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iOS Build a Weather App with Swift (Retired) Displaying Our Weather Data Connecting the UI to Our Model

Posted by Ronald Hunter
Ronald Hunter
Courses Plus Student 17,851 Points

Somthing is wrong with the interaction with the ui to the code

So i think the ui and the code is breaking each other

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    let baseUrl = NSURL(string:"https://api.forecast.io/forecast/\(apiKey)/")

    let forecastURL = NSURL(string:"28.014087,-82.787620", relativeToURL: baseUrl)

    let sharedSession = NSURLSession.sharedSession()
    let downloadTask: NSURLSessionDownloadTask = sharedSession.downloadTaskWithURL(forecastURL!, completionHandler:{(location:NSURL!,response:NSURLResponse!,error:NSError!) -> Void in
        if (error == nil){
        let dataObject = NSData(contentsOfURL: location)
        let weatherDictionary: NSDictionary = NSJSONSerialization.JSONObjectWithData(dataObject!, options: nil, error: nil) as NSDictionary


            let currentWeather = Current(weatherDictionary:weatherDictionary)

            dispatch_async(dispatch_get_main_queue(), { () -> Void in
                self.temperatureLabel.text = "\(currentWeather.temperature)"
                self.temperatureLabel.text = "\(currentWeather.temperature)"
                self.iconView.image = currentWeather.icon!
                self.currentTimeLabel.text = "At \(currentWeather.currentTime!) it is"
                self.humidityLabel.text = "\(currentWeather.humidity)"
                self.precipitationLabel.text = "\(currentWeather.precipProbability)"
                self.summaryLabel.text = "\(currentWeather.summary)"
            })

        }

    })
    downloadTask.resume()

I believe my code is good but it keeps showing me an error in the appledelagate file. I went back and deleted the UI items and kept the screen blue and when i ran the code everything went fine. so i think its the dispatch call not seperating the call from the ui