AppBarLayout Behaviour Extension which shows/hides FAB on content scroll

FABAwareScrollingBehaviour

public class ScrollAwareFABBehavior
        extends AppBarLayout.ScrollingViewBehavior {
    public ScrollAwareFABBehavior(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public boolean layoutDependsOn(CoordinatorLayout parent,
                                   View child, View dependency) {
        return super.layoutDependsOn(parent, child, dependency) ||
                dependency instanceof FloatingActionButton;
    }

    @Override
    public boolean onStartNestedScroll(@NonNull CoordinatorLayout coordinatorLayout, @NonNull View child, @NonNull View directTargetChild, @NonNull View target, int axes, int type) {
        return axes == ViewCompat.SCROLL_AXIS_VERTICAL || super.onStartNestedScroll
                (coordinatorLayout, child,
                directTargetChild,
                target, axes, type);
    }

    @Override
    public void onNestedScroll(@NonNull CoordinatorLayout coordinatorLayout, @NonNull View child, @NonNull View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, int type) {
        super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed, type);
        if (dyConsumed > 0) {
            // User scrolled down -> hide the FAB
            List<View> dependencies = coordinatorLayout.getDependencies(child);
            for (View view : dependencies) {
                if (view instanceof FloatingActionButton) {
                    ((FloatingActionButton) view).hide();
                }
            }
        } else if (dyConsumed < 0) {
            // User scrolled up -> show the FAB
            List<View> dependencies = coordinatorLayout.getDependencies(child);
            for (View view : dependencies) {
                if (view instanceof FloatingActionButton) {
                    ((FloatingActionButton) view).show();
                }
            }
        }

    }
}