title: How to get text / String from nth line of UILabel?
body: <p>Is there an easy way to get (or simply display) the text from a given line in a UILabel? </p>
  
  <p>My UILabel is correctly displaying my text and laying it out beautifully but occasionally I need to be able to just show certain lines but obviously I need to know how UILabel has positioned everything to do this.</p>
  
  <p>I know this could easily be done with a substring but I'd need to know the start and end point of the line.</p>
  
  <p>Alternatively I could scroll the UILabel if there was some kind of offset to the UILabel's frame and hide the rest of the content I didn't want to see.</p>
  
  <p>I've not been able to uncover anything that shows how this could be done easily. Anyone got any good ideas?</p>
  
  <p>Thanks</p>
  
  <p>iphaaw</p>