MainActivity.kt

class MainActivity : AppCompatActivity() {
    //Map that will contain a key-value combination of detected items
    private val itemMap by lazy {
        hashMapOf<String, Int>()
    }
    
    override fun onCreate(savedInstanceState: Bundle?) {
        val objectPredictor = FritzVisionObjectPredictor.getInstance(this)
        var fritzVisionImage: FritzVisionImage
        cameraView.addFrameProcessor { frame ->
            //Rest of the code
            fritzVisionImage = FritzVisionImage.fromBitmap(bitmapOut)
            //Get a list of items that were detected in the Image
            val visionObjects = objectPredictor.predict(fritzVisionImage)
            
            //Clear the existing map
            itemMap.clear()

            //Convert the list of objects detected into a Map so that we can track count of similar items
            visionObjects.forEach { visionObject ->
                if (itemMap.containsKey(visionObject.visionLabel.text))
                    itemMap[visionObject.visionLabel.text] = itemMap[visionObject.visionLabel.text]!! + 1
                itemMap[visionObject.visionLabel.text] = 1
            }

            //Print the detected items on the screen
            runOnUiThread {
                tvDetectedItem.text = ""
                itemMap.forEach { map ->
                    tvDetectedItem.append("Detected ${map.value} ${map.key}\n")
                }
            }
    }
}