@Override

public booleanonStartNestedScroll(finalCoordinatorLayout coordinatorLayout, finalFloatingActionButton child,

finalView directTargetChild, finalView target, final intnestedScrollAxes) {

// Ensure we react to vertical scrolling

returnnestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL

||super.onStartNestedScroll(coordinatorLayout,child,directTargetChild,target,nestedScrollAxes);

}

@Override

public voidonNestedScroll(CoordinatorLayout coordinatorLayout,FloatingActionButton child,

View target, intdxConsumed, intdyConsumed, intdxUnconsumed,

intdyUnconsumed) {

super.onNestedScroll(coordinatorLayout,child,target,dxConsumed,dyConsumed,dxUnconsumed,dyUnconsumed);

if(dyConsumed >0&& child.getVisibility() == View.VISIBLE) {

child.hide();

RxBus.getInstance().post(AppConstant.MENU_SHOW_HIDE,false);

}else if(dyConsumed <0&& child.getVisibility() != View.VISIBLE) {

RxBus.getInstance().post(AppConstant.MENU_SHOW_HIDE,true);

child.show();

}

}