Wikitude
How can we help you today?
iOS JavaScript API UI Background Thread crash
1 Comment
Wikitude Support
said
4 months ago
Hi,
Could you please provide the following details:
- Which version of the SDK are you using?
- What device does this happen with - is the crash device specific
- Is this happening with the sample app or in your own app? If it happens with your own app, does the sample app work on your device and did you make sure to initalize the ArchitectView as indicated in the documentation and handled in sample app?
If the issue persists, please send a complete demo project (ideally only consisting the necessary code to reproduce the crash) so we can investigate.
Thx and greetings
Nicola
Kristóf Nemere
Hello,
I'm working on an iOS application and using the JavaScript API. I created the ViewController based on the example project, but my app crashes. Could you help to determinate what is wrong?
The crash log is the following:
The ViewController is the following:
import UIKit class TreasureHuntViewController: BaseViewController { @IBOutlet weak var architectView: WTArchitectView! private var architectWorldNavigation: WTNavigation? private let locationManager = CLLocationManager() private var poiGroups = [PoiGroup]() private var allPois = [Poi]() private var isPoisLoaded = false private var selectedMarkerLocation: CLLocation? override func viewDidLoad() { super.viewDidLoad() setup() fetchPoiGroups() } override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) startArchitectViewRendering() } override func viewDidDisappear(_ animated: Bool) { super.viewDidDisappear(animated) stopArchitectViewRendering() } @IBAction func didTouchFilterButton(_ sender: Any) { removeMarkers() } } extension TreasureHuntViewController: WTArchitectViewDelegate { func architectView(_ architectView: WTArchitectView, didFailToLoadArchitectWorldNavigation navigation: WTNavigation, withError error: Error) { print("Architect World from URL \(navigation.originalURL.absoluteString) could not be loaded. Reason: \(error.localizedDescription)"); } func architectView(_ architectView: WTArchitectView, receivedJSONObject jsonObject: [AnyHashable : Any]) { if jsonObject.capacity > 0 { guard let latitude = jsonObject[Constants.Wikitude.PoiJsonKeys.ATTR_LATITUDE] as? Double, let longitude = jsonObject[Constants.Wikitude.PoiJsonKeys.ATTR_LONGITUDE] as? Double, let _ = jsonObject[Constants.Wikitude.PoiJsonKeys.ATTR_ALTITUDE] as? Double else { return } selectedMarkerLocation = CLLocation(latitude: latitude, longitude: longitude) } } func architectViewNeedsDeviceSensorCalibration(_ architectView: WTArchitectView) { } } extension TreasureHuntViewController: CLLocationManagerDelegate { func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { /*if let firstLocation = locations.first { let coordinate = firstLocation.coordinate architectView.injectLocation(withLatitude: coordinate.latitude, longitude: coordinate.longitude, altitude: firstLocation.altitude, accuracy: kCLLocationAccuracyBestForNavigation) }*/ if allPois.count > 0 { if !isPoisLoaded { guard let poiJsonData = try? JSONSerialization.data(withJSONObject: Poi.convertPoisToJsonArray(allPois), options: []) else { return } if let poiJson = String(data: poiJsonData, encoding: String.Encoding.utf8) { print("World.loadPoisFromJsonData(" + poiJson + ")") architectView.callJavaScript("World.loadPoisFromJsonData(" + poiJson + ")") isPoisLoaded = true } } } } func locationManager(_ manager: CLLocationManager, didUpdateHeading newHeading: CLHeading) { print(newHeading.magneticHeading) } } private extension TreasureHuntViewController { func setup() { navigationItem.title = Stack.treasureHunt.title() addMenuButtonToNavigationBar() addInfoButtonToNavigationBar() addOpenMenuGesture(to: view) addSeparatorViews() // Wikitude setup do { try WTArchitectView.isDeviceSupporting(.geo) architectView.setLicenseKey(Constants.Wikitude.licenseKey) architectView.delegate = self architectView.requiredFeatures = .geo if let architectWorldUrl = Bundle.main.url(forResource: "index", withExtension: "html", subdirectory: "ARTreasureHunt") { architectWorldNavigation = architectView.loadArchitectWorld(from: architectWorldUrl) } NotificationCenter.default.addObserver(self, selector: #selector(didReceiveApplicationWillResignActiveNotification), name: NSNotification.Name.UIApplicationWillResignActive, object: nil) NotificationCenter.default.addObserver(self, selector: #selector(didReceiveApplicationDidBecomeActiveNotification), name: NSNotification.Name.UIApplicationDidBecomeActive, object: nil) // Location setup if CLLocationManager.locationServicesEnabled() { locationManager.delegate = self locationManager.desiredAccuracy = kCLLocationAccuracyBest locationManager.distanceFilter = kCLLocationAccuracyBest locationManager.startUpdatingLocation() locationManager.startUpdatingHeading() } } catch { print(error) } } @objc func didReceiveApplicationWillResignActiveNotification() { DispatchQueue.main.async { if self.architectWorldNavigation?.wasInterrupted ?? true { self.architectView.reloadArchitectWorld() } } self.startArchitectViewRendering() } @objc func didReceiveApplicationDidBecomeActiveNotification() { self.stopArchitectViewRendering() } func startArchitectViewRendering() { DispatchQueue.main.async { if !self.architectView.isRunning { self.architectView.start({ configuration in configuration.captureDevicePosition = .back configuration.captureDeviceResolution = .AUTO }) { isRunning, error in print("Unable to start WTArchitectView.") } } } } func stopArchitectViewRendering() { DispatchQueue.main.async { if (self.architectView.isRunning) { self.architectView.stop() } } } func fetchPoiGroups() { FirebaseManager.shared.getPoiGroups { [weak self] poiGroups in guard let wSelf = self else { return } wSelf.poiGroups = poiGroups poiGroups.forEach({ poiGroup in poiGroup.groupPois.forEach({ poi in var poiCopy = poi.copy() poiCopy.colorCode = poiGroup.groupColor wSelf.allPois.append(poiCopy) }) }) } } func removeMarkers() { self.architectView.callJavaScript("World.removePois()") } func degreesToRadians(degrees: Double) -> Double { return degrees * .pi / 180.0 } func radiansToDegrees(radians: Double) -> Double { return radians * 180.0 / .pi } func getBearingBetweenTwoPoints(point1: CLLocation, point2: CLLocation) -> Double { let lat1 = degreesToRadians(degrees: point1.coordinate.latitude) let lon1 = degreesToRadians(degrees: point1.coordinate.longitude) let lat2 = degreesToRadians(degrees: point2.coordinate.latitude) let lon2 = degreesToRadians(degrees: point2.coordinate.longitude) let dLon = lon2 - lon1 let y = sin(dLon) * cos(lat2) let x = cos(lat1) * sin(lat2) - sin(lat1) * cos(lat2) * cos(dLon) let radiansBearing = atan2(y, x) return radiansToDegrees(radians: radiansBearing) } }I look forward to your early reply.