title: Swift onfinish load event of a UIWebView
body: <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>