Dispatching amplitude values to view

MainActivity.kt

class MainActivity : AppCompatActivity() {

    private val handler = Handler(Looper.getMainLooper())

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

        val dynamic = findViewById<DynamicView>(R.id.dynamic1)
        val button = findViewById<Button>(R.id.button)
        
        button.setOnClickListener {

            button.isEnabled = false

            for (i in 0 until 100) {
                handler.postDelayed({
                    val ampl = Random.nextFloat() * 1200
                    dynamic.setAmplitude(ampl)
                    if (i == 99) {
                        button.isEnabled = true

                        dynamic.setAmplitude(500f)
                    }
                }, i * 100L)
            }
        }
    }
}