title: UIWebView with dynamic height inside a UIScrollView in Objective-C
body: <p>I am trying to make a UIWebView with "dynamic screen height". This webview is inside a UIScrollView, below other components. See the layout (it uses autolayout):</p>
  
  <p><a href="https://i.stack.imgur.com/oFNIc.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oFNIc.jpg" alt="enter image description here"></a></p>
  
  <p>My idea is to provide just one scroll (from UIScrollView - its working) and <strong>make the WebView viewport grow depending the content size</strong>. And its not working.</p>
  
  <p>What I did to try to do this:</p>
  
  <ol>
  <li>UIWebView property "scale page to fit " is on;</li>
  <li>UIWebView is unpaginated;</li>
  <li>UIWebView does not allow user interaction.</li>
  </ol>
  
  <p>In my UIViewController:</p>
  
  <pre><code>- (void) viewDidAppear:(BOOL)animated {
      NSString *urlString = @"MY URL GOES HERE";
      NSURL *url = [NSURL URLWithString:urlString];
      NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url];
      [_webViewDescription loadRequest:urlRequest];
      _webViewDescription.delegate = self;
      _webViewDescription.scrollView.scrollEnabled = NO;
      _webViewDescription.scrollView.bounces = NO;
  }
  </code></pre>
  
  <p>My UIWebViewDelegate:</p>
  
  <pre><code>- (void)webViewDidFinishLoad:(UIWebView *)webView {
      CGRect frame = webView.frame;
      frame.size.height = 1;
      webView.frame = frame;
      CGSize fittingSize = [webView sizeThatFits:CGSizeZero];
      frame.size = fittingSize;
  
      webView.frame = frame;
  
  
      NSLog(@"size: %f, %f", fittingSize.width, fittingSize.height);
  
      _myScrollView.contentSize = webView.bounds.size;
  }
  </code></pre>
  
  <p>When I run the code, it prints the correct UIScrollView size and UIWebView size. The UIScrollView height got bigger, but the UIWebView maintains the same height from the first loading.</p>
  
  <p>I am testing in a real device.</p>