ios - How to pull information from NSDictionary Swift -

right have mapview populates bunch of pins based on category, example, 'asian food'. when click callout accessory of annotation, app navigates detail viewcontroller, hope display address , other properties. getting information yelp api client. here model:

import uikit import mapkit var resultquerydictionary:nsdictionary!  class resturant: nsobject {     var name: string!     var thumburl: string!     var address: string!     var jsondata: nsdata!     var location: nsdictionary        // location       init(dictionary: nsdictionary) {         name = dictionary["name"] as? string         thumburl = dictionary["thumburl"] as? string         address = dictionary["address"] as? string         self.location = dictionary["location"] as? nsdictionary ?? [:]     }      class func searchwithquery(map: mkmapview, query: string, completion: ([resturant]!, nserror!) -> void) {         yelpclient.sharedinstance.searchwithterm(query,sort: 0, radius: 1069, success: { (operation: afhttprequestoperation!, response: anyobject!) -> void in             let responseinfo = response as! nsdictionary             resultquerydictionary = responseinfo             println(responseinfo)             let dataarray = responseinfo["businesses"] as! nsarray             business in dataarray {                 let obj = business as! nsdictionary                 var yelpbusinessmock: yelpbusiness = yelpbusiness(dictionary: obj)                 var annotation = mkpointannotation()                 annotation.coordinate = yelpbusinessmock.location.coordinate                 annotation.title = yelpbusinessmock.name                 annotation.subtitle = yelpbusinessmock.displayaddress                 attractiondetailaddressstring = yelpbusinessmock.displayaddress                 map.addannotation(annotation)             }             }) { (operation: afhttprequestoperation!, error: nserror!) -> void in          println(error)         }     }     // term: string, deal: bool, radius: int, sort: int, categories: string, success: (afhttprequestoperation!, anyobject!) -> void, failure: (afhttprequestoperation!, nserror!) -> void) -> afhttprequestoperation! {      class func searchwithquerywithradius(map: mkmapview, term: string, deal: bool, radius: int, sort: int, categories: string, completion: ([resturant]!, nserror!) -> void) {         yelpclient.sharedinstance.searchwithterm(term, deal: false, radius: radius, sort: sort,categories: categories, success: { (operation: afhttprequestoperation!, response: anyobject!) -> void in             let responseinfo = response as! nsdictionary             resultquerydictionary = responseinfo             println(responseinfo)             let dataarray = responseinfo["businesses"] as! nsarray             business in dataarray {                 let obj = business as! nsdictionary                 var yelpbusinessmock: yelpbusiness = yelpbusiness(dictionary: obj)                 var annotation = mkpointannotation()                 annotation.coordinate = yelpbusinessmock.location.coordinate                 annotation.title = yelpbusinessmock.name                 map.addannotation(annotation)             }             }) { (operation: afhttprequestoperation!, error: nserror!) -> void in             println(error)         }     }  } 

in attractions viewcontroller (where user taps categories populate map pins), have code when callout accessory tapped:

func mapview(mapview: mkmapview!, annotationview view: mkannotationview!, calloutaccessorycontroltapped control: uicontrol!) {         if (control == view.rightcalloutaccessoryview) {             let selectedlocation = view.annotation;             let selectedcoordinate = view.annotation.coordinate;             var latitude = selectedcoordinate.latitude             var longitude = selectedcoordinate.longitude             var location:cllocation = cllocation(latitude: latitude, longitude: longitude)             let businessplacemark = mkplacemark(coordinate: selectedcoordinate, addressdictionary: nil)             indicatedmapitem = selectedcoordinate;             let resturantmock:resturant = resturant(dictionary: resultquerydictionary)             attractiondict = resturantmock.location;             performseguewithidentifier("attractiontodetail", sender: self);         }     } override func prepareforsegue(segue: uistoryboardsegue, sender: anyobject?) {         var attractionsdetailviewcontroller:attractionsdetailviewcontroller = segue.destinationviewcontroller as! attractionsdetailviewcontroller         attractionsdetailviewcontroller.attractionlocation = indicatedmapitem;         attractionsdetailviewcontroller.attractionlocationdetail = self.attractiondict     } 

in detail view controller, attempt data specific business tapped.

func getyelpdata() {         var businessmock:resturant = resturant(dictionary: resultquerydictionary)         var address:nsdictionary = attractionlocationdetail //dictionary         attractiondetailaddressstring = businessmock.location["display_address"] as? string;         self.addresslabel.text = attractiondetailaddressstring } 

however, displays address nil.

basically want know how 1 instance of business large nsdictionary of businesses , retrieve data individual business in detail vc.

this github repo if want @ code: https://github.com/ssharif6/park-n-go

thanks help!

it looks though problem may here on line

attractiondict = resturantmock.location; 

your dictionary have location key, doesn't have keys suggested here on location sub dictionary:

init(dictionary: nsdictionary) {     name = dictionary["name"] as? string     thumburl = dictionary["thumburl"] as? string     address = dictionary["address"] as? string     self.location = dictionary["location"] as? nsdictionary ?? [:] } 

so naturally values nil when vc gets loaded. keys exist on resturantmock.business dictionary - meant write? :)