This listener receives continuous one finger horizontal scrolling events.
Note that this listener will not report scrolling events if there has been two or more fingers on the touch pad after the initial down event.
onOneFingerScroll(float displacement, float delta, float velocity)
public abstract boolean onOneFingerScroll (float displacement, float delta, float velocity)
Called while the user is scrolling after initial horizontal scroll.
|displacement||distance between scroll state entering x value|
|delta||delta between two consecutive x motion events|
|velocity||velocity of current x motion event|
trueif the events were handled