how to know uiwebview's progress

I have a webview which hits a website with 3 or 4 frames. I am not able to find the real end of the page loading. Is ther开发者_开发技巧e is way to find out the progress of the webpage downloading precisely ?

Have a look at the UIWebViewDelegate documentation. You can find out when the UIWebView finishes loading with -webViewDidFinishLoad: Other than that, I think you're pretty limited to the API's available in UIWebView and UIWebViewDelegate.