Note: I have had issues with CMAltimeter since whats seems to have been a major undocumented modification since iOS 17.4.
So I'm using the CMAltimeter absolute locations delivery.
Sometimes, the altimeter seems to be in an uncalibrated mode and therefore, no altitude delivery happens.
Is there a way to be inform of such state? Currently, it just doesn't work and I can't inform the user about this. They just think the app is broken
What message should I give to the users to accelerate the calibration such that the CMAltimeter will work again?
Also, users have reported that the CMAltimeter can temporarily stop delivering altitude updates, even though it should.
So I guess my question resumes to this:
Whats the best practice to handle an uncalibrated CMAltimeter?
Thanks!
Delve into the world of built-in app and system services available to developers. Discuss leveraging these services to enhance your app's functionality and user experience.
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Hi there,
This is my first time posting here. I'm working on small projects on Swift and SwiftUI now and then. I'm currently trying to develop an application that gets some bus arrival data using API and displaying them with live activities. The thing is that I'm not quite sure how frequently updates work yet. Still trying to figure out if I can update the live activity everytime the data coming right from the API changes or use push notification updates each minute passing by, but that is another thread that I'm going to focus with more details.
Everytime i'm trying to deploy my app on my iphone or a simulator this error keeps popping up and I can't figure out why.
Any ideas? Let me know if you need any snippet of my code.
SendProcessControlEvent:toPid: encountered an error: Error Domain=com.apple.dt.deviceprocesscontrolservice Code=8 "Failed to show Widget 'com.gregorikouk.MapKitTut.BusWidgetKit' error: Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.apple.springboard" failed." UserInfo={NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., BSErrorCodeDescription=RequestDenied, NSUnderlyingError=0xb1282dfe0 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)}}, FBSOpenApplicationRequestID=0xe5da, NSLocalizedDescription=The request to open "com.apple.springboard" failed.}." UserInfo={NSLocalizedDescription=Failed to show Widget 'com.gregorikouk.MapKitTut.BusWidgetKit' error: Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.apple.springboard" failed." UserInfo={NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., BSErrorCodeDescription=RequestDenied, NSUnderlyingError=0xb1282dfe0 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)}}, FBSOpenApplicationRequestID=0xe5da, NSLocalizedDescription=The request to open "com.apple.springboard" failed.}., NSUnderlyingError=0xb1281d830 {Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.apple.springboard" failed." UserInfo={NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., BSErrorCodeDescription=RequestDenied, NSUnderlyingError=0xb1282dfe0 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)}}, FBSOpenApplicationRequestID=0xe5da, NSLocalizedDescription=The request to open "com.apple.springboard" failed.}}}
Domain: DTXMessage
Code: 1
User Info: {
DVTErrorCreationDateKey = "2023-10-02 21:06:04 +0000";
}
--
System Information
macOS Version 14.0 (Build 23A344)
Xcode 15.0 (22265) (Build 15A240d)
Timestamp: 2023-10-03T00:06:04+03:00
Topic:
App & System Services
SubTopic:
Notifications
Tags:
APNS
Notification Center
WidgetKit
ActivityKit
I had a standalone python application (created with pyinstaller) which was working perfectly alone. This macOS application was created in VS. I later decided to improve the application by implementing some Swift features (Subscription Manager). This required me to write a brief Swift file (Subscription Management) in XCode which the Python file called on.
Python Standalone Application Calling Swift :
# Function to check if the user has a valid subscription
def check_subscription():
subscription_manager_path = "/Users/isseyyohannes/Library/Developer/Xcode/DerivedData/SubscriptionManager2-ezwjnnjruizvamaesqighyoxljmy/Build/Products/Debug/SubscriptionManager2" # Adjust path
try:
result = subprocess.run([subscription_manager_path], capture_output=True, text=True, check=True)
return "VALID_SUBSCRIPTION" in result.stdout # Return True if valid, False otherwise
except subprocess.CalledProcessError as e:
print(f"Error checking subscription: {e}")
return False # Return False if there's an issue
However, when I try to run xcrun altool --validate-app ... I get the following error message.
The error reads as follows
Running altool at path '/Applications/Xcode.app/Contents/SharedFrameworks/ContentDeliveryServices.framework/Frameworks/AppStoreService.framework/Support/altool'...
2025-02-16 11:02:21.089 *** Error: Validation failed for '/Users/isseyyohannes/Desktop/ALGORA Performance.app'.
2025-02-16 11:02:21.089 *** Error: Could not find the main bundle or the Info.plist is missing a CFBundleIdentifier in ‘/Users/isseyyohannes/Desktop/ALGORA Performance.app’. Unable to validate your application. (-21017)
{
NSLocalizedDescription = "Could not find the main bundle or the Info.plist is missing a CFBundleIdentifier in \U2018/Users/isseyyohannes/Desktop/ALGORA Performance.app\U2019.";
NSLocalizedFailureReason = "Unable to validate your application.";
I located the Info.plist file which had everything correct (my Bundle ID, etc.) for the python file. I am successfully able to notarize the application, just having issues submitting it.
**It is worth noting I currently have a python executable calling on a file written in swift code and created in xcode.
I created the python application with the following command on VS.
pyinstaller --onefile --noconsole \
--icon="/Users/isseyyohannes/Downloads/E0BWowfbDkzEiEAckjsHAsYMzpdjjttT.icns" \
--codesign-identity "Developer ID Application: Issey Yohannes (GL5BCCW69X)" \
--add-binary="/Users/isseyyohannes/Library/Developer/Xcode/DerivedData/SubscriptionManager2-ezwjnnjruizvamaesqighyoxljmy/Build/Products/Debug/SubscriptionManager2:." \
--osx-bundle-identifier com.algora1 \
/Users/isseyyohannes/Desktop/ALGORA\ Performance.py
Note : All steps on Apple Developer site are done (ex. Creating identifier, secret password etc)
My application advertises service uuid FC66 and 00410b66-2553-48d7-cf18-000000002154 in advertising data, and "loading" as local name in response data in foreground.
But iOS cut local name to "loadi" and add Hashed UUID data 0100000000000000000000000600000000 to response data.
Why iOS add hashed uuid data? Is it because my 128-bit uuid format is wrong?
We want to advertise the complete local name data.
How to avoid this problem?
I have an app that I'm using for my own purposes and is not in the app store. I would like to run an http server in the background for more than the allotted 3 minutes to allow persistent communications with a connected Bluetooth device. The Bluetooth device would poll the service at intervals. Is this possible to do? This app does not need app store approval since it's only for personal use.
Topic:
App & System Services
SubTopic:
Processes & Concurrency
Tags:
Foundation
IOBluetooth
Core Bluetooth
Hello,
es_event_mount_t includes statfs structure. This structure has the field 'f_type' which defines type of filesystem. However, man page says nothing about possible values of this field.
What is the best way to define file system type?
Can I use 'f_type' or 'f_fstypename'? If so, are there any constants in header files which can be used?
Thank you for your help!
I'm using the iOS simulator with a StoreKit configuration file. I can see that there have been transactions while the app has been closed, but my StoreKit 2 listener is never called with those updates to be able to finish them When I open my app from a cold start.
I've added a listener on application(_:didFinishLaunching:launchOptions:) like this:
func startObservingTransactions() {
task = Task(priority: .background) {
for await result in Transaction.updates {
if case .verified(let transaction) = result {
await transaction.finish()
}
}
}
}
But the Transaction.updates loop never gets called (have added breakpoints to check). It's only ever called when a purchase is made, or subsequent transaction renewals when the app is open. Only then it will get the previously unfinished transactions.
Steps to reproduce:
Create an app with a StoreKit config file (with sped up transactions) to purchase an item
Make a purchase then quit the app
Wait for a bit for more transactions to be made while the app is closed.
Open the app from a cold start and none of the transactions will be finished by the listener in your app. Cancel the subscription via the transaction manager.
Close and open the app from a cold start. The first transaction will be finished by the listener but none of the others will be.
In Apple's docs it says
If your app has unfinished transactions, the listener receives them immediately after the app launches
Why is this not the case?
I am developing an Xcode app with a job feed, with profile view, with chat eg. I fetch using federatet queries to my microservices thru Apollo Router. Infront of the Apollo Router i Have a Kong that adds a X user ID, that the microservices use for personalized feed and other user info. The info is stored with SwiftData. My thought is that i should add a better way of controlling when i need to fetch. I have a “lastupdateAPI” with different entities (profile, profile picture eg). So when nothing has changed we do not fetch. But rather then using a own API for this, isnt ETag better? Or is it any other recommendations with Xcode Swiftui. Good strategies for not fetching what i already have?
Topic:
App & System Services
SubTopic:
Networking
I'm using NETransparentProxyProvider to intercept udp sockets using the method handleNewUDPFlow. An application may create a UDP socket and set the DONTFRAG using setsockopt method
setsockopt(s, IPPROTO_IP, IP_DONTFRAG, &val, sizeof(val))
In this case, do I have option in this case, to get the connection settings inside the callback
(void)handleNewUDPFlow:(NEAppProxyUDPFlow *)flow initialRemoteEndpoint:(NWEndpoint *)remoteEndpoint;
So in this case, I would be able to create the outgoing socket with the exact same characteristics, after the original app socket got intercepted by my proxy provider ?
Hi everyone,
I’m developing an app called FindMyNet that allows users to find the best internet provider based on their postal code (CAP). The app is built with Xcode and the macOS simulator. I’ve set up a FastAPI backend that communicates with an Excel database containing internet provider data for each postal code.
Unfortunately, when I try to run the app, I encounter an error that prevents me from retrieving data from the database and displaying the correct provider.
Task <6B5C86B6-181A-4235-AE68-23AAF6645683>.<1> finished with error [1] Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted" UserInfo={_NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask <6B5C86B6-181A-4235-AE68-23AAF6645683>.<1>, _kCFStreamErrorDomainKey=1, _kCFStreamErrorCodeKey=1, _NSURLErrorRelatedURLSessionTaskErrorKey=( "LocalDataTask <6B5C86B6-181A-4235-AE68-23AAF6645683>.<1>" ), _NSURLErrorNWPathKey=satisfied (Path is satisfied), interface: en0[802.11], ipv4, dns, uses wifi}
Problem description:
• The FastAPI backend is running on a Raspberry Pi and communicates with the app via an HTTP request.
• When I enter a postal code, the app should return the best provider for that region, but I only get a 500 error.
• I’ve verified that the FastAPI server is running, but it seems there’s an issue with communication between the app and the server.
Steps taken so far:
• I’ve checked the logs on the FastAPI server, but there are no obvious errors.
• I’ve manually tested the API using Postman, and it works fine, so the issue seems to be app-side.
Support request:
I’d like to understand better what could be causing this error and if anyone has had similar experiences. Any advice on diagnosing the problem or solutions for resolving it would be greatly appreciated.
Thanks in advance for your help!
Topic:
App & System Services
SubTopic:
Networking
right now it looks like the app type must follow the guidelines like Messenger app, Navigate app, and Music app only. What about the Automotive app itself, What is the flexibility of it?
We have an app for service cars for one brand (officially)(car users around 1m+). but we looking to merge the experience between outside the car and inside the car. Can we top up some features on the app to share some information that is a part of the car like trip calculation or car info display on the screen? or services time to notice them?
And following that question can we know about the exact spot or brief from Apple car play for now and next-gen?
Or can we work with your team closely as a partner? to make things happen and develop it to be a flagship product, we can share some data and talk about it with real insight.
Purpose
I want to use launchd to run a shell script asynchronously every minute, but I'm encountering an issue where the job does not run, and I receive the error "Bootstrap failed: 5: Input/output error". I need help identifying the cause of this issue and how to configure launchd correctly.
What I've done
Created the shell script (test_ls_save.sh)
The script is designed to list the contents of the desktop and save the output to a specified directory.
#!/bin/bash
DATE=$(date +%Y-%m-%d_%H-%M-%S)
SAVE_DIR=/Users/test/Desktop/personal/log_gather
FILE_NAME="ls_output_$DATE.log"
ls ~/Desktop > "$SAVE_DIR/$FILE_NAME"
echo "ls output saved to $SAVE_DIR/$FILE_NAME"
File permissions (ls -l output): -rwxr-xr-x 1 test staff 1234 Feb 17 10:00 /Users/test/Desktop/personal/log_gather/exec/test_ls_save.sh
Created the launchd plist file (com.test.logTest.plist)
The plist file is configured to execute the shell script every minute.
<key>Label</key>
<string>com.test.logTest</string>
<key>ProgramArguments</key>
<array>
<string>/bin/bash</string>
<string>-c</string>
/Users/test/Desktop/personal/log_gather/exec/test_ls_save.sh
</array>
<key>StartInterval</key>
<integer>60</integer> <!-- Run every minute -->
File permissions (ls -l output): -rwxr-xr-x 1 test staff 512 Feb 17 10:00 /Users/test/Library/LaunchAgents/com.test.logTest.plist
Ran the job with launchctl
I used the following command to load the plist file into launchd:
sudo launchctl bootstrap gui/$(id -u) /Users/test/Library/LaunchAgents/com.test.logTest.plist
pc spec
MacBook Pro
Apple M1
16 GB RAM
macOS 15.3 (Build 24D60)
what I know
The configuration has been set, but the launchd job is not running every minute as expected.
I don't believe there is a mistake with the path.
When I check the job using launchctl list, the job does not appear in the list.
I don't know where the error log files are supposed to be. I checked /var/log/system.log, but there are no error logs.
The .sh file runs fine by itself, but it cannot be executed via launchctl.
Want to ask
What could be the cause of the launchd job not running as expected?
Also, is there a way to check where the logs are being output?
If there is an error in the plist file configuration, which part should be modified?
Specifically, what improvements should be made regarding environment variables and path settings?
If my information is not enough, please tell me what is not enough!
When I run my app with XCode on my iPhone, and then moved into the background, I'm getting a EXC_BREAKPOINT exception after a few minutes, seemingly when iOS attempts to call my app with a BGAppRefreshTask:
Thread 23 Queue: com.apple.BGTaskScheduler (com.mycompany.MyApp.RefreshTask) (serial)
0 _dispatch_assert_queue_fail
12 _pthread_wqthread
Enqueued from com.apple.duet.activityscheduler.client.xpcqueue (Thread 23)
0 dispatch_async
20 start_wqthread
I can't quite understand the reason from this crash. In the background task, I'm attempting to update live activities. In the process, it might encounter code that calls MainActor and manipulate @Observable objects. Might that be the reason?
Topic:
App & System Services
SubTopic:
Processes & Concurrency
Tags:
Swift
Background Tasks
Observation
Hello,
I have the new root certificate is installed on the server (regarding "Action Required: Apple Push Notification Service Server Certificate Update"). I have switched to using sandbox environment to test if it would be working but I get error:
"reason":"BadCertificateEnvironment"
does it mean that the root certificate is not installed correctly or that is a different issue?
What could be the reason for that?
I have found that this response corresponds to "The client certificate is forthe wrong environment.", but there weren't an option to set environment on "https://identity.apple.com/pushcert/".
I am trying to programmatically block some egress and ingress connections using bsd packet filters. My program writes rules in a file and this file is loaded using an anchor in /etc/pf.conf (main ruleset) . Rules work as intended. But when there is network change like turn on/off wifi , and change in wifi nw the main ruleset is getting flushed and i have to reapply (pfctl -q -f /etc/pf.conf) to get the rules back in place.
Looking for guidance to keep the main ruleset intact irrespective of system changes.
We are developing an iOS app to connect to vehicles and trigger predefined vehicle controls (door lock/unlock) via the Digital Key framework.
We are currently blocked on several aspects and would appreciate your expertise to clarify the following queries.
How can we list down connected vehicle information?
What is the method to retrieve connection status?
How can we perform vehicle control actions (e.g., door lock/unlock)?
STEPS TO REPRODUCE
Starting the CarKeyRemoteControlSession to Fetch Vehicle Reports
Currently, we are using the following API to start a CarKeyRemoteControlSession:
open class func start(
delegate: any CarKeyRemoteControlSessionDelegate,
subscriptionRange subscriptionFunctionIDRange: ClosedRange? = nil,
with delegateCallbackQueue: DispatchQueue? = nil
) async throws -> CarKeyRemoteControlSession
After successfully creating the session, we check for vehicle reports using the vehicleReports property of CarKeyRemoteControlSession:
public var vehicleReports: [VehicleReport] { get throws }
Topic:
App & System Services
SubTopic:
General
Hi,
We received the following message.
Hello, We’re reaching out with a final reminder that the Certification Authority (CA) for Apple Push Notification service (APNs) is changing. APNs updated the server certificates in sandbox on January 21, 2025. APNs production server certificates will be updated on February 24, 2025. To continue using APNs without interruption, you’ll need to update your application’s Trust Store to include the new server certificate: SHA-2 Root: USERTrust RSA Certification Authority certificate.
Note, that we are using Firebase to deliver push notifications and the connection is done via APN keys, not certificates.
Is there anything that we need to update in the application to mitigate the risk of not delivered push notes ?
I remember when I called Apple Support, they told me that they can only assist with refunds for orders within the last two months.
Topic:
App & System Services
SubTopic:
StoreKit
Recently we started facing BLE disconnect issues between our BLE peripheral (microphone) and iOS app that we're having trouble solving.
iOS App: Ionic Capacitor using @capacitor-community/bluetooth-le
Microphone Peripheral: esp32 board using ESP-IDF Apache NimBLE stack
App use case:
Our app records a sound clip using the BLE microphone and sends data via a characteristic. The sound clip is broken up into several packets and all sent over ( over 1600 packets ). The microphone has an antenna and boosted signal as well.
The Issue:
Recently, we've been facing consistent disconnects between the microphone and the iOS app that we think we've narrowed down to the iOS device is disconnecting due to too many dropped packets. It seems the phone can't get further than roughly 10 feet before we see packet loss. Up until recently we had little to no range issues with transferring data and settings disconnected from the microphone while being much further away. Nothing has changed on our end on either the app or microphone firmware side.
We use the same microphone firmware and app on Android and have no issues with range or dropped packets.
It also seems like we can transfer a couple recording , like 2 or 3 ( each with its own connection i.e scan and connect , subscribe to characteristic and gather all the packets , do some processing then disconnect and start over ), without issue than every attempt at gathering the packets starts failing because of disconnects.
Does anyone have any idea what might be going on?
Do we need to fix our connection parameters? This seems to be mostly an issue since the newest iOS updates ( 18.3,18.3.1 ) however we've tested on previous versions and are now seeing same ble range issues.
Any help or guidance on tracking down what's going on is appreciated.
Relevant logs:
`32mI (273409) Task_send_audio:: esp_ble_tx_power_get(ESP_BLE_PWR_TYPE_DEFAULT) = 255 [39m
[31mE (286869) main:: No MBUFs available from pool, retry.. [39m [23;1H
[31mE (287519) main:: No MBUFs available from pool, retry.. [39m [23;1H
[31mE (287769) main:: No MBUFs available from pool, retry.. [39m [23;1H
[31mE (287919) main:: No MBUFs available from pool, retry.. [39m [23;1H`
...
...
...
31mE (1622829) Task_send_audio:: send_audio_ble, couldn't send the audio totally, slave unsubscribe from charactaristic [39m [23;1H
Peripheral connections parameters:
Hi ,
I want to obtain detailed information about the cellular network. Please guide me on how I can access these values. If there are any partnership programs available for this, I am ready to participate
1. cell identity
2. Lcellid
3. ratType
4. enb
5. snr
6. ARFCN
7. TA
8. cqi
9. signalStrength (RSSI)
10. tac (Tracking area code)
11. BSIC
12. lac id
13. MCC code (Restricted on some devices)
14. MNC code
15. PSC (Primary Scrambling code)
16. Arbitrary Signal Strength (ASU)
17. BER
18. RSSI
19. Signal Quality