Hide FloatingActionButton while scrolling down

FloatingActionButtonScrollingBehavior.java

public class FloatingActionButtonScrollingBehavior extends FloatingActionButton.Behavior {

    public FloatingActionButtonScrollingBehavior(Context context, AttributeSet attrs) {
        super();
    }

    @Override
    public boolean onStartNestedScroll(CoordinatorLayout coordinatorLayout,
                                       FloatingActionButton child,
                                       View directTargetChild, View target, int nestedScrollAxes) {
        return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL;
    }

    @Override
    public void onNestedScroll(CoordinatorLayout coordinatorLayout, FloatingActionButton child,
                               View target, int dxConsumed, int dyConsumed,
                               int dxUnconsumed, int dyUnconsumed) {
        if (dyConsumed > 0) {
            child.hide();
        } else if (dyConsumed < 0) {
            child.show();
        }
    }

}