Add the Extension

First step is always to add the extension to your development environment. To do this use the tutorial located here.

Dependencies

Many of our extensions use some common libraries, for example, the Android Support libraries.

We have to separate these libraries into separate extensions in order to avoid multiple versions of the libraries being included in your application and causing packaging conflicts. This means that you need to include some additional extensions in your application along with the main extension file.

You will add these extensions as you do with any other extension, and you need to ensure it is packaged with your application.

Core

The Core ANE is required by this ANE. You must include and package this extension in your application.

The Core ANE doesn't provide any functionality in itself but provides support libraries and frameworks used by our extensions. It also includes some centralised code for some common actions that can cause issues if they are implemented in each individual extension.

You can access this extension here: https://github.com/distriqt/ANE-Core.

Android Support

The Android Support libraries encompass the Android Support, Android X and common Google libraries.

These libraries are specific to Android. There are no issues including these on all platforms, they are just required for Android.

This extension requires the following extensions:

You can access these extensions here: https://github.com/distriqt/ANE-AndroidSupport.

Note: if you have been using the older com.distriqt.androidsupport.* (Android Support) extensions you should remove these extensions and replace it with the androidx extensions listed above. This is the new version of the android support libraries and moving forward all our extensions will require AndroidX.

Note: The Google Play Services and Android Support ANEs are only required on Android devices. There are no issues packaging these extensions with all platforms as there are default implementations available which will allow your code to package without errors however if you are only building an iOS application feel free to remove the Google Play Services and Android Support ANEs from your application.

Extension IDs

The following should be added to your extensions node in your application descriptor to identify all the required ANEs in your application:

<extensions>
<extensionID>com.distriqt.LocalAuth</extensionID>
<extensionID>com.distriqt.Core</extensionID>
<extensionID>androidx.core</extensionID>
</extensions>

Android

Manifest Additions

Fingerprint Authentication requires the application has the following android permission in your application's manifest additions

<manifest android:installLocation="auto">
<uses-permission android:name="android.permission.USE_FINGERPRINT"/>
</manifest>

iOS

Info Additions

Using FaceID on iOS requires the addition of the FaceID usage string to your info additions:

<key>NSFaceIDUsageDescription</key>
<string>This app uses Face ID to authenticate using facial recognition.</string>

Checking for Support

You can use the isSupported flag to determine if this extension is supported on the current platform and device.

This allows you to react to whether the functionality is available on the device and provide an alternative solution if not.

if (LocalAuth.isSupported)
{
// Functionality here
}