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Simply Singleton CLLocationManager Class in Swift
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| // | |
| // LocationService.swift | |
| // | |
| // | |
| // Created by Anak Mirasing on 5/18/2558 BE. | |
| // | |
| // | |
| import Foundation | |
| import CoreLocation | |
| protocol LocationServiceDelegate { | |
| func tracingLocation(currentLocation: CLLocation) | |
| func tracingLocationDidFailWithError(error: NSError) | |
| } | |
| class LocationService: NSObject, CLLocationManagerDelegate { | |
| // class var sharedInstance: LocationService { | |
| // struct Static { | |
| // static var onceToken: dispatch_once_t = 0 | |
| // static var instance: LocationService? = nil | |
| // } | |
| // dispatch_once(&Static.onceToken) { | |
| // Static.instance = LocationService() | |
| // } | |
| // return Static.instance! | |
| // } | |
| static let sharedInstance = LocationService() //Simple, Short & Sweet :) | |
| var locationManager: CLLocationManager? | |
| var lastLocation: CLLocation? | |
| var delegate: LocationServiceDelegate? | |
| override init() { | |
| super.init() | |
| self.locationManager = CLLocationManager() | |
| guard let locationManager = self.locationManager else { | |
| return | |
| } | |
| if CLLocationManager.authorizationStatus() == .NotDetermined { | |
| // you have 2 choice | |
| // 1. requestAlwaysAuthorization | |
| // 2. requestWhenInUseAuthorization | |
| locationManager.requestAlwaysAuthorization() | |
| } | |
| locationManager.desiredAccuracy = kCLLocationAccuracyBest // The accuracy of the location data | |
| locationManager.distanceFilter = 200 // The minimum distance (measured in meters) a device must move horizontally before an update event is generated. | |
| locationManager.delegate = self | |
| } | |
| func startUpdatingLocation() { | |
| print("Starting Location Updates") | |
| self.locationManager?.startUpdatingLocation() | |
| } | |
| func stopUpdatingLocation() { | |
| print("Stop Location Updates") | |
| self.locationManager?.stopUpdatingLocation() | |
| } | |
| // CLLocationManagerDelegate | |
| func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { | |
| guard let location = locations.last else { | |
| return | |
| } | |
| // singleton for get last location | |
| self.lastLocation = location | |
| // use for real time update location | |
| updateLocation(location) | |
| } | |
| func locationManager(manager: CLLocationManager, didFailWithError error: NSError) { | |
| // do on error | |
| updateLocationDidFailWithError(error) | |
| } | |
| // Private function | |
| private func updateLocation(currentLocation: CLLocation){ | |
| guard let delegate = self.delegate else { | |
| return | |
| } | |
| delegate.tracingLocation(currentLocation) | |
| } | |
| private func updateLocationDidFailWithError(error: NSError) { | |
| guard let delegate = self.delegate else { | |
| return | |
| } | |
| delegate.tracingLocationDidFailWithError(error) | |
| } | |
| } |
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