title: Implement feature like iOS app closing vertical Swipe-to-Dismiss with ViewPager
body: <p>I currently have Views lined up horizontally in a ViewPager and can cycle through them with a PagerAdapter. Currently, to perform the action that I would like to do on swipe, I have to do a double-tap on the View's page. I could post code, but it's somewhat difficult to extract the necessary pieces...</p>
  
  <p>What I would like is the ability to swipe vertically on these views, have them translate vertically with swipe and  fade-out, and then perform an action when they reach a certain distance away from the edge of the device. </p>
  
  <p>To get an idea of what I am thinking, in the Gallery app you can pinch an opened photo to zoom-out and open a horizontal filmstrip view. From there you can swipe up (or down) on a photo/video to delete it. For those who do not have the same Gallery app, it's exactly like closing applications on iOS. </p>
  
  <p>I've tried scanning though the source code for the Gallery app, but no luck finding the correct Activity.</p>