TextWatcher test in kotlin

package com.example.testtextwatcher

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import com.example.testtextwatcher.databinding.ActivityMainBinding
import android.text.TextWatcher
import android.text.Editable

class MainActivity : AppCompatActivity() {
    private lateinit var binding: ActivityMainBinding

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)

        val view = binding.root
        setContentView(view)

        var entrada =binding.editTextNumberDecimal
        var salida=binding.textView

        //texto.setText("algo") //Escritura en el EditText

        //TestWatcher A
        //Anado un Textwatcher a la entrada un "EditText"
        entrada.addTextChangedListener(object : TextWatcher {
            var textoLocal=""

            override fun afterTextChanged(s: Editable) {}

            override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {}

            override fun onTextChanged(s: CharSequence, start: Int,before: Int, count: Int) {
                //Cuando el texto cambia afecto un textView de salida
                salida.setText("Texto en el EditText : " + s)
                textoLocal=s.toString()
                if (textoLocal.isNotEmpty()){ //Si la cadena no esta vacia
                    if (textoLocal.toInt()>255){ //Si es mayor a 255

                        entrada.setText("0")//La seteas a 0
                    }
                }
            }
        })
        //TestWatcher B
    }
}