Question

I have a webview in which I want to invoke Obj-C Code, I do it like in thisTutorial

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
  NSString *absoluteUrl = [request.URL absoluteString];
  NSLog(@"STRING: %@",absoluteUrl);//prints out didTap://button1
  NSString *sayHello = @"didTap://button1";
  if ([sayHello isEqualToString: absoluteUrl]) {
      [self sayHello];
      return NO;
  }
return YES;
}

however [self sayHello] is never being invoked. Anybody knows why?

Answer 1

Looks like there are trailing spaces or other white characters involved. That would explain the inequality.

Also, you should perhaps use the standard method of NSURL:

NSString *absoluteURL = [request.URL absoluteString];

To remove spaces, do this:

absoluteURL = [absoluteURL stringByReplacingOccurrencesOfString:@" " 
                           withString:@""];