title: How to set a mail Subject in UIActivityViewController?
body: <p>I want to set subject for email sharing in <code>UIActivityViewController</code> and also want to share in Twitter. I know in Twitter if we want to share — we need compress text to 140 chars. I checked many SO solutions, but nothing is working. </p>
  
  <p>Is this issue fixed in latest iOS releases? Any other "working solutions"?</p>