title: Checking if a string is a url - Objective-C
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/1471201/how-to-validate-an-url-on-the-iphone">How to validate an url on the iPhone</a>  </p>
  </blockquote>
  
  
  
  <p>In Objective-C, does anyone have a good method to test if a given string appears to be a URL?</p>