36.13 Implementing the onGesturePerformed Method

All that remains before an initial test run of the application can be performed is to implement the OnGesturePerformed callback method. This is the method which will be called when a gesture is performed on the GestureOverlayView instance:

package com.ebookfrenzy.customgestures

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import android.widget.Toast

import android.gesture.Gesture

 

class MainActivity : AppCompatActivity(), OnGesturePerformedListener {

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    override fun onGesturePerformed(overlay: GestureOverlayView,

                           gesture: Gesture) {

 

        val predictions = gLibrary?.recognize(gesture)

 

        predictions?.let {

     ...