Maps & Location

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MapKit detailAccessoryView buttons not working on macOS Tahoe
Hi, I have been working with an implementation of MapKit which show custom annotations with a detailCalloutAccessoryView built using SwiftUI. This has been working fine for many years, but starting with macOS Tahoe, somehow the SwiftUI buttons in this view have stopped being tappable. I have reproduced the issue in the code below ... same code works fine in macOS14 and macOS15 now doesn't work correctly in macOS26: import Cocoa import MapKit import SwiftUI class ViewController: NSViewController { private var mapView: MKMapView! override func viewDidLoad() { super.viewDidLoad() setupMapView() } private func setupMapView() { // Create and configure the map view mapView = MKMapView() mapView.translatesAutoresizingMaskIntoConstraints = false mapView.delegate = self view.addSubview(mapView) // Pin the map to all edges of the view NSLayoutConstraint.activate([ mapView.topAnchor.constraint(equalTo: view.topAnchor), mapView.leadingAnchor.constraint(equalTo: view.leadingAnchor), mapView.trailingAnchor.constraint(equalTo: view.trailingAnchor), mapView.bottomAnchor.constraint(equalTo: view.bottomAnchor) ]) // Create an annotation for San Francisco let sanFranciscoCoordinate = CLLocationCoordinate2D(latitude: 37.7749, longitude: -122.4194) let annotation = MKPointAnnotation() annotation.coordinate = sanFranciscoCoordinate annotation.title = "San Francisco" annotation.subtitle = "The City by the Bay" // Add the annotation to the map mapView.addAnnotation(annotation) // Center the map on San Francisco let region = MKCoordinateRegion(center: sanFranciscoCoordinate, latitudinalMeters: 5000, longitudinalMeters: 5000) mapView.setRegion(region, animated: false) } } // MARK: - MKMapViewDelegate extension ViewController: MKMapViewDelegate { func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? { let identifier = "CustomAnnotation" var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier) as? MKMarkerAnnotationView if annotationView == nil { annotationView = MKMarkerAnnotationView(annotation: annotation, reuseIdentifier: identifier) annotationView?.canShowCallout = true // Create the SwiftUI view for the callout let calloutView = CalloutContentView() let hostingView = NSHostingView(rootView: calloutView) hostingView.frame = NSRect(x: 0, y: 0, width: 200, height: 100) // Set the SwiftUI view as the detail callout accessory annotationView?.detailCalloutAccessoryView = hostingView } else { annotationView?.annotation = annotation } return annotationView } } // MARK: - SwiftUI Callout View struct CalloutContentView: View { var body: some View { VStack(spacing: 12) { Text("Welcome to San Francisco!") .font(.headline) .multilineTextAlignment(.center) HStack(spacing: 12) { Button(action: { print("Directions button tapped") }) { Label("Directions", systemImage: "arrow.triangle.turn.up.right.circle.fill") .font(.caption) } .buttonStyle(.borderedProminent) Button(action: { print("Info button tapped") }) { Label("Info", systemImage: "info.circle.fill") .font(.caption) } .buttonStyle(.bordered) } } .padding() .frame(width: 200) } } I've looked at other problems with Map and onTap handlers not getting called, but this is a SwiftUI view inside an AppKit MapKit annotation's callout view. Any idea of how to handle this?
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206
Nov ’25
Stopping and Resuming Background Location Activity with CLLocationUpdates and CLBackgroundActivitySession
Hello, This is my first post in the forums, and I'm still learning my way with iOS Development and Swift. My apologies if the formatting is not correct, or If I'm making any mistakes. I'm currently trying to implement an iOS App where the device needs to share the location with my server via an API call. The use case is as follows: the server expects location updates to determine if a device is inside/outside a geofence. If the device is stationary, no locations need to be sent. If the device begins moving, regardless of whether the app is in foreground, background, or terminated, the app should resume posting locations to the server. I've decided to use the CLLocationUpdate.liveUpdates() stream, together with CLBackgroundActivitySession(). However, I have not been able to achieve the behavior successfully. My app either maintains the blue CLActivitySession indicator active, regardless of whether the phone is stationary or not, or kills the Indicator (and the background capability) and does not restore it when moving again. Below I've attached my latest code snippet (the indicator disappears and does not come back). // This method is called in the didFinishLaunchingWithOptions func startLocationUpdates(precise: Bool) { // Show the location permission pop up requestAuthorization() // Stop any previous sessions stopLocationUpdates() Task { do { // If we have the right authorization, we will launch the updates in the background // using CLBackgroundActivitySession if self.manager.authorizationStatus == .authorizedAlways { self.backgroundActivity = true } else { self.backgroundActivity = false self.backgroundSession?.invalidate() } // We will start collecting live location updates for try await update in CLLocationUpdate.liveUpdates() { // Handle deprecation let stationary = if #available(iOS 18.0, *) { update.stationary } else { update.isStationary } // If the update is identified as stationary, we will skip this update // and turn off background location updates if stationary { self.backgroundSession?.invalidate() continue } // if background activity is enabled, we restore the Background Activity Session if backgroundActivity == true { self.backgroundSession = CLBackgroundActivitySession() } guard let location = update.location else { continue } // Do POST with location to server } } catch { print("Could not start location updates") } } } I'm not sure why the code does not work as expected, and I believe I may be misunderstanding how the libraries Work. My understanding is that the liveUpdates stream is capable of emitting values, even if the app has gone to the background/terminated, thus why I'm trying to stop/resume the Background Activity using the "stationary" or "isStationary" attribute coming from the update. Is the behavior I'm trying to achieve possible? If so, I'm I using the right libraries for it? Is my implementation correct? And If not, what would be the recommended approach? Regards
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183
Dec ’25
Z-Index for MarkerAnnotation
Hey there, is there a way to set the z-index for MarkerAnnotations in MapkitJS? I'm loading up to 200 markers dynamically as the map moves or the user zooms and I want a few specific markers to always be at the top (the best search results). The only way I found is to always remove all markers and then add them again in the right order, but that's visually so annoying to see them disappear and animate in with every tiny movement. I thought about using a default Annotation and setting the z-index myself and trying to rebuild the balloon, including the animation when it's clicked, but the big downside is probably the performance because I won't be able to use shadow DOM elements and have 200 real DOM elements instead. Is there a solution to this right now or is it planned to add a feature like that to Mapkit JS? It's a real blocker for me right now because all the bad content always gets rendered on top when a user zooms in, because I obviously want to show the best content first when the user isn't zoomed in yet. Thank you so much in advance. I really appreciate it. Manuel
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167
Jan ’26
CLMonitor API Missing Geofence Entry Events After Initial Registration
We are experiencing a failure in CLMonitor event delivery when the application is launched into the background via an APNS (Remote Push Notification). Even when a CLBackgroundActivitySession is instantiated immediately upon background launch, CLCircularGeographicCondition "Enter" events are suppressed. The system fails to deliver these events until the user manually brings the application to the Foreground. This indicates that CLBackgroundActivitySession does not correctly maintain background persistence when the session begins in a background state rather than transitioning from the foreground. Comparison of API Behavior (Background State) Launch via APNS: CLMonitor: Fails to trigger "Enter" events until the app is manually brought to the foreground. Legacy API: Successfully triggers and delivers "Enter" events immediately upon background launch. Exit Event Reliability: CLMonitor: Reliably triggers exit events even in the background. Legacy API: Reliably triggers exit events. Foreground Dependency: CLMonitor: Requires a foreground transition to "flush" or activate the delivery of pending entry events. Legacy API: No foreground transition required; events are delivered directly to the background process. Event Recovery: CLMonitor: Relies on the developer re-instantiating the CLMonitor and awaiting the events stream, which appears to "stall" during warm-starts. Legacy API: Relies on the CLLocationManagerDelegate which remains active as long as the manager instance exists. Steps to Reproduce Preconditions: Location Permissions: Set to "Always Allow". Background Modes: "Location updates" and "Remote notifications" enabled. App State: Terminated or Killed (by the user or the OS). Reproduction Path: Trigger Background Launch: Send a silent push notification (APNS) to wake the app in the background. Initialize Session: Within the background launch sequence (e.g., didFinishLaunchingWithOptions), immediately create and hold a strong reference to a CLBackgroundActivitySession. Register Monitor: * Initialize CLMonitor using requestMonitorWithConfiguration. Add a geofence using addConditionForMonitoring with a CLCircularGeographicCondition. Simulate Entry: Move the physical device (or simulate location) into the geofence boundary while the app remains in the background state. Observe: No "Enter" event is received in the CLMonitor event stream. Foreground Transition: Bring the app to the foreground. Actual Result: The "Enter" event is only delivered the moment the app enters the Foreground. Expected Result: The CLBackgroundActivitySession should enable CLMonitor to deliver "Enter" events immediately in the background, parity with the deprecated startMonitoringForRegion API.
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204
2w
why mapkit js does not have LookAroundSceneRequest
I want to update coordinate of the lookaround instance object. But mapkit.js does not have LookAroundSceneRequest class, how am I going to do. In swift, there is MKLookAroundSceneRequest class, you can specify a new coordinate with this class, to get a new LookAroundScene object, then attach new LookAroundScene to the existing lookAround object, But how am I going to do the same with mapkit.js ?? it missing LookAroundSceneRequest class in js
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139
Jan ’26
Scene-based Launch Detection
Our app supports UIScene. As a result, launchOptions in application(_:didFinishLaunchingWithOptions:) is always nil. However, the documentation mentions that UIApplication.LaunchOptionsKey.location should be present when the app is launched due to a location event. Given that our app is scene-based: How can we reliably determine whether the app was launched due to a location update, geofence, or significant location change? Is there a recommended pattern or API to detect this scenario in a Scene-based app lifecycle? This information is critical for us to correctly initialize location-related logic on launch. Relevant documentation: https://developer.apple.com/documentation/corelocation/cllocationmanager/startmonitoringsignificantlocationchanges()
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2w
Disable userLocationAnnotation bubble
Hello, thanks for your effort! I found that when showsUserLocation is set to true (by default), the pulsing blue dot user location annotation is shown, which is cool and beautiful. However, it will automatically and periodically attempt to call the Apple Server API GET https://api.apple-mapkit.com/v1/reverseGeocode within userLocationDidChange() and updateUserLocationAnnotation() to display, I assume, the user's current address when single-tapping on the blue dot. It will significantly use the MapKit service calls quota since the user location is automatically updated. It almost runs out of quota even though the map initialization is plenty enough. Is there any way to disable the bubble behavior but preserve the user location blue dot, which is lovely and better than drawing my own user location dot? It seems I can only turn off all user location features. Many thanks!
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2w
MapKit: Customize view shown by .mapFeatureSelectionAccessory
Hello, Probably a noob question but I can't find any example code around this use case, and really no past questions I could find that address it either. So, I really love that, when a user taps a POI on the map in my app, the map figures out the right POI every time. Flawless. However, when using .mapFeatureSelectionAccessory, I've tried probably 10-12 iterations, and there doesn't seem to be any way to either: a) add custom content to the place card that's shown, or b) replace that place card altogether with a view of my own, or c) capture the place data but use it in a custom view I want to be able to leverage the accuracy of Apple's tap gesture detection, but show, for example, only the name of the place, along with buttons and a form I have in a view. Right now if I'm using .mapFeatureSelectionAccessory, I can't seem to bypass the place card at all.
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291
Mar ’25
Maps Web Snapshots: 500 Internal Server Error
Currently (at least for a few days, maybe longer), when trying to create an Apple Maps Web Snapshot according to https://developer.apple.com/documentation/snapshots/generating_a_url_and_signature_to_create_a_maps_web_snapshot with a custom image marker (passed as Base64 PNG), the Apple server responds with a 500 Internal Server Error. Using the default balloon marker works, but a custom Base64 image marker used to work in the past (and still should according to the documentation).
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245
Mar ’25
CarPlay map view stops updating when iPhone screen turns off
Hello all, I have a food delivery app that I am beginning to implement CarPlay support in. Route picking, navigation, turn-by-turn guidance features all work perfectly on iPhone, and on CarPlay while the iPhone is unlocked, or locked but screen on. However, when the iPhone is locked and the screen is off, the CarPlay map view stops following the user's location and appears to be frozen. When this happens, the other "map buttons" that are part of the CPMapTemplate continue to accept user input (I can enter and exit the map panning mode for example), the user's location continues to update, and the turn-by-turn guidance continues as normal. It appears to be just the map view (which is drawn on the window and is not part of the CPMapTemplate) that stops updating in this state. I've been through every page of Apple documentation on CarPlay but nothing references or addresses how to keep the CarPlay session active while the iPhone is locked. I'm not sure where else to look for answers and I'm out of theories as to why this might happen. Any guidance around this would be greatly appreciated.
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127
Mar ’25
Guidance on Continuous Location & Direction Updates to watchOS App Without Screen Dimming
Dear Apple Developer Support, I am reaching out for guidance on implementing continuous directional and location updates in a watchOS app designed as part of a mapping/navigation solution. Current Scenario: We send continuous location and direction updates from our iOS app to the watchOS companion app. When viewing directions on the Apple Watch, the screen dims after a short period, and the live data stops updating consistently, even though the user is actively looking at the screen. This negatively impacts the usability of real-time navigation on watchOS. Our Objective: Prevent screen dimming (or extend screen-on time) while the user is viewing navigation directions. Ensure reliable, continuous data updates on the watch screen during active navigation sessions. Request: We would appreciate your guidance on: The recommended method to keep the watchOS screen active while displaying real-time navigation data. Proper use of APIs such as WKExtendedRuntimeSession, WorkoutSession, or any other mechanism suitable for this use case. Any best practices or App Store review considerations for apps that require extended screen time and continuous updates. How such use cases were traditionally handled on watchOS and what has or hasn’t worked. We want to ensure we're implementing this in a battery-efficient, user-respectful, and Apple-compliant manner. Thank you for your assistance and guidance.
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91
Apr ’25
Issue with calculating the distance between two points on a map
I have an error issue that I haven’t been able to solve despite doing extensive research. In fact the similar examples I have found so far have been educational but I have not been able to make work. The example below I am hoping will be easy to fix as it is only producing errors with one line of code… import SwiftUI import CoreLocation var currentLon = Double() var currentLat = Double() extension CLLocation { class func distance(from: CLLocationCoordinate2D, to: CLLocationCoordinate2D) -> CLLocationDistance { let from = CLLocation(latitude: from.latitude, longitude: from.longitude) let to = CLLocation(latitude: to.latitude, longitude: to.longitude) return from.distance(from: to) } func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { currentLon = (locations.last?.coordinate.longitude)! currentLat = (locations.last?.coordinate.latitude)! }/*⚠️ Not sure if this function will work? (Update User Location coordinates on the move?)*/ } struct Positions: Identifiable { let id = UUID() let name: String let latitude: Double let longitude: Double var coordinate: CLLocationCoordinate2D { CLLocationCoordinate2D(latitude: latitude, longitude: longitude) } } struct GameMapView: View { let from = CLLocationCoordinate2D(latitude: currentLon, longitude: currentLat) let to = CLLocationCoordinate2D(latitude: thisCardPositionLongitude, longitude: thisCardPositionLongitude) let distanceFrom = from.distance(from: to) /*⚠️ ERRORS: 1. Cannot use instance member 'from' within property initializer; property initializers run before 'self' is available. 2. Cannot use instance member 'to' within property initializer; property initializers run before 'self' is available. 3. Value of type 'CLLocationCoordinate2D' has no member 'distance'. */ @State private var region = MKCoordinateRegion( center: CLLocationCoordinate2D( latitude: thisCardPositionLatitude, longitude: thisCardPositionLongitude), span: MKCoordinateSpan( latitudeDelta: 0.0001, longitudeDelta: 0.0001) ) var body: some View { Map(coordinateRegion: $region, showsUserLocation: true, annotationItems: locations){ place in MapMarker(coordinate: place.coordinate,tint: Color.accentColor) } .edgesIgnoringSafeArea(.all) VStack { Print("Distance from Location: \(distanceFrom)") font(.largeTitle) padding() }
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158
Apr ’25
Localisation on Apple Watch
Hi everyone! I’m a new developer diving into my first Apple Watch project, and I’m really excited to get started! This app relies heavily on using the most precise location data possible. Could anyone point me to some official documentation or helpful resources on how to achieve high-accuracy location tracking specifically for watchOS? Any tips or best practices would also be greatly appreciated! Thanks in advance for your help!
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94
Apr ’25
Core Location reports incorrect location update especially with underground travel
Description of the Bug: Core Location intermittently reports inaccurate location updates, albeit with a high accuracy value. This problem occurs almost exclusively while travelling in metros underground affecting the ability to rely on the framework effectively. Steps to Reproduce: The user starts travelling on ground level at point A The user continues travelling and, after some time, is now underground at point B. A stationary beacon scanned at point B confirms this. Core Location is observed to deliver a location update with a high-accuracy value but with the coordinates around point A when the user is actually around point B. Expected Behaviour: Accurate locations should be delivered at all times. In other words, Core Location should not report location updates with high accuracy when its certainty is low.
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94
Apr ’25