Iterate through an array with multiple dictinaries : I have an array that contains multiple dictionaries.I want to iterate through every dictionary in the array in order to get only the "File_name" .Once i get the "file_name", i will add those values in another array of type [[String:Anyobject]] that i  will hold the images .How can i proceed ?
Here is my code 



         import UIKit
         import  Alamofire
         import SwiftyJSON
         import MapKit
         import CoreLocation

         class DetailsViewController: UIViewController , MKMapViewDelegate ,  CLLocationManagerDelegate {
    @IBOutlet weak var Price: UILabel!

    @IBOutlet weak var Floor: UILabel!
    @IBOutlet weak var scrollerpage: UIScrollView!
    @IBOutlet weak var mapview: MKMapView!
    @IBOutlet weak var bath: UILabel!
    @IBOutlet weak var bed_number: UILabel!
   
   
    @IBOutlet var PhotoDetailsView: UIImageView!
    @IBOutlet var label1: UILabel!
    @IBOutlet var label2: UILabel!
    @IBOutlet var label3: UILabel!
    @IBOutlet var label4: UILabel!
    @IBOutlet var label5: UILabel!
    @IBOutlet var label6: UILabel!
    @IBOutlet var label7: UILabel!
    @IBOutlet var label8: UILabel!
    @IBOutlet var label9: UILabel!
    @IBOutlet var label10: UILabel!
    @IBOutlet var label11: UILabel!
    @IBOutlet var label12: UILabel!
    @IBOutlet var label13: UILabel!
    @IBOutlet var label14: UILabel!
    @IBOutlet var label15: UILabel!
    @IBOutlet var label16: UILabel!
    @IBOutlet var label17: UILabel!
    
    
 
    
    
    @IBOutlet var descritpionlabel: UILabel!
    
    
    var CondoIndivi2 = [[String:AnyObject]]()
    var imageArray = [[String:AnyObject]]()
    var test = [[String :AnyObject]]()
    let adress : String = ""
   

    
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        
        scrollerpage.contentSize.height = 15000
        

        
        test = [
            [
                "id": 744736,
                "pic_count": 6,
                "mls_unique_id": 342947084,
                "list_price": 1480000,
                "property_type": "RE2",
                "city": "Miami",
                "bedrooms": 3,
                "bath": 3,
                "status": "A",
                "entry_date": "2016-02-11 00:11:52",
                "mls_number": "A10032455",
                "street_number": 1060,
                "street_directional":  "",
                "street_name": "Brickell",
                "city_id": 65,
                "zipcode": 33131,
                "address": "1060 Brickell # 4505",
                "primary_listing_pid": 3039955,
                "secondary_listing_pid": "",
                "municipal_code": 31,
                "township_number": 22,
                "section_number": 11,
                "subdivision_number":  "",
                "area": 41,
                "parcel_number": 1250,
                "year_built": 2009,
                "virtual_tour_link": "",
                "half_bath": 1,
                "living_area": 1933,
                "garage_spaces": 1,
                "waterfront": "Y",
                "total_area":  "",
                "pool":  "",
                "maintenance_fee": 1662,
                "pets_allowed": "Yes",
                "unit_number": 4505,
                "lot_area":  "",
                "listing_broker_code": "ZZON01",
                "listing_broker_office": "Zona",
                "latitude": 25.764026271539,
                "longitude": -80.191569328308,
                "original_list_price": 1780000,
                "main_photo_url": "http://s3.amazonaws.com/sefpic/large/342947084-1.jpg",
                "sale_price": 0,
                "days_on_market": 73,
                "close_date":  "",
                "selling_broker_code":  "",
                "expiration_date":  "",
                "condo_id": 444,
                "complex": "Avenue 1060 Brickell",
                "subdivision":  "",
                "community_name":  "",
                "lot_dimensions":  "",
                "hoa_fees":  "",
                "taxes": 32337,
                "tax_year": 2015,
                "rental_type":  "",
                "rental_occupancy": "Tenant Occupied",
                "rental_furnished": "U",
                "commercial_type":  "",
                "commercial_lease_sale":  "",
                "commercial_style":  "",
                "commercial_building":  "",
                "commercial_building_alt":  "",
                "county_id": "DADE",
                "selling_public_id":  "",
                "second_selling_public_id":  "",
                "agent_name": "Eduardo Diez",
                "broker_office_phone": "305-397-8192",
                "agent_phone": "305-753-1113",
                "second_agent_phone":  "",
                "second_agent_name":  "",                "parking_restrictions":  "",
                "condo_waterfront_view": [
                "No Fixed Bridges"
                ],
                "foreclosure":  "",
                "short_status":  "",
                "home_design":  "",
                "home_view": "Ocean View,Water View",
                "short_sale": "N",
                "reo": "N",
                "internet_address_ok":  "",
                "modified_date": "2016-02-11 00:44:48",
                "image_modified_date": "2016-02-11 00:23:16",
                "directions":  "",
                "property_style": "Condo 5+ Stories",
                "building_amenities": [
                "Elevator",
                "Exercise Room"
                ],
                "equipment": [
                "Automatic Garage Door Opener",
                "Circuit Breaker",
                "Dishwasher",
                "Dryer",
                "ELEVATOR",
                "Fire Alarm",
                "Microwave",
                "Refrigerator",
                "Self Cleaning Oven",
                "Smoke Detector"
                ],
                "exterior_features": [
                "High Impact Doors",
                "Open Balcony",
                "Other"
                ],
                "interior_features": [
                "Closets Cabinetry",
                "Cooking Island",
                "Handicap Equipped",
                "Other Interior Features",
                "Split Bedroom",
                "Vaulted Ceilings"
                ],
                "construction_type": [
                "Concrete Block Construction"
                ],
                "floors":  "",
                "roof_type": "",
                "home_heating": "",
                "pet_restriction": "Restrictions Or Possible Restrictions",
                "home_cooling": [
                "Central Cooling",
                "Electric Cooling",
                "Other"
                ],
                "home_design_2":  "",                "bedroom_2_size":  "",
                "bedroom_3_size":  "",
                "bedroom_4_size": "",
                "bedroom_master_size": "",
                "kitchen_size": "",
                "living_room_size":  "",
                "rental_includes":  "",
                "description": "Unique duplex apartment on brickell avenue. Amazing views. Building with all amenities. Walking distance to restaurants, bars, markets, convenient stores.",
                "rooms": "",
                "sewer":  "",
                "water":  "",
                "subdv":  "",
                "dinner":  "",
                "floor_location": "45<sup>th</sup>",
                "property_type_db": "RE2",
                "pets_icon": "Yes",
                "furnished_icon": "",
                "price_sqft": 765.64924987067,
                "price_sq_meters": 8241.6496218586,
                "living_area_meters": 179.5757,
                "price_change_days": 23,
                "price_change_type": -1,
                "price_change_diff": 300000,
                "price_change_percent": 20.27,
                "price_change_arrow": "down",
                "days_on_market_str": "2 months",
                "days_on_market_unix": 1455167512,
                "listing_images": [
                [
                "file_name": "http://s3.amazonaws.com/sefpic/large/342947084-1.jpg",
                "comments": "",
                "photo_id": 1
                ],
                [
                "file_name": "http://s3.amazonaws.com/sefpic/large/342947084-2.jpg",
                "comments": "",
                "photo_id": 2
                ],
                [
                "file_name": "http://s3.amazonaws.com/sefpic/large/342947084-3.jpg",
                "comments": "",
                "photo_id": 3
                ],
                [
                "file_name": "http://s3.amazonaws.com/sefpic/large/342947084-4.jpg",
                "comments": "",
                "photo_id": 4
                ],
                [
                "file_name": "http://s3.amazonaws.com/sefpic/large/342947084-5.jpg",
                "comments": "",
                "photo_id": 5
                ],
                [
                "file_name": "http://s3.amazonaws.com/sefpic/large/342947084-6.jpg",
                "comments": "",
                "photo_id": 6
                ]
                ],
                "permalink_url": "/property-view/1060-brickell---4505/miami/342947084/"
            ]
        ]

        
        
        
        
          let longtitude_map =   test[0]["longitude"] as! Double
          let latitude_map =   test[0]["latitude"]  as! Double
          let adress =  test[0]["address"]  as! String
        
        
        if let image = test[0]["listing_images"]{
            
           
            // image will be an array of dictionary holding the file names 
            [![this is how image looks like][1]][1]
            
            
            //loop through image and get only the  filename so that i can add it in var imageArray = [[String:AnyObject]]()
         
        
        }
       
        
        let latDelta:CLLocationDegrees = 0.05
        
        let lonDelta:CLLocationDegrees = 0.05
        
        let span:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, lonDelta)
        
        let location:CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitude_map, longtitude_map)
        
        let region:MKCoordinateRegion = MKCoordinateRegionMake(location, span)
        
        mapview.setRegion(region, animated: false)
        

    
       
        
        let annotation = MKPointAnnotation()
        
        annotation.coordinate = location
        
        annotation.title = adress
        
        
        mapview.addAnnotation(annotation)
        
        let uilpgr = UILongPressGestureRecognizer(target: self, action: Selector("action:"))
        
        uilpgr.minimumPressDuration = 2
        
        mapview.addGestureRecognizer(uilpgr)
        

        
        
        

        
        
      
        
        
    }
    
   
               
           

   
  

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


      }


  [1]: http://i.stack.imgur.com/1wpHH.png