title: Heat Map of user interaction with a touchscreen application (Android, iOS)
body: <p>I noticed there are a large number of player guides on YouTube that show a "heat map" or visual of typical user interaction with a touchscreen application, like this example:</p>
  
  <p><a href="http://www.youtube.com/watch?v=H5mVS1sEAZI" rel="nofollow">http://www.youtube.com/watch?v=H5mVS1sEAZI</a></p>
  
  <p>I have an Android application being used for research purposes, and we are already tracking (in a SQLLite database) when and where users touch / interact with a video.</p>
  
  <p>We would love to create a visualization of where and when users are touching the screen.</p>
  
  <p>Are there any tools, APIs, etc. out there that anyone has seen for generating this kind of data visualization?</p>
  
  <p>If not, is there any good way to take screenshots of the video / application at a moment in time when users touch the application?</p>