title: Removing non-selected items from UIPickerView
body: <p>I'm working on a nib file that has multiple <code>UIPickerViews</code> on it and as you can see below, it is extremely crowded.  I basically want to make it clean and remove all of the "gray" items and just show the selected item.  If you have any ideas that would make the page cleaner please share, this is more of a <code>UI</code> problem than a logic or code problem.  Thanks in advance.</p>
  
  <p><img src="https://i.stack.imgur.com/78pHi.png" alt="enter image description here"></p>