How to cancel UIWebView?

Question

I fashionably present a UIViewController with a UIWebView as my view. How to disable UIWebView when user clicks cancel button on it?

One of my ideas is to link the link to the http: // cancel button and then check

 - (void)webViewDidStartLoad:(UIWebView *)webView 

If webView.request.URL.host isEqualToString:@"cancel" , release the view controller.

Should the host have a dot in it, for example, "cancel.com"?

Answer 1

You are on the right track, but you are approaching a little. You do not need or want this to be an HTTP URL. Make your url cancel:

 <a href="cancel:">Thing to click</a> 

Then do webView:shouldStartLoadWithRequest:navigationType: in your business web view. Something like this (untested):

 - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType { if ([request.URL.scheme isEqualToString:@"cancel"]) { [self dismissModalViewControllerAnimated:YES]; return NO; } return YES; } 

Answer 2

It's not entirely clear if you want to stop loading in the web view or just let go of the modal view controller that contains it.

To stop the download:

 [webView stopLoading]; 

To reject a view controller:

 [self dismissModalViewControllerAnimated:YES]; 

Remember to set the delegate web view to nil before releasing it.