Android Mobile SDK

Introduction

Arkose Labs' mobile SDKs let you wrap our solution with Android native function calls. This guarantees seamless integration of your mobile apps with Arkose's full interactive challenges on detection and enforcement and does so without the extended wait times for separate mobile solutions.

This page covers the Mobile SDK for Android. If you are developing in iOS, see the Mobile SDK for iOS page.

The Arkose Mobile SDK for iOS:

• Wraps Arkose's Advanced Enforcement Challenge in native Android OS "Web View"

• Has 1-to-1 feature availability between web and mobile solutions.

• Integrates with your apps through native functions.

• Handles errors through callback events.

• Complies with Arkose Internal Security guidelines.

• Complies with Google Play Store guidelines for ease of integration.

• Is fully compatible with new Enforcement Challenge-API (EC-API) releases.

• Supports minimum version Android OS 6.0.

Mobile SDK High Level Design

Mobile SDK Builds Availability

The Arkose Labs Mobile SDKs are available via the Mobile SDK's Support page. Please talk with your CSM (Customer Success Manager) about your intended usage and request access.

Compatibility

The Arkose Labs Mobile SDK for Android works with Android 5.1 and up.

All existing detection and challenge features on our web solutions are also available on the Mobile SDKs. All new ones are automatically added; you don't need to update your application every time we release a new Web platform. All challenge updates can be done without updating the SDKs or releasing a new version of your application.

Security

The Arkose Labs Mobile SDKs are Arkose Labs Security reviewed and comply with Google Play Store guidelines.

Performance

We created the Arkose Labs Mobile SDKs with stability and performance in mind. Their use has no significant impact on the host application’s performance.

Installation

Follow the steps below to set up Arkose Labs Mobile SDK for Android in Android Studio in your host application. This applies to both Arkose Detect and Arkose Protect.

Prerequisites

• A host Android application. You must be able to build and run this application.

• For the full end-to-end Arkose setup, you must also complete the standard Arkose Server-Side setup instructions.

Integration Steps

Set up development file

1. Under src/main, create a libs folder.

2. Copy your .aar file to src/main/libs

3. In the app level build.gradle file, add this line to its dependencies block.

implementation fileTree(dir: "libs", include: ["*.aar"])
implementation 'androidx.biometric:biometric:1.2.0-alpha04'

4. In the toolbar, click on File. Then in its menu click Sync Project with Gradle Files.

Import and add Arkose code to your application

1. Import the necessary SDK classes. Add the below code in your main file, right after you import your android and androidx classes and before your class definition statements.

import com.arkoselabs.sdk.ArkoseChallenge;
import com.arkoselabs.sdk.ArkoseConfig;
import com.arkoselabs.sdk.ArkoseManager;

2. Update Android proguard or R8 rules to keep all the classes under com.arkoselabs.sdk.*

   -keep public class com.arkoselabs.sdk.**
   

3. In the main screen activity section (Under src/main/java), in the onCreate method of the activity, initialize the SDK with ArkoseConfig object with API URL, API Key and other parameters

// Build the configuration object
final ArkoseConfig arkoseConfig = new ArkoseConfig.Builder()
  .apiKey(SPECIFY_YOUR_API_KEY)
  .blobData("") //encrypted blob data (optional)
  .loading(true) // setting this to false will not show the default loading spinner
  .enableBackButton(true) // To disable/enable device back button in EC process. Default is 'true'
  .language("") // Can set language here (optional).
  // This to set animation while EC will be loading.
  // You can use ALSDK_Animation.<AnimStyle>.ordinal() OR 
  // can set your own custom animation by putting value R.anim.<AnimStyle>
  .viewFrameAnimation(R.anim.custom_animation) 
  .build();

// Set the log level
ArkoseManager.setLogLevel(ArkoseManager.INFO);

// Initialize the SDK
// For v2.0.0 SDK
//ArkoseManager.initialize(arkoseConfig);

// For v2.1.0 SDK
ArkoseManager.initialize(arkoseConfig, getApplication());

4. If you want to add your own custom animation, then the value of viewFrameAnimation will be R.anim.<CustomAnimStyle>. The CustomAnimStyle is your animation xml file.
   We provide a number of inbuilt animations in the Mobile SDK. Use the desired animation style by replacing the <AnimStyle> in ALSDK_Animation.<AnimStyle>.ordinal() parameter. ** ordinal() method returns the ordinal of this enumeration constant (its position in its enum declaration, where the initial constant is assigned an ordinal of zero).
   1. BLINK
   2. FADE
   3. SCALE_CENTER
   4. SEQUENTIAL
   5. SLIDE_DOWN
   6. SLIDE_LEFT
   7. SLIDE_RIGHT
   8. SLIDE_UP
   9. ZOOM_IN
   10. ZOOM_OUT
5. To show the Enforcement View from the onClick() method of the Login Button, call showEnforcementChallenge method with FragmentActivity as its parameter. This will run Arkose Detect (when running Arkose Protect, it also runs Arkose’s Enforcement Challenge). Fill in the method definitions with what you want to happen when that method is invoked as described in the comments. Note there are separate code examples for Arkose Detect and Arkose Protect.

ArkoseChallenge arkoseChallenge = ArkoseManager.showEnforcementChallenge(this);
arkoseChallenge.
        .addOnSuccessListener(arkoseChallengeResponse -> {
            // invoked On Enforcement Challenge success
         })
         
        .addOnFailureListener(arkoseChallengeResponse -> {
            // invoked on Enforcement Challenge failed
        })
        
        .addOnErrorListener(arkoseChallengeResponse -> {
             // invoked on getting error while loading EC
        })

        .addOnResizeListener(arkoseChallengeResponse -> {
             // Provides the width and height of the visible EC from an SDK call
             // While you cannot set the width and height values yourself, 
             // you can make use of their new values from the resizing 
             // as you'd like, such as putting them in a log entry.
        })
        
        .addOnReadyListener(() -> {
              //Do Something on ready callback received
        })
        
        .addOnShowListener(() -> {
              //Do Something on show callback received
        })
        
        .addOnShownListener(() -> {
              //Do Something on shown callback received
        })
        
        .addOnHideListener(() -> {
              //Do Something on hide callback received
        })
        
        .addOnResetListener(() -> {
              //Do Something on reset callback received 
        })

        .addOnViewFramePosition(arkoseChallengeResponse -> {
              // Do Something to set the position of view frame
              // Example:
              // arkoseECResponse.getWindow().getAttributes().gravity = Gravity.BOTTOM;
              // arkoseECResponse.getWindow().getAttributes().width = ViewGroup.LayoutParams.MATCH_PARENT;
          })
        
        .addOnSuppressListener(() -> {
              //Do Something on suppress callback received
            }
        });

ArkoseLabs.getActivityClient(this).ShowEnforcementChallenge(arkoseConfig)
        .addOnSuccessListener(new OnCompleteListener < ArkoseECResponse > () {
            @Override
            public void onComplete(ArkoseECResponse arkoseEnforcementChallengeResponse) {
                // invoked On Detection success
            }
         })
         
        .addOnErrorListener(new OnErrorListener<ArkoseECResponse>() {
            @Override
            public void onError(ArkoseECResponse arkoseECResponse) {
             // invoked on getting error while loading detection
            }
        })
        
        .addOnReadyListener(new OnReadyListener() {
            @Override
            public void onReady() {
              //Do Something on ready callback received
            }
        })
        
        .addOnShowListener(new OnShowListener() {
            @Override
            public void onShow() {
              //Do Something on show callback received
            }

        .addOnHideListener(new OnHideListener() {
            @Override
            public void onHide() {
              //Do Something on hide callback received
            }
        })
                
        .addOnSuppressListener(new OnSuppressListener() {
            @Override
            public void onSuppress() {
              //Do Something on suppress callback received
            }
        });

6. To create a view Fragment that can be embedded in another activity, use ArkoseLabs.createEnforcementChallenge() method which returns an instance of ArkoseChallenge. This will create and set up a view Fragment which can be accessed using the method ArkoseChallenge.getEnforcementChallengeFragment. The example below shows how you can create the ArkoseLabs challenge view Fragment and embed it into your app's activity.

// Create Arkose challenge fragment
ArkoseChallenge arkoseChallenge = ArkoseManager.createEnforcementChallenge();
arkoseChallenge
        .addOnSuccessListener(arkoseChallengeResponse -> {
            // invoked On Enforcement Challenge success
         })
        .addOnFailureListener(arkoseChallengeResponse -> {
            // invoked on Enforcement Challenge failed
        });
         // Add other listeners as needed

// Add the fragment to the activity
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.replace(R.id.frameLayout, arkoseChallenge.getEnforcementChallengeFragment());
ft.commit();

Build the revised project

1. Go to the Build menu and click on Clean Project.

2. Go to the Build menu and click on Rebuild Project.

Run and test the app

1. Run your Android application.

2. 1. If running Arkose Protect, the view shows an Arkose Labs Enforcement Challenge.
   2. If running Arkose Detect, the view runs Arkose Labs Detect.

3. If running Arkose Protect, verify the challenge.

4. When the verification or detection is successful, the onComplete event returns a response token. The following sample code shows what this should look like and what to do with the token. Note there are separate code samples for Arkose Detect and Arkose Protect.

.addOnSuccessListener(arkoseChallengeResponse -> {
  // invoked On Enforcement Challenge success
  String userResponseToken = arkoseChallengeResponse.getResponse().toString();
  // Get value of the token
  String userResponseToken = arkoseChallengeResponse.getResponse().getString("token");
  Log.i(TAG,"Arkose EC complete: " + userResponseToken);
  // sendToBackendServer(userResponseToken);
})

public void onComplete(ArkoseECResponse arkoseECResponse) {
  String userResponseToken = arkoseECResponse.getResponse().toString();
  // Get value of the token
  String userResponseToken = arkoseECResponse.getResponse().getString("token");
  Log.i(TAG,"Arkose Detection complete: " + userResponseToken);
  // sendToBackendServer(userResponseToken);
}

ArkoseConfig Configuration

Note that Arkose Detect is part of our overall Arkose Protect detection and enforcement platform. Thus the names of some methods and variables refer only to enforcement when actually dealing with detection as well. Unless otherwise specified, the configuration components apply to both Arkose Detect and Arkose Protect, although perhaps in different ways as specified.

Enforcement Challenge Configuration Parameters / strings.xml

You can change the following Enforcement Challenge configuration parameters by specifying their values in the ArkoseConfig object.

Logging and Troubleshooting

Prerequisites

1. Install the Android Debug Bridge (adb) binary or driver on the machine where the logs will go.

2. An Android phone or Android emulator. On it, under Settings > Developer, enable the USB Debugging option

Steps

On the machine where the logs will go:

1. Download the SDK platform for your platform (Windows / Mac) from SDK Platform Tools release notes | Android Developers

2. Unzip the folder and check it contains an adb.exe file.

3. From the command prompt, enter the path where adb is located on the machine. This image shows an example of what you get after you enter the path.

4. On your Android device, enable USB debugging:

   1. At Phone>Settings>About Phone>, tap Build Number seven times. You should see a message saying that you are now a developer.

   2. On the device, go to Developer options and turn on USB debugging.

   3. Connect the device to the system and trust/allow the system.

   4. To test if adb is working properly:

      1. Use a USB cable to connect your Android device to your computer.

      2. At the computer’s command prompt, run the command adb devices to show the devices connected to the system.

5. To start verbose logging in the terminal window, at the computer’s command prompt, run adb logcat -s ArkoseLabsShowEnforcementChallenge:v If instead, you want to save the logs, run adb logcat -d > <path-where-you-want-to-save-file>/<filename>.txt Ctrl+C stops the logging.

adb logcat Options

adb logcat has several command options. These include:

• adb logcat : Prints log data to the screen.

• adb logcat *:V : Lowest priority, filter to only show Verbose level log entries.

• adb logcat --help : Shows all logcat options and arguments.

• adb logcat -c : Clears the logs .

• adb logcat -s <TAG>:<PRIORITY> :

  • -s: Sets default filter to silent.

  • <TAG>: A log component tag (or * for all).

  • <PRIORITY> can be:

    • V: Verbose (default for <TAG>)

    • D: Debug (default for *)

    • I: Info

    • W: Warn

    • E: Error

    • F: Fatal

    • S: Silent (suppress all output)