Affix在Bootstrap 4 alpha中不工作 [英] Affix is not working in Bootstrap 4 alpha

问题描述

根据Bootstrap 3文档我已经添加以下属性到导航栏：

According to Bootstrap 3 docs I have added following attributes to a navbar:

<nav class="navbar no-margin-bottom" data-spy="affix" data-offset-top="90" >
...
</nav>

向下滚动页面Bootstrap 4不是添加类到navbar的是affix。任何人都可以告诉我如何解决这个问题？ Bootstrap.js和jQuery.js正在工作。

After scrolling down the page Bootstrap 4 is not adding class to navbar which is affix. Can anyone tell me how to solve this problem? Bootstrap.js and jQuery.js are working.

推荐答案

通过这个jQuery代码实现你的目标：

Although the affix is removed from Bootstrap in version 4. However, you can achieve your goal through this jQuery Code:

$(window).on('scroll', function(event) {
    var scrollValue = $(window).scrollTop();
    if (scrollValue == settings.scrollTopPx || scrollValue > 70) {
         $('.navbar').addClass('navbar');
    } 
});

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