Watchkit table flickers then disappears completely - json

Question

I have a watchkit table that is populated by information from a JSON. When I run the program the table becomes populated, however it starts to flicker then disappears completely. This happens every time I run it, and sometimes the table just doesn't show up at all. Anyone know why this might be happening?
Edit: Sorry, I should have put my code when I posted this question.
#IBOutlet weak var earthTable: WKInterfaceTable!
//Create cells
private func loadTableData() {
// getEarthquakeInfo is the function that I use to parse the JSON and grab the infomation I need into info.
getEarthquakeInfo { (info) in
self.earthTable.setNumberOfRows(info.count, withRowType: "earthquake")
//Create cells
for index in 0..<self.earthTable.numberOfRows {
var currentRow = self.earthTable.rowControllerAtIndex(index) as earthquakeViewController
let time = info[index].time
let mag = info[index].mag
let title = info[index].title
currentRow.titleLabel.setText("\(title)")
currentRow.timeLabel.setText("\(time)")
currentRow.magLabel.setText("\(mag)")
}
}
}
override func awakeWithContext(context: AnyObject?) {
super.awakeWithContext(context)
loadTableData()
}
override func willActivate() {
// This method is called when watch view controller is about to be visible to user
super.willActivate()
}
override func didDeactivate() {
// This method is called when watch view controller is no longer visible
super.didDeactivate()
}
}
Here's my function, getEarthquakeInfo at the top of my interfaceController.swift:
class InterfaceController: WKInterfaceController {
var info = [AppModel]()
func getEarthquakeInfo(completion: (results : [AppModel]) ->Void ){
DataManager.getEarthquakeDataFromFileWithSuccess {
(data) -> Void in
let json = JSON(data: data)
if var JsonArray = json.array {
JsonArray.removeAtIndex(0)
for appDict in JsonArray {
// parsing
var ids: String? = appDict["id"].stringValue
var title: String? = appDict["title"].stringValue
var time: String? = appDict["time"].stringValue
var lattitude: String? = appDict["lat"].stringValue
var longitude: String? = appDict["lng"].stringValue
var north: String? = appDict["north"].stringValue
var west: String? = appDict["west"].stringValue
var mag: String? = appDict["mag"].stringValue
var depth: String? = appDict["depth"].stringValue
var timeStamp: String? = appDict["timestamp"].stringValue
// Splitting up title string into 2 parts
let newString = title!.stringByReplacingOccurrencesOfString(" ", withString: " - ", options: NSStringCompareOptions.LiteralSearch, range: nil)
var title2strings = newString.componentsSeparatedByString(" - ")
var scale = title2strings[0]
var location = title2strings[1]
// replacing M in scale string with Richter Scale
let scaleString = scale.stringByReplacingOccurrencesOfString("ML", withString: "Magnitude", options: NSStringCompareOptions.LiteralSearch, range: nil)
let scaleString2 = scaleString.stringByReplacingOccurrencesOfString("mb", withString: "Magnitude", options: NSStringCompareOptions.LiteralSearch, range: nil)
let scaleString3 = scaleString2.stringByReplacingOccurrencesOfString("Mw", withString: "Magnitude", options: NSStringCompareOptions.LiteralSearch, range: nil)
let scaleString4 = scaleString3.stringByReplacingOccurrencesOfString("MD", withString: "Magnitude", options: NSStringCompareOptions.LiteralSearch, range: nil)
let scaleString5 = scaleString4.stringByReplacingOccurrencesOfString("M ", withString: "Magnitude ", options: NSStringCompareOptions.LiteralSearch, range: nil)
//Formatting the date
var date = NSDate(dateString: time!).getDatePart()
// Collecting all the information
var information = AppModel(idEarth: ids, title: title, time: date, lat: lattitude, lng: longitude, north: north!, west: west, mag: mag, depth: depth, timeStamp: timeStamp, location: location, scale: scaleString5)
self.info.append(information)
//sorting array by highest magnitude
// self.info.sort({$0.mag > $1.mag})
// returning the completion handler
completion(results: self.info)
}
}
}
}
However, I think this is where the problem is at. This is the file where I call the web service. When I debugged it, the data is retrieved however the table crashes once it's populated.
My DataManager.swift file:
import Foundation
let earthquakeURL = "http://www.kuakes.com/json/"
class DataManager {
class func getEarthquakeDataFromFileWithSuccess(success: ((websiteData: NSData) -> Void)) {
//1
loadDataFromURL(NSURL(string: earthquakeURL)!, completion:{(data, error) -> Void in
//2
if let urlData = data {
//3
success(websiteData: urlData) // When I debug, this line is hit and the data is being received, the table populates, however like I said it just disappears completely.
}
else {
println("nothing")
}
})
}
class func loadDataFromURL(url: NSURL, completion:(data: NSData?, error: NSError?) -> Void) {
var session = NSURLSession.sharedSession()
// Use NSURLSession to get data from an NSURL
let loadDataTask = session.dataTaskWithURL(url, completionHandler: { (data: NSData!, response: NSURLResponse!, error: NSError!) -> Void in
if let responseError = error {
completion(data: nil, error: responseError)
} else if let httpResponse = response as? NSHTTPURLResponse {
if httpResponse.statusCode != 200 {
var statusError = NSError(domain:"com.kuakes", code:httpResponse.statusCode, userInfo:[NSLocalizedDescriptionKey : "HTTP status code has unexpected value."])
completion(data: nil, error: statusError)
} else {
completion(data: data, error: nil)
}
}
})
loadDataTask.resume()
}
}