// Obtain the phone number from the result
fun onActivityResult(requestCode:Int, resultCode:Int, data:Intent) {
  super.onActivityResult(requestCode, resultCode, data)
  if (requestCode == RESOLVE_HINT)
  {
    if (resultCode == RESULT_OK)
    {
      val credential = data.getParcelableExtra(Credential.EXTRA_KEY)
      // credential.getId(); <-- will need to process phone number string
    }
  }
}