Android spinner hint value

Activity.kt

val spinnerAdapter = PenaltyReasonSpinnerAdapter(this, penaltyReasonsList!!)

spinnerAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
penaltyReasonSpinner.adapter = spinnerAdapter
penaltyReasonSpinner.onItemSelectedListener = this

....

override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
        // ilk eleman "lütfen seçiniz" şeklinde olduğu için 0. indexi pass geçtik
        if (position > 0) {
            Log.e("REASON", penaltyTypesList?.get(position)?.penalty_id.toString())
        }
    }

....
  // Spinnerda seçim yapmadan "lütfen seçiniz" seçeneği getirmek için bu eleman eklendi
penaltyReasonsList?.add(getString(R.string.select_penalty_reason))

SpinnerAdapter.kt

class PenaltyReasonSpinnerAdapter(context: Context, list: List<String>) :
    ArrayAdapter<String>(context, android.R.layout.simple_spinner_item, list) {

    override fun getDropDownView(position: Int, convertView: View?, parent: ViewGroup): View {
        val view = super.getDropDownView(position, convertView, parent)
        val tv = view as TextView
        if (position === 0) {
            // Set the hint text color gray
            tv.setTextColor(Color.GRAY)
        } else {
            tv.setTextColor(Color.BLACK)
        }
        return view
    }

    override fun isEnabled(position: Int): Boolean {
        return when(position) {
            0 -> false
            else -> true
        }
    }
}