127 lines
3.6 KiB
Dart
127 lines
3.6 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:pad_scanner/services/api_service.dart';
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class SettingsPage extends StatefulWidget {
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const SettingsPage({super.key});
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@override
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State<SettingsPage> createState() => _SettingsPageState();
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}
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class _SettingsPageState extends State<SettingsPage> {
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final _controller = TextEditingController();
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final _apiService = ApiService();
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bool _saving = false;
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bool _testing = false;
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@override
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void initState() {
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super.initState();
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_loadUrl();
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}
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Future<void> _loadUrl() async {
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final prefs = await SharedPreferences.getInstance();
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final url = prefs.getString('api_url') ?? '';
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_controller.text = url;
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}
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Future<void> _saveUrl() async {
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final url = _controller.text.trim();
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if (url.isEmpty) {
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_showSnackBar('请输入 API 地址', isError: true);
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return;
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}
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setState(() => _saving = true);
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final prefs = await SharedPreferences.getInstance();
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await prefs.setString('api_url', url);
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setState(() => _saving = false);
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if (mounted) {
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_showSnackBar('设置已保存');
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}
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}
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Future<void> _testConnection() async {
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final url = _controller.text.trim();
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if (url.isEmpty) {
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_showSnackBar('请先输入 API 地址', isError: true);
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return;
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}
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setState(() => _testing = true);
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final ok = await _apiService.testConnection(url);
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setState(() => _testing = false);
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if (mounted) {
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_showSnackBar(
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ok ? '连接成功' : '连接失败，请检查地址和网络',
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isError: !ok,
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);
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}
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}
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void _showSnackBar(String message, {bool isError = false}) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(message),
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backgroundColor: isError ? Colors.red.shade700 : Colors.green.shade700,
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duration: const Duration(seconds: 2),
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),
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);
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}
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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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: AppBar(title: const Text('设置')),
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body: Padding(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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const Text('API 服务器地址', style: TextStyle(fontSize: 14)),
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const SizedBox(height: 8),
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TextField(
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controller: _controller,
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decoration: const InputDecoration(
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hintText: 'http://192.168.1.100:8000',
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border: OutlineInputBorder(),
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),
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keyboardType: TextInputType.url,
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),
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const SizedBox(height: 20),
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ElevatedButton.icon(
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onPressed: _saving ? null : _saveUrl,
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icon: _saving
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? const SizedBox(
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width: 18,
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height: 18,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: const Icon(Icons.save),
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label: const Text('保存设置'),
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),
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const SizedBox(height: 8),
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OutlinedButton.icon(
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onPressed: _testing ? null : _testConnection,
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icon: _testing
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? const SizedBox(
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width: 18,
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height: 18,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: const Icon(Icons.wifi),
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label: const Text('测试连接'),
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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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