title: How to show and hide a view on button click
body: <p>I have one <code>uiview</code> , <code>Button</code> .At initial my view will be hidden So when my button click I need to show my <code>uiview</code> and when I click same button I need to hide same view.</p>
  
  <p>How to do that in swift 2.0.Now what I did is when I click first time - its showing.</p>
  
  <pre><code>@IBAction func PressRefine(sender: AnyObject) {
      menuView.hidden = false
  }
  </code></pre>
  
  <p>But again when I press it should hide.
  How to do that???</p>