title: UIBezierPath to draw a line that follows a touch, in Swift?
body: <p>Trying to convert <a href="https://stackoverflow.com/a/7393412/265692">this answer</a> to Swift, but I'm not sure what to do about this line:</p>
  
  <pre><code>[self.image drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
  </code></pre>
  
  <p>Any help is appreciated, thanks!</p>