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People I am a short time programming for IOS using the language SWIFT.
I need to download a file from the web, I’m using Nsurlsessionconfiguration, but this object only works for IOS 8+. And I want the app to run on devices with IOS 7+. Does anyone know how to get around this?
func download(url: NSURL)
{
self.url = url
if #available(iOS 8.0, *) {
let sessionConfig = NSURLSessionConfiguration.backgroundSessionConfigurationWithIdentifier(url.absoluteString)
let session = NSURLSession(configuration: sessionConfig, delegate: self, delegateQueue: nil)
let task = session.downloadTaskWithURL(url)
task.resume()
} else {
//Tratar para fazer download para versão 7
}