title: want to implement the effect of thumbnail removal
body: <p>I want to implement the effect of thumbnail removal. What I want to do is when user touched screen for 2 seconds, that thumbnail start to wobble and a red sign appears in the top left point. then user tap the red sign that thumbnail will be removed.</p>
  
  <p>Is there anyone knows how to implement that?</p>
  
  <p>Thanks a lot.</p>