Question

当我使用Backbone.js基于哈希的路由时，我将如何使用Bootstrap的Scrollspy？

Backbone路由器示例，它创建页面www.example.com/#somePage/123

var AppRouter = Backbone.Router.extend({
   routes: {
      "": "home",
      "somePage/:id": "somePage"
   },
   somePage: function (id) {
      console.log("do something");
   }
});

$(document).ready(function(){
   window.app = new AppRouter();
   Backbone.history.start();
});

Twitter scrollSpy示例，它应该将＃anchor-value附加到URL的末尾：

 <div id="navbar" class="row-fluid">
        <ul class="nav nav-pills navbar">
            <li class="active">
                <a href="#step1">1</a>
            </li>
            <li>
                <a href="#step2">2</a>
            </li>
      </ul>
    </div>
    <div data-spy="scroll" data-target=".navbar">
        <h4 id="step1">Step 1</h4>
        <p>Ad leggings keytar, brunch id art party dolor labore. Pitchfork yr enim lo-fi before they sold out qui. Tumblr farm-to-table bicycle rights whatever. Anim keffiyeh carles cardigan. Velit seitan mcsweeney's photo booth 3 wolf moon irure. Cosby sweater lomo jean shorts, williamsburg hoodie minim qui you probably haven't heard of them et cardigan trust fund culpa biodiesel wes anderson aesthetic. Nihil tattooed accusamus, cred irony biodiesel keffiyeh artisan ullamco consequat.</p>
        <h4 id="step2">Step 2</h4>
        <p>Veniam marfa mustache skateboard, adipisicing fugiat velit pitchfork beard. Freegan beard aliqua cupidatat mcsweeney's vero. Cupidatat four loko nisi, ea helvetica nulla carles. Tattooed cosby sweater food truck, mcsweeney's quis non freegan vinyl. Lo-fi wes anderson +1 sartorial. Carles non aesthetic exercitation quis gentrify. Brooklyn adipisicing craft beer vice keytar deserunt.</p>
    </div>

这需要将网址转换为www.example.com/#somePage/123#step1，这不起作用。

Answer 1

以下是使用Bootstrap demo Scrollspy：https://jsfiddle.net/8wvdpddq/

的可能解决方案

假设您希望更新URL并在用户滚动时添加历史记录点，以下代码应该实现：

$('body').on('activate.bs.scrollspy', function () {
  var active = $('nav li:not(.dropdown).active a').attr('href').slice(1);
  window.app.navigate(active, {trigger: true});
  console.log('update url/history to ' + active);
})

在这种情况下，trigger也会设置，这意味着您的路由处理程序将会触发，如果您不想这样做，只需删除此选项。

Bootstrap scrollspy和骨干路由

1 个答案: