I have some questions about the changes that the latest IOS doesn't act (scanning or monitoring) for our custom beacon devices.
Since about 2015, We has provided some 'location based service' by using our custom iBeacon devices.
However We've just realized that the latest IOS devices doesn't work with our custom iBeacon devices.
but also realized It could still work with the other normal iBeacon devices.
So, I've dig this issues for a while and finally I got the answer. It's because the one byte of Ibeacon advertsing packet payload.
the followings are the differences about manufacturer data part between a normal Ibeacon and our custom beacon.
normal Ibeacon
0xFF 0x4C00 0x02 0x15 0x736E75685F70656F706C655F74656331 0xEA61 0x03EB 0xC5
our custom Ibeacon
0xFF 0x4C00 0x02 0x15 0x736E75685F70656F706C655F74656331 0xEA61 0x03EB 0xC5 0xDA
Yes, I know.
after many of searches and research,
Now I've understood the byte (meaning the length of following payload) should be changed as '0x16'.
But It is certainly something that has worked well not so long ago.
Anyway,
The introduction was so long, but this is the one question what I'd like to ask about.
I need to know exactly which version of IOS this change came from.
(I've tried but I couldn't find any thing about this on the official documents.)
I need to expaing to my customers what's going on.
for that, I need the information that exactly which version of IOS It didn't work from.
Thanks in advance.
Regards.
Maps & Location
RSS for tagLearn how to integrate MapKit and Core Location to unlock the power of location-based features in your app.
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Hi,
I'm building an aftermarket solution to enable Apple Maps to support EV routing for any EV.
I am going through the documentation and found some gaps - does anyone know how the following properties work?
INGetCarPowerLevelStatusIntentResponse - consumptionFormulaArguments
INGetCarPowerLevelStatusIntentResponse - chargingFormulaArguments
Is there a working example that anyone has seen?
Many thanks
I am working on an iOS app where I need to detect when a user starts and stops driving using the Apple Core Motion framework. I've implemented the following MotionActivityManager class to handle activity updates and display the detected states in a SwiftUI view.
While I can accurately detect "Stationary" and "Walking" states, detecting the "Driving" (Automotive) state has been unreliable. The accuracy often fails, and the framework frequently misclassifies driving as other states like "Unknown" or "Walking."
Here's the implementation:
@Published var motionStates: [MotionState] = []
@Published var startDate: String = ""
@Published var confidence: String = ""
init() {
setupDefaultStates()
startActivityUpdates()
}
private func setupDefaultStates() {
motionStates = [
MotionState(label: "Stationary", value: false),
MotionState(label: "Walking", value: false),
MotionState(label: "Running", value: false),
MotionState(label: "Automotive", value: false),
MotionState(label: "Cycling", value: false),
MotionState(label: "Unknown", value: false)
]
}
func startActivityUpdates() {
guard CMMotionActivityManager.isActivityAvailable() else {
print("Motion activity is not available.")
return
}
motionActivityManager.startActivityUpdates(to: .main) { [weak self] motion in
guard let self = self, let motion = motion else { return }
DispatchQueue.main.async {
self.updateProperties(with: motion)
}
}
}
private func updateProperties(with motion: CMMotionActivity) {
motionStates = [
MotionState(label: "Stationary", value: motion.stationary),
MotionState(label: "Walking", value: motion.walking),
MotionState(label: "Running", value: motion.running),
MotionState(label: "Automotive", value: motion.automotive),
MotionState(label: "Cycling", value: motion.cycling),
MotionState(label: "Unknown", value: motion.unknown)
]
startDate = dateFormatter.string(from: motion.startDate)
switch motion.confidence {
case .low:
confidence = "Low"
case .medium:
confidence = "Medium"
case .high:
confidence = "High"
@unknown default:
confidence = "Unknown"
}
}
}
struct MotionState: Identifiable {
let id = UUID()
let label: String
let value: Bool
}
struct ContentView: View {
@StateObject private var motionManager = MotionActivityManager()
var body: some View {
ScrollView {
VStack(spacing: 16) {
ForEach(motionManager.motionStates) { state in
LabelView(label: state.label, value: state.value ? "True" : "False")
}
LabelView(label: "Confidence", value: motionManager.confidence)
}
.padding()
}
.onAppear {
UIApplication.shared.isIdleTimerDisabled = true
motionManager.startActivityUpdates()
}
.navigationTitle("Motion Activity")
}
}
Issues:
The motion.automotive state is often not detected accurately.
The confidence level remains low for the automotive state, even when the device is clearly in a car.
How can I improve the detection accuracy of the "Driving" state using the Core Motion framework?
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
I am writing to address a concern regarding the background permission functionality in my app, which is critical for ensuring user safety as they navigate various terrains. This feature also enables users to smoothly record their navigation tracks for review after their activities. Recently, I've noticed that this functionality is not working as seamlessly as before.
Additionally, I observed that the app is not categorized under 'health and fitness'—could reclassifying it improve background activity? Before I delve into a detailed code review, I wanted to check if this issue might be related to sync or settings on the App Store side, such as permission configurations, app updates, or other related factors. Or, is it more likely an issue stemming from the app’s codebase?
I have a test application I'm working on (so it's a fresh Xcode project under Sonoma - with older map code borrowed from another project). It is a macOS application. And in Obj-C.
When the map window is opened the logs contain the following - I've been trying to hunt down and resolve. Thank you in advance for any clues/pointers.
Failed to locate resource "default.csv"
Failed to locate resource "satellite@2x.styl"
Failed to locate resource "satellite@2x.styl"
Failed to locate resource "satellite.styl"
Failed to locate resource "satellite@2x.styl"
Failed to locate resource "satellite@2x.styl"
Failed to locate resource "satellite.styl"
Failed to locate resource "satellite.styl"
Couldn't find satellite.styl in framework, file name satellite.styl
Authorization status: Authorized
The application does have MapKit.framework included.
If I change MKMapView's .preferredConfiguration property from .realistic to .flat, or .mapType from .hybridFlyover to .hybrid, subsequent scrolling causes a crash:
-[MTLDebugRenderCommandEncoder validateDrawIndexedPrimitives:indexCount:indexType:indexBuffer:indexBufferOffset:instanceCount:function:]:6179: failed assertion `Draw Indexed Primitives Validation
indexBufferOffset(0) + (indexCount(864) * 2) must be <= [indexBuffer length] (12).
For example, changing:
mapView.preferredConfiguration = MKHybridMapConfiguration(elevationStyle: .realistic)
to:
mapView.preferredConfiguration = MKHybridMapConfiguration(elevationStyle: .flat)
Then, scroll the map view, and it will crash. It is OK the other way around.
Or change:
self.mapView.mapType = .hybridFlyover
to:
self.mapView.mapType = .hybrid
I've tried everything I can think of, including calling functions like these after the change:
mapView.setNeedsDisplay()
mapView.setRegion(self.mapView.region, animated: false)
.mapType and .preferredConfiguration are settable properties, so they should be possible to change. I could create a new MKMapview, but I'd have to perfectly recreate the state which is not trivial and far from ideal.
I'm just trying to work around the issue FB14553276 so my map tiles don't show tiling seems in 2D which is a new issue introduced with iOS 18. This potential workaround still shows the seems in 3D, but is better than always showing seems. Seems like whatever I do, I just can't defeat MapKit bugs and puts me in an impossible situation. :(
I've submitted Feedback this issue: FB16153802
It seems like others are experiencing the issue:
https://forums.developer.apple.com/forums/thread/730780
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)
}
}
}
We’ve set up an advanced App Clip experience that successfully launches when a user scans our QR code. However, the same App Clip invocation URL does not launch when tapping the associated Action Link on our Apple Place Card in Apple Maps. Instead of opening the App Clip, the link falls back to the website.
What We Have Done So Far:
App Clip Launched in App Store Connect: Our App Clip is approved and live on the App Store. Here is the invocation URL: https://appclip.parkzenapp.com/park?q=oJrbSIgx
Below is the QR code for our Advanced App Clip experience we are attempting to open in our Apple Maps Place card
When scanning the QR code that uses the same App Clip invocation URL, the App Clip reliably launches as expected. Here is our apple-app-site-association file, thats correctly served from the associated domain: https://appclip.parkzenapp.com/.well-known/apple-app-site-association
Add here is a screenshot showing how the appclip.parkzenapp.com domain is correctly validated.
Advanced App Clip Experience: We created and submitted an advanced App Clip Experience specifically tied to our location on Apple Maps. This App Clip Experience is approved and live. Below is an image of our set up of this Advanced App Clip Experience
Business Connect: We've created the Apple Maps Location in business connect and added the advanced App Clip experience invocation URL as an Action Link in the place card. See screenshot below.
Apple Maps Place:
https://maps.apple.com/place?auid=906421750045811407
Despite meeting these conditions, when a user taps the Action Link (the "Reserve" button in the Apple Maps Place Card), the fallback website opens rather than the App Clip.
Question:
What additional step or configuration might we be missing to ensure the Action Link on our Apple Maps place card triggers the App Clip instead of the website?
Thank you
Having multiple issues with google maps via wireless apply car play.
1.: maps freezing
2.:The direction I’m heading seems to be off and searching some times
3.: The most annoying, the audio doesn’t work when I’m using google maps for a trip.
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?
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
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
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.
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.
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.
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?
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.
I have implemented geofencing using CLMonitor.
The implementation follows this general structure:
private var monitorTask: Task<Void, Never>?
private var backgroundSession: CLBackgroundActivitySession?
func start() async {
backgroundSession = CLBackgroundActivitySession()
monitorTask = Task {
do {
let monitor = await CLMonitor("monitor")
for try await event in await monitor.events {
handleEvent(event: event)
}
} catch {}
}
}
func addSpot() async {
let monitor = await CLMonitor("monitor")
let center = CLLocationCoordinate2D(latitude: 0, longitude: 0)
let condition = CLMonitor.CircularGeographicCondition(center: center, radius: 100)
await monitor.add(condition, identifier: "sample-1")
}
When the app is not task-killed, the code inside handleEvent executes as expected.
However, after a user-initiated task kill, the functionality does not work properly.
After upgrading to iOS 18.1, apple maps is really slow. I thought it was the app so I switched to google maps and same issue. I have tried all (including reseting the iPhone) but it did not fix it. I had iPhone 15 proMax, but since nothing worked, I upgraded to i16 but .... nothing.
Any idea on how to get it fixed?