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?

Hi, My iphone 12 has been restarting unexpectedly, and often followed by wifi, bluetooth, and airdrop grayed out. I had to force restart/shutdown several times to turn it on again. Found this analytics after crash. Please help if somebody know what this means: ExcUserFault_CategoriesService-2024-12-23-064503.ips

I am working on a Bluetooth Low Energy (BLE) project using the nRF52840 Development Kit (DK), which has been reconfigured to simulate an nRF52805 chip. The firmware is based on Nordic Semiconductor's ble_app_hids_keyboard example, with modifications to implement a BLE HID Gamepad. I am using the S113 SoftDevice and have successfully tested the functionality with Android devices. The gamepad is recognized as a HID device, and it works as expected on Android, verified using the hardwareTester website. However, when I connect the gamepad to an iPhone via BLE, the same hardwareTester website does not respond as it does on Android, indicating that the iPhone does not recognize the device as a gamepad. The BLE connection is established successfully, but it seems iOS does not interpret the HID report descriptor or the BLE HID service correctly. I suspect there might be compatibility issues with the HID descriptor or the GATT attributes for iOS-specific BLE HID requirements. I would like to have some help.

I am developing an application that processes a video file stored on a server. I use URLSessionDataTask with a delegate handler to download the file. It is not necessary to download the entire file at once. Instead, I can load small chunks of the file as needed. This approach helps minimize memory consumption. I am trying to design a network layer that supports this behavior. Ideally, I would like to have an interface similar to: func readMoreData(length: Int) async throws -> Data Problems I Encountered: It seems that URLSessionDataTask does not allow controlling how many bytes will be downloaded. It always downloads the entire request. If I call suspend on URLSessionDataTask, the network activity does not stop, and the file keeps downloading. If I upgrade the dataTask to a StreamTask, the file still downloads, though reading bytes can be done through the StreamTask API. I would prefer behavior similar to AsyncHTTPClient (a Swift Server library) or Network Framework. These frameworks allow controlling the number of bytes downloaded at a time. Unfortunately, they do not fit the specific requirements of my project. Am I correct in understanding that controlling the download process is not possible with URLSessionDataTask? As a possible solution, I am considering using HTTP Range Requests, though this would increase the number of additional server requests, which I would like to avoid.

Hi All, Had a question. Is there a point to submit anything through the feedback assistant (https://feedbackassistant.apple.com)? I mean it doesn't seem like any engagement occurs through the platform on any issues submitted.

I am writing a SwiftData/SwiftUI app in which the user saves simple records, tagged with their current location. Core Location can take up to 10 seconds to retrieve the current location from its requestLocation() call. I the main app I have wrapped the CLLocationManager calls with async implementations. I kick off a Task when a new record is created, and write the location to my @Model on the main thread when it completes. A realistic use of the share extension doesn't give the task enough time to complete. I can use performExpiringActivity to complete background processing after the share extension closes but this needs to be a synchronous block. Is there some way of using performExpiringActivity when relying on a delegate callback from something like Core Location?

why is it that this code doesn't show the bluetooth device name but in the iOS settings it is displayed correctly. Thank you. import UIKit import CoreBluetooth import CoreLocation class BluetoothViewController: UIViewController, CBCentralManagerDelegate, CLLocationManagerDelegate { var centralManager: CBCentralManager! var locationManager: CLLocationManager! override func viewDidLoad() { super.viewDidLoad() // Initialize central manager centralManager = CBCentralManager(delegate: self, queue: nil) // Initialize location manager to request location access locationManager = CLLocationManager() locationManager.delegate = self } // CBCentralManagerDelegate Methods func centralManagerDidUpdateState(_ central: CBCentralManager) { switch central.state { case .poweredOn: // Bluetooth is powered on, request location permission if needed if CLLocationManager.locationServicesEnabled() { locationManager.requestWhenInUseAuthorization() } startScanning() case .poweredOff: print("Bluetooth is powered off.") case .resetting: print("Bluetooth is resetting.") case .unauthorized: print("Bluetooth is unauthorized.") case .unknown: print("Bluetooth state is unknown.") case .unsupported: print("Bluetooth is unsupported on this device.") @unknown default: fatalError("Unknown Bluetooth state.") } } func startScanning() { // Start scanning for devices (you can add service UUIDs to filter specific devices) centralManager.scanForPeripherals(withServices: nil, options: [CBScanOptionAllowDuplicatesKey: true]) print("Scanning for Bluetooth devices...") } func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi: NSNumber) { // This method is called when a peripheral is discovered let deviceName = peripheral.name ?? "Unknown" let deviceAddress = peripheral.identifier.uuidString print("Found device: \(deviceName), \(deviceAddress)") // Optionally, you can stop scanning after discovering a device // centralManager.stopScan() } func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) { print("Connected to peripheral: \(peripheral.name ?? "Unknown")") } // CLLocationManagerDelegate Methods (for location services) func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) { if status == .authorizedWhenInUse { // Permission granted, now start scanning startScanning() } else { print("Location permission is required for Bluetooth scanning.") } } // Optionally handle when scanning stops or any errors occur func centralManager(_ central: CBCentralManager, didFailToConnect peripheral: CBPeripheral, error: Error?) { print("Failed to connect to peripheral: \(error?.localizedDescription ?? "Unknown error")") } func centralManager(_ central: CBCentralManager, didDisconnectPeripheral peripheral: CBPeripheral, error: Error?) { print("Disconnected from peripheral: \(peripheral.name ?? "Unknown")") } }

on MacOS I am using raw socket and PF_Route options to monitor the routing table changes but looks like that is not supported in iOS what are the other ways to achieve real time monitoring in iOS ?

I have sqlite database. I want to share this database file. It gives error after 4.3mb on old devices. But on new devices larger files can be shared. Is there a sharing limit or is there a ram limit etc. situation.

Dear Apple Support, We are currently in the process of migrating from Apple Server Notifications v1 to v2. As you know, once we switch from v1 to v2 in App Store Connect, this change is irreversible. Our team needs to ensure that our backend environment, developed in Python with Django and using the app-store-server-library==1.5.0, is fully prepared to handle all possible notification types before making that final switch. While we can receive a basic test notification from Apple, it doesn’t provide the range of data or scenarios (e.g., INITIAL_BUY, RENEWAL, GRACE_PERIOD, etc.) that our code must be able to process, store in our database, and respond to accordingly. Without comprehensive, example-rich raw notification data, we are left guessing the structure and full scope of incoming v2 notifications. Could you please provide us with a set of raw, fully representative notification payloads for every notification type supported in v2? With these examples, we can simulate the entire lifecycle of subscription events, verify our logic, and confidently complete our migration. Thank you very much for your assistance.

https://idmsa.apple.com/IDMSWebAuth/signin?path=%2F%2Fforums%2Fpost%2Fquestion%3Flogin%3Dtrue&language=US-EN&instanceId=EN&appIdKey=25138a77e3499638936f018102a53961c923f72b517d4a4d6aee9f09529baca9&rv=4

我目前在做一个防止设备使用的位置是虚拟的,目前通过苹果的api无法直接判断位置来源于真实或虚拟。请问我该如何去判断它呢？

I recently tried Apple TV after using android tv for a long time. The main missing item is having a browser. I could not find one. i tried building Firefox for TVOS, it failed with WebKit not available. Is there a way to build WebKit and package it along with a browser package while building it?

Does anyone know why I set the offer code in Apple Store Connect, but when I call SKPaymentQueue.default().presentCodeRedemptionSheet() in the app, the app icon does not appear and I cannot find the offer code? THX

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?

Hi, I'm not too good with terminal stuff, but when I looked at activity monitor, my corespotlightd was using too much of my cpu. I decided to look up solutions on google and stumbled upon this: https://forums.developer.apple.com/forums/thread/675482. I tried some of the commands, and I closed the terminal while sudo was still running because I was getting impatient. Somehow, before I even realized it, I was logged out of my Apple ID and my desktop and downloads files were completely gone. For some reason, my applications are still the same, which makes me wonder if some of the files or folders I had before can still be recoverable. I checked time machine, and I wasn't able to recover anything. How cooked am I? I've lost all of my university work and some other pictures and stuff that I thought would never be damaged if I had it locally. Would appreciate any type of help. Thanks.

I'm try to monitor all processes by ES client. But I found the process name is different from the Activity Monitor displayed. As shown in the picture below, there are ShareSheetUI(Pages) and ShareSheetUI(Finder) processes in Activity Monitor, but I can only get the same name ShareSheetUI, I thought of many ways to display the name in parentheses, but nothing worked, so there is a way to display the process name like Activity Monitor?

I am implementing apple pay and the merchant validation is failing with error (error request failed with status code 417). I am using react js in the frontend and node js in backend, this is my code const httpsAgent = new https.Agent({ rejectUnauthorized: false, cert: fs.readFileSync( path.join(__dirname, "../../../certificates/merchant_id_prod.pem") ), key: fs.readFileSync( path.join(__dirname, "../../../certificates/merchant_id_prod.key") ), }); const data = { merchantIdentifier: "merchantId", displayName: "Check", initiative: "web", initiativeContext: "domain.com", }; const response = await axios.post(validationURL, data, { httpsAgent });

I have shortcuts up and running and I have my custom response added to my completion handler since day1. Recently I upgraded to iOS18, and found out the app I develop can not display the custom response. I test the app on iOS17.6, the display of custom response is no problem. The situation is exactly like the problem posted on 2018: https://forums.developer.apple.com/forums/thread/109324 Can anyone help me or have the same bugs? Thank you so much! Happy 2025

I was trying to log the flow description using control filter and data filter. But when I am trying to log the proc ID in control filter, it is always 0, but in data filter, it logs some value. Same goes with the eproc ID. I want to use the flow description data in some other target so I will be sending the data using sockets and I cannot share data from data filter due to its restrictions and control filter isn't providing the proc ID. What should I do?