leon
86e268ae1c
问题: extractFaceFeature 返回错误码 81929 (MERR_FSDK_FACEFEATURE_FACEDATA) 根本原因: detectFaces 返回的人脸信息缺少 faceData 字段， 而虹软 SDK 的 extractFaceFeature 必须要有这个字段才能提取特征 修复: - FaceEngineManager.convertFaceInfoToList: 添加返回 faceData - ArcPlugin.handleExtractFaceFeature: 接收并传递 faceData 参数 - Dart API: extractFaceFeature 添加 faceData 参数 - example: 传递 faceData 到特征提取调用 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
895 lines
27 KiB
Dart
895 lines
27 KiB
Dart
import 'package:flutter/material.dart';
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import 'dart:async';
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import 'dart:typed_data';
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import 'dart:convert';
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import 'package:flutter/services.dart';
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import 'package:arc/arc.dart';
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import 'package:camera/camera.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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void main() {
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runApp(const MyApp());
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}
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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home: HomePage(),
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debugShowCheckedModeBanner: false,
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);
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}
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}
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class HomePage extends StatefulWidget {
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const HomePage({super.key});
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@override
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State<HomePage> createState() => _HomePageState();
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}
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class _HomePageState extends State<HomePage> {
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String _platformVersion = 'Unknown';
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String _activeResult = '未激活';
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String _initResult = '未初始化';
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bool _isActivated = false;
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bool _isInitialized = false;
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final _arcPlugin = Arc();
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/// 虹软 SDK 配置信息（请替换为您自己的 AppId、SdkKey 和 ActiveKey）
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final String _appId = '4nPFuS2TYAQh9werHL2qbKjtTH9nnoixk7G6yqSUyjVH';
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final String _sdkKey = 'aWMTT3coxNQFETg9f3BGHCiBznAApXmcHFF3J5yQbsZ';
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final String _activeKey = 'NEAT7AU4KLCEK682';
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@override
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void initState() {
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super.initState();
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initPlatformState();
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}
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/// 获取平台版本
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Future<void> initPlatformState() async {
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String platformVersion;
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try {
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platformVersion =
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await _arcPlugin.getPlatformVersion() ?? 'Unknown platform version';
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} on PlatformException {
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platformVersion = 'Failed to get platform version.';
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}
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if (!mounted) return;
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setState(() {
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_platformVersion = platformVersion;
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});
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}
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/// 激活 SDK
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Future<void> _activeSDK() async {
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setState(() {
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_activeResult = '正在激活...';
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});
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try {
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final result = await _arcPlugin.activeOnline(
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appId: _appId,
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sdkKey: _sdkKey,
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activeKey: _activeKey,
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);
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if (result != null) {
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final success = result['success'] as bool? ?? false;
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final errorCode = result['errorCode'] as int? ?? -1;
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final message = result['message'] as String? ?? '未知错误';
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setState(() {
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_isActivated = success;
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_activeResult = success
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? '激活成功！\n错误码: $errorCode\n$message'
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: '激活失败！\n错误码: $errorCode\n$message';
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});
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}
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} on PlatformException catch (e) {
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setState(() {
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_activeResult = '激活异常: ${e.message}';
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});
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}
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}
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/// 初始化引擎
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Future<void> _initEngine() async {
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if (!_isActivated) {
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setState(() {
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_initResult = '请先激活 SDK';
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});
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return;
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}
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setState(() {
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_initResult = '正在初始化...';
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});
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try {
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// 功能掩码组合：
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// ASF_FACE_DETECT = 0x00000001 (人脸检测)
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// ASF_FACE_RECOGNITION = 0x00000004 (人脸识别)
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// ASF_AGE = 0x00000008 (年龄检测)
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// ASF_GENDER = 0x00000010 (性别检测)
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// ASF_LIVENESS = 0x00000080 (RGB 活体检测)
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// 组合掩码 = 0x01 | 0x04 | 0x08 | 0x10 | 0x80 = 0x9D
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final result = await _arcPlugin.init(
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detectMode: 0, // 0=VIDEO 模式, 1=IMAGE 模式
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orient: 0, // 检测角度优先级
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maxFaceNum: 1, // 单人脸识别场景
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combinedMask: 0x9D, // 功能组合掩码
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);
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if (result != null) {
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final success = result['success'] as bool? ?? false;
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final errorCode = result['errorCode'] as int? ?? -1;
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final message = result['message'] as String? ?? '未知错误';
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setState(() {
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_isInitialized = success;
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_initResult = success
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? '初始化成功！\n错误码: $errorCode\n$message'
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: '初始化失败！\n错误码: $errorCode\n$message';
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});
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}
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} on PlatformException catch (e) {
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setState(() {
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_initResult = '初始化异常: ${e.message}';
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});
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}
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}
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/// 跳转到人脸识别页面
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void _navigateToFaceRecognition() async {
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try {
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final cameras = await availableCameras();
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if (!mounted) return;
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => FaceRecognitionScreen(
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arcPlugin: _arcPlugin,
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cameras: cameras,
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),
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),
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);
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('无法打开摄像头: $e')),
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);
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}
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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: AppBar(
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title: const Text('虹软人脸识别 SDK 示例'),
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backgroundColor: Colors.blue,
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foregroundColor: Colors.white,
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),
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body: SingleChildScrollView(
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padding: const EdgeInsets.all(16.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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// 平台信息
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Card(
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child: Padding(
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padding: const EdgeInsets.all(12.0),
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child: Text(
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'运行平台: $_platformVersion',
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style: const TextStyle(fontSize: 14),
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),
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),
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),
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const SizedBox(height: 16),
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// 激活 SDK 按钮
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ElevatedButton(
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onPressed: _isActivated ? null : _activeSDK,
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style: ElevatedButton.styleFrom(
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backgroundColor: _isActivated ? Colors.grey : Colors.blue,
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foregroundColor: Colors.white,
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padding: const EdgeInsets.symmetric(vertical: 12),
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),
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child: Text(
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_isActivated ? '已激活' : '激活 SDK',
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style: const TextStyle(fontSize: 16),
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),
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),
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const SizedBox(height: 8),
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Card(
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color: _isActivated ? Colors.green[50] : Colors.red[50],
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child: Padding(
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padding: const EdgeInsets.all(12.0),
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child: Text(
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_activeResult,
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style: TextStyle(
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fontSize: 13,
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color: _isActivated ? Colors.green[800] : Colors.red[800],
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),
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),
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),
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),
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const SizedBox(height: 24),
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// 初始化引擎按钮
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ElevatedButton(
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onPressed: _isInitialized ? null : _initEngine,
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style: ElevatedButton.styleFrom(
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backgroundColor: _isInitialized ? Colors.grey : Colors.green,
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foregroundColor: Colors.white,
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padding: const EdgeInsets.symmetric(vertical: 12),
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),
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child: Text(
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_isInitialized ? '已初始化' : '初始化引擎',
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style: const TextStyle(fontSize: 16),
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),
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),
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const SizedBox(height: 8),
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Card(
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color: _isInitialized ? Colors.green[50] : Colors.red[50],
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child: Padding(
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padding: const EdgeInsets.all(12.0),
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child: Text(
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_initResult,
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style: TextStyle(
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fontSize: 13,
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color: _isInitialized ? Colors.green[800] : Colors.red[800],
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),
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),
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),
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),
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const SizedBox(height: 24),
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// 人脸识别按钮
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ElevatedButton(
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onPressed: _isInitialized ? _navigateToFaceRecognition : null,
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style: ElevatedButton.styleFrom(
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backgroundColor: _isInitialized ? Colors.purple : Colors.grey,
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foregroundColor: Colors.white,
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padding: const EdgeInsets.symmetric(vertical: 12),
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),
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child: const Text(
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'开始人脸识别',
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style: TextStyle(fontSize: 16),
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),
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),
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const SizedBox(height: 24),
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// 使用说明
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const Card(
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child: Padding(
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padding: 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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'使用说明:',
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style: TextStyle(
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fontSize: 14,
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fontWeight: FontWeight.bold,
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),
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),
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SizedBox(height: 8),
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Text(
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'1. 点击"激活 SDK"按钮进行在线激活\n'
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'2. 激活成功后点击"初始化引擎"按钮\n'
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'3. 点击"开始人脸识别"进行注册/验证\n\n'
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'注册流程: 人脸检测 → 活体检测 → 特征提取 → 存储\n'
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'验证流程: 人脸检测 → 活体检测 → 特征提取 → 比对',
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style: TextStyle(fontSize: 12),
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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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}
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/// 人脸识别页面 - 实现完整的注册和验证流程
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class FaceRecognitionScreen extends StatefulWidget {
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final Arc arcPlugin;
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final List<CameraDescription> cameras;
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const FaceRecognitionScreen({
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super.key,
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required this.arcPlugin,
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required this.cameras,
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});
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@override
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State<FaceRecognitionScreen> createState() => _FaceRecognitionScreenState();
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}
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class _FaceRecognitionScreenState extends State<FaceRecognitionScreen> {
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CameraController? _cameraController;
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bool _isProcessing = false;
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String _statusMessage = '正在初始化摄像头...';
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// 检测结果
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int _faceCount = 0;
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int _rgbLivenessResult = -1; // -1=未检测, 0=非真人, 1=真人
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// 注册的人脸特征数据存储 key
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static const String _storedFeatureKey = 'stored_face_feature';
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// 当前帧的人脸信息
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Map<String, dynamic>? _currentFaceInfo;
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Uint8List? _currentNv21Data;
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int _currentWidth = 0;
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int _currentHeight = 0;
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// 模式: 0=注册, 1=验证
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int _mode = 0;
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String _modeLabel = '注册模式';
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// 验证结果
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double _similarity = 0.0;
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bool _verified = false;
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@override
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void initState() {
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super.initState();
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_initCamera();
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}
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/// 初始化摄像头
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Future<void> _initCamera() async {
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if (widget.cameras.isEmpty) {
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setState(() {
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_statusMessage = '没有可用的摄像头';
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});
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return;
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}
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// 选择前置摄像头
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CameraDescription? selectedCamera;
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for (var camera in widget.cameras) {
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if (camera.lensDirection == CameraLensDirection.front) {
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selectedCamera = camera;
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break;
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}
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}
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selectedCamera ??= widget.cameras.first;
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_cameraController = CameraController(
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selectedCamera,
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ResolutionPreset.medium,
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enableAudio: false,
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imageFormatGroup: ImageFormatGroup.nv21,
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);
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try {
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await _cameraController!.initialize();
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if (mounted) {
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setState(() {
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_statusMessage = '摄像头就绪';
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});
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_startImageStream();
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}
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} catch (e) {
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if (mounted) {
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setState(() {
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_statusMessage = '摄像头初始化失败: $e';
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});
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}
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}
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}
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/// 启动图像流
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void _startImageStream() {
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_cameraController?.startImageStream(_onImageAvailable);
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}
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/// 图像帧回调 - 人脸检测
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void _onImageAvailable(CameraImage image) async {
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if (_isProcessing) return;
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_isProcessing = true;
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try {
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final int width = image.width;
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final int height = image.height;
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final nv21Data = _extractNV21(image, width, height);
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// 保存当前帧数据用于后续特征提取
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_currentNv21Data = nv21Data;
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_currentWidth = width;
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_currentHeight = height;
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// 人脸检测 + RGB 活体检测
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final detectResult = await widget.arcPlugin.detectFaces(
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data: nv21Data,
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width: width,
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height: height,
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format: 2050,
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);
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if (detectResult != null) {
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final success = detectResult['success'] == true;
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final faceList = detectResult['faceList'] as List? ?? [];
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final rgbLiveness = detectResult['rgbLiveness'] as int? ?? -1;
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|
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if (success && faceList.isNotEmpty) {
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// 保存第一张人脸信息
|
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_currentFaceInfo = Map<String, dynamic>.from(faceList[0] as Map);
|
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|
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if (mounted) {
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setState(() {
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_faceCount = faceList.length;
|
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_rgbLivenessResult = rgbLiveness;
|
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_statusMessage = _rgbLivenessResult == 1 ? '检测到真人' : '检测中...';
|
||
});
|
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}
|
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} else {
|
||
_currentFaceInfo = null;
|
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if (mounted) {
|
||
setState(() {
|
||
_faceCount = 0;
|
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_rgbLivenessResult = -1;
|
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_statusMessage = '未检测到人脸';
|
||
});
|
||
}
|
||
}
|
||
}
|
||
} catch (e) {
|
||
debugPrint('人脸检测异常: $e');
|
||
} finally {
|
||
_isProcessing = false;
|
||
}
|
||
}
|
||
|
||
/// 提取 NV21 数据
|
||
Uint8List _extractNV21(CameraImage image, int width, int height) {
|
||
final ySize = width * height;
|
||
final nv21Size = ySize * 3 ~/ 2;
|
||
|
||
if (image.planes.length == 1) {
|
||
final plane = image.planes[0];
|
||
final bytesPerRow = plane.bytesPerRow;
|
||
|
||
if (bytesPerRow == width) {
|
||
return plane.bytes;
|
||
}
|
||
|
||
final nv21 = Uint8List(nv21Size);
|
||
|
||
for (int row = 0; row < height; row++) {
|
||
final srcOffset = row * bytesPerRow;
|
||
final dstOffset = row * width;
|
||
nv21.setRange(dstOffset, dstOffset + width, plane.bytes, srcOffset);
|
||
}
|
||
|
||
final uvHeight = height ~/ 2;
|
||
for (int row = 0; row < uvHeight; row++) {
|
||
final srcOffset = (height + row) * bytesPerRow;
|
||
final dstOffset = ySize + row * width;
|
||
nv21.setRange(dstOffset, dstOffset + width, plane.bytes, srcOffset);
|
||
}
|
||
|
||
return nv21;
|
||
}
|
||
|
||
final yPlane = image.planes[0];
|
||
final yStride = yPlane.bytesPerRow;
|
||
|
||
final nv21 = Uint8List(nv21Size);
|
||
|
||
for (int row = 0; row < height; row++) {
|
||
final srcOffset = row * yStride;
|
||
final dstOffset = row * width;
|
||
nv21.setRange(dstOffset, dstOffset + width, yPlane.bytes, srcOffset);
|
||
}
|
||
|
||
if (image.planes.length >= 2) {
|
||
final uvPlane = image.planes[1];
|
||
final uvStride = uvPlane.bytesPerRow;
|
||
final uvHeight = height ~/ 2;
|
||
|
||
for (int row = 0; row < uvHeight; row++) {
|
||
final srcOffset = row * uvStride;
|
||
final dstOffset = ySize + row * width;
|
||
nv21.setRange(dstOffset, dstOffset + width, uvPlane.bytes, srcOffset);
|
||
}
|
||
}
|
||
|
||
return nv21;
|
||
}
|
||
|
||
/// 注册人脸
|
||
Future<void> _registerFace() async {
|
||
if (_currentFaceInfo == null || _currentNv21Data == null) {
|
||
_showMessage('未检测到人脸');
|
||
return;
|
||
}
|
||
|
||
if (_rgbLivenessResult != 1) {
|
||
_showMessage('请确保是真人');
|
||
return;
|
||
}
|
||
|
||
// 检查 faceData 是否存在
|
||
final faceData = _currentFaceInfo!['faceData'] as Uint8List?;
|
||
if (faceData == null) {
|
||
_showMessage('人脸数据缺失，请重新检测');
|
||
return;
|
||
}
|
||
|
||
setState(() {
|
||
_statusMessage = '正在提取特征...';
|
||
});
|
||
|
||
try {
|
||
// 提取特征 (REGISTER 模式)
|
||
final result = await widget.arcPlugin.extractFaceFeature(
|
||
data: _currentNv21Data!,
|
||
width: _currentWidth,
|
||
height: _currentHeight,
|
||
rectLeft: _currentFaceInfo!['rectLeft'] as int,
|
||
rectTop: _currentFaceInfo!['rectTop'] as int,
|
||
rectRight: _currentFaceInfo!['rectRight'] as int,
|
||
rectBottom: _currentFaceInfo!['rectBottom'] as int,
|
||
faceOrientation: _currentFaceInfo!['faceOrientation'] as int? ?? 0,
|
||
faceId: _currentFaceInfo!['faceId'] as int? ?? -1,
|
||
faceData: faceData, // 关键：传递 faceData，这是虹软 SDK 特征提取必需的数据
|
||
extractType: 0, // REGISTER 模式
|
||
mask: 0,
|
||
);
|
||
|
||
if (result != null && result['success'] == true) {
|
||
final featureData = result['featureData'] as Uint8List;
|
||
|
||
// 存储特征数据到本地
|
||
final prefs = await SharedPreferences.getInstance();
|
||
await prefs.setString(_storedFeatureKey, _bytesToBase64(featureData));
|
||
|
||
setState(() {
|
||
_statusMessage = '注册成功！特征已保存';
|
||
});
|
||
_showMessage('人脸注册成功！');
|
||
} else {
|
||
final errorCode = result?['errorCode'] ?? -1;
|
||
final errorMsg = result?['message'] ?? '未知错误';
|
||
debugPrint('特征提取失败: errorCode=$errorCode, message=$errorMsg');
|
||
setState(() {
|
||
_statusMessage = '特征提取失败: [$errorCode] $errorMsg';
|
||
});
|
||
}
|
||
} catch (e) {
|
||
setState(() {
|
||
_statusMessage = '注册异常: $e';
|
||
});
|
||
}
|
||
}
|
||
|
||
/// 验证人脸
|
||
Future<void> _verifyFace() async {
|
||
if (_currentFaceInfo == null || _currentNv21Data == null) {
|
||
_showMessage('未检测到人脸');
|
||
return;
|
||
}
|
||
|
||
if (_rgbLivenessResult != 1) {
|
||
_showMessage('请确保是真人');
|
||
return;
|
||
}
|
||
|
||
// 检查 faceData 是否存在
|
||
final faceData = _currentFaceInfo!['faceData'] as Uint8List?;
|
||
if (faceData == null) {
|
||
_showMessage('人脸数据缺失，请重新检测');
|
||
return;
|
||
}
|
||
|
||
// 读取存储的特征
|
||
final prefs = await SharedPreferences.getInstance();
|
||
final storedFeatureBase64 = prefs.getString(_storedFeatureKey);
|
||
|
||
if (storedFeatureBase64 == null) {
|
||
_showMessage('请先注册人脸');
|
||
return;
|
||
}
|
||
|
||
setState(() {
|
||
_statusMessage = '正在提取特征...';
|
||
});
|
||
|
||
try {
|
||
// 提取当前帧特征 (RECOGNIZE 模式)
|
||
final result = await widget.arcPlugin.extractFaceFeature(
|
||
data: _currentNv21Data!,
|
||
width: _currentWidth,
|
||
height: _currentHeight,
|
||
rectLeft: _currentFaceInfo!['rectLeft'] as int,
|
||
rectTop: _currentFaceInfo!['rectTop'] as int,
|
||
rectRight: _currentFaceInfo!['rectRight'] as int,
|
||
rectBottom: _currentFaceInfo!['rectBottom'] as int,
|
||
faceOrientation: _currentFaceInfo!['faceOrientation'] as int? ?? 0,
|
||
faceId: _currentFaceInfo!['faceId'] as int? ?? -1,
|
||
faceData: faceData, // 关键：传递 faceData，这是虹软 SDK 特征提取必需的数据
|
||
extractType: 1, // RECOGNIZE 模式
|
||
mask: 0,
|
||
);
|
||
|
||
if (result != null && result['success'] == true) {
|
||
final currentFeature = result['featureData'] as Uint8List;
|
||
final storedFeature = _base64ToBytes(storedFeatureBase64);
|
||
|
||
// 比对特征
|
||
final compareResult = await widget.arcPlugin.compareFaceFeature(
|
||
featureData1: currentFeature,
|
||
featureData2: storedFeature,
|
||
compareModel: 0, // LIFE_PHOTO 模式
|
||
);
|
||
|
||
if (compareResult != null && compareResult['success'] == true) {
|
||
final similarity = compareResult['similarity'] as double? ?? 0.0;
|
||
final threshold = 0.8; // 推荐阈值
|
||
final isMatch = similarity >= threshold;
|
||
|
||
setState(() {
|
||
_similarity = similarity;
|
||
_verified = isMatch;
|
||
_statusMessage = isMatch
|
||
? '验证通过！相似度: ${(similarity * 100).toStringAsFixed(1)}%'
|
||
: '验证失败！相似度: ${(similarity * 100).toStringAsFixed(1)}%';
|
||
});
|
||
} else {
|
||
setState(() {
|
||
_statusMessage = '比对失败';
|
||
});
|
||
}
|
||
} else {
|
||
setState(() {
|
||
_statusMessage = '特征提取失败';
|
||
});
|
||
}
|
||
} catch (e) {
|
||
setState(() {
|
||
_statusMessage = '验证异常: $e';
|
||
});
|
||
}
|
||
}
|
||
|
||
/// 切换模式
|
||
void _toggleMode() {
|
||
setState(() {
|
||
_mode = _mode == 0 ? 1 : 0;
|
||
_modeLabel = _mode == 0 ? '注册模式' : '验证模式';
|
||
_similarity = 0.0;
|
||
_verified = false;
|
||
});
|
||
}
|
||
|
||
/// 清除注册数据
|
||
Future<void> _clearRegistration() async {
|
||
final prefs = await SharedPreferences.getInstance();
|
||
await prefs.remove(_storedFeatureKey);
|
||
setState(() {
|
||
_similarity = 0.0;
|
||
_verified = false;
|
||
_statusMessage = '已清除注册数据';
|
||
});
|
||
_showMessage('注册数据已清除');
|
||
}
|
||
|
||
/// 字节数组转 Base64
|
||
String _bytesToBase64(Uint8List bytes) {
|
||
return base64Encode(bytes);
|
||
}
|
||
|
||
/// Base64 转字节数组
|
||
Uint8List _base64ToBytes(String base64) {
|
||
return base64Decode(base64);
|
||
}
|
||
|
||
/// 显示消息
|
||
void _showMessage(String message) {
|
||
if (mounted) {
|
||
ScaffoldMessenger.of(context).showSnackBar(
|
||
SnackBar(content: Text(message)),
|
||
);
|
||
}
|
||
}
|
||
|
||
@override
|
||
void dispose() {
|
||
_cameraController?.stopImageStream();
|
||
_cameraController?.dispose();
|
||
super.dispose();
|
||
}
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
return Scaffold(
|
||
appBar: AppBar(
|
||
title: Text(_modeLabel),
|
||
backgroundColor: Colors.purple,
|
||
foregroundColor: Colors.white,
|
||
actions: [
|
||
IconButton(
|
||
icon: const Icon(Icons.swap_horiz),
|
||
onPressed: _toggleMode,
|
||
tooltip: '切换模式',
|
||
),
|
||
IconButton(
|
||
icon: const Icon(Icons.delete_outline),
|
||
onPressed: _clearRegistration,
|
||
tooltip: '清除注册数据',
|
||
),
|
||
],
|
||
),
|
||
body: Column(
|
||
children: [
|
||
// 摄像头预览
|
||
Expanded(
|
||
child: _cameraController != null &&
|
||
_cameraController!.value.isInitialized
|
||
? Center(
|
||
child: CameraPreview(_cameraController!),
|
||
)
|
||
: Center(
|
||
child: Column(
|
||
mainAxisAlignment: MainAxisAlignment.center,
|
||
children: [
|
||
const CircularProgressIndicator(),
|
||
const SizedBox(height: 16),
|
||
Text(_statusMessage),
|
||
],
|
||
),
|
||
),
|
||
),
|
||
|
||
// 检测信息和操作面板
|
||
Container(
|
||
width: double.infinity,
|
||
padding: const EdgeInsets.all(16),
|
||
color: Colors.black87,
|
||
child: Column(
|
||
crossAxisAlignment: CrossAxisAlignment.start,
|
||
children: [
|
||
// 状态信息
|
||
Text(
|
||
_statusMessage,
|
||
style: const TextStyle(
|
||
color: Colors.white,
|
||
fontSize: 16,
|
||
fontWeight: FontWeight.bold,
|
||
),
|
||
),
|
||
const SizedBox(height: 8),
|
||
|
||
// 人脸和活体状态
|
||
Row(
|
||
children: [
|
||
Icon(
|
||
_faceCount > 0 ? Icons.face : Icons.face_retouching_off,
|
||
color: _faceCount > 0 ? Colors.green : Colors.grey,
|
||
size: 20,
|
||
),
|
||
const SizedBox(width: 8),
|
||
Text(
|
||
'人脸: ${_faceCount > 0 ? "已检测" : "未检测"}',
|
||
style: TextStyle(
|
||
color: _faceCount > 0 ? Colors.green : Colors.grey,
|
||
fontSize: 14,
|
||
),
|
||
),
|
||
const SizedBox(width: 16),
|
||
Icon(
|
||
_rgbLivenessResult == 1
|
||
? Icons.check_circle
|
||
: _rgbLivenessResult == 0
|
||
? Icons.cancel
|
||
: Icons.help_outline,
|
||
color: _rgbLivenessResult == 1
|
||
? Colors.green
|
||
: _rgbLivenessResult == 0
|
||
? Colors.red
|
||
: Colors.orange,
|
||
size: 20,
|
||
),
|
||
const SizedBox(width: 8),
|
||
Text(
|
||
'活体: ${_rgbLivenessResult == 1 ? "真人" : _rgbLivenessResult == 0 ? "非真人" : "未知"}',
|
||
style: TextStyle(
|
||
color: _rgbLivenessResult == 1
|
||
? Colors.green
|
||
: _rgbLivenessResult == 0
|
||
? Colors.red
|
||
: Colors.orange,
|
||
fontSize: 14,
|
||
),
|
||
),
|
||
],
|
||
),
|
||
|
||
// 验证结果显示
|
||
if (_mode == 1 && _similarity > 0) ...[
|
||
const SizedBox(height: 8),
|
||
const Divider(color: Colors.white24),
|
||
const SizedBox(height: 8),
|
||
Row(
|
||
children: [
|
||
Icon(
|
||
_verified ? Icons.verified_user : Icons.warning,
|
||
color: _verified ? Colors.green : Colors.red,
|
||
size: 24,
|
||
),
|
||
const SizedBox(width: 8),
|
||
Text(
|
||
'相似度: ${(_similarity * 100).toStringAsFixed(1)}%',
|
||
style: TextStyle(
|
||
color: _verified ? Colors.green : Colors.red,
|
||
fontSize: 18,
|
||
fontWeight: FontWeight.bold,
|
||
),
|
||
),
|
||
const SizedBox(width: 8),
|
||
Text(
|
||
_verified ? '验证通过' : '非本人',
|
||
style: TextStyle(
|
||
color: _verified ? Colors.green : Colors.red,
|
||
fontSize: 14,
|
||
),
|
||
),
|
||
],
|
||
),
|
||
],
|
||
|
||
const SizedBox(height: 12),
|
||
|
||
// 操作按钮
|
||
Row(
|
||
children: [
|
||
Expanded(
|
||
child: ElevatedButton.icon(
|
||
onPressed: _mode == 0 ? _registerFace : _verifyFace,
|
||
icon: Icon(_mode == 0 ? Icons.person_add : Icons.verified_user),
|
||
label: Text(_mode == 0 ? '注册人脸' : '验证身份'),
|
||
style: ElevatedButton.styleFrom(
|
||
backgroundColor: _mode == 0 ? Colors.blue : Colors.green,
|
||
foregroundColor: Colors.white,
|
||
padding: const EdgeInsets.symmetric(vertical: 12),
|
||
),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
|
||
// 提示
|
||
const SizedBox(height: 8),
|
||
Text(
|
||
_mode == 0
|
||
? '提示: 注册时会提取人脸特征并保存到本地'
|
||
: '提示: 验证时会与已注册的特征进行比对，阈值 0.8',
|
||
style: const TextStyle(
|
||
color: Colors.white54,
|
||
fontSize: 11,
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
}
|
||
} |