Maps & Location

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Learn how to integrate MapKit and Core Location to unlock the power of location-based features in your app.

Maps & Location Documentation

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What are possible failures when using CLLocationUpdate.Updates AsyncSequence
Hello, I'm currently migrating my app location service to use the new CLLocationUpdate.Updates. I'm trying to understand what can fail in this AsyncSequence. Based on the previous CLError, I thought authorisation was one of them for example but it turns out that this is handled by the CLLocationUpdate where we can check different properties. So, is there a list of errors available somewhere? Thanks Axel, @alpennec
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426
Dec ’24
How to open Enhanced Apple Maps page from iOS app
I'm trying to create a link from a restaurant annotation on a map in my app (created using MapKit) that will open the Apple Maps app on an iphone. I've been using the Restaurant name, telephone number, and coordinates and cannot get applemaps to open the enhanced page (which contains photographs and customer reviews and is much more descriptive than the page that is opening, which only shows the location on a map with the phone number and coordinates. It is not that descriptive, and I'm trying to create a request that will make it very easy to jump back and forth between my app and the enhanced page on apple maps. here's what I'm using in my request: " private func openInAppleMaps() { let coordinate = CLLocationCoordinate2D(latitude: restaurant.latitude, longitude: restaurant.longitude) let placemark = MKPlacemark(coordinate: coordinate) let mapItem = MKMapItem(placemark: placemark) mapItem.name = restaurant.name if let phone = restaurant.telephone1 { mapItem.phoneNumber = phone } mapItem.openInMaps(launchOptions: [MKLaunchOptionsShowsTrafficKey: true]) } }" the entire file is attached. Any help or advice would be much appreciated. RestaurantCallOutBox.swift
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434
Dec ’24
CLMonitor related crash - EXC_BAD_ACCESS (SIGSEGV)
Hello I started using CLMonitor on my App, and I am noticing the following crash on Xcode Organizer for dozens of my app users: Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000001 Exception Codes: 0x0000000000000001, 0x0000000000000001 VM Region Info: 0x1 is not in any region. Bytes before following region: …………. REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL UNUSED SPACE AT START ---> __TEXT ………-…….. [ 176K] r-x/r-x SM=COW /var/containers/Bundle/Application/.........../MyApp Termination Reason: SIGNAL 11 Segmentation fault: 11 Terminating Process: exc handler […..] Thread 4 name: Thread 4 Crashed: 0 libswiftCoreLocation.dylib 0x000000021680b4c8 @objc completion handler block implementation for @escaping @callee_unowned @convention(block) (@unowned CLMonitor) -> () with result type CLMonitor + 44 (<compiler-generated>:0) 1 CoreLocation 0x0000000196cdddd4 __76-[CLMonitorConfiguration vendMonitorWithIdentityAndAuthorizationAttributes:]_block_invoke + 216 (CLMonitorConfiguration.m:195) 2 libdispatch.dylib 0x0000000191138370 _dispatch_call_block_and_release + 32 (init.c:1549) 3 libdispatch.dylib 0x000000019113a0d0 _dispatch_client_callout + 20 (object.m:576) 4 libdispatch.dylib 0x00000001911416d8 _dispatch_lane_serial_drain + 744 (queue.c:3934) 5 libdispatch.dylib 0x00000001911421e0 _dispatch_lane_invoke + 380 (queue.c:4025) 6 libdispatch.dylib 0x000000019114d258 _dispatch_root_queue_drain_deferred_wlh + 288 (queue.c:7193) 7 libdispatch.dylib 0x000000019114caa4 _dispatch_workloop_worker_thread + 540 (queue.c:6787) 8 libsystem_pthread.dylib 0x0000000211933c7c _pthread_wqthread + 288 (pthread.c:2696) 9 libsystem_pthread.dylib 0x0000000211930488 start_wqthread + 8 Does anyone have similar issue when using CLMonitor? How can I debug / fix this issue? Is it an CLMonitor API bug? Should I file a bug report?
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751
Dec ’24
React native expo background location send to firebase
Hi, I have develop the application in the react native. Now this application is related to truck drivers. So we have added load and when they accept the load then we fetch the location to firebase. Now issue is its not working when app close (background) on physical device. We tried on simulator and its working perfectly in the background. But when i make the build and test on physical device its not working for background task.
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791
Dec ’24
MapKit super slow loading tiles stored on device
Loading tile overlays is slow even when the raster data is locally available on the device running iOS 18.2 and built with Xcode 16.2. In this video (https://3dtopo.com/superSlowTileLoading.mov) it takes 38 seconds to load tiles readily available on the device. Then, the whole screen flashes when tiles that are already drawn are redrawn, making for a very poor user experience. 38 seconds to load a dozen or so small images (512x512) stored locally on the device is simply unacceptable. I can't release a product like this that I've spent the last 1.5 years building and many years developing the maps themselves. This severe issue is new since I committed to basing my app on MapKit. Note that this issue does not occur with Apple's base map tiles. I created a Feedback Assitant case, FB16110803, for this issue. For the video, I disabled loading any tiles from the network and disabled loading any other data, such as polylines. Essentially all I am doing is loading the tiles stored on the device and returning them, such as: public func loadTile(at path: MKTileOverlayPath, result: @escaping (Data?, Error?) -> Void) { fetchData(forKey: key, failure: {error in result(nil, error)}, success: {data in result(data, nil)}) } open func fetchData(forKey key: String, failure fail: ((Error?) -> ())? = nil, success succeed: @escaping (Data) -> ()) { let path = self.path(forKey: key) do { let data = try Data( contentsOf: URL(fileURLWithPath: path), options: Data.ReadingOptions()) succeed(data) self.updateDiskAccessDate(atPath: path) } catch { if let block = fail { block(error) } } }
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Dec ’24
didEnterRegion and didExitRegion delegate methods are called twice
When I set the values of notifyOnExit and notifyOnEnter to true when registering CLCircularRegion, I checked that the didExitRegion and didEnterRegion functions are called well. However, there is a problem that they are called twice in a row every time they are called. I was wondering if this is an internal bug in the API. There is also a stackoverflow report related to the above issue. I would appreciate your confirmation. stackoverflow - why the didEnterRegion called twice? Thank you.
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524
Dec ’24
Location and Photo permission String purpose
I have App uploaded to app store but it was rejected 5 times because of the location and photo permission purpose string the idea of the app is to add compliment , choose the location on the map and some info and the location is not associated to user identity it just to show his place on the map if the place he want to pick is near him he can refuse location permission the map can open and pick the point he want and need permission for images to add images with compliment , I need help for location and images permission purpose string.
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358
Dec ’24
Unreliable CLServiceSession(authorization: .always) when using other background modes.
I am using CLServiceSession(authorization: .always) to start a service session for tracking Zone entry and exit in the background in my app. It has been working fine on iOS 18 until recently when we added some BGProcessingTasks. The task runs when the user is not moving and the device is on charge, this task runs fro a bit in the background, however we are seeing that even though we are reinitializing then session upon app launch. We have even tried to just explicitly reinitialize a session within the background task callback, but the zone tracking still continues to fail. Significant location changes are unaffected. Timeline of events: User Opens App, CLServiceSession(authorization: .always) is called (assume permissions have already been granted.) App is backgrounded User moves outside zone and app captures the data correctly (this can happen any amount of times) User plugs in Phone BGProcessingTask callback is run, it may or may not be terminated early. The service session is recreated as the first action in the callback. (we have also tried putting it in the main init() function for the app, same outcome) User moves outside zone later and app does NOT capture the data. User is sad :( The session seems to be reinitialized correctly when the app is launched due to CoreLocation updates. Is this expected behaviour or a bug? Is there a good way to debug what is happening with the sessions? Unfortunately, the WWDC sessions on this have not enlightened us about the cause of this behaviour.
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369
Dec ’24
Clarification needed regarding requirements for geofencing
In my app, I am using geofencing to perform an action when the user enter or leaves a specified location. The geofencing (CLMonitor) is active permanently, and should work across multiple app sessions or after the device is restarted. It should also work after the app was minimized or terminated. This worked perfectly with iOS 17 and prior, but with iOS 18, things changed. As soon as iOS 18 dropped, users were informing me that the app does no longer perform the entry/exit action reliably (without me making any changes to the app). Most of the times, events are missed entirely. Sometimes, after the user opens or resumes the app, duplicate events are delivered and/or events with the current time instead of the correct time of entry/exit. I am making sure that the app has the "Always" location permission before geofencing is enabled The gefocence radius is between 20 and 500m, but even with the max. radius specified, the geofencing is unreliable For the same user and geofence, the entry/exit event is delivered occasionally, but not always I am currently not using CLLocationManager.allowsBackgroundLocationUpdates (even though it's documented as "Apps that receive location updates when running in the background must include the UIBackgroundModes key (with the location value) in their app’s Info.plist file") because it wasn't necessary on iOS 17 and in my tests, using it didn't yield any improvements In my search for what could have caused this change, I found this WWDC video about location authorization: . It appears that with iOS 18, it is now required to have an active CLServiceSession to ensure that location updates are delivered to my app. Even though the video is long (and I've watched it multiple times), some things are still unclear. For example, the docs state: If your app actively receives and processes location updates and terminates, it should restart those APIs upon launch in order to continue receiving updates. Also, in the video it is stated that: ... So your job, ..., is to make sure that your process launch logic knows what features it has been tasked with pursuing, and re-takes session objects... But on the other hand it's also said that: you can only start holding one (a CLServiceSession) when your app is in the foreground and also ... CLMonitor.events won’t yield results when it is not in use, unless a session which was started in the foreground, .... To summarize my questions, for the geofencing to work as described above: when exactly do I need to create a CLServiceSession if the app is launched into the backgorund? Immediately in the applicationDidFinishLaunching method, even though the app is still in the background (applicationState is background)? Or later on, when the app is opened again by the user, e.g. in applicationDidBecomeActive (and applicationState is active)? do I need to specify the background mode capability as noted in the Handling location updates in the background article? do I need to create a CLBackgroundActivitySession as noted in the Handling location updates in the background article? does it matter, which of the four initializer methods I am using to create the CLServiceSession (with CLServiceSessionAuthorizationRequirementAlways)? does it matter if I specify NSLocationRequireExplicitServiceSession in the Info.plist or not when I already do ensure that the app has the "Always" location permission when the feature is being enabled Does a CLServiceSession last indefinitely and should it only be invalidated once the user disables the feature?
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1k
Nov ’24
Potential memory leaks in CLLocationUpdate.Updates
This is my first post here. Please guide me, if I need to provide more information to answer this post. I write a simple application, that monitors GPS position (location). I followed Apple documentation for LiveUpdates: https://developer.apple.com/documentation/corelocation/supporting-live-updates-in-swiftui-and-mac-catalyst-apps My app can monitor location in foreground, background or it can completely stop monitoring location. Background location, if needed, is switched on when application changes scenePhase to .background. But it is in the foreground, that memory leaks occur (according to Instruments/Leaks. Namely Leaks points to the instruction: let updates = CLLocationUpdate.liveUpdates() every time I start location and then stop it, by setting updatesStarted to false. Leaks claims there are 5x leaks there: Malloc 32 Bytes 1 0x6000002c1d00 32 Bytes libswiftDispatch.dylib OS_dispatch_queue.init(label:qos:attributes:autoreleaseFrequency:target:) CLDispatchSilo 1 0x60000269e700 96 Bytes CoreLocation 0x184525c64 Malloc 48 Bytes 1 0x600000c8f2d0 48 Bytes Foundation +[NSString stringWithUTF8String:] NSMutableSet 1 0x6000002c4240 32 Bytes LocationSupport 0x18baa65d4 dispatch_queue_t (serial) 1 0x600002c69c80 128 Bytes libswiftDispatch.dylib OS_dispatch_queue.init(label:qos:attributes:autoreleaseFrequency:target:) I tried [weak self] in Task, but it doesn't solve the leaks problem and causes other issues, so I dropped it. Anyway, Apple doesn't use it either. Just in case this is my function, which has been slightly changed comparing to Apple example, to suit my needs: func startLocationUpdates() { Task() { do { self.updatesStarted = true let updates = CLLocationUpdate.liveUpdates() for try await update in updates { // End location updates by breaking out of the loop. if !self.updatesStarted { self.location = nil self.mapLocation = nil self.track.removeAll() break } if let loc = update.location { let locationCoordinate = loc.coordinate let location2D = CLLocationCoordinate2D(latitude: locationCoordinate.latitude, longitude: locationCoordinate.longitude) self.location = location2D if self.isAnchor { if #available(iOS 18.0, *) { if !update.stationary { self.track.append(location2D) } } else { // Fallback on earlier versions if !update.isStationary { self.track.append(location2D) } } } } } } catch { // } return } } Can anyone help me locating these leaks?
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592
Oct ’24
App Clips Advanced Experiences not showing up in Apple Maps and Siri Suggestions
Hello everyone, I’m experiencing an issue with App Clips Advanced Experiences and Apple Maps/Siri Suggestions. We have already contacted Apple Support before, but they are investigating the cause of this issue and it has not been resolved til date. The App Clip is bundled with the main app and has been already available on the App Store for several months. The business running the app has several physical shops and wants to offer the App Clip to show up in Apple Maps and Siri Suggestions at each location. The App Clip is correctly exposed in the AASA file, and it's also validated correctly by the AASA APIs available at https://app-site-association.cdn-apple.com/a/v1. { "applinks": { "apps": [], "details": [ { "appID": "TEAMID.bundleid", "paths": [] } ] }, "appclips": { "apps": [ "TEAMID.bundleid.Clip" ] } } (with TEAMID and bundleid being the team and bundle identifiers of the app) The App Clip is displayed correctly when loading the website and when scanning a QR code or App Clip code, but doesn't appear in the Maps app or in Siri suggestions. We have set up the App Clip Advanced Experiences on the App Store Connect page of the app, and each URL has been linked to a physical shop. All URLs are in the "Received" state, so they should appear correctly on Maps. Unfortunately, I don't see any "Order" button in Apple Maps at any location card. We tried with both iOS 17 and 16. According to feedbacks from people in the shops, they don't see the app suggested in the Siri Suggestions. I have just submitted a Custom Action Link on Apple Business Connect for one of the shops, but without success: the App Clip doesn't appear. Any idea why is this happening?
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Sep ’24
Swift 6 Concurrency Errors with MKLocalSearchCompleterDelegate results
Has anyone found a thread-safe pattern that can extract results from completerDidUpdateResults(MKLocalSearchCompleter) in the MKLocalSearchCompleterDelegate ? I've downloaded the code sample from Interacting with nearby points of interest and notice the conformance throws multiple errors in Xcode 16 Beta 5 with Swift 6: extension SearchDataSource: MKLocalSearchCompleterDelegate { nonisolated func completerDidUpdateResults(_ completer: MKLocalSearchCompleter) { Task { let suggestedCompletions = completer.results await resultStreamContinuation?.yield(suggestedCompletions) } } Error: Task-isolated value of type '() async -> ()' passed as a strongly transferred parameter; later accesses could race and Error: Sending 'suggestedCompletions' risks causing data races Is there another technique I can use to share state of suggestedCompletions outside of the delegate in the code sample?
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2.2k
Aug ’24
Request of CarPlay Navigation Entitlement when having the Driving Task one
I have the CarPlay Entitlement "Driving Task" and two of my apps use it. Now, in both apps, I have implemented Navigation. I requested the Navigation CarPlay Entitlement when the feature was mature and builds were available in Test Flight, since I wanted to release the new versions of the apps with navigation available both on the iPhone and in CarPlay. I got no answer to my request, so I decided to release the apps with only navigation in the iPhone and the Driving Task functionality in CarPlay, thinking that maybe being live with navigation in the App Store was a requirement. I have asked permission again, and so far, the request is being ignored again. What are the requirements to get the Navigation CarPlay Entitlement? If the app is approved for navigation, is there something else the app must do to get the entitlement? Requirements for CarPlay Entitlements seem quite obscure, are they listed anywhere? Is there a technical problem to move from an existing CarPlay Entitlement to another? Can that be the reason the entitlement has not been granted? Some of my competitors have the CarPlay Navigation entitlement. My use case is the same (in a better app in my opinion, of course). But I am only getting bad reviews because "the app does not include the map in CarPlay" after the big investment in implementing navigation in the apps. Any help or insight would be appreciated.
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817
Jul ’24
UIKit mapView color annotations
I have tried to make colored annotations in mapView (shown in the commented sections) but they always appear in black. Any help would be appreciated. func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? { let annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "TempAnnotationView") annotationView.canShowCallout = true annotationView.rightCalloutAccessoryView = UIButton(type: .detailDisclosure) let configuration = UIImage.SymbolConfiguration(pointSize: 10, weight: .thin, scale: .default) if annotation.title == "Start" { // let config = UIImage.SymbolConfiguration.preferringMulticolor() // let image = UIImage(systemName: "flag.fill", withConfiguration: config) // // palette // let config2 = UIImage.SymbolConfiguration(paletteColors: [.systemRed, .systemGreen, .systemBlue]) // let image2 = UIImage(systemName: "person.3.sequence.fill", withConfiguration: config2) // // hierarchical symbols // let config3 = UIImage.SymbolConfiguration(hierarchicalColor: .systemIndigo) // let image3 = UIImage(systemName: "square.stack.3d.down.right.fill", withConfiguration: config3) // // color // let image4 = UIImage(systemName: "cone.fill")?.withTintColor(.systemRed, renderingMode: .alwaysTemplate) // annotationView.image = image4 annotationView.image = UIImage(systemName: "poweron", withConfiguration: configuration) } return annotationView }
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730
Feb ’24
Geolocation tracking for IOS apps using .net Maui
I'm working on an in-house iOS app designed to help users accurately track their routes during trips. Currently, I've implemented a method to track users when the app is open in the background. However, I'm facing challenges, as the tracking stops when the device is locked for more than 10 minutes. I'm looking for a solution to continuously track a user's geolocation, even if the app is closed or not in use. Specifically, I want to ensure uninterrupted tracking, especially when the device is locked. Here are some key points: Current Method: I'm currently using the Core Location method and a combination of background tasks and a repeating timer to fetch the user's location and update a log for geolocation tracking when the app is open in the background. Issues Faced: The tracking stops when the device is locked for more than 10 minutes. This limitation impacts the accuracy of the route tracking during longer trips. Objective: My goal is to achieve continuous geolocation tracking, even when the app is closed or not actively used, to provide users with a seamless and accurate record of their routes. Platform: The app is developed for iOS using the .net maui platform, and I'm seeking solutions or suggestions that are compatible with the iOS .net maui environment. If anyone has experience or insights into achieving continuous geolocation tracking on iOS, especially when the app is not in use or the device is locked, I would greatly appreciate the assistance.
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1k
Dec ’23
Background location stops with (kCLErrorDomain error 1.) but permission was granted
We are currently experiencing a very interesting issue when accessing the location in the background with CLLocationManager. The user has given our app the "whenInUse" permission for locations and in most cases the app provides location updates even when it's in the background. However, when we started to use other navigation apps in the foreground we saw that the func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) method was called with (kCLErrorDomain error 1.). The user hasn't changed the location permission and we saw that locations were delivered once the user opened the app again. I don't see anything in the documentation explaining this issue, but I chatted with other developers that confirm that specific behavior. Am I missing something here?
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911
Aug ’23
Granularity/Accuracy of delivered locations with live updates
First of all : Thanks for the great presentation (wwdc2023-10180), Siraj ! This new, simple API looks like what we've been looking for for easy manageable background location updates with 'automatic battery drain minimization' :-) There were two questions that came to my mind. As far as I understood, the CLLocationUpdate.LiveConfiguration is used to help the location services to improve the location fixes. Are there other options planned to specify the granularity of delivered locations e.g., how accurate the locations need to be (as the desiredAccuracy and distanceFilter settings for the olden CLLocationManager)? Does the Implementation switch between significant location changes and regular, more expensive ways (like GPS hardware) or just deliver the most feasible accuracy available at the time of notification? I'm just curious - if I get the most feasible granularity, everything is fine for me anyway :-) Thanks again, Michael
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1k
Jun ’23
Using Maps in App Intents
I want to use MapKit with App Intents, but the map does not show up.(See attached image) Can anyone help me solve this? import SwiftUI import MapKit struct ContentView: View {   @State private var region = MKCoordinateRegion(     center: CLLocationCoordinate2D(latitude: 37.334_900,                     longitude: -122.009_020),     latitudinalMeters: 750,     longitudinalMeters: 750   )       var body: some View {     VStack {       Map(coordinateRegion: $region).frame(width:300, height:300)         .disabled(true)     }   } } struct ContentView_Previews: PreviewProvider {   static var previews: some View {     ContentView()   } } import AppIntents import SwiftUI import MapKit struct test20220727bAppIntentsExtension: AppIntent {   static var title: LocalizedStringResource = "test20220727bAppIntentsExtension"       func perform() async throws -> some IntentResult {     return .result(value: "aaa", view: ContentView())   } } struct testShortcuts:AppShortcutsProvider{   @available(iOS 16.0, *)   static var appShortcuts: [AppShortcut]{     AppShortcut(       intent: test20220727bAppIntentsExtension(),       phrases: ["test20220727bAppIntentsExtension" ]     )   } }
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1.2k
Jul ’22