For offline usage OfflineLivenessFragment is required, it will return results straight from the liveness engine.

OfflineLivenessFragment has the following dependencies :

• OfflineLivenessFragment.LivenessListener –  A listener that will provide a response of once liveness has been completed
• Configuration – Configuration of the liveness engine

Setting up OfflineLivenessFragment

Java

OfflineLivenessFragment livenessFragment = new OfflineLivenessFragment(offlineLivenessListener,
                      configuration); //optional 

Kotlin

val livenessFragment = OfflineLivenessFragment(offlineLivenessListener,
                      configuration) //optional 

Kotlin

private val offlineLivenessListener: LivenessListener = object : LivenessListener {
    override fun onAggregatedResult(result: AggregatedResult) {)
        // Will return final result
    }
 
    override fun onActionEventAudit(audit: ActionResultState) {
        // Will return each action final result.
    }
 
    override fun onNewImage(bitmap: Bitmap) {
        // Will return images dedicated for Face Match result.
    }
 
    override fun onError(livenessError: ScannerError) {
        // Will return on error object of Scanner.
    }
}