Hi there
Here is the complete View Controller page - which compilles in Swift 2
import UIKit
import MapKit
import CoreLocation
class ViewController: UIViewController {
@IBOutlet weak var sourceField: UITextField!
@IBOutlet weak var destinationField1: UITextField!
@IBOutlet weak var destinationField2: UITextField!
@IBOutlet weak var topMarginConstraint: NSLayoutConstraint!
@IBOutlet var enterButtonArray: [UIButton]!
var originalTopMargin: CGFloat!
let locationManager = CLLocationManager()
var locationTuples: [(textField: UITextField!, mapItem: MKMapItem?)]!
var locationsArray: [(textField: UITextField!, mapItem: MKMapItem?)] {
var filtered = locationTuples.filter({ $0.mapItem != nil })
filtered += [filtered.first!]
return filtered
}
override func viewDidLoad() {
super.viewDidLoad()
originalTopMargin = topMarginConstraint.constant
locationTuples = [(sourceField, nil), (destinationField1, nil), (destinationField2, nil)]
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
if CLLocationManager.locationServicesEnabled() {
locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters
locationManager.requestLocation()
}
}
override func viewWillAppear(animated: Bool) {
navigationController?.navigationBarHidden = true
}
@IBAction func getDirections(sender: AnyObject) {
view.endEditing(true)
performSegueWithIdentifier("show_directions", sender: self)
}
override func shouldPerformSegueWithIdentifier(identifier: String, sender: AnyObject?) -> Bool {
if locationTuples[0].mapItem == nil ||
(locationTuples[1].mapItem == nil && locationTuples[2].mapItem == nil) {
showAlert("Please enter a valid starting point and at least one destination.")
return false
} else {
return true
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let directionsViewController = segue.destinationViewController as! DirectionsViewController
directionsViewController.locationArray = locationsArray
}
@IBAction func addressEntered(sender: UIButton) {
view.endEditing(true)
let currentTextField = locationTuples[sender.tag-1].textField
CLGeocoder().geocodeAddressString(currentTextField.text!,
completionHandler: {(placemarks: [CLPlacemark]?, error: NSError?) -> Void in
if let placemarks = placemarks {
var addresses = [String]()
for placemark in placemarks {
addresses.append(self.formatAddressFromPlacemark(placemark))
}
self.showAddressTable(addresses, textField:currentTextField,
placemarks:placemarks, sender:sender)
} else {
self.showAlert("Address not found.")
}
})
}
func showAddressTable(addresses: [String], textField: UITextField,
placemarks: [CLPlacemark], sender: UIButton) {
let addressTableView = AddressTableView(frame: UIScreen.mainScreen().bounds, style: UITableViewStyle.Plain)
addressTableView.addresses = addresses
addressTableView.currentTextField = textField
addressTableView.placemarkArray = placemarks
addressTableView.mainViewController = self
addressTableView.sender = sender
addressTableView.delegate = addressTableView
addressTableView.dataSource = addressTableView
view.addSubview(addressTableView)
}
func formatAddressFromPlacemark(placemark: CLPlacemark) -> String {
return (placemark.addressDictionary!["FormattedAddressLines"] as! [String]).joinWithSeparator(", ")
}
@IBAction func swapFields(sender: AnyObject) {
swap(&destinationField1.text, &destinationField2.text)
swap(&locationTuples[1].mapItem, &locationTuples[2].mapItem)
swap(&self.enterButtonArray.filter{$0.tag == 2}.first!.selected, &self.enterButtonArray.filter{$0.tag == 3}.first!.selected)
}
func showAlert(alertString: String) {
let alert = UIAlertController(title: nil, message: alertString, preferredStyle: .Alert)
let okButton = UIAlertAction(title: "OK",
style: .Cancel) { (alert) -> Void in
}
alert.addAction(okButton)
presentViewController(alert, animated: true, completion: nil)
}
/
/
func moveViewUp() {
if topMarginConstraint.constant != originalTopMargin {
return
}
topMarginConstraint.constant -= 165
UIView.animateWithDuration(0.3, animations: { () -> Void in
self.view.layoutIfNeeded()
})
}
func moveViewDown() {
if topMarginConstraint.constant == originalTopMargin {
return
}
topMarginConstraint.constant = originalTopMargin
UIView.animateWithDuration(0.3, animations: { () -> Void in
self.view.layoutIfNeeded()
})
}
}
extension ViewController: UITextFieldDelegate {
func textField(textField: UITextField,
shouldChangeCharactersInRange range: NSRange,
replacementString string: String) -> Bool {
enterButtonArray.filter{$0.tag == textField.tag}.first!.selected = false
locationTuples[textField.tag-1].mapItem = nil
return true
}
func textFieldDidBeginEditing(textField: UITextField) {
moveViewUp()
}
func textFieldDidEndEditing(textField: UITextField) {
moveViewDown()
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
view.endEditing(true)
moveViewDown()
return true
}
}
extension ViewController: CLLocationManagerDelegate {
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
CLGeocoder().reverseGeocodeLocation(locations.last!,
completionHandler: {(placemarks:[CLPlacemark]?, error:NSError?) -> Void in
if let placemarks = placemarks {
let placemark = placemarks[0]
self.locationTuples[0].mapItem = MKMapItem(placemark:
MKPlacemark(coordinate: placemark.location!.coordinate,
addressDictionary: placemark.addressDictionary as! [String:AnyObject]?))
self.sourceField.text = self.formatAddressFromPlacemark(placemark)
self.enterButtonArray.filter{$0.tag == 1}.first!.selected = true
}
})
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
print(error)
}
}
Thank you so much for your help
