How to know UIWebView has finished loading

how can I check when user clicks and page has load开发者_StackOverflow中文版ed? Delegate

- (void)webViewDidFinishLoad:(UIWebView *)webView Not working..

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When the user taps a link, the UIWebView's delegate is sent the message webView:shouldStartLoadWithRequest:navigationType: and when the content is done loading, it sends the message webViewDidFinishLoad:.

Make sure you've set the delegate property on the web view.