Discrete SeekBar in Kotlin

package org.geeksforgeeks.demo

import android.os.Bundle
import android.widget.SeekBar
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        //accessing the seekbar from our layout
        val seekBar: SeekBar = findViewById(R.id.seek)

        seekBar.setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener {
            override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
                // add functionalities for when progress is changed
            }

            override fun onStartTrackingTouch(seekBar: SeekBar) {
                // add functionalities for when the user starts touching the seekbar
            }

            override fun onStopTrackingTouch(seekBar: SeekBar) {
                //  add functionalities for when the user stops touching the seekbar
                Toast.makeText(this@MainActivity, "Value: " + seekBar.progress, Toast.LENGTH_SHORT).show()
            }
        })
    }
}