Jquery scrollTo与easing和回调函数一起使用

以下是我迄今为止的代码：

    $('.my_button').click(function() {

        $.scrollTo( '#my_anchor', 1200, {easing:'easeInOutExpo'}, function() {          

            // function not working here

        });

    });

回调函数以前工作过，但由于我使用easing更改为scrollTo方法，它不再工作了

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为了明确起见，我只需要知道如何让回调函数再次工作，其他一切都很好。

没有第四个参数，但第三个参数（设置）接受onAfter回调

$.scrollTo( '#my_anchor', 1200, {easing:'easeInOutExpo', onAfter: function() { }});

从设置的源代码：

 * @param {Object,Function} settings Optional set of settings or the onAfter callback.
 *   @option {String} axis Which axis must be scrolled, use 'x', 'y', 'xy' or 'yx'.
 *   @option {Number} duration The OVERALL length of the animation.
 *   @option {String} easing The easing method for the animation.
 *   @option {Boolean} margin If true, the margin of the target element will be deducted from the final position.
 *   @option {Object, Number} offset Add/deduct from the end position. One number for both axes or { top:x, left:y }.
 *   @option {Object, Number} over Add/deduct the height/width multiplied by 'over', can be { top:x, left:y } when using both axes.
 *   @option {Boolean} queue If true, and both axis are given, the 2nd axis will only be animated after the first one ends.
 *   @option {Function} onAfter Function to be called after the scrolling ends.
 *   @option {Function} onAfterFirst If queuing is activated, this function will be called after the first scrolling ends.

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我在jQuery网站的任何地方都看不到这个

scrollTo（）

方法。@vertaxe是

easeInOutExpo

一个有效的缓解功能吗？好吧，只是不要把我的评论考虑进去：/一切都很好，我正在使用scrollTo插件和用于jQuery的Easing插件——我只需要知道如何让回调函数也工作。