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iOS

Posted by Suthananth Arulanantham
Suthananth Arulanantham
728 Points

Stormy Location Manager Help

Following the Idea of single responsibility principle, I want to make Location Service as a singleton class. Which includes methods for finding current location and a method for reverse geocoding.

The problem I'm experiencing is that, CLLocationManagerDelegates does not have any completion handler. therefor when I instantiate the Location Service in the ViewDidLoad method, the app doesn't wait for the location service to get a fix.

Is there a way for me to make the app wait? Or Am I doing this all wrong.

My Idea was that when the app launches, The location service is called in the ViewDidLoad method.And wait until the location service returns a location. (Sorry for my bad English)

Suthananth Arulanantham
Suthananth Arulanantham
728 Points 
class LocationService: NSObject, CLLocationManagerDelegate{
    var locationManager : CLLocationManager = CLLocationManager()
    var location : CLLocation? = nil
    var gotLocation : Bool = false

    class var sharedInstance: LocationService{
        struct Static {
            static let instance: LocationService = LocationService()
        }
        return Static.instance
    }

    override init(){
        super.init()

    }

    func initLocationManager(){
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestAlwaysAuthorization()
    }

    func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
        if gotLocation == false{
            let locationArray = locations as NSArray
            if let loc = locationArray.lastObject as? CLLocation{
                self.location = loc
            }
            locationManager.stopUpdatingLocation()
            gotLocation = true
        }


    }

    func getLocation(completion:(CLLocation?)->Void){
        self.initLocationManager()
        self.locationManager.startUpdatingLocation()
        completion(self.location)
    }

    func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
        println("error: \(error.localizedDescription)")
    }
}