Swift onfinish load event of a UIWebView
<p>I'm loading a pdf in <code>WebView</code> from my server with this code :</p>

<pre><code>    webView = UIWebView(frame: CGRectMake(0, y, screenSize.width, screenSize.height-y))    
    let url : NSURL! = NSURL(string: urlFile)        
    webView?.loadRequest(NSURLRequest(URL: url))        
    webView?.opaque = false;
    webView?.backgroundColor = UIColor.clearColor()                
    webView?.scalesPageToFit = true;    
    self.view.addSubview(webView!)
</code></pre>

<p>This code works but how can i receive an event "onPageLoad"?
sorry for bad english, i'm italian(:</p>