In my code, a user enters their address, and gets the coordinates of that address in return. These coordinates should get saved to user defaults. Then, these coordinates are accessed by another view, and a mapView with a pin of the user's address is shown.
ViewController 1
@IBOutlet var geocodeButton: UIButton!
@IBAction func geocode(_ sender: UIButton) {
guard let country = countryTextField.text else { return }
guard let street = streetTextField.text else { return }
guard let city = cityTextField.text else { return }
// Create Address String
let address = "\(country), \(city), \(street)"
// Geocode Address String
geocoder.geocodeAddressString(address) { (placemarks, error) in
// Process Response
self.processResponse(withPlacemarks: placemarks, error: error)
}
// Update View
geocodeButton.isHidden = true
activityIndicatorView.startAnimating()
}
private func processResponse(withPlacemarks placemarks: [CLPlacemark]?, error: Error?) {
// Update View
geocodeButton.isHidden = false
activityIndicatorView.stopAnimating()
if let error = error {
print("Unable to Forward Geocode Address (\(error))")
locationLabel.text = "Unable to Find Location for Address"
} else {
var location: CLLocation?
if let placemarks = placemarks, placemarks.count > 0 {
location = placemarks.first?.location
}
if let location = location {
let coordinate = location.coordinate
locationLabel.text = "\(coordinate.latitude), \(coordinate.longitude)"
UserDefaults.setValue(coordinate.latitude, forKey: "lat")
UserDefaults.setValue(coordinate.longitude, forKey: "long")
} else {
locationLabel.text = "No Matching Location Found"
}
}
}
extension String {
var doubleValue: Double {
return Double(self) ?? 0
}
}
View Controller 2:
override func viewDidLoad() {
super.viewDidLoad()
if let latitude = UserDefaults.value(forKey: "lat") as? Double{
coordinate1.latitude = lat
}
if let longitude = UserDefaults.value(forKey: "lat") as? Double{
coordinate1.longitude = long
}
When I try to run this, I get an error:
Thread 1: "[<NSUserDefaults 0x1dad81bd0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key lat."
Please help me solve this issue soon, thanks!
