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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MapPolygon
I recently converted over my map from Mapbox Maps to MapKit Map. I have been able to add my polygons on the Map using MapPolygon. The issue I am having is being able to select the Polygon to be able to view information about the polygon. Has anyone been able to figure out a way to tap on the Polygon? I have tried selection but the Polygon doesn't recognize the tap. I would really appreciate it if anyone could point me in the right direction of how I can accomplish this.
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372
Feb ’25
Keep tracking user driving sessions when the app is killed.
I want a solution to keep tracking the user once he started in driving state until parking. I tried many solutions like use significant location changes, and silent push notifications and background tasks, but no one of them worked as expected. I need when user started in driving the app be active until the user parked his car. I'm using CoreMotion and CoreLocation. The challenge is when the app is not active like killed or suspended. So, how to do this? is this possible or not?
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407
Feb ’25
Bachelor Thesis -Geolocation
Hello, I write a Bachelor-Theses about Geolocation on an iPhone. I have a Signal-generator from R&S to simulate GPS-Data. I write an App on an Android-Phone and can readout the GPS-ID and the strength from the signal and the time and Position for Geolocation zb. Island or Africa like this. Now my thesis is about the iPhone and I write an App for get the location manager Geolocation and to save it to a sqlite-database with longitude, latitude and time. But the App recognizes only the real world for geolocation on GPS (LTE and Wlan are disabled!). With my Radio-Generator it would not recognize any Geolocation like the Android phone.? So I need some fast help for my thesis, where are my problems? I allready have a function like this: func updateAccuracy(highAccuracy: Bool) { locationManager.desiredAccuracy = highAccuracy ? kCLLocationAccuracyBestForNavigation : kCLLocationAccuracyHundredMeters print("🎯 GPS-Genauigkeit geändert: (highAccuracy ? "Hoch" : "Plane-Genauigkeit")") } but nothing happens? Best regards
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323
Feb ’25
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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269
Mar ’25
com.apple.corelocation.shared Crash after implementation of live updates
After the implementation of liveUpdates(_:) to receive asynchronous sequence of location updates, we are receiving crash reports on a huge number of users. However we cannot reproduce the crash so any help is much appreciated. This is the stack trace: com.apple.main-thread 0 libsystem_kernel.dylib 0xce4 mach_msg2_trap + 8 1 libsystem_kernel.dylib 0x439c mach_msg2_internal + 76 2 libsystem_kernel.dylib 0x42b8 mach_msg_overwrite + 428 3 libsystem_kernel.dylib 0x4100 mach_msg + 24 4 CoreFoundation 0x717b0 __CFRunLoopServiceMachPort + 160 5 CoreFoundation 0x70e90 __CFRunLoopRun + 1208 6 CoreFoundation 0x957f0 CFRunLoopRunSpecific + 572 7 GraphicsServices 0x1190 GSEventRunModal + 168 8 UIKitCore 0x3ca158 -[UIApplication _run] + 816 9 UIKitCore 0x3c8388 UIApplicationMain + 336 10 atto 0x6a41a0 main + 25 (AppDelegate.swift:25) 11 ??? 0x1ac153a58 (Missing) com.apple.uikit.eventfetch-thread 0 libsystem_kernel.dylib 0xce4 mach_msg2_trap + 8 1 libsystem_kernel.dylib 0x439c mach_msg2_internal + 76 2 libsystem_kernel.dylib 0x42b8 mach_msg_overwrite + 428 3 libsystem_kernel.dylib 0x4100 mach_msg + 24 4 CoreFoundation 0x717b0 __CFRunLoopServiceMachPort + 160 5 CoreFoundation 0x70e90 __CFRunLoopRun + 1208 6 CoreFoundation 0x957f0 CFRunLoopRunSpecific + 572 7 Foundation 0x74728 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212 8 Foundation 0x73558 -[NSRunLoop(NSRunLoop) runUntilDate:] + 64 9 UIKitCore 0x4bd354 -[UIEventFetcher threadMain] + 424 10 Foundation 0x115f40 NSThread__start + 732 11 libsystem_pthread.dylib 0x1afc _pthread_start + 136 12 libsystem_pthread.dylib 0x1a04 thread_start + 8 com.google.firebase.crashlytics.MachExceptionServer 0 FirebaseCrashlytics 0x21c10 FIRCLSProcessRecordAllThreads + 184 1 FirebaseCrashlytics 0x21ff0 FIRCLSProcessRecordAllThreads + 1176 2 FirebaseCrashlytics 0x18e74 FIRCLSHandler + 48 3 FirebaseCrashlytics 0x1b804 FIRCLSMachExceptionServer + 688 4 libsystem_pthread.dylib 0x1afc _pthread_start + 136 5 libsystem_pthread.dylib 0x1a04 thread_start + 8 com.apple.NSURLConnectionLoader 0 libsystem_kernel.dylib 0xce4 mach_msg2_trap + 8 1 libsystem_kernel.dylib 0x439c mach_msg2_internal + 76 2 libsystem_kernel.dylib 0x42b8 mach_msg_overwrite + 428 3 libsystem_kernel.dylib 0x4100 mach_msg + 24 4 CoreFoundation 0x717b0 __CFRunLoopServiceMachPort + 160 5 CoreFoundation 0x70e90 __CFRunLoopRun + 1208 6 CoreFoundation 0x957f0 CFRunLoopRunSpecific + 572 7 CFNetwork 0xeba68 +[__CFN_CoreSchedulingSetRunnable _run:] + 416 8 Foundation 0x115f40 NSThread__start + 732 9 libsystem_pthread.dylib 0x1afc _pthread_start + 136 10 libsystem_pthread.dylib 0x1a04 thread_start + 8 Thread 0 libsystem_kernel.dylib 0xa90 __workq_kernreturn + 8 1 libsystem_pthread.dylib 0x46ac _pthread_wqthread + 368 2 libsystem_pthread.dylib 0x19f8 start_wqthread + 8 Crashed: com.apple.corelocation.shared 0 libobjc.A.dylib 0x2050 objc_release_x8 + 16 1 libsystem_blocks.dylib 0x1d30 bool HelperBase::disposeCapture<(HelperBase::BlockCaptureKind)3>(unsigned int, unsigned char*) + 68 2 libsystem_blocks.dylib 0x16a8 HelperBase::destroyBlock(Block_layout*, bool, unsigned char*) + 116 3 libsystem_blocks.dylib 0x1180 _call_dispose_helpers_excp + 72 4 libsystem_blocks.dylib 0x111c _Block_release + 236 5 libsystem_blocks.dylib 0xff4 bool HelperBase::disposeCapture<(HelperBase::BlockCaptureKind)4>(unsigned int, unsigned char*) + 68 6 libsystem_blocks.dylib 0x16f8 HelperBase::destroyBlock(Block_layout*, bool, unsigned char*) + 196 7 libsystem_blocks.dylib 0x1180 _call_dispose_helpers_excp + 72 8 libsystem_blocks.dylib 0x111c _Block_release + 236 9 libdispatch.dylib 0x1b4f8 _dispatch_client_callout + 16 10 libdispatch.dylib 0xa2cc _dispatch_lane_serial_drain + 736 11 libdispatch.dylib 0xad90 _dispatch_lane_invoke + 380 12 libdispatch.dylib 0x15178 _dispatch_root_queue_drain_deferred_wlh + 292 13 libdispatch.dylib 0x149fc _dispatch_workloop_worker_thread + 540 14 libsystem_pthread.dylib 0x4660 _pthread_wqthread + 292 15 libsystem_pthread.dylib 0x19f8 start_wqthread + 8 Thread 0 libsystem_pthread.dylib 0x19f0 start_wqthread + 142 Thread 0 libsystem_pthread.dylib 0x19f0 start_wqthread + 142 Thread 0 libsystem_pthread.dylib 0x19f0 start_wqthread + 142
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268
Feb ’25
How to update business information on Apple Maps Ukraine?
Hello everyone, I need help updating business information on Apple Maps for locations in Ukraine. Unfortunately, the usual methods, like "Report an Issue" in the Maps app or using Apple Business Connect, don’t seem to be working properly for Ukrainian businesses. Many locations have outdated or missing details, which is frustrating for both business owners and customers. Given the current situation, keeping information accurate is more important than ever. Has anyone successfully updated business listings in Ukraine recently? If so, could you share the process or any contacts that might help? Any advice would be greatly appreciated! Thanks in advance!
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265
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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209
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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97
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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70
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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119
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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75
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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73
Apr ’25
Zspeedaccuracy question
Hello everyone, I'm doing some work on validating some data to do with the zpseed functionality around corelocations, i've read up on the speedaccuracy field but the wording doesn't make sense to me. It says if its a positive number it is plus or minus the value in the zspeed column so would this be for example zspeed of 35 mps with an accuracy of 3 mps would it be 32 mps 38 mps or is it a range? so would it be anywhere between 32-38 mps. Or is it just plus or minus the 3mps and if this is the case how would it be worked out if its plus or minus when all the numbers will be a positive numbers as any negative numbers are deemed inaccurate ?
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66
Apr ’25
[CoreLocation][iOS 18.3.2] OS is not notifying monitored region state to application
We have an application. We are monitoring the fence event. We are using 'startMonitoringForRegion' API. but we are not getting any fence event. Steps Create a fence using 'startMonitoringForRegion' API BG on APNS trigger. initial fence state 'didDetermineState' not received. From Syslogs we can see OS has detected but event is not given to Application We are compiling code using SDK18.0 Error ** locationd Fence: LAC monitoring is not sufficient for / ocationd Fence: no allowing wifi monitor for, 400.0, fence Feedback Ticket ID: FB17250308 Syslogs Snippet: debug 2025-04-15 12:45:40.890193 -0500 locationd FenceCal: combine non-fine non-large fence, distance, 0.0, / //OS detetected fence state default 2025-04-15 12:45:44.706232 -0500 locationd Fence: fenceUpdate, , bundle, , type, GPS , loc, 33.1171776, -96.6606076, acc, 19, distance, 17, tech, LC...+, trans, 0, state, 0, cont, 1, fence, 33.11728835, -96.66048288, 1011.0, 766431742.6, sCount, 0, 0, trig, 0, 3, sinceLastLoc, 10.0, events, 0x00001810, status, (Inside) => (Inside) , settled state, (Unknown) ==> (Unknown), cantShiftButNeedTo, 0, sinceLastTransition, -1.0, significant, 0, loi, 0, lastProximityStateTimestamp, -1.000000, lastProximityState, 0, lastApproachingState, 0 // debug 2025-04-15 12:45:44.706247 -0500 locationd Fence: LAC monitoring is not sufficient for / // debug 2025-04-15 12:45:44.706263 -0500 locationd Fence: no allowing wifi monitor for, 400.0, fence, Fence, []//, latitude, 33.11728835, longitude, -96.66048288, refFrame, 0, distance, 1011.0, eFistance, 1011.0, lDown, -1.0, time, 766431742.6, ctime, -1.0, flags, EX------, key, -1506186373, throttled, N, polygon, 0, envType, 2, locType, 0
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152
Apr ’25
GPS HDOP
I have a marine navigation app which displays GPS quality information when receiving NMEA message from an external GPS. These include the number of satellites and Horizontal Dilution of Precision (HDOP). As far as I can see, the only additional information available through location services (for devices with built in GPS) is horizontal and vertical accuracy. Am I missing anything? Also does anyone know how horizontal accuracy is derived from HDOP?
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101
Jun ’25
[MapKit] Initialization failed because the authorization token is invalid.
When I try to import mapkitjs using HTML, I use the correct token, but the error token is invalid. <!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>地点信息查询</title> <style> body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif; margin: 0; padding: 20px; background-color: #f5f5f7; } .container { max-width: 800px; margin: 0 auto; } .search-box { width: 100%; padding: 10px; margin-bottom: 20px; border: 1px solid #ccc; border-radius: 8px; font-size: 16px; } .result-container { background: white; padding: 20px; border-radius: 12px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); } .place-image { width: 100%; max-height: 300px; object-fit: cover; border-radius: 8px; margin-bottom: 15px; } .place-info { margin-top: 15px; } .place-info h2 { margin-top: 0; color: #1d1d1f; } .info-item { margin: 10px 0; color: #515154; } #map { width: 100%; height: 300px; border-radius: 8px; margin-top: 20px; } </style> </head> <body> <div class="container"> <h1>地点信息查询</h1> <input type="text" id="searchInput" class="search-box" placeholder="请输入地点名称(如:北京故宫)"> <div class="result-container"> <div id="placeImage"></div> <div class="place-info"> <h2 id="placeName"></h2> <div id="placeDetails"></div> </div> <div id="map"></div> </div> </div> <script src="https://cdn.apple-mapkit.com/mk/5.x.x/mapkit.js"></script> <script> // 初始化 MapKit mapkit.init({ authorizationCallback: function(done) { done('mytoken'); }, language: 'zh-CN', region: 'CN', callback: function(error) { if (error) { console.error('MapKit 初始化错误:', error); alert('地图服务初始化失败,请检查网络连接和授权设置'); } else { console.log('MapKit 初始化成功'); } } }); // 添加错误处理 window.addEventListener('error', function(event) { console.error('MapKit 错误:', event.error); }); const searchInput = document.getElementById('searchInput'); const placeImage = document.getElementById('placeImage'); const placeName = document.getElementById('placeName'); const placeDetails = document.getElementById('placeDetails'); const mapDiv = document.getElementById('map'); let map; searchInput.addEventListener('input', debounce(searchPlace, 500)); function debounce(func, wait) { let timeout; return function executedFunction(...args) { const later = () => { clearTimeout(timeout); func(...args); }; clearTimeout(timeout); timeout = setTimeout(later, wait); }; } async function searchPlace() { console.log('搜索'); const query = searchInput.value; if (!query) return; try { // 使用 MapKit 搜索地点 const search = new mapkit.Search({ region: new mapkit.CoordinateRegion( new mapkit.Coordinate(39.9042, 116.4074), // 默认北京坐标 new mapkit.CoordinateSpan(0.1, 0.1) ) }); search.search(query, (error, data) => { if (error) { console.error('搜索错误:', error); return; } if (data.places.length > 0) { const place = data.places[0]; displayPlaceInfo(place); showMap(place); } }); } catch (error) { console.error('获取地点信息失败:', error); } } function displayPlaceInfo(place) { placeName.textContent = place.name; let detailsHTML = ''; if (place.address) { detailsHTML += `<p class="info-item">地址: ${place.address}</p>`; } if (place.phoneNumber) { detailsHTML += `<p class="info-item">电话: ${place.phoneNumber}</p>`; } if (place.url) { detailsHTML += `<p class="info-item">网址: <a href="${place.url}" target="_blank">${place.url}</a></p>`; } placeDetails.innerHTML = detailsHTML; // 获取地点图片 if (place.pointOfInterestCategory) { // 这里可以调用其他图片API来获取地点图片 // 示例使用占位图片 placeImage.innerHTML = `<img src="https://source.unsplash.com/800x400/?${encodeURIComponent(place.name)}" class="place-image" alt="${place.name}">`; } } function showMap(place) { if (map) { map.remove(); } map = new mapkit.Map(mapDiv, { region: new mapkit.CoordinateRegion( place.coordinate, new mapkit.CoordinateSpan(0.01, 0.01) ) }); const annotation = new mapkit.MarkerAnnotation(place.coordinate, { title: place.name, data: { place: place } }); map.addAnnotation(annotation); } </script> </body> </html>
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102
Apr ’25
How can I prevent virtual location from affecting the security of my app
Hello, I have noticed that some users have modified their real location through an app called "MGU" to bypass my app's security checks. I want to know how to protect my app and detect users using virtual location. I have reproduced the process of virtual positioning here: Insert a plug-in through the interface at the bottom of the phone and connect it via Bluetooth on the phone Set the desired positioning target on the "MGU" app Turn off your phone's WiFi, network, and location for 10 seconds, then turn it back on At this point, virtual positioning is successful. Please assist me in troubleshooting this issue and inform me of the principle of implementing virtual positioning in this app and how to prevent it. The following is the screen recording of virtual positioning operation: https://flowus.cn/share/145b3232-26c3-4ea3-b3ff-4aad1495eb4d
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119
Apr ’25