iPhone - Auto resizing UIWebView content do not fit the frame

Question

I\'m generating an UIWebView into my viewDidLoad method, with a tiny size (let\'s say something like 50x70). And then I put it into a super UIView.

I\'d like to ma

Answer 1

For those, who faced same problem, you can turn off the UIWebView native scrolling by

self.webView.scrollView.scrollEnabled = NO;

and add a separate scrollView which will handle scrolling and zooming instead of webView's native scroll. Next implement

- (void) webViewDidFinishLoad:(UIWebView *)webView
{
   CGRect frame = _webView.frame;
   CGSize fittingSize = [_webView sizeThatFits:_webView.scrollView.contentSize];
   frame.size = fittingSize;
   _webView.frame = frame;
   self.scrollView.contentSize = self.webView.scrollView.contentSize;
}

to set proper webView frame. Hope this helps someone. Good coding!

Answer 2

For Swift 3, I have achieved the same with

DispatchQueue.main.async {
                if let finalURL = URL(string: urlString) {
                    let request = URLRequest(url: finalURL)

                    // self.webView.sizeToFit()
                    self.webView.scalesPageToFit = true
                    self.webView.contentMode = .scaleAspectFit
                    self.webView.loadRequest(request)
                }
            }