CLGeocoder in Swift - unable to return string when using reverseGeocodeLocation

Question

I\'m attempting to use CLGeocoder to return the location of coordinates in a string. My code currently looks like this:

func getPlaceName(latitude: Double, l         


        

Answer 1

Since reverseGeocodeLocation is an asynchronous function, you need to make your getPlaceName function pass the answer back via a block instead of a return statement. Example:

func getPlaceName(latitude: Double, longitude: Double, completion: (answer: String?) -> Void) {

   let coordinates = CLLocation(latitude: latitude, longitude: longitude)

   CLGeocoder().reverseGeocodeLocation(coordinates, completionHandler: {(placemarks, error) -> Void in
       if (error != nil) {
           println("Reverse geocoder failed with an error" + error.localizedDescription)
           completion(answer: "")
       } else if placemarks.count > 0 {
           let pm = placemarks[0] as CLPlacemark
           completion(answer: displayLocaitonInfo(pm))
       } else {
           println("Problems with the data received from geocoder.")
           completion(answer: "")
       }
   })

}