jQuery 平滑滚动锚点导航

jQuery smooth scrolling anchor navigation

提问by user3574766

I have a list based navigation at the top of my site, it's a one page site so the a hrefs are anchors to sections on the page. I've used this code: jQuery smooth scroll positioning doesn't work

我的网站顶部有一个基于列表的导航，它是一个单页网站，因此 a href 是页面上各部分的锚点。我用过这个代码：jQuery 平滑滚动定位不起作用

Navigation:

导航：

<nav>
   <ul class="navigation">
      <li class="navigation"><a class="scroll" href="#about-me">about me</a>
      </li>
      <li class="navigation"><a class="scroll" href="#my-skills" >my skills</a>
      </li>
      <li class="navigation"><a class="scroll" href="#portfolio">portfolio</a>
      </li>
      <li class="navigation"><a class="scroll" href="#contact">contact</a>
      </li>    
   </ul>
</nav>

Section/div:

节/格：

<section id="contact"> <!---->
    <div class="panel" id="contact">
        <h2>Contact</h2>
    </div>
</section> <!---->

Javascript used:

使用的Javascript：

<script type="text/javascript">
$(document).ready(function(){
    $('a[href^="#"]').on('click',function (e) {
        e.preventDefault();

        var target = this.hash;
        $target = $(target);

        $('html, body').stop().animate({
            'scrollTop':  parseInt($target.offset().top,10);
        }, 900, 'swing', function () {
            window.location.hash = target;
        });
    });
});
</script>

The anchor works and it jumps to the section, but with no scrolling?

锚点工作并跳转到该部分，但没有滚动？

回答by Guruprasad Rao

There are few problems in your code:

你的代码有几个问题：

• You haven't closed your lis properly
• You have same ids for sectionand divwhich is invalid

• 你没有li正确关闭你的s
• 你有相同的ids for sectionand divwhich is invalid

<section id="contact"> <!---->
    <div class="panel" id="contact">

So correcting the above mistakes I would like to add one more change in your JSwhich is:

因此，纠正上述错误，我想在您的JS 中再添加一项更改，即：

• No need to add parseIntto scrollTop. You can directly go with the offset().top

• 无需添加parseInt到scrollTop. 你可以直接去offset().top

DEMO

演示

$(document).ready(function(){
    $('a[href^="#"]').on('click',function (e) {
        e.preventDefault();
        var target = this.hash;
        $target = $(target);
        $('html, body').stop().animate({
            'scrollTop':  $target.offset().top //no need of parseInt here
        }, 900, 'swing', function () {
            window.location.hash = target;
        });
    });
});

回答by user3574766

Try this code:

试试这个代码：

 <script type="text/javascript">
    $(document).ready(function(){
    $('a[href^="#"]').on('click',function (e) {
        e.preventDefault();

        var target = this.hash;
        var $target = $(target);
        var scroll;

        if($(window).scrollTop()==0){
            scroll =  ($target.offset().top) - 160
        }else{
            scroll =  ($target.offset().top) - 60
        }
        $('html, body').stop().animate({
            'scrollTop': scroll
        }, 900, 'swing', function () {
            //window.location.hash = target;
        });
    });
});
</script>