@Override
    public void onScrollStateChanged(final AbsListView absListView, final int state) {
        mScrollState = state;
    }
Tame default fast scroll behavior a bit:
- only activate fast scroll when in FLING mode, not in standard scroll mode;
- and only acticate after having covered a certain minimum amount of entries (3) in FLING mode
- automatically disable after a certain amount of time (1s) without scrolling
main/src/main/java/cgeo/geocaching/ui/FastScrollListener.java