title: View Moves After addSubview
body: <p>I have a <code>UIImageView</code> and on top of it a <code>UITextView</code>, I need to take a screenShot of the image and the text together and for that I need the text to be inside the <code>UIImageView</code> so I use <code>imageView.addSubview(textView)</code>.</p>
  
  <p>The problem is that when I use addSubview the textView jumps down and left and is no more on top of the imageView.</p>
  
  <p>Why is it happening and how can I fix it?</p>