Reduce speed of smooth scroll in scroll view

Question

I have a scroll View. I performed smooth-scroll.using smoothScrollBy().It all works fine, but I want to change the duration of the smooth-scroll. Smooth-scroll happens very fast

Answer 1

whichScreen = Math.max(0, Math.min(whichScreen, getBase().getDocumentModel().getPageCount()-1));
mNextScreen = whichScreen;
final int newX = whichScreen * getWidth();
final int delta = newX - getScrollX();
//scroller.startScroll(getScrollX(), 0, delta, 0, Math.abs(delta) * 2);
scroller.startScroll(getScrollX(), 0, delta, 0, Math.abs(delta));
invalidate();