Swift - Generate an Address Format from Reverse Geocoding

Question

I am trying to generate a Formatted Full address using CLGeocoder in Swift 3. I referred to this SO thread to get the code given below.

However, sometimes the app crashe

Answer 1

CLGeocoder().reverseGeocodeLocation(CLLocation(latitude: vehicleLocation.latitude, longitude: vehicleLocation.latitude), completionHandler: {(placemarks, error) -> Void in

  guard error == nil else {completionHandler(nil); return}

  guard let place = placemarks else {completionHandler(nil); return}

  if place.count > 0 {
    let pm = place[0]

    var addArray:[String] = []
    if let name = pm.name {
      addArray.append(name)
    }
    if let thoroughfare = pm.thoroughfare {
      addArray.append(thoroughfare)
    }
    if let subLocality = pm.subLocality {
      addArray.append(subLocality)
    }
    if let locality = pm.locality {
      addArray.append(locality)
    }
    if let subAdministrativeArea = pm.subAdministrativeArea {
      addArray.append(subAdministrativeArea)
    }
    if let administrativeArea = pm.administrativeArea {
      addArray.append(administrativeArea)
    }
    if let country = pm.country {
      addArray.append(country)
    }
    if let postalCode = pm.postalCode {
      addArray.append(postalCode)
    }

    let addressString = addArray.joined(separator: ",\n")

    print(addressString)

    completionHandler(addressString)
  }
  else { completionHandler(nil)}
})