title: CGAffineTransformMakeScale on UITextView
body: <p>I have an instance of UITextView. It is actually a box, and when user taps on it, I want to make it bigger. So I implemented CGAffineTransformMakeScale in tap event.</p>
  
  <p>The problem is, the text inside the UITextView gets fuzzy and blurry. I set contentMode = UIViewContentModeRedraw, but didn't affect it.</p>
  
  <p>Any idea? Many thanks in advance.</p>