I am developing an iOS app that uses CLLocationManager to collect location continuously in both foreground and background. But it has the following 4 issues and I don’t understand why:
After a while of not using the app, I can not get location updates regularly. Even after that, I go into the app more often or even turn OFF and turn ON the permission again, but the problem still doesn’t improve until I reinstall the app.
Previously, I used SilentLog SDK to collect location. Since the cost was quite high, we developed our own SDK that also handles location tracking. After updating the app from the old version using SilentLog SDK to the new version using my own SDK, I can not get location updates regularly. However, when I reinstalled the app, it worked perfectly.
It seems that apps downloaded from TestFlight can get location more continuously than apps downloaded from the App Store
We sometimes encounter this error in the logs:
Error Domain=kCLErrorDomain Code=0 “(null)”
I think my app was not terminated in the background because I still collect location but it is not as frequent. I want to know if Apple has any mechanism to prevent such apps from getting location data continuously?
I use CLLocationManager with the following configuration:
self.locationManager.distanceFilter = 20
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.locationManager.allowsBackgroundLocationUpdates = true
self.locationManager.showsBackgroundLocationIndicator = false
self.locationManager.pausesLocationUpdatesAutomatically = false
I also filter the location updates using:
guard let location = locations.last else { return }
guard location.horizontalAccuracy <= 100 else { return }
guard location.speedAccuracy >= 0 else { return }
I use a background task to wake up the device every 15 minutes, and I also use silent push notifications in a similar manner. Each time the task is executed, I usually call stopLocation and then startLocation again. This happens quite frequently — will it have any impact or cause any issues?
Maps & Location
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Hello,
I'm experiencing an issue with the Apple Maps URL scheme when using raw latitude and longitude coordinates in the daddr parameter.
Until recently, using a URL like this worked reliably:
https://maps.apple.com/?daddr=37.7749,-122.4194
This would open Apple Maps and show directions from the current location to the specified coordinates.
However, on recent iOS versions, this URL no longer behaves as expected.
In the last few months we have seen a lot of the following errors in which it fails to retrieve location information. This seems to happen across multiple browsers and feels related to apple/mac OS more than the browsers.
Error: "CoreLocationProvider: CoreLocation framework reported a kCLErrorLocationUnknown failure."
Any suggestions or an ETA on when this can be fixed? I have seen other threads/posts on this but wanted a new one to highlight the issue is prevalent.
We have a setup that's really close to the one used in the example project - Monitoring location changes with Core Location.
In short, we have a flag that indicates whether or not we should start background location monitoring. If the flag is on, after the app starts, we
Create a CLServiceSession with authorization: .always
Create a CLBackgroundActivitySession
The user can perform an action (press a button) to toggle the flag off, in which case we invalidate and dispose of the CLServiceSession and CLBackgroundActivitySession instances and cancel any liveUpdates observation.
So far, so good, everything works as expected.
However, we're experiencing a weird behavior on iPhones with Dynamic Island after there's an app update.
When the user is on the same app version, the behavior is correct.
have the flag on,
background location monitoring works fine,
when the app is in the the background, there's correctly a location indicator in Dynamic Island
the user can go back to the app and turn the flag off (disposing of instances, cancelling location observation), and when the app is in the background, there is no location indicator in Dynamic Island
The problem arises when the user updates the app
open version 1.0 of the app
have the flag on,
background location monitoring works fine,
when the app is in the the background, there's correctly a location indicator in Dynamic Island
download an app update - version 2.0
the app restarts, didFinishLaunchingWithOptions gets called again and we start the background services
dynamic island indicator is correctly showing a location indicator
the user goes into the app, toggles the flag off - turning location observation off, we dispose of everything
now, when the app is moved to the background, there's still a location indicator in the Dynamic Island, even though we're no longer observing location
The indicator is hard to get rid of, there are only 2 ways we've found
restart the device, or
uninstall the app
The question is - is this a bug in the system? Or is there anything we should be doing actively after an app update?
Thank you!
Hello,
I'm encountering a runtime crash when building my visionOS app with Xcode 16.3 for visionOS 2.5. Our existing AppStore/Testflight app is also instantly crashing on visionOS 2.5 when opened but works fine on e.g visionOS 2.4.
The app builds successfully but crashes on launch with this symbol lookup error (slightly adjusted because the forum complained regarding sensitive data):
Symbol not found: _$sSo22CLLocationCoordinate2DVSE12CoreLocationMc
Referenced from: <XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX> /private/var/containers/Bundle/Application/XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX/MyApp.app/MyApp.debug.dylib
Expected in: <XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX> /usr/lib/swift/libswiftCoreLocation.dylib
dyld config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/usr/lib/libLogRedirect.dylib:/usr/lib/libBacktraceRecording.dylib:/usr/lib/libMainThreadChecker.dylib:/System/Library/PrivateFrameworks/GPUToolsCapture.framework/GPUToolsCapture:/usr/lib/libViewDebuggerSupport.dylib
I've already implemented my own Codable conformance for CLLocationCoordinate2D:
extension CLLocationCoordinate2D: Codable {
// implementation details...
}
This worked fine on previous visionOS/Xcode versions. Has anyone encountered this issue or found a solution?
System details:
macOS version: 15.3.2
Xcode version: 16.3
visionOS target: 2.5
Thank you!
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
Hello (:
I’m working with MapKitJS and would like to render polylines that follow roads — similar to the behavior seen on maps.apple.com. While I can align polylines to roads manually, I haven’t found a way to render them below street names and road shields. Currently, all polylines appear above labels, which reduces readability when displaying routes in urban areas.
On maps.apple.com, polylines are rendered under street labels, which provides a much cleaner appearance. Is there a way to achieve this layering behavior in MapKitJS? If not, are there plans to support this kind of layer control in the future?
Thanks in advance!
MapKitJS (5.45.0):
maps.apple.com:
Hello (:
I have a question regarding the current pricing model for Apple Maps APIs, specifically MapKitJS, the Maps Snapshot API, and the Maps Server API. Previously, the documentation and my understanding indicated that the usage limits were defined per day — for example, 250,000 map loads per day for MapKitJS and 25,000 snapshots per day. However, in the Apple Developer Dashboard, I’m now seeing these limits shown on a per-month basis, such as only 25,000 snapshots per-month. This appears to contradict the publicly available information on the official website, which still states daily limits. Has the pricing model officially changed, or is this just a display issue in the dashboard?
I need to know this because we're going into release soon, and then we might have thousands of users.
Topic:
App & System Services
SubTopic:
Maps & Location
Tags:
Maps Web Snapshots
MapKit JS
Apple Maps Server API
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>
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?
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
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 ?
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.
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!
I'm working on an app that uses MapKit and CoreLocation. Is there a way to specify what location is simulated for a Preview, or create a preview that behaves as if the user denied location permissions, so that I can easily test my app's behavior in different scenarios? I know that you can simulate different locations in the Simulator, but haven't been able to get the previews within Xcode to have a location other than the center of Apple Park.
Hello,
Is it possible to retrieve URLs (the URL associated for the specified location) for the Place object when you query the Apple Maps Server APIs? They are available when you make a MKLocalSearch.Request() directly in Swift. We have both iOS and Android apps, and it's not currently possible to get the URLs on Android.
Thanks!
Waze is not available in the home screen icons for selection in CarPlay. I just reloaded Waze when it disappeared as a selectable icon. How can it be restored?
Topic:
App & System Services
SubTopic:
Maps & Location
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()
}
Topic:
App & System Services
SubTopic:
Maps & Location
Tags:
Swift Playground
Swift
MapKit
Maps and Location
Hey All,
Seem to be in a loop and unable to proceed.
New app specific for iOS being built on xCode. Project is configured only to deploy and use iOS, not macOS or anything else.
Trying to create a new App iD always see it default to all platforms which means "Background Modes" is not visible or available.
Automatic signing etc in xcode can't seem to get around this and just continues to flag I'm missing the entitlement for locations.background.
Not sure what I am missing as I cannot manually configure the ID for iOS only and xcode is also generating new ID's with the same platform structure and constraints.
Any thoughts or insights here please?
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.