Hey everyone, I wanted to ask you guys a question. I'm trying to build an app that shows buses routes. For instance, let's say that Blue Bus is going to Cupertino St but the bus I see coming right now (the Red Bus) is going to Palo Alto St, which is a block away from Cupertino Street.  I'd better off taking the Red Bus which goes a bit out of way than waiting 10 or more minutes for the right bus (Here, the Blue Bus). Ok, that's what I'm trying to do.  How do I want to do this? I'm thinking of drawing the lines of each specific bus route on the map of the app. So I can look at the app and know the routes, be able to zoom in or zoom out, and etc. I don't need to do directions, time, buses, etc. It should be relatively simple.  Any thoughts? I'm not sure how to draw the buses routes. Thank you!!!

My goal here is to have two users communicating with each other, one of which is coming towards the other one (for the sake of simplicity we'll call moovy the moving one and waity the one's who's waiting). Moovy needs to keep updated waity on the amount of time and distance left to reach him. Since waity might actually be waiting not only him but more than one user, I preferred to leave the calculation of the remaining time and distance on moovy's device and keep track of it on firebase's realtime database, while waity's device will be listening on a list of 'incoming users' To update firebase's real time database I put the 'calculating' login within the locationManager(didUpdateLocation) So my function looks something like this func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { let directionsRequest: MKDirections.Request = MKDirections.Request()                 directionsRequest.source = MKMapItem(placemark: MKPlacemark(coordinate: CLLocationCoordinate2D(latitude: coordinates.latitude, longitude: coordinates.longitude), addressDictionary: nil))                 directionsRequest.destination = MKMapItem(placemark: MKPlacemark(coordinate: CLLocationCoordinate2D(latitude: destination, longitude: destination.longitude), addressDictionary: nil))                 directionsRequest.requestsAlternateRoutes = true                 directionsRequest.transportType = .automobile                          let directions = MKDirections(request: directionsRequest)                 var approxTime: Double = 9999                 directions.calculate { [self] (response, error) -> Void in                      guard let response = response else {                          if let error = error {                              print("Error: \(error)")                          }                          return                      }                     if response.routes.count > 0 {                         let route = response.routes[0]                         approxTime = route.expectedTravelTime                         viewModel.updateDestination(destinationUserId: destination.userId, currentUsername: userStore.userData.username, currentUserLocation: locations.last!, approxTime: approxTime, distance: distanceFromChosen ?? 0) { result in                             print(result)                         }                      }                  } Where destination is Waity's location and id, viewModel is in charge of updating the real time database with Moovy's location, distance and time left to the arrival. It works pretty fine for the first 10 seconds or so and then it proceeds to stop updating the time and distance left due to a max calls limit reached on the calculate method Specifically Error: Error Domain=MKErrorDomain Code=3 "Directions Not Available" UserInfo={NSLocalizedFailureReason=Route information is not available at this moment., MKErrorGEOError=-3, MKErrorGEOErrorUserInfo={details = ({  intervalType = short;       maxRequests = 50;            "throttler.keyPath" = "app:com.app.bundleid/0x20200/short(default/any)";timeUntilReset = 33;            windowSize = 60; }); timeUntilReset = 33; }, MKDirectionsErrorCode=3, NSLocalizedDescription=Directions Not Available} Is this the right way to implement the goal I'm trying to achieve. Should I just limit the number of calls with some wait signal or should I use another approach?

How can one prevent auto-zooming with IOS MapKit when using userTrackingMode = .followWithHeading? That is I am setting the current user location to the centre of the screen, and have "view.userTrackingMode = .followWithHeading" so that the map orientates to north, but when you zoom in/out manually the MapView automatically overrides this and zooms back to the level it seems to prefer being at. I was to be able to zoom in, then the zoom level stays like this, whilst it keeps the map centred to user location, and keeps auto-rotating to keep map aligned to north. I am using SwiftUI so have effectively do have the location being passed into GCMapView as a parameter (as the means to keep the SwiftUI GCMapView up to date with latest user location). So not sure if this is causing an issue? Some key bits (have pulled some code out to show relevant lines) of the MapKit call backs I'm using: struct FlightView: View { @EnvironmentObject var locationManager : GCLocationManager @State var centreUserLocation : Bool = false var body: some View { GCMapView( flight: flight, userLocation: locationManager.userLocation, centreUserLocation: centreUserLocation, initalZoomDone: initalZoomDone ) } } struct GCMapView : UIViewRepresentable { let map = MKMapView() func makeUIView(context: Context) -> MKMapView { map.delegate = context.coordinator map.isRotateEnabled = true map.userTrackingMode = .followWithHeading map.showsUserLocation = true return map } func updateUIView(_ view: MKMapView, context: Context) { if let userLocation = userLocation { view.centerCoordinate = userLocation view.userTrackingMode = .followWithHeading // Needed to keep map rotating to align to North } } func makeCoordinator() -> Coordinator { return Coordinator(self) } class Coordinator: NSObject, MKMapViewDelegate { var parent: GCMapView init(_ parent: GCMapView) { self.parent = parent super.init() } } }

I’m trying to make cursor the right way. But it doesn’t work. If I set limit 5, then I can see only 5 records, even I move my finger on the map (I’m using MapKit with CloudKit). If 200 then 200, but have to wait for very long time. I’m sure my cursor is wrong. Who can help me? func getLocation(completed: @escaping (Result<[AppLocation], Error>) -> Void) {      let sortDescriptor = NSSortDescriptor(key: AppLocation.kName, ascending: true)      let query = CKQuery(recordType: RecordType.location, predicate: NSPredicate(value: true))      query.sortDescriptors = [sortDescriptor]      let operation = CKQueryOperation(query: query)      operation.resultsLimit = 5      operation.query = query      operation.queuePriority = .veryHigh      operation.qualityOfService = .userInteractive      var locations = [AppLocation]()            operation.recordFetchedBlock = { record in        let location = AppLocation(record: record)        locations.append(location)      }      operation.queryCompletionBlock = { (cursor, error) in        DispatchQueue.main.async {          if let error = error {            completed(.failure(error))          } else {            completed(.success(locations))          }        }      }      CKContainer.default().publicCloudDatabase.add(operation) }

Hello, I would like to store, save users data inside the app (Best option to store it in the cloud) with location the user reach. The loaction check in point on the map is within radius 100 meters. So the thing I would like to do is to show as a list in the second viewcontroller Zdobyte Szczyty, names of the locations sczyt.name from the first ViewController (the one with the map) that user reached (clicked with a button to check in). I thought about adding a button to the annotation view, which should do the check in if the user is in this radius - but it does not show me the button, just pin. Here is my code: import UIKit import MapKit class ViewController: UIViewController, MKMapViewDelegate{ let locationManager = CLLocationManager() struct Szczyt { let name: String let opis: String let lattitude: CLLocationDegrees let longtitude: CLLocationDegrees var coordinate: CLLocationCoordinate2D { .init(latitude: lattitude, longitude: longtitude) } } @IBOutlet weak var mapView: MKMapView! @IBAction func mapTypeSegmentSelected(_ sender: UISegmentedControl) { switch sender.selectedSegmentIndex { case 0: mapView.mapType = .standard case 1: mapView.mapType = .satellite default: mapView.mapType = .hybrid } } private(set) var circles: [MKCircle]! let szczyty = [Szczyt(name: "one", opis: "describtion", lattitude: 53.865061725039226, longtitude: 17.708595782487315), Szczyt(name: "two", opis: "describtion2", lattitude: 55.893874478583854, longtitude: 24.896341184611302), Szczyt(name: "Skrzyczne", opis: "describtion3", lattitude: 49.685059170137386, longtitude: 19.030076144463138)] override func viewDidLoad() { super.viewDidLoad() mapView.register(MKMarkerAnnotationView.self, forAnnotationViewWithReuseIdentifier: "identifier") checkLocationServices() znajdzSzczytyNaMapie(szczyty) circles = szczyty.map { MKCircle(center: $0.coordinate, radius: 100) } mapView.addOverlays(circles!) mapView.delegate = self } func checkLocationServices() { if CLLocationManager.locationServicesEnabled() { checkLocationAuthorization() } else { // Show alert letting the user know they have to turn this on. } } func checkLocationAuthorization() { switch CLLocationManager.authorizationStatus() { case .authorizedWhenInUse: mapView.showsUserLocation = true case .denied: // Show alert telling users how to turn on permissions break case .notDetermined: locationManager.requestWhenInUseAuthorization() mapView.showsUserLocation = true case .restricted: // Show an alert letting them know what’s up break case .authorizedAlways: break } } func znajdzSzczytyNaMapie(_ szczyty: [Szczyt]) { for szczyt in szczyty { let annotations = MKPointAnnotation() annotations.title = szczyt.name annotations.subtitle = szczyt.opis annotations.coordinate = CLLocationCoordinate2D(latitude: szczyt.lattitude, longitude: szczyt.longtitude) mapView.addAnnotation(annotations) } } func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? { guard !(annotation is MKUserLocation) else { return nil } //let annotationView = MKMarkerAnnotationView(annotation: annotation, reuseIdentifier: "MyMarker") let identifier = "identifier" //guard let annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier) as? MKMarkerAnnotationView else { return nil } guard let annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier, for: annotation) as? MKMarkerAnnotationView else { return nil } let btn = UIButton(type: .detailDisclosure) annotationView.rightCalloutAccessoryView = btn switch annotation.title!! { case "one": annotationView.markerTintColor = UIColor(red: 0.86, green: 0.99, blue: 0.79, alpha: 1.00) annotationView.glyphImage = UIImage(named: "one_pic") case "two": annotationView.markerTintColor = UIColor(red: 0.80, green: 0.98, blue: 0.73, alpha: 1.00) annotationView.glyphImage = UIImage(named: "two_pic"") case "Skrzyczne": annotationView.markerTintColor = UIColor(red: 0.02, green: 0.61, blue: 0.69, alpha: 1.00) annotationView.glyphImage = UIImage(named: "three_pic"") default: annotationView.markerTintColor = UIColor.green annotationView.glyphImage = UIImage(named: "default") } return annotationView } func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer { let circleRenderer = MKCircleRenderer(overlay: overlay) circleRenderer.strokeColor = UIColor.green circleRenderer.fillColor = UIColor.green circleRenderer.alpha = 0.3 circleRenderer.lineWidth = 1.0 return circleRenderer } } This is my Zdobyte Szczyty viewcontroller: import UIKit import SwiftUI class Zdobyte_ViewController: UIViewController {     struct ContentView: View {         var body: some View {            Text("Test viewcontroller gór")     }     }     override func viewDidLoad() {         super.viewDidLoad()     }      } Here is the button view I would like to have with the pin image, but now it only shows the pin with the image: This is how my viewcontrollers view looks like:

New guy here, hacking away on the SwiftUI tutorial (https://developer.apple.com/tutorials/swiftui/building-lists-and-navigation ): In MapView.swift it would be useful to add a pin/marker. Thus adding: struct Place: Identifiable {     let id = UUID()     let name: String     let coordinate: CLLocationCoordinate2D } var annotations = [ Place(name: "Xyz", coordinate: CLLocationCoordinate2D(latitude: 34.011286, longitude: -116.166868)) ] and modifying the View to: var body: some View {     Map(coordinateRegion: $region, annotationItems: annotations) {         MapPin(coordinate: $0.coordinate)     }     .onAppear {         setRegion(coordinate)     } } puts a pin on the Turtle Rock map using the hard-coded latitude and longitude. However, changing (latitude: 34.011286, longitude: -116.166868) to (latitude: coordinate.latitude, longitude: coordinate.longitude) results in error "Cannot use instance member 'coordinate' within property initializer; property initializers run before 'self' is available." What modifications to the project are required to access the latitude and longitude for use in the annotation?

I am using the CloudKit cursor in my app and the cursor works because I can see it from the print (cursor code: https://controlc.com/0d42933b). However, I see nothing on the map (I am using MapKit, CloudKit, and SwiftUI in my project). Below is my View Model: … func fetchLocations() {         ckController.database.fetchRecords(with: RecordType.location) { (results, moreComing, error) in             print("fetchRecords: results.count = \(results.count), moreComing = \(moreComing), error = \(String(describing: error))")             if !moreComing {                 DispatchQueue.main.async { [self] in                     objects = results                                     }             }         }  } … Below is my implementation in the view: … .task {      if locationManager.locations.isEmpty {         viewModel.fetchLocations()      }  } … Print (I have 155 records): fetchRecords: results.count = 1, moreComing = true, error = nil fetchRecords: results.count = 2, moreComing = true, error = nil … fetchRecords: results.count = 155, moreComing = true, error = nil fetchRecords: results.count = 155, moreComing = false, error = nil Somebody knows solutions? Where is a mistake and how I can see all my elements on the map finally?

Hi, I've been asked to estimate a project that would require ARKit, unfortunately I'm new to the technology and need some quick answers as to how it works. The app my customer wants to build would overlay simple graphics at street addresses, as the user pointed their camera at buildings or storefronts. For this to work, I'd need to be able to have the AR view tell me what map locations or street addresses are being seen in the camera view. Is this possible? Thanks, Frank