323 lines
8.8 KiB
Dart
323 lines
8.8 KiB
Dart
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import 'package:flutter/material.dart';
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import 'dart:convert';
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import 'package:path_provider/path_provider.dart';
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import 'package:intl/intl.dart';
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import 'package:dio/dio.dart';
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import 'package:qhd_prevention/pages/home/work/read_file_page.dart';
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import 'package:qhd_prevention/pages/home/work/risk_list_picker.dart';
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import 'package:qhd_prevention/pages/http/ApiService.dart';
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import 'package:qhd_prevention/pages/my_appbar.dart';
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import '../../../customWidget/search_bar_widget.dart';
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import '../../../tools/tools.dart';
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import 'laws_list_picker.dart';
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import 'package:url_launcher/url_launcher.dart';
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class LawsRegulationsTwoPage extends StatefulWidget {
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const LawsRegulationsTwoPage(this.id, {super.key});
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final String id;
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@override
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State<LawsRegulationsTwoPage> createState() => _LawsRegulationsTwoPage();
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}
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class _LawsRegulationsTwoPage extends State<LawsRegulationsTwoPage> {
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final TextEditingController _searchController = TextEditingController();
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List<dynamic> _fileList = [];
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@override
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void initState() {
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super.initState();
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_getLowListByParentId();
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}
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Future<void> _getLowListByParentId() async {
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try {
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_fileList.clear();
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final result = await ApiService.getLowListByParentId(widget.id);
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if (result['result'] == 'success') {
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final List<dynamic> newList = result['varList'] ?? [];
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setState(() {
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_fileList.addAll(newList);
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});
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} else {
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_showMessage('加载数据失败');
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}
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} catch (e) {
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// 出错时可以 Toast 或者在页面上显示错误状态
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print('加载数据失败：$e');
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}
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}
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Future<void> _downloadFile(String filePath) async {
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//下载
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try {
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final Uri url = Uri.parse(ApiService.baseImgPath + filePath);
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if (!await launchUrl(url,mode:LaunchMode.externalApplication)) {
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throw Exception('Could not launch $url');
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}
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} catch (e) {
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print(e.toString());
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}
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}
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Future<void> _showFile(dynamic file) async {
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//预览
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try {
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final url =ApiService.baseImgPath + file["FILEPATH"];
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pushPage(
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ReadFilePage(
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fileUrl: url,
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),
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context,
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);
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} catch (e) {
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print(e.toString());
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}
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}
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String _formatDate(String dateString) {
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try {
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final date = DateTime.parse(dateString);
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return DateFormat('yyyy-MM-dd HH:mm:ss').format(date);
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} catch (e) {
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return dateString;
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}
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}
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String _getFileType(String extension) {
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switch (extension) {
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case '.docx':
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case '.doc':
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return '文件属性：文档';
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case '.xls':
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case '.xlsx':
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return '文件属性：表格';
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case '.ppt':
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case '.pptx':
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return '文件属性：幻灯片';
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case '.pdf':
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return '文件属性：PDF';
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default:
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return '文件属性：';
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: MyAppbar(title: "法律法规"),
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body: Column(
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children: [
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// 搜索栏
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// Container(
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// color: Colors.white,
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// child:Padding(
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// padding: EdgeInsets.all(10),
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// child: SearchBarWidget(
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// controller: _searchController,
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// onSearch: (keyboard) {
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// // 输入请求接口
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// _getLowListByParentId();
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// },
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// ),
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// ),
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// ),
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Expanded(child: _buildContent()),
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],
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),
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);
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}
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Widget _buildContent() {
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if (_fileList.isNotEmpty) {
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return ListView.builder(
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itemCount: _fileList.length,
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itemBuilder:
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(context, index) => FileCard(
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file: _fileList[index],
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onDownload: _downloadFile,
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onPreview: _showFile,
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formatDate: _formatDate,
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getFileType: _getFileType,
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),
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);
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} else {
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return const Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(Icons.folder_open, size: 64, color: Colors.grey),
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SizedBox(height: 16),
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Text('暂无数据', style: TextStyle(fontSize: 18, color: Colors.grey)),
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],
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),
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);
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}
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}
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void _showMessage(String msg) {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(msg)));
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}
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}
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class CustomCollapse extends StatefulWidget {
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final dynamic item;
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final Function(String) onTap;
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const CustomCollapse({super.key, required this.item, required this.onTap});
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@override
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State<CustomCollapse> createState() => _CustomCollapseState();
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}
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class _CustomCollapseState extends State<CustomCollapse> {
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bool _isExpanded = false;
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@override
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Widget build(BuildContext context) {
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final hasChildren =
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widget.item['children'] != null &&
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(widget.item['children'] as List).isNotEmpty;
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return Card(
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margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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child: Column(
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children: [
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ListTile(
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title: Text(
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widget.item['name'] ?? '未命名',
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style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 16),
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),
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trailing:
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hasChildren
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? Icon(
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_isExpanded ? Icons.expand_less : Icons.expand_more,
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color: Colors.blue,
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)
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: null,
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onTap:
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hasChildren
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? () => setState(() => _isExpanded = !_isExpanded)
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: () => widget.onTap(widget.item['id'] ?? ''),
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),
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if (_isExpanded && hasChildren)
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...(widget.item['children'] as List).map<Widget>((child) {
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return Padding(
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padding: const EdgeInsets.only(left: 16.0),
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child: ListTile(
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title: Text(child['name']),
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leading: const Icon(Icons.description, color: Colors.blue),
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onTap: () => widget.onTap(child['id'] ?? ''),
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),
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);
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}).toList(),
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],
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),
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);
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}
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}
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class FileCard extends StatelessWidget {
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final dynamic file;
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final Function(String) onDownload;
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final Function(dynamic) onPreview;
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final String Function(String) formatDate;
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final String Function(String) getFileType;
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const FileCard({
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super.key,
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required this.file,
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required this.onDownload,
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required this.onPreview,
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required this.formatDate,
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required this.getFileType,
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});
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@override
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Widget build(BuildContext context) {
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return Card(
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margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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child: Padding(
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padding: const EdgeInsets.all(12.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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file['NAME'] ?? '未命名文件',
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style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
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),
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const SizedBox(height: 10),
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Text(
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getFileType(file['extension_name'] ?? ''),
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style: TextStyle(color: Colors.grey[600]),
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),
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const SizedBox(height: 5),
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Text(
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'上传日期：${formatDate(file['CTIME'] ?? '')}',
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style: TextStyle(color: Colors.grey[600]),
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),
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const SizedBox(height: 15),
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Row(
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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OutlinedButton.icon(
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icon: const Icon(Icons.download, size: 18),
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label: const Text('下载'),
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onPressed: () => onDownload(file['FILEPATH'] ?? ''),
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style: OutlinedButton.styleFrom(
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foregroundColor: Colors.blue,
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side: const BorderSide(color: Colors.blue),
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),
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),
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const SizedBox(width: 10),
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ElevatedButton.icon(
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icon: const Icon(Icons.visibility, size: 18),
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label: const Text('预览'),
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onPressed: () => onPreview(file),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.cyan,
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foregroundColor: Colors.white,
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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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//详情页
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class StudyDetailPage extends StatelessWidget {
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final String parentId;
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const StudyDetailPage({super.key, required this.parentId});
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(title: const Text('详情页面')),
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body: Center(child: Text('父级ID: $parentId')),
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);
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}
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}
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