Event called in response to an internal scroll in a view (i.e., the view scrolled its own contents).
Event called in response to an internal scroll in a view (i.e., the view scrolled its own contents). This is typically as a result of scrollBy(int, int) or scrollTo(int, int) having been called.
Parameters
l Current horizontal scroll origin.
t Current vertical scroll origin.
oldl Previous horizontal scroll origin.
oldt Previous vertical scroll origin.
Reference:
http://developer.android.com/reference/android/view/View.html#onScrollChanged(int, int, int, int)
