private class ClickListener(setValue: (Int) -> (Unit), getValue: () -> (Int)) : View.OnClickListener {

    override fun onClick(v: View?) {
            val oldValue = getValue2()
            val newValue = v?.text.toString().toInt()
            if (newValue != oldValue) {
                if (oldValue != 0)
                    textViews[oldValue - 1].run {
                        isSelected = false
                        clearFocus()
                    }
                v?.isSelected = true
                v?.requestFocus()
                setValue(newValue)
            }
    }
}