flutter - 编写阿里云-金融级实名认证插件

项目中有实名认证的需求，用户上传身份证反正面，进行人脸核验，后台集成的是阿里云的金融级实名认证SDK，巧合的是阿里云没有packages 需要自己造轮子。
废话不多少，直接上代码：

新建项目 ProjectType = Plugin

创建完成后，会自动为我们搭建好通信结构

编写Dart中间件

在项目下的 lib下的dart文件中定义我们的通信方法。
实名认证需要两个方法分别是：
获取本机信息发送给服务器返回ID
调用实名认证，以及返回结果

import 'dart:async';

import 'package:flutter/services.dart';

class AliAuthPerson {
  static const MethodChannel _channel = MethodChannel('ali_auth_person');

  static Future<String?> get platformVersion async {
    final String? version = await _channel.invokeMethod('getPlatformVersion');
    return version;
  }

  static const EventChannel _eventChannel =
      EventChannel("ali_auth_person_plugin_event");

  ///认证结果返回监听
  static addListen(Function(String resData) onEvent) {
    _eventChannel.receiveBroadcastStream().listen((data) {
      onEvent(data);
    });
  }

  ///实名认证
  static Future<void> verify(String certifyId) async {
    await _channel.invokeMethod("verify", certifyId);
  }

  ///获取本机参数
  static Future<String> getMetaInfos() async {
    return await _channel.invokeMethod("getMetaInfos");
  }
}

Andriod 集成

参考：阿里云官方解说：https://help.aliyun.com/document_detail/163105.html

复制粘贴 AAR文件
将SDK的中的 AAR放入项目内
在这里插入图片描述导入声明

dependencies {
    compileOnly files("$flutterRoot/bin/cache/artifacts/engine/android-arm/flutter.jar")
    //阿里云实人认证SDK
    implementation(name:'android-aliyunbasicstl-sdk-release-1.6.0-20220414192835', ext:'aar')
    implementation(name:'android-aliyuncomm-sdk-release-1.6.0-20220414192835', ext:'aar')
    implementation(name:'Android-AliyunDevice-FG-10022.2', ext:'aar')
    implementation(name:'android-aliyunface-sdk-release-1.6.0-20220414192835', ext:'aar')
    implementation(name:'android-aliyunocr-sdk-release-1.6.0-20220414192835', ext:'aar')
    implementation(name:'APSecuritySDK-DeepSec-7.0.1.20211220', ext:'aar')
    implementation(name:'photinus-1.0.1.220217162928', ext:'aar')
    implementation(name:'tygerservice-1.0.0.220407164130', ext:'aar')

    //三方依赖库
    implementation 'com.squareup.okhttp3:okhttp:3.11.0'
    implementation 'com.squareup.okio:okio:1.14.0'
    implementation 'com.alibaba:fastjson:1.2.62'
    implementation 'com.aliyun.dpa:oss-android-sdk:+'
}

编写Android 适配方法
代码如下

package com.lrs.ali_auth_person.ali_auth_person;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;

import androidx.annotation.NonNull;

import com.aliyun.aliyunface.api.ZIMCallback;
import com.aliyun.aliyunface.api.ZIMFacade;
import com.aliyun.aliyunface.api.ZIMFacadeBuilder;
import com.aliyun.aliyunface.api.ZIMResponse;

import org.json.JSONException;
import org.json.JSONObject;

import io.flutter.embedding.engine.FlutterEngine;
import io.flutter.embedding.engine.plugins.FlutterPlugin;
import io.flutter.embedding.engine.plugins.activity.ActivityAware;
import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
import io.flutter.plugin.common.EventChannel;
import io.flutter.plugin.common.MethodCall;
import io.flutter.plugin.common.MethodChannel;
import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
import io.flutter.plugin.common.MethodChannel.Result;
import io.flutter.plugin.common.PluginRegistry;

/**
 * AliAuthPersonPlugin
 */
public class AliAuthPersonPlugin implements FlutterPlugin, MethodCallHandler, ActivityAware {
    /// The MethodChannel that will the communication between Flutter and native Android
    ///
    /// This local reference serves to register the plugin with the Flutter Engine and unregister it
    /// when the Flutter Engine is detached from the Activity
    private MethodChannel channel;
    // 上下文 Context
    private Context context;
    private Activity activity;
    private EventChannel.EventSink eventSink;


    @Override
    public void onAttachedToEngine(@NonNull FlutterPluginBinding flutterPluginBinding) {
        channel = new MethodChannel(flutterPluginBinding.getBinaryMessenger(), "ali_auth_person");
        channel.setMethodCallHandler(this);
        context = flutterPluginBinding.getApplicationContext();

        final EventChannel eventChannel = new EventChannel(flutterPluginBinding.getBinaryMessenger(), "ali_auth_person_plugin_event");
        eventChannel.setStreamHandler(new EventChannel.StreamHandler() {
            @Override
            public void onListen(Object o, EventChannel.EventSink eventSink) {
                AliAuthPersonPlugin.this.eventSink = eventSink;
            }

            @Override
            public void onCancel(Object o) {
                AliAuthPersonPlugin.this.eventSink = null;
            }
        });
    }


    @Override
    public void onMethodCall(@NonNull MethodCall call, @NonNull Result result) {
        if (call.method.equals("getPlatformVersion")) {
            result.success("Android " + android.os.Build.VERSION.RELEASE);
        } else if (call.method.equals("getMetaInfos")) {
            //获取本机参数
            String metaInfo = ZIMFacade.getMetaInfos(context);
            result.success(metaInfo);
        } else if (call.method.equals("verify")) {
            //进行实名认证
            String certifyId = call.arguments();
            if (certifyId == null || certifyId.isEmpty()) {
                Toast.makeText(context, "certifyId 不能为空！", Toast.LENGTH_SHORT).show();
                return;
            }
            Toast.makeText(context, "" + certifyId, Toast.LENGTH_SHORT).show();
            ZIMFacade.install(context);
            ZIMFacade zimFacade = ZIMFacadeBuilder.create(activity);
            zimFacade.verify(certifyId, true, new ZIMCallback() {
                @Override
                public boolean response(ZIMResponse response) {
                    // TODO：根据实人认证回调结果处理自身的业务。
                    JSONObject jsonObject = new JSONObject();
                    try {
                        jsonObject.put("code", response.code);
                        jsonObject.put("msg", response.msg);
                        jsonObject.put("deviceToken", response.deviceToken);
                        jsonObject.put("videoFilePath", response.videoFilePath);
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    eventSink.success(jsonObject.toString());
                    return true;
                }
            });
        } else {
            result.notImplemented();
        }
    }

    @Override
    public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
        channel.setMethodCallHandler(null);
    }

    @Override
    public void onAttachedToActivity(@NonNull ActivityPluginBinding binding) {
        activity = binding.getActivity();
    }

    @Override
    public void onDetachedFromActivityForConfigChanges() {

    }

    @Override
    public void onReattachedToActivityForConfigChanges(@NonNull ActivityPluginBinding binding) {

    }

    @Override
    public void onDetachedFromActivity() {

    }
}

Ios集成

参考：阿里云官方解说：https://help.aliyun.com/document_detail/163106.html

复制粘贴 frameworks
在这里插入图片描述导入声明

编写 .podspec文件如下

#
# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html.
# Run `pod lib lint ali_auth_person.podspec` to validate before publishing.
#
Pod::Spec.new do |s|
  s.name             = 'ali_auth_person'
  s.version          = '0.0.1'
  s.summary          = 'A new Flutter project.'
  s.description      = <<-DESC
A new Flutter project.
                       DESC
  s.homepage         = 'http://example.com'
  s.license          = { :file => '../LICENSE' }
  s.author           = { 'Your Company' => 'email@example.com' }
  s.source           = { :path => '.' }
  s.source_files = 'Classes/**/*'
  s.public_header_files = 'Classes/**/*.h'
  s.dependency 'Flutter'
  s.platform = :ios, '9.0'

  s.vendored_frameworks = 'frameworks/AliyunIdentityManager.framework','frameworks/AliyunOSSiOS.framework','frameworks/APBToygerFacade.framework','frameworks/APPSecuritySDK.framework','frameworks/BioAuthAPI.framework','frameworks/BioAuthEngine.framework','frameworks/deviceiOS.framework','frameworks/MPRemoteLogging.framework','frameworks/OCRDetectSDKForTech.framework','frameworks/ToygerNative.framework','frameworks/ToygerService.framework','frameworks/ZolozIdentityManager.framework','frameworks/ZolozMobileRPC.framework','frameworks/ZolozOpenPlatformBuild.framework','frameworks/ZolozSensorServices.framework','frameworks/ZolozUtility.framework'

  s.frameworks = 'CoreGraphics','Accelerate','SystemConfiguration','AssetsLibrary','CoreTelephony','QuartzCore','CoreFoundation','CoreLocation','ImageIO','CoreMedia','CoreMotion','AVFoundation','WebKit','AudioToolbox','CFNetwork','MobileCoreServices','AdSupport'

  s.libraries = 'resolv','z','c++.1','c++abi','z.1.2.8'

  s.resource_bundles = { 'Resources' => 'frameworks/*.framework/*.bundle' }


  # Flutter.framework does not contain a i386 slice.
  # s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }
  s.swift_version = '5.0'

  # s.ios.deployment_target = '9.0'
  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'VALID_ARCHS[sdk=iphonesimulator*]' => 'x86_64' }
  s.pod_target_xcconfig = {'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'arm64'   }
  s.user_target_xcconfig = { 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'arm64' }
end

编写IOS适配方法

import Flutter
import UIKit
import AliyunIdentityManager

//当前视图 ViewController;
var controller : UIViewController?;
//method管道
var channel : FlutterMethodChannel?;
//event管道
var eventChannel : FlutterEventChannel?;
//回调flutter
let eventStreamHandler = EventStreamHandler()
public class SwiftAliAuthPersonPlugin: NSObject, FlutterPlugin{

  public static func register(with registrar: FlutterPluginRegistrar) {
    channel = FlutterMethodChannel(name: "ali_auth_person", binaryMessenger: registrar.messenger())
    let instance = SwiftAliAuthPersonPlugin()
    registrar.addMethodCallDelegate(instance, channel: channel!)
    eventChannel = FlutterEventChannel(name: "ali_auth_person_plugin_event", binaryMessenger: registrar.messenger())
    eventChannel?.setStreamHandler((eventStreamHandler as! FlutterStreamHandler & NSObjectProtocol))
    //初始化阿里SDK
    AliyunSdk.`init`();
  }

  public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
      //获取本机参数
      if(call.method == "getMetaInfos"){
          let info  = AliyunIdentityManager.getMetaInfo();
          var jsonData: Data? = nil
          do {
              if info != nil {
                  jsonData = try JSONSerialization.data(withJSONObject: info!, options: .prettyPrinted)
              }
          } catch  _ {
              print("(parseError.localizedDescription)");
          }
          var infoData : String? = "";
          if let jsonData = jsonData {
              infoData = String(data: jsonData, encoding: .utf8)
          };
         result(infoData);
      }else if(call.method == "verify"){
          controller = UIApplication.shared.delegate?.window??.rootViewController;
          //进行实名认证
          let  certifyId : String = String(describing: call.arguments!);
          print(certifyId);
          let extParams: [String : Any] = ["currentCtr": controller!];
          AliyunIdentityManager.sharedInstance()?.verify(with: certifyId, extParams: extParams, onCompletion: { (response) in
              DispatchQueue.main.async {
                  var resString = ""
                  switch response?.code {
                  case .ZIMResponseSuccess:
                    resString = "认证成功"
                      break;
                  case .ZIMInterrupt:
                      resString = "初始化失败"
                   break
                  case .ZIMTIMEError:
                   resString = "设备时间错误"
                   break
                  case .ZIMNetworkfail:
                   resString = "网络错误"
                   break
                  case .ZIMInternalError:
                   resString = "用户退出"
                   break
                  case .ZIMResponseFail:
                   resString = "刷脸失败"
                  default:
                      resString = "未知异常"
                      break
                  }
                  eventStreamHandler.sendEvent(event: "{'code':\(response?.code)},'msg':\(resString),'deviceToken':\(response?.deviceToken),'videoFilePath':\(response?.videoFilePath)");
              }
          })
      }else{
          result("")
      }
  }
}

class EventStreamHandler: FlutterStreamHandler {
    private var eventSink:FlutterEventSink? = nil
    func onListen(withArguments arguments: Any?, eventSink events: @escaping FlutterEventSink) -> FlutterError? {
        eventSink = events
        return nil
    }
    
    func onCancel(withArguments arguments: Any?) -> FlutterError? {
        eventSink = nil
        return nil
    }
    
    public func sendEvent(event:Any) {
        eventSink?(event)
    }
}