获取UIWebView的内容高度

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1. #pragma mark - UIWebview delegete
2. - (void)webViewDidFinishLoad:(UIWebView *)webView
3. {
4. CGFloat height = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.offsetHeight"] floatValue];
5. CGRect frame = webView.frame;
6. webView.frame = CGRectMake(frame.origin.x, frame.origin.y, frame.size.width, height);
7. }

http://blog.csdn.net/aluoshuai/article/details/7708879