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iOS Build a Weather App with Swift (Retired) Concurrency Using Our JSON Data

Seth Dobrin
Seth Dobrin
1,459 Points
Posted by Seth Dobrin
Seth Dobrin
1,459 Points

Stormy downloadTask issue

Im getting 2 errors at let downloadTask

  1. Use of undeclared type 'NSURLResponse"
  2. Extra argument "completionHandler' in call

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:"38.607550,-90.622682", relativeToURL:baseURL)

    let sharedSession = NSURLSession.sharedSession()
    let downloadTask: NSURLSessionDownloadTask = sharedSession.downloadTaskWithURL(forecastURL, comlpetionHandler: { (location: NSURL!, response: NSURLRsponse!, error: NSError!) -> void in

        println(error)
        if (error == nil) {
            let dataObject = NSData(contentsOfURL: location)
            let weatherDictionary:NSDictionary = NSJASONObjectWithData (dataObject, options: nil, error: nil) as NSDictionary
        }
    })
    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

Hey so you spelled NSURLResponse! wrong, and also completionHandler too and your forcastURL needs a ! to unwrap it and void should be capital and i think that should work

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