iOS UIWebview自適應實際內容高度

方法1：獲取webview中scrovllview的contentsize進行設置

-(void)webViewDidFinishLoad:(UIWebView *)webView{
    CGFloat webViewHeight=[webView.scrollView contentSize].height;
    CGRect newFrame = webView.frame;
    newFrame.size.height = webViewHeight;
    webView.frame = newFrame;
}

方法2：執行js語句 直接獲取html文檔的dom高度

-(void)webViewDidFinishLoad:(UIWebView *)webView{
    CGFloat webViewHeight= [[webView stringByEvaluatingJavaScriptFromString: @"document.body.offsetHeight"]floatValue];
// CGFloat webViewHeight= [[webView stringByEvaluatingJavaScriptFromString: @"document.body.scrollHeight"]floatValue];
    CGRect newFrame = webView.frame;
    newFrame.size.height = webViewHeight;
    webView.frame = newFrame;
}

原文地址爲：http://www.skyfox.org/ios-webview-autofit-content-height.html