title: Navigate a WebView
body: <p>With a webview is it possible to set up a simple 'Back' button (either in a navigation bar or a top toolbar) that doesn't show the back button on the first URL of the WebView - and only appearing on a second URL to get back to the first?</p>
  
  <p>Unless I'm getting getting this wrong, in a lot of hybrid native/web apps such as News apps, you often see news articles in a table (HTML page rather than a 'programmed in xcode' table) which hyperlink to article detail pages (again, HTML rather than natively coded) - what I can't figure, is how the detail page (2nd URL in webview) displays with a 'back button' but the table (1st URL in webview) doesn't have the button showing in these type of apps?</p>
  
  <p>Currently, I have a webview as described, with a 'back' bar button item in a toolbar at the top of screen (outlet as 'cangoback' for WebView) but the button is visible when there's no page to 'go back' to - </p>
  
  <p>What I've got simply is:</p>
  
  <p>Webview - 1st URL, HTML table - 'back' button shows, but isn't active (of course)</p>
  
  <p>Webview - 2nd URL, HTML detail page - 'back' button shows, and can go back.</p>
  
  <p>How do you get it to only appear on 2nd URL, or be HIDDEN on 1st URL?</p>
  
  <p>Regards
  Randy</p>