title: Detect when UITableViewCell did load
body: <p>I need to be able to detect when my custom <code>UITableViewCell</code> has been loaded on screen, so that I can programmatically do stuff to the view inside it. The only code I could get working was implementing <code>layoutSubviews()</code> inside the custom <code>UITableViewCell</code>, but this is bad practice because <code>layoutSubviews()</code> is called more than one time. Also, putting my code in <code>awakeFromNib()</code> doesn't work because I need to call a delegate property, which hasn't been set at that point. How can I achieve this?</p>