title: retrieve the text of WKInterfaceLabel in swift
body: <p>How can i get the text of label in Swift or Objective-C in WatchKit?<br/>
  The class is not UILabel but it is WKInterfaceLabel.<br/>
  I have also tried to search in <a href="https://developer.apple.com/library/prerelease/ios/documentation/WatchKit/Reference/WKInterfaceLabel_class/index.html#//apple_ref/doc/uid/TP40014960-CH1-DontLinkElementID_4" rel="nofollow noreferrer">class library of apple</a> but there is only three methods are available.</p>