Flutter活体检测插件intp_flutter_liveness_sdk的使用

平台支持

安装

iOS

在ios/Runner/Info.plist文件中添加三行：

• 一个键为Privacy - Camera Usage Description，并附上使用说明。
• 一个键为Privacy - Microphone Usage Description，并附上使用说明。

以XML格式编辑Info.plist文件，添加以下内容：

  <key>NSCameraUsageDescription</key>
  <string>Camera Access</string>
  <key>NSMicrophoneUsageDescription</key>
  <string>Microphone Access</string>

Android

在android/app/build.gradle文件中将最低Android SDK版本修改为21或更高。

minSdkVersion 21

使用

你可以使用LivenessCamera SDK来执行活体检测步骤，这适用于Android和iOS平台。

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:intp_flutter_liveness_sdk/intp_flutter_liveness_sdk.dart';

Future<void> main() async {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Liveness detection'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  [@override](/user/override)
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  Future<String?> buildDialog(Map<String, dynamic> value) {
    debugPrint("_buildDialog: $value");

    String content = "Detection failed !!!";

    if (value['Liveness'] != null && value['Liveness']['detectSuccess']) {
      content = "Detection success !!!";
    }

    if (value['statusCode'] != null && value['statusCode'] != 200) {
      content = "Error : $value";
    }

    return showDialog<String>(
      context: context,
      builder: (BuildContext context) => AlertDialog(
        title: const Text('Result'),
        content: Text(content),
        actions: <Widget>[
          TextButton(
            onPressed: () => Navigator.pop(context, 'OK'),
            child: const Text('OK'),
          ),
        ],
      ),
    );
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);

    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: SafeArea(
        child: LivenessCamera(
          livenessResponse: (Map<String, dynamic> value) {
            // 处理下一步事件或导航
            buildDialog(value);
          },
          endpoint: "API_ENDPOINT",
          apiKey: "API_KEY",
          transactionId: "TRANSACTION_ID",
          // actionsInstruction: const {
          //   'SHAKE_LEFT': 'New caption turn your head left',
          //   'SHAKE_RIGHT': 'New caption turn your head right',
          //   'NOD_HEAD': "New caption nod your head",
          //   'MOUTH': "New caption open your mouth",
          // },
          // numberOfActions: 2,
          // numberOfRetry: 1,
          // backgroundColor: Colors.red,
          // fontFamily: "Kanit-Regular", /* 加载字体来自assets */
        ),
      ),
    );
  }
}