
child: Container(
|
||
width: 140,
|
||
height: 200,
|
||
decoration: BoxDecoration(
|
||
color: const Color(0xFFF5F5F5),
|
||
border: Border.all(color: const Color(0xFFE5E5E5), width: 0.5),
|
||
),
|
||
child: hasCover
|
||
? Image.file(
|
||
File(_coverPath!),
|
||
fit: BoxFit.cover,
|
||
errorBuilder: (_, __, ___) => _buildCoverPlaceholder(),
|
||
)
|
||
: _buildCoverPlaceholder(),
|
||
),
|
||
),
|
||
// 清空封面按钮（仅当有封面时显示）
|
||
if (hasCover)
|
||
Padding(
|
||
padding: const EdgeInsets.only(top: 12),
|
||
child: GestureDetector(
|
||
onTap: () => setState(() => _coverPath = null),
|
||
child: Container(
|
||
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
|
||
decoration: BoxDecoration(
|
||
border: Border.all(color: const Color(0xFFE5E5E5)),
|
||
),
|
||
child: const Row(
|
||
mainAxisSize: MainAxisSize.min,
|
||
children: [
|
||
Icon(
|
||
Icons.hide_image_outlined,
|
||
size: 16,
|
||
color: Color(0xFF666666),
|
||
),
|
||
SizedBox(width: 4),
|
||
Text(
|
||
'清空封面',
|
||
style: TextStyle(
|
||
fontSize: 13,
|
||
color: Color(0xFF666666),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
),
|
||
),
|
||
],
|
||
);
|
||
}
|
||
|
||
Widget _buildCoverPlaceholder() {
|
||
return const Column(
|
||
mainAxisAlignment: MainAxisAlignment.center,
|
||
children: [
|
||
Icon(
|
||
Icons.add_photo_alternate_outlined,
|
||
size: 40,
|
||
color: Color(0xFF999999),
|
||
),
|
||
SizedBox(height: 12),
|
||
Text(
|
||
'点击添加封面',
|
||
style: TextStyle(
|
||
fontSize: 14,
|
||
color: Color(0xFF999999),
|
||
),
|
||
),
|
||
],
|
||
);
|
||
}
|
||
|
||
/// 选择封面
|
||
Future<void> _pickCover() async {
|
||
try {
|
||
final XFile? pickedFile = await _picker.pickImage(
|
||
source: ImageSource.gallery,
|
||
maxWidth: 800,
|
||
maxHeight: 1200,
|
||
imageQuality: 85,
|
||
);
|
||
|
||
if (pickedFile != null) {
|
||
final appDir = await getApplicationDocumentsDirectory();
|
||
final fileName = 'book_cover_${DateTime.now().millisecondsSinceEpoch}.jpg';
|
||
final savedPath = path.join(appDir.path, 'book_covers', fileName);
|
||
|
||
final coverDir = Directory(path.join(appDir.path, 'book_covers'));
|
||
if (!await coverDir.exists()) {
|
||
await coverDir.create(recursive: true);
|
||
}
|
||
|
||
await File(pickedFile.path).copy(savedPath);
|
||
|
||
setState(() => _coverPath = savedPath);
|
||
}
|
||
} catch (e) {
|
||
if (mounted) {
|
||
ToastUtil.show(context, '选择封面失败: $e');
|
||
}
|
||
}
|
||
}
|
||
|
||
/// 保存书籍
|
||
Future<void> _saveBook() async {
|
||
if (!_formKey.currentState!.validate()) {
|
||
return;
|
||
}
|
||
|
||
final rating = _ratingController.text.isNotEmpty
|
||
? double.tryParse(_ratingController.text)
|
||
: null;
|
||
|
||
final now = DateTime.now();
|
||
|
||
if (widget.book == null) {
|
||
final newBook = Book(
|
||
id: now.millisecondsSinceEpoch.toString(),
|
||
title: _titleController.text.trim(),
|
||
coverPath: _coverPath,
|
||
authors: _authors,
|
||
alternateTitles: _alternateTitles,
|
||
publisher: _publisherController.text.trim(),
|
||
genres: _genres,
|
||
summary: _summaryController.text.trim(),
|
||
rating: rating,
|
||
status: _status,
|
||
createdAt: now,
|
||
updatedAt: now,
|
||
);
|
||
|
||
await context.read<AppProvider>().addBook(newBook);
|
||
} else {
|
||
final updatedBook = widget.book!.copyWith(
|
||
title: _titleController.text.trim(),
|
||
coverPath: _coverPath,
|
||
authors: _authors,
|
||
alternateTitles: _alternateTitles,
|
||
publisher: _publisherController.text.trim(),
|
||
genres: _genres,
|
||
summary: _summaryController.text.trim(),
|
||
rating: rating,
|
||
status: _status,
|
||
updatedAt: now,
|
||
);
|
||
|
||
await context.read<AppProvider>().updateBook(updatedBook);
|
||
}
|
||
|
||
if (!mounted) return;
|
||
|
||
ToastUtil.show(context, widget.book == null ? '添加成功' : '更新成功');
|
||
|
||
Navigator.pop(context);
|
||
}
|
||
}
|