title: How to detect scrolling action in Android?
body: <p>I have a horizontal scroll view, and I want to detect a scrolling action , </p>
  
  <p>1) is there a listener to detect when the user make scrolling ? </p>
  
  <p>2) and can I know whether the scroll is left to right or right to left ?</p>
  
  <p>EDIT :what is the required listener in HorizontalScrollView ? I don't find OnScrollListener !</p>