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iOS Build a Weather App with Swift (Retired) Data Modeling With Structures Cleaning Up Our Date

Eliot Murton
Eliot Murton
7,315 Points
Posted by Eliot Murton
Eliot Murton
7,315 Points

No code error notifications. Yet, output is not the same as in the video. Why?

I have followed the videos and my code has no error notifications. Yet, 40 seconds into the video, when we are asked ti run the programme and println the temperature I get a discrepancy. Rather than the output simply being a number, I get this:

<NSHTTPURLResponse: 0x7af95f50> { URL: https://api.forecast.io/forecast/6f3bd180cccb667a7f39dfbb00e9a8e7/-42.785829,147.061822 } { status code: 200, headers {
    "Cache-Control" = "max-age=854";
    Connection = close;
    "Content-Encoding" = gzip;
    "Content-Type" = "application/json; charset=utf-8";
    Date = "Fri, 13 Feb 2015 14:45:46 GMT";
    Etag = "\"-1001087721\"";
    Expires = "Fri, 13 Feb 2015 15:00:00 +0000";
    Server = "nginx/1.1.19";
    "Transfer-Encoding" = Identity;
    "X-Forecast-API-Calls" = 3;
    "X-Hostname" = "cowrie-shell";
    "X-Powered-By" = Express;
    "X-Response-Time" = 98ms;
} }
60

Why?

Eliot Murton
Eliot Murton
7,315 Points
Eliot Murton
Eliot Murton
7,315 Points

The "60" must be the output I am looking for but I dont want it with all the other infom. Here is the code from the ViewController that got me here:

import UIKit

class ViewController: UIViewController {

    private let apiKey = "6f3bd180cccb667a7f39dfbb00e9a8e7"

    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: "-42.785829,147.061822", relativeToURL: baseURL)

        let sharedSession = NSURLSession.sharedSession()
        let downloadTask: NSURLSessionDownloadTask = sharedSession.downloadTaskWithURL(forecastURL!, completionHandler: { (location: NSURL!, response: NSURLResponse!, error: NSError!) -> Void in println(response)

            if (error == nil) {/*This makes error easier to understand if it occures*/
            let dataObject = NSData(contentsOfURL: location)
            let weatherDictionary: NSDictionary = NSJSONSerialization.JSONObjectWithData(dataObject!, options: nil, error: nil) as NSDictionary

            let currentWeather = Current(weatherDictionary: weatherDictionary)
            println(currentWeather.temperature)

            }

        })
        downloadTask.resume()
    }

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


}

1 Answer

Ronald Hunter
PLUS
Ronald Hunter
Courses Plus Student 17,851 Points
Ronald Hunter
Ronald Hunter
Courses Plus Student 17,851 Points

You still have the println(response) by your void in the let downloadTask:NSURLSessionDownloadTask