title: override UILabel setText: method in Swift
body: <p>I do have the problem that I got some crashes in iOS with a <code>UILabel</code> subclass. Now I would like to override <code>setText:</code> to call <code>layoutIfNeeded</code> as this may solve the problem according to some stackoverflow-answers (<a href="https://stackoverflow.com/questions/26751801/autolayout-issue-for-uitextfield-in-ios%20e.g.">e.g. this one</a>).</p>
  
  <p>But how can I achieve this? In Objective-C it was no big deal, but I don't find a way to override <code>setText:</code> in Swift.</p>