iOS Swift downloading files
<p>I need to download a file, which is located on the server. I have an URL for it like:   <a href="http://www.myhosting.com/1.txt" rel="nofollow">http://www.myhosting.com/1.txt</a>
I need to download it to my iOS device or, at least, read text from it. 
My project is on SWIFT.
Now I am using a code below:</p>

<pre><code>let requestURL: NSURL = NSURL(string: "http://www.myhosting.com/1.txt")!
        let urlRequest: NSMutableURLRequest = NSMutableURLRequest(URL: requestURL)
        let session = NSURLSession.sharedSession()
        let task = session.dataTaskWithRequest(urlRequest) {
            (data, response, error) -&gt; Void in

            let httpResponse = response as! NSHTTPURLResponse
            let statusCode = httpResponse.statusCode

            if (statusCode == 200) {
                self.dtlbl.text = "Everyone is fine, file downloaded successfully."

            }
        }

        task.resume()
</code></pre>

<p>But it doesn't work. My app just closing up after running this code. 
I tried to read it, but it was unluck too..</p>

<p>Please, need any help!
Dont know what to do. 
One more think - I SHOULDN'T use any side frameworks. </p>