Trouble returning date from DatePickerDialog fragment

I am trying to return a date selected from my DatePickerDialog. I know there are a few questions about this here on SO and I am sure I have checked for those in my code and I still can't get the date back into my fragment that calls the DatePickerDialog.

I am using the Navigation confonent to show the dialog, could that be what is causing the issue?

Here is my DatePickerDialog:

class DatePickerFragment : DialogFragment(), DatePickerDialog.OnDateSetListener {

    private var onDateSetListener: DatePickerDialog.OnDateSetListener? = null

    fun setListeningActivity(listener: DatePickerDialog.OnDateSetListener) {
        onDateSetListener = listener
    }

    override fun onDateSet(view: DatePicker?, year: Int, month: Int, dayOfMonth: Int) {
        onDateSetListener?.onDateSet(view,year, month, dayOfMonth)
    }

    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
        // Use the current date as the default date in the picker
        val c = Calendar.getInstance()
        val year = c.get(Calendar.YEAR)
        val month = c.get(Calendar.MONTH)
        val day = c.get(Calendar.DAY_OF_MONTH)

        // Create a new instance of DatePickerDialog and return it
        return DatePickerDialog(context, this, year, month, day)
    }
}

Relevant code from the fragment calling the Datepicker:

private fun showDatePicker(hasFocus: Boolean, view: View) {
    Log.i(FRAGMENT_NAME, "Has focus $hasFocus")
    val fragment = DatePickerFragment()
    fragment.setListeningActivity(this)
    if (hasFocus) {
        Navigation.findNavController(view).navigate(R.id.datePickerFragment)
    }
}

override fun onDateSet(view: DatePicker, year: Int, month: Int, day: Int) {
    Log.i(FRAGMENT_NAME, "Date received: $year-$month-$day")
    fragmentView.dateOfBirthField.editText?.setText("$year-$month-$day")
}

This is how I am calling the showDatePicker method:

fragmentView.dateOfBirthField.editText?.setOnFocusChangeListener { _, hasFocus -> showDatePicker(hasFocus, fragmentView) }

Question: How do I get the date back into the Fragment that calls the DatePickerDialog. I do not want to have the DatePickerDialog as an internal class to the class that calls it.

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