Open location in Apple Maps using Swift.

gistfile1.txt

func openMaps() {
	let geocoder = CLGeocoder()
	let str = "1600 Pennsylvania Ave. 20500" // A string of the address info you already have
	geocoder.geocodeAddressString(str) { (placemarksOptional, error) -> Void in
	  if let placemarks = placemarksOptional {
	    print("placemark| \(placemarks.first)")
	    if let location = placemarks.first?.location {
	      let query = "?ll=\(location.coordinate.latitude),\(location.coordinate.longitude)"
	      let path = "http://maps.apple.com/" + query
	      if let url = NSURL(string: path) {
	        UIApplication.sharedApplication().openURL(url)
	      } else {
	        // Could not construct url. Handle error.
	      }
	    } else {
	      // Could not get a location from the geocode request. Handle error.
	    }
	  } else {
	    // Didn't get any placemarks. Handle error.
	  }
	}
}