kotlin radiogroup,seekbar,edittext

rg.setOnCheckedChangeListener{_,checkedId ->
    when(checkedId){
        R.id.radioButton ->{
 Write[0]=1
 Toast.makeText(this, radioButton.text.toString(),
 Toast.LENGTH_SHORT).show()
 }
 R.id.radioButton2 ->{
 Write[0]=2
 Toast.makeText(this, radioButton2.text.toString(),
 Toast.LENGTH_SHORT).show()
 }
 }
}
seekBar?.setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener {
 override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
 // Write code to perform some action when progress is changed.
 editText.setText(seekBar.progress.toString())
 }

 override fun onStartTrackingTouch(seekBar: SeekBar) {
 // Write code to perform some action when touch is started.
 }

 override fun onStopTrackingTouch(seekBar: SeekBar) {
 // Write code to perform some action when touch is stopped.

 Toast.makeText(this@MainActivity, seekBar.progress.toString() , Toast.LENGTH_SHORT).show()
 }
})
editText.addTextChangedListener(object : TextWatcher{
 override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {

 }

 override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
 }

 override fun afterTextChanged(s: Editable?) {
 seekBar.setProgress(Integer.parseInt(editText.text.toString()))

 }

})