title: Objective C implementing a UIPickerView with a "Done" button
body: <p>I am trying to implement a "Done" button in a UIPickerView Similar to the one under this <a href="http://www.google.ca/imgres?um=1&amp;hl=en&amp;client=firefox-a&amp;sa=N&amp;rls=org.mozilla:en-US:official&amp;biw=1280&amp;bih=895&amp;tbm=isch&amp;tbnid=71GJsMJn9OBRZM:&amp;imgrefurl=http://timroadley.com/2012/02/26/core-data-basics-part-6-core-data-uipickerview/&amp;docid=xJ68Wie2M1dtJM&amp;imgurl=http://timroadley.com/wp-content/uploads/2012/02/RolePicker.jpg&amp;w=280&amp;h=252&amp;ei=46e7T6fPD8LjggfJz7z-Cg&amp;zoom=1&amp;iact=rc&amp;dur=379&amp;sig=107602261705778553768&amp;page=3&amp;tbnh=156&amp;tbnw=173&amp;start=66&amp;ndsp=28&amp;ved=1t:429,r:18,s:66,i:254&amp;tx=93&amp;ty=91" rel="noreferrer">link</a></p>
  
  <p>I looked in the class reference but I couldn t find it </p>
  
  <p>Thanks</p>