title: Track the velocity of a moving view
body: <p>I'm running into issues when using the VelocityTracker class. Velocity tracking seems to work very well if you are measuring the velocity of touch events on a non-moving view, but as soon as the view starts moving with your finger (using using translateY/X or setY/X), the velocity is completely random (I think the velocity is calculated using the view's position?). Does anyone have any suggestions for getting an accurate velocity of your movement when swiping a view?</p>
  
  <p>Notes:
  I am using the touch events from my View's onTouchListener for Velocity tracking. </p>
  
  <p>Cheers</p>