Meteor Iron Router - Router.go 回调可能吗？

Question

我有一个希望用户按下的链接。当他们按下它时，路由器将转到某个模板，然后运行 ​​Smoothscroll.js 代码以动画并向下滚动到锚标记。

      //When the user clicks on the link to get to the #contact anchor...
      //The code below does not work.
      Router.go('index');
      $('html,body').animate({
          scrollTop: $('#contact').offset().top
      }, 1200);

Router.go('index') 工作正常。

      $('html,body').animate({
          scrollTop: $('#contact').offset().top
      }, 1200);

在索引模板上也可以单独使用。

但是当我尝试将它们一起运行时，路由器会进入索引，但滚动不起作用。

知道我该怎么做吗？

编辑

这是我最新的 Meteor 1.0+ 和类似 /#contact 的路径

Router.route('/', {
  name: 'index'
});

Router.onAfterAction(function() {
    var self = this;
    // always start by resetting scroll to top of the page
    $(window).scrollTop(0);
    // if there is a hash in the URL, handle it
    if (this.params.hash) {
        // now this is important : Deps.afterFlush ensures that iron-router rendering
        // process has finished inserting the current route template into DOM so we
        // can manipulate it via jQuery, if you skip this part the HTML element you
        // want to scroll to might not yet be present in the DOM (this is probably
        // why your code fails in the first place)
        Tracker.afterFlush(function() {

            if (typeof $("#" + self.params.hash).offset() != "undefined"){
                var scrollTop = $("#" + self.params.hash).offset().top;

                $("html,body").animate({
                    scrollTop: scrollTop
                });

            }

        });
    }
});

Answer 1

除非您正在做一些花哨的事情，否则您可能不想使用Router.go，而是让 Iron-router 像往常一样在锚点单击时管理路由。

就滚动到元素而言，这是我正在使用的 onAfterAction 钩子，它支持任何路由和任何哈希 (/anyroute#anyhash)。

Router.onAfterAction(function() {
  // always start by resetting scroll to top of the page
  $(window).scrollTop(0);
  var hash=this.params.hash;
  // if there is a hash in the URL, handle it
  if (hash) {
    // now this is important : Tracker.afterFlush ensures that iron-router
    // rendering process has finished inserting the current route template
    // into DOM so we can manipulate it via jQuery, if you skip this part
    // the HTML element you want to scroll to might not yet be present in
    // the DOM (this is probably why your code fails in the first place)
    Tracker.afterFlush(function() {
      var element=$("#"+hash);
      var scrollTop = element.offset().top;
      $("html,body").animate({
        scrollTop: scrollTop
      });
    });
  }
});