This is an official Flutter plugin, which provides an easier integration of iDenfy KYC services. This plugin offers identity verification and face authentication flows

Table of contents

• Getting started
  • 1. Obtaining an authentication token
  • 2. Availability information & new project setup
  • 3. Adding iDenfy Flutter SDK
    • 3.1 Configuring Android project
      • 3.2 Configuring IOS project
  • 4. Adding iDenfy Flutter SDK manually
    • 4.1 Configuring Android project
      • 4.2 Configuring IOS project
  • 5. Troubleshooting compile errors

• Usage
  • Identity verification usage
  • Face authentication usage
• Callbacks
  • Identity verification callbacks
  • Face authentication callbakcs
• Additional customization
• SDK Integration tutorials

Getting started

1. Obtaining an authentication token

The SDK requires token for starting initialization. Token generation guide

2. Availability information & new project setup

Since Apple is deprecating Bitcode, iDenfy IOS SDK now has bitcode disabled as well. If you run into compile errors due to disabled bitcode, please make sure:

1. Your application has bitcode disabled in the project setttings
2. Your Podfile contains the following code:

post_install do |installer|
  installer.pods_project.targets.each do |target|
    if target.name == "lottie-ios"
      target.build_configurations.each do |config|
        config.build_settings['BUILD_LIBRARY_FOR_DISTRIBUTION'] = 'YES'
      end
    end
    if target.name == "idenfy_sdk_flutter"
      target.build_configurations.each do |config|
        config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '13.0'
        config.build_settings['ENABLE_BITCODE'] = 'NO'
      end
    end
    flutter_additional_ios_build_settings(target)
  end
end

Minimum required versions by the platform:

IOS - 13.0

Android - API 24

If you are starting a new Flutter project you can follow Flutter install guide. Once the setup is completed successfully, you can add iDenfy SDK dependencies.

3. Adding iDenfy Flutter SDK

To add iDenfy SDK plugin, open your project's pubspec.yaml file and append it with the latest iDenfy SDK flutter plugin:

dependencies:
  idenfy_sdk_flutter: ^2.5.9

3.1 Configuring Android project

Please make sure to enable multidex in app/build.gradle:

android {
  defaultConfig {
     multiDexEnabled true
  }
}

Configure your application's gradle.properties file:

android.useAndroidX=true
android.enableJetifier=true

Proguard rules

If you use code obfuscation for Android with a proguard-rules.pro file. You should update it with ours, otherwise some unexpected behaviour might occur.

Also, since AGP 8.0 enables R8 full mode by default, make sure you have disabled R8 full mode in the gradle.properties file:

android.enableR8.fullMode=false

3.2 Configuring IOS project

NSCameraUsageDescription must be provided in the application's Info.plist file:

<key>NSCameraUsageDescription</key>
<string>Required for document and facial capture</string>

Install the pods:

cd ios
pod install
cd ..

4. Adding iDenfy Flutter SDK manually

For more customization, you can use our sample in this repository

4.1 Configuring Android Project

Please make sure you use the latest iDenfy SDK dependency in build/gradle file:

dependencies {
    implementation "idenfySdk:com.idenfy.idenfySdk:x.y.z"
}

Having done that, sync gradle project files.

4.2 Configuring IOS Project

1. Installing dependency

Please make sure you use the latest iDenfy SDK dependency in idenfy_sdk_flutter.podspec file:

s.dependency 'iDenfySDK/iDenfyLiveness', 'x.y.z'

2. Updating post install script

Navigate to the ios/Podfile file and edit the post_install script.

post_install do |installer|
  installer.pods_project.targets.each do |target|
    if target.name == "lottie-ios"
      target.build_configurations.each do |config|
        config.build_settings['BUILD_LIBRARY_FOR_DISTRIBUTION'] = 'YES'
      end
    end
    if target.name == "idenfy_sdk_flutter"
      target.build_configurations.each do |config|
        config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '13.0'
        config.build_settings['ENABLE_BITCODE'] = 'NO'
      end
    end
    flutter_additional_ios_build_settings(target)
  end
end

This script ensures that "lottie-ios" have module stability as well as IOS 13.0 support, which is required for the NFC feature.

3. Running pod install

After that, install the pods:

cd ios
pod install
cd ..

If you face compiling issues, like "using bridging headers with module interfaces is unsupported" you should set Build libraries for distribution to NO in your app build settings.

The example IOS app has the correct configuration.

5. Troubleshooting compile errors

IOS

If your application uses Objective-C bridging headers you might face the following compile error: using bridging headers with module interfaces is unsupported. Command CompileSwiftSources failed with a nonzero exit code.

<img alt="Embed & Sign" width="700" src={useBaseUrl('img/mobile/idenfy_ios_compile_error.png')} />

To solve this error, you should try these steps:

1. You should set Build libraries for distribution to NO in your Runner app build settings.

2. Change post_install script in the Runner app Podfile to the following:

post_install do |installer|
    installer.pods_project.targets.each do |target|
        if target.name == "lottie-ios"
          target.build_configurations.each do |config|
            config.build_settings['BUILD_LIBRARY_FOR_DISTRIBUTION'] = 'YES'
        end
      end
    end
end

Usage

Identity verification flow usage

Firstly, import idenfysdkflutter.dart file:

import 'package:idenfy_sdk_flutter/idenfy_sdk_flutter.dart';

After successful integration you should be able to call IdenfySdkFlutter.start method.

If the project is not successfully compiled or runtime issues occur, make sure you have followed the steps. For better understanding you may check the sample app in this repository.

Once you have an authentication token, which can be retrieved with following code, found in the example app, you can call IdenfySdkFlutter.start:

  Future<String> getAuthTokenRequest() async {
      final response = await http.post(
        Uri.https(Constants.BASE_URL, '/api/v2/token'),
        headers: <String, String>{
          'Accept': 'application/json',
          'Content-Type': 'application/json',
          'Authorization': 'Basic ' + base64Encode(utf8.encode('${Constants.apiKey}:${Constants.apiSecret}')),
        },
        body: jsonEncode(<String, String> {
          "clientId": Constants.clientId,
        }),
      );
      if (response.statusCode == 201) {
        return jsonDecode(response.body)["authToken"];
      } else {
        throw Exception('Failed to fetch token');
      }
    }

  Future<void> initIdenfySdk() async {
      IdenfyIdentificationResult idenfySDKresult;
      Exception localException;
      try {
      String authToken = await getAuthTokenRequest();
        idenfySDKresult = await IdenfySdkFlutter.start(authToken);
      } on Exception catch(e) {
        localException = e;
      }

      setState(() {
        _idenfySDKresult = idenfySDKresult;
        exception = localException;
      });
    }

Please make sure to provide your cliendId, apikey and apisecret constants, they can be found in constants.dart file:

const String BASE_URL = 'ivs.idenfy.com';
const String clientId = 'idenfySampleClientID';
const String apiKey = 'PUT_YOUR_IDENFY_API_KEY_HERE';
const String apiSecret = 'PUT_YOUR_IDENFY_API_SECRET_HERE';

Calling IdenfySdkFlutter.start with provided authToken:

  Future<void> initIdenfySdk() async {
    IdenfyIdentificationResult idenfySDKresult;
    String authToken = "TOKEN"
    try {
        idenfySDKresult = await IdenfySdkFlutter.start(authToken);
    } on PlatformException {
    }

    setState(() {
        _idenfySDKresult = idenfySDKresult;
    });

Face authentication flow usage

More on this flow, read here.

Firstly, import idenfysdkflutter.dart file:

import 'package:idenfy_sdk_flutter/idenfy_sdk_flutter.dart';

After successful integration you should be able to call IdenfySdkFlutter.startFaceAuth method.

If the project is not successfully compiled or runtime issues occur, make sure you have followed the steps. For better understanding you may check the sample app in this repository.

Firstly, you should check for the authentication status, whether the face authentication can be performed. Having checked that, you will receive a token status:

Name	Description
AUTHENTICATION	The user can authenticate by face
IDENTIFICATION	The user must perform an identification

Everything can be done with following code, found in the example app:

  Future<String> getFaceAuthTokenType(String scanref, String authenticationMethod) async {
    final queryParameters = {
      'method': authenticationMethod,
    };
    final response = await http.get(
      Uri.https(Constants.BASE_URL,
          '/identification/facial-auth/$scanref/check-status/', queryParameters),
      headers: <String, String>{
        'Accept': 'application/json',
        'Content-Type': 'application/json',
        'Authorization':
            'Basic ${base64Encode(utf8.encode('${Constants.apiKey}:${Constants.apiSecret}'))}',
      },
    );
    if (response.statusCode == 200) {
      return jsonDecode(response.body)["type"];
    } else {
      throw Exception('Failed to fetch token type');
    }
  }

  Future<String> getFaceAuthTokenRequest(String scanref, String tokenType, String authenticationMethod) async {
    final response = await http.post(
      Uri.https(Constants.BASE_URL, '/partner/authentication-info'),
      headers: <String, String>{
        'Accept': 'application/json',
        'Content-Type': 'application/json',
        'Authorization': 'Basic ' +
            base64Encode(
                utf8.encode('${Constants.apiKey}:${Constants.apiSecret}')),
      },
      body: jsonEncode(<String, String>{
        "scanRef": scanref,
        "type": tokenType,
        "method": authenticationMethod
      }),
    );
    if (response.statusCode == 200) {
      return jsonDecode(response.body)["token"];
    } else {
      throw Exception('Failed to fetch token');
    }
  }

  Future<void> initIdenfyFaceAuth(String scanref) async {
    String authenticationMethod = "FACE_MATCHING";
  
    FaceAuthenticationResult? faceAuthenticationResult;
    Exception? localException;
    try {
      String faceAuthTokenType = await getFaceAuthTokenType(scanref, authenticationMethod);
      String token = "";
      switch (faceAuthTokenType) {
        case 'AUTHENTICATION':
          //The user can authenticate by face
          token = await getFaceAuthTokenRequest(scanref, faceAuthTokenType, authenticationMethod);
          break;
        default:
          //The user must perform an identification
          break;
      }
      faceAuthenticationResult =
          await IdenfySdkFlutter.startFaceAuth(token, false);
    } on Exception catch (e) {
      localException = e;
    }

    setState(() {
      _faceAuthenticationResult = faceAuthenticationResult;
      exception = localException;
      _textFieldController.clear();
    });
  }

An additional bool can be passed to the function to set the immediate redirect feature. This sets whether the results from iDenfy SDK should be received immediately without any additional result pages

IdenfySdkFlutter.startFaceAuth(token, true);

Face authentication UI settings class can be passed to modify the face authentication flow:

      IdenfyFaceAuthUISettings settings = IdenfyFaceAuthUIBuilder()
          .withLanguageSelection(true)
          .withOnBoardingView(true)
          .build();

      faceAuthenticationResult = await IdenfySdkFlutter.startFaceAuth(
          token, false,
          idenfyFaceAuthUISettings: settings);

Please make sure to provide your cliendId, apikey and apisecret constants, they can be found in constants.dart file:

const String BASE_URL = 'ivs.idenfy.com';
const String clientId = 'idenfySampleClientID';
const String apiKey = 'PUT_YOUR_IDENFY_API_KEY_HERE';
const String apiSecret = 'PUT_YOUR_IDENFY_API_SECRET_HERE';

Callbacks

Identity verification flow callbacks

Callback from the SDK can be retrieved from IdenfySdkFlutter.start future:

try {
    idenfySDKresult = await IdenfySdkFlutter.start(authToken);
} on PlatformException {
}

setState(() {
    _idenfySDKresult = idenfySDKresult;
});

Result is an IdenfyIdentificationResult class with AutoIdentificationStatus, ManualIdentificationStatus enums and additional SuspectedIdentificationStatus:

class IdenfyIdentificationResult {
    AutoIdentificationStatus autoIdentificationStatus;
    ManualIdentificationStatus manualIdentificationStatus;
    SuspectedIdentificationStatus suspectedIdentificationStatus;
}

Information about the IdenfyIdentificationResult autoIdentificationStatus statuses:

Name	Description
APPROVED	The user completed an identification flow and the identification status, provided by an automated platform, is APPROVED.
FAILED	The user completed an identification flow and the identification status, provided by an automated platform, is FAILED.
UNVERIFIED	The user did not complete an identification flow and the identification status, provided by an automated platform, is UNVERIFIED.

Information about the IdenfyIdentificationResult manualIdentificationStatus statuses:

Name	Description
APPROVED	The user completed an identification flow and was verified manually while waiting for the manual verification results in the iDenfy SDK. The identification status, provided by a manual review, is APPROVED.
FAILED	The user completed an identification flow and was verified manually while waiting for the manual verification results in the iDenfy SDK. The identification status, provided by a manual review, is FAILED.
WAITING	The user completed an identification flow and started waiting for the manual verification results in the iDenfy SDK. Then he/she decided to stop waiting and pressed a "BACK TO ACCOUNT" button. The manual identification review is still ongoing.
INACTIVE	The user was only verified by an automated platform, not by a manual reviewer. The identification performed by the user can still be verified by the manual review if your system uses the manual verification service.

Information about the IdenfyIdentificationResult suspectedIdentificationStatus statuses:

Name	Description
autoSuspected	The user completed an identification flow and the identification status, provided by an automated platform, is SUSPECTED.
manualSuspected	The user completed an identification flow and the identification status, provided by a manual reviewer, is SUSPECTED.

*Note The manualIdentificationStatus status always returns INACTIVE status, unless your system implements manual identification callback, but does not create a separate waiting screen for indicating about the ongoing manual identity verification process. For better customization we suggest using the immediate redirect feature. As a result, the user will not see an automatic identification status, provided by iDenfy service. The SDK will be closed while showing loading indicators.

Face authentication flow callbacks

Callback from the SDK can be retrieved from IdenfySdkFlutter.startFaceAuth future:

    FaceAuthenticationResult? faceAuthenticationResult;
    try {
      faceAuthenticationResult = await IdenfySdkFlutter.startFaceAuth(token, false);
    } on Exception catch (e) {
    }

    setState(() {
      _faceAuthenticationResult = faceAuthenticationResult;
    });

Result is an FaceAuthenticationResult class with FaceAuthenticationStatus enum:

class FaceAuthenticationResult {
    FaceAuthenticationStatus faceAuthenticationStatus;
}

Information about the FaceAuthenticationResult faceAuthenticationStatus statuses:

Name	Description
SUCCESS	The user completed face authentication flow and the authentication status, provided by an automated platform, is SUCCESS.
FAILED	The user completed face authentication flow and the authentication status, provided by an automated platform, is FAILED.
EXIT	The user did not complete face authentication flow and the authentication status, provided by an automated platform, is EXIT.

Additional customization

Currently, @idenfy/idenfysdk_flutter_plugin does not provide customization options via Dart code directly. For any additional SDK customization, you need to use the sample in this repository and edit native code inside of the plugin.

We suggest creating a fork of this repository. After editing the code, you can include the plugin in the following way:

dependencies:
  idenfy_sdk_flutter: ^2.5.9
    git: https://github.com/your_repo/FlutterSDK.git

Android customization:

Most common Android customization is changing SDK colors or editing our views. Everything can be achieved by overrding our color names, layouts:

To change the colors:

1. Open your Android application values folder (yourapplication/app/src/main/res/values)
2. Create either a new idenfy_colors.xml or add our defined colors to your existing colors.xml file like so:

<resources>
    <color name="idenfyMainColorV2">#7CFC00</color>
    <color name="idenfyMainDarkerColorV2">#7CFC00</color>
    <color name="idenfySecondColorV2">#000000</color>
    <color name="idenfyBackgroundColorV2">#FFFFFF</color>
</resources>

Our common color names can be found in this repository along with specific screen colors

To edit the Toolbar or change styles (Text sizes, colors) for specific views:

1. Open your Android application values folder (yourapplication/app/src/main/res/values)
   
2. Create either a new idenfy_styles.xml or add our defined styles to your existing styles.xml file like so:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="idenfyAppBarLayoutBackButtonStyle">
        <item name="android:tint">
            @color/idenfyMainColorV2
        </item>
    </style>

    <style name="idenfyAppBarLayoutIdenfyLogoStyle">
        <item name="android:tint">
            @color/idenfyMainColorV2
        </item>
    </style>

    <style name="idenfyAppBarLayoutLanguageSelectionButtonStyle">
        <item name="android:tint">
            @color/idenfyMainColorV2
        </item>
    </style>

    <style name="idenfyAppBarLayoutCloseButtonStyle">
        <item name="android:tint">
            @color/idenfyMainColorV2
        </item>
    </style>

    <style name="idenfyDocumentSelectionViewDescriptionStyle" parent="android:Widget.TextView">
        <item name="android:textColor">@color/idenfyDocumentSelectionViewDescriptionTextColor</item>
        <item name="android:textSize">13sp</item>
    </style>

    <style name="idenfyDocumentSelectionViewDocumentRecyclerViewItemTitleStyle" parent="android:Widget.TextView">
        <item name="android:textColor">
            @color/idenfyDocumentSelectionViewRecyclerViewItemTitleTextColor
        </item>
        <item name="android:textSize">13sp</item>
    </style>

    <style name="idenfyDocumentSelectionViewButtonStyle" parent="android:Widget.Button">
        <item name="android:textColor">
            @color/idenfyDocumentSelectionViewContinueButtonDisabledTextColor
        </item>
        <item name="android:textSize">12sp</item>
    </style>
</resources>

All our styles can be found in here.

To edit our layouts:

1. Open or create your Android application layout folder (yourapplication/app/src/main/res/layout) and copy our layout xml files here
   
2. Change the fonts, views however you want. Just make sure you Do not remove ids of the components and keep same layout names, otherwise this will cause runtime crashes or the layouts won't be overridden.

Our layouts can be found here

To edit common IdenfySettings use the IdenfysdkFlutterPlugin.kt file like so:

class IdenfySdkFlutterPlugin: FlutterPlugin, MethodCallHandler, ActivityAware, PluginRegistry.ActivityResultListener {
  /// 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 lateinit var channel : MethodChannel
  private lateinit var activity: Activity
  //Is nullable after proccess death.
  private var mResult: Result?=null

  override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
    channel = MethodChannel(flutterPluginBinding.binaryMessenger, "idenfy_sdk_flutter")
    channel.setMethodCallHandler(this)
  }

  override fun onMethodCall(@NonNull call: MethodCall, @NonNull result: Result) {
    if (call.method == "getPlatformVersion") {
      result.success("Android " + android.os.Build.VERSION.RELEASE);
    } else if (call.method == "start") {
      mResult = result

      //Liveness UI Settings
      val idenfyLivenessUISettingsV2 = IdenfyLivenessUISettings()
      idenfyLivenessUISettingsV2.livenessCancelButtonImage = R.drawable.buttonImage
      idenfyLivenessUISettingsV2.livenessReadyScreenButtonBorderColor = R.color.idenfyBlack
      idenfyLivenessUISettingsV2.livenessFrameWidth = 1

      //Idenfy UI Settings
      val idenfyUISettingsV2 =
        IdenfyUISettingsV2.IdenfyUIBuilderV2()
          .withInstructions(IdenfyInstructionsType.DIALOG)
          .withLivenessUISettings(idenfyLivenessUISettingsV2)
          .withConfirmationView(IdenfyOnBoardingViewTypeEnum.MULTIPLE_STATIC)
          .build()

      //Idenfy Settings
      val idenfySettingsV2 = IdenfySettingsV2.IdenfyBuilderV2()
        .withAuthToken(call.argument<String>("authToken")!!)
        .withIdenfyUISettingsV2(idenfyUISettingsV2)
        .withLogging(IdenfySDKLoggingSettings.IdenfySDKLoggingEnum.FULL)
        .build()

      IdenfyController.getInstance().initializeIdenfySDKV2WithManual(this.activity, IdenfyController.IDENFY_REQUEST_CODE, idenfySettingsV2)
    } else if (call.method == "startFaceAuth") {
      mResult = result
      val faceAuthenticationInitialization = FaceAuthenticationInitialization(call.argument<String>("token")!!, call.argument<Boolean>("withImmediateRedirect")!!)
      IdenfyController.getInstance().initializeFaceAuthenticationSDKV2(this.activity, IdenfyController.IDENFY_REQUEST_CODE, faceAuthenticationInitialization)
    } else {
      //result.notImplemented()
    }
  }

  override fun onDetachedFromEngine(@NonNull binding: FlutterPlugin.FlutterPluginBinding) {
    channel.setMethodCallHandler(null)
  }

  override fun onAttachedToActivity(binding: ActivityPluginBinding) {
    this.activity = binding.activity
    binding.addActivityResultListener(this)
  }

  override fun onDetachedFromActivityForConfigChanges() {
  }

  override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
  }

  override fun onDetachedFromActivity() {
  }

  override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?): Boolean {
    if (requestCode == IdenfyController.IDENFY_REQUEST_CODE) {
      when (resultCode) {
        IdenfyController.IDENFY_IDENTIFICATION_RESULT_CODE -> {
          val idenfyIdentificationResult: IdenfyIdentificationResult = data!!.getParcelableExtra(IdenfyController.IDENFY_IDENTIFICATION_RESULT)!!
          val jsonString = Gson().toJson(idenfyIdentificationResult)
          mResult?.success(jsonString)
        }
        IdenfyController.IDENFY_FACE_AUTHENTICATION_RESULT_CODE -> {
          val faceAuthenticationResult: FaceAuthenticationResult = data!!.getParcelableExtra(IdenfyController.IDENFY_FACE_AUTHENTICATION_RESULT)!!
          val jsonString = Gson().toJson(faceAuthenticationResult)
          mResult?.success(jsonString)
        }
      }
    } else {
      //mResult?.notImplemented()
    }
    return true
  }
}

Fore more extensive customization, please caerfully follow our Android native SDK guide and edit IdenfysdkFlutterPlugin.kt even further.

IOS customization:

Most common IOS customization is changing SDK colors, fonts or providing custom views. For that, here is an example of the SwiftIdenfySdkFlutterPlugin.swift class:

public class SwiftIdenfySdkFlutterPlugin: NSObject, FlutterPlugin {
  public static func register(with registrar: FlutterPluginRegistrar) {
    let channel = FlutterMethodChannel(name: "idenfy_sdk_flutter", binaryMessenger: registrar.messenger())
    let instance = SwiftIdenfySdkFlutterPlugin()
    registrar.addMethodCallDelegate(instance, channel: channel)
  }

    public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
        if call.method == "getPlatformVersion" {
          result("iOS " + UIDevice.current.systemVersion)
        } else if call.method == "start" {
            if let arguments = call.arguments as? [String: Any],
               let authToken = arguments["authToken"] as? String {

                //Changing common iDenfy colors
                IdenfyCommonColors.idenfyMainColorV2 = UIColor.green
                IdenfyCommonColors.idenfyMainDarkerColorV2 = UIColor.green
                IdenfyCommonColors.idenfySecondColorV2 = UIColor.black
                IdenfyCommonColors.idenfyBackgroundColorV2 = UIColor.white
                
                //Customizing Tooblar
                IdenfyToolbarUISettingsV2.idenfyDefaultToolbarLogoIconTintColor = UIColor.blue
                IdenfyToolbarUISettingsV2.idenfyDefaultToolbarBackIconTintColor = UIColor.blue
                IdenfyToolbarUISettingsV2.idenfyLanguageSelectionToolbarLanguageSelectionIconTintColor = UIColor.yellow
                IdenfyToolbarUISettingsV2.idenfyLanguageSelectionToolbarCloseIconTintColor = UIColor.blue
                IdenfyToolbarUISettingsV2.idenfyCameraPreviewSessionToolbarBackIconTintColor = UIColor.white
                
                //Changing specific screen colors (Every screen has its own UI Settings class)
                IdenfyDocumentSelectionViewUISettingsV2.idenfyDocumentSelectionViewBackgroundColor = UIColor.white
                IdenfyDocumentSelectionViewUISettingsV2.idenfyDocumentSelectionViewTitleTextColor = UIColor.black
                IdenfyDocumentSelectionViewUISettingsV2.idenfyDocumentSelectionViewDocumentTableViewCellBorderColor = UIColor.brown
                
                //Changeing specific screen fonts (Every screen has its own UI Settings class)
                IdenfyDocumentSelectionViewUISettingsV2.idenfyDocumentSelectionViewTitleFont = UIFont.systemFont(ofSize: 20)
                IdenfyDocumentSelectionViewUISettingsV2.idenfyDocumentSelectionViewDocumentTypeFont = UIFont.systemFont(ofSize: 14)
                IdenfyDocumentSelectionViewUISettingsV2.idenfyDocumentSelectionViewDocumentTypeHighlightedFont = UIFont.boldSystemFont(ofSize: 14)
                
                //Changing face liveness UI colors
                let livenessSettings = IdenfyLivenessUISettings()
                livenessSettings.livenessFrameColor = UIColor.red
                livenessSettings.livenessIdentificationOvalProgressColor1 = UIColor.white
                livenessSettings.livenessIdentificationOvalProgressColor2 = UIColor.white
                livenessSettings.livenessFeedbackBackgroundColor = UIColor.green
                livenessSettings.livenessFrameBackgroundColor = UIColor.yellow
                livenessSettings.livenessReadyScreenForegroundColor = UIColor.gray
                livenessSettings.livenessReadyScreenBackgroundColors = [UIColor.blue]
                livenessSettings.livenessReadyScreenTextBackgroundColor = UIColor.systemPink
                livenessSettings.livenessReadyScreenButtonBorderColor = UIColor.red
                livenessSettings.livenessReadyScreenButtonBackgroundNormalColor = UIColor.orange
                livenessSettings.livenessReadyScreenButtonBackgroundHighlightedColor = UIColor.blue
                livenessSettings.livenessReadyScreenButtonBackgroundDisabledColor = UIColor.black
                livenessSettings.livenessResultScreenForegroundColor = UIColor.red
                livenessSettings.livenessResultScreenIndicatorColor = UIColor.yellow
                livenessSettings.livenessResultScreenUploadProgressFillColor = UIColor.green
                livenessSettings.livenessResultScreenUploadProgressTrackColor = UIColor.black
                livenessSettings.livenessIdentificationProgressStrokeColor = UIColor.blue

                //Configuring IdenfyUISettings
                let idenfyUISettingsV2 = IdenfyUIBuilderV2()
                    .withInstructions(IdenfyInstructionsEnum.dialog)
                    .withLivenessUISettings(livenessSettings)
                    .withOnBoadringViewType(IdenfyOnBoardingViewTypeEnum.multipleStatic)
                    .withIdenfyDocumentSelectionType(IdenfyDocumentSelectionTypeEnum.navigateOnContinueButton)
                    .withImmediateRedirect(ImmediateRedirectEnum.none)
                    .build()

                //Configuring IdenfySettings
                let idenfySettingsV2 = IdenfyBuilderV2()
                    .withAuthToken(authToken)
                    .withUISettingsV2(idenfyUISettingsV2)
                    .build()

                //Passsing custom views to the SDK (Every screen has a Viewable, a protocol your custom view must adopt)
                let idenfyViewsV2: IdenfyViewsV2 = IdenfyViewsBuilderV2()
                    .withSplashScreenV2View(SplashScreenV2View())
                    .withProviderSelectionView(ProviderSelectionViewV2())
                    .withProviderCellView(ProviderCell.self)
                    .withProviderLoginView(ProviderLoginViewV2())
                    .withMFAMethodSelectionView(MFAMethodSelectionViewV2())
                    .withMFAGeneralView(MFAGeneralViewV2())
                    .withMFACaptchaView(MFACaptchaViewV2())
                    .withNFCRequiredView(NFCRequiredViewV2())
                    .withIssuedCountryView(IssuedCountryViewV2())
                    .withCountrySelectionView(CountrySelectionViewV2())
                    .withCountryCellView(CountryCell.self)
                    .withLanguageSelectionView(LanguageSelectionViewV2())
                    .withLanguageCellView(LanguageCell.self)
                    .withDocumentSelectionView(DocumentSelectionViewV2())
                    .withDocumentCellView(DocumentCell.self)
                    .withConfirmationView(ConfirmationViewV2())
                    .withDynamicCameraOnBoardingView(DynamicCameraOnBoardingViewV2())
                    .withStaticCameraOnBoardingView(StaticCameraOnBoardingViewV2())
                    .withCameraOnBoardingInstructionDescriptionsCellView(InstructionDescriptionsCellV2.self)
                    .withConfirmationViewDocumentStepCellView(DocumentStepCell.self)
                    .withCameraPermissionView(CameraPermissionViewV2())
                    .withDrawerContentView(DrawerContentViewV2())
                    .withUploadPhotoView(UploadPhotoViewV2())
                    .withDocumentCameraView(DocumentCameraViewV2())
                    .withCameraWithRectangleResultViewV2(DocumentCameraResultViewV2())
                    .withPdfResultView(PdfResultViewV2())
                    .withFaceCameraView(FaceCameraViewV2())
                    .withCameraWithoutRectangleResultViewV2(FaceCameraResultViewV2())
                    .withNFCReadingView(NFCReadingViewV2())
                    .withNFCReadingTimeOutView(NFCReadingTimeOutViewV2())
                    .withIdentificationResultsView(IdentificationResultsViewV2())
                    .withIdentificationResultsStepCellView(ResultsStepCell.self)
                    .withIdentificationSuccessResultsView(IdentificationSuccessResultsViewV2())
                    .withIdentificationSuspectedResultsView(IdentificationSuspectedResultsViewV2())
                    .withManualReviewingStatusWaitingView(ManualReviewingStatusWaitingViewV2())
                    .withManualReviewingStatusFailedView(ManualReviewingStatusFailedViewV2())
                    .withManualReviewingStatusApprovedView(ManualReviewingStatusApprovedViewV2())
                    .withAdditionalSupportView(AdditionalSupportViewV2())
                    .withFaceAuthenticationSplashScreenV2View(FaceAuthenticationSplashScreenV2View())
                    .withFaceAuthenticationResultsViewV2(FaceAuthenticationResultsViewV2())
                    .build()

                let idenfyController = IdenfyController.shared
                idenfyController.initializeIdenfySDKV2WithManual(idenfySettingsV2: idenfySettingsV2, idenfyViewsV2: idenfyViewsV2)
                let idenfyVC = idenfyController.instantiateNavigationController()

                UIApplication.shared.keyWindow?.rootViewController?.present(idenfyVC, animated: true, completion: nil)

                idenfyController.handleIdenfyCallbacksWithManualResults(idenfyIdentificationResult: {
                    idenfyIdentificationResult
                    in
                    do {
                        let jsonEncoder = JSONEncoder()
                        let jsonData = try jsonEncoder.encode(idenfyIdentificationResult)
                        let string = String(data: jsonData, encoding: String.Encoding.utf8)
                        result(string)
                    } catch {
                    }
                })
            }
        } else if call.method == "startFaceAuth" {
            if let arguments = call.arguments as? [String: Any],
               let withImmediateRedirect = arguments["withImmediateRedirect"] as? Bool,
               let authenticationToken = arguments["token"] as? String {
            let idenfyController = IdenfyController.shared
            let faceAuthenticationInitialization = FaceAuthenticationInitialization(authenticationToken: authenticationToken, withImmediateRedirect: withImmediateRedirect)
            idenfyController.initializeFaceAuthentication(faceAuthenticationInitialization: faceAuthenticationInitialization)
            let idenfyVC = idenfyController.instantiateNavigationController()

            UIApplication.shared.keyWindow?.rootViewController?.present(idenfyVC, animated: true, completion: nil)
            
            idenfyController.handleIdenfyCallbacksForFaceAuthentication(faceAuthenticationResult: { faceAuthenticationResult in
                do {
                    let jsonEncoder = JSONEncoder()
                    let jsonData = try jsonEncoder.encode(faceAuthenticationResult)
                    let string = String(data: jsonData, encoding: String.Encoding.utf8)
                    result(string)
                } catch {
                }
            })
            }
        }
    }
}

UISettings classes for the rest of the screens can be found in our repository.

Fore more extensive customization, please caerfully follow our IOS native SDK guide and edit SwiftIdenfysdkFlutterPlugin.swift even further.

SDK Integration tutorials

For more information visit: IOS SDK integration tutorial and Android SDK integration tutorial