如何使用JavaScript或jQuery在某些点上滚动左右div到顶部？

时间：2016-10-22 12:57:18

标签： javascript jquery twitter-bootstrap

在下面的示例中，我能够在某个点上滚动右侧div到顶部但是同样的方法不适用于左侧div并且它破坏了整个布局，因为我必须使div固定并且当它变得固定它流过页面！

JSFiddle Here http://jsfiddle.net/xt9y7hqu/2/

任何帮助将不胜感激。谢谢

$(function() {
	var ele = "#rightPanel";
    $(window).scroll(
    	function(){
    		stick_right(ele);
    	});
$( window ).resize(function() {
  stick_right(ele);
});
    stick_right(ele);
});

function stick_right(ele){
	$(ele).css("top", Math.max(0,($('#sticky-anchor').offset().top) - $(this).scrollTop()));
	$(ele).css("left", $('#centerPanel').position().left + $('#centerPanel').outerWidth());
}
@import url('http://getbootstrap.com/dist/css/bootstrap.css');
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<nav class='navbar navbar-default'>
  <h3>
    Navbar
  </h3>
</nav>
<div class='container' id='sticky-anchor'>
  <div class='col-xs-3' id='leftPanel' style='background: pink'>
    <h3>
    Sticky Left div
    </h3>
    <p> 
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
    </p>
  </div>
  <div class='col-xs-5' id='centerPanel' style='background: lightblue'>
    <h3>
      None Sticky center div
    </h3>
   <p>
   Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
   </p>
  </div>
  <div class='col-xs-4' id='rightPanel' style='background: lightgreen; position: fixed'>
    <h3>
    Sticky Right div
    </h3>
    <p> 
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
    </p>
  </div>
</div>
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2 个答案:

答案 0 :(得分：1)

你走了。查看示例中的WORKING FIDDLE。

 $(function() {
    var ele = "#rightPanel";
    $(window).scroll(
        function(){
        stick_right(ele);
            var windowTop = $(window).scrollTop();
        var panelTop = $('#leftPanel').offset().top;

        if(windowTop > panelTop){
           $('#leftPanel').offset({'top': windowTop });
        }else{
           $('#leftPanel').offset({'top':$('#rightPanel').offset().top});
        }

        });
      $( window ).resize(function() {
        stick_right(ele);
      });
    stick_right(ele);
});

function stick_right(ele){
    $(ele).css("top", Math.max(0,($('#sticky-anchor').offset().top) - $(this).scrollTop()));
    $(ele).css("left", $('#centerPanel').position().left + $('#centerPanel').outerWidth());
}

答案 1 :(得分：0)

  1. 您未在stick_right面板上致电left。
  2. 右侧面板上有position: fixed（但不在左侧）。

    3. 我更改了代码以使用类sticky-panel（而不是元素的ID，这样你就可以在一个函数调用中使用多个面板

    $(function() {
	var ele = ".stickey-panel";
    $(window).scroll(
    	function(){
    		stick_panel(ele);
    	});
    stick_panel(ele);
});

function stick_panel(ele){
	$(ele).css("top", Math.max(0,($('#sticky-anchor').offset().top) - $(this).scrollTop()));
	$(ele).css("left", $('#centerPanel').position().left + $('#centerPanel').outerWidth());
}
    @import url('http://getbootstrap.com/dist/css/bootstrap.css');
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<nav class='navbar navbar-default'>
  <h3>
    Navbar
  </h3>
</nav>
<div class='container' id='sticky-anchor'>
  <div class='col-xs-3 stickey-panel' id='leftPanel' style='background: pink; position: fixed;'>
    <h3>
    Sticky Left div
    </h3>
    <p> 
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
    </p>
  </div>
  <div class='col-xs-5' id='centerPanel' style='background: lightblue'>
    <h3>
      None Sticky center div
    </h3>
   <p>
   Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
   </p>
  </div>
  <div class='col-xs-4 stickey-panel' id='rightPanel' style='background: lightgreen; position: fixed'>
    <h3>
    Sticky Right div
    </h3>
    <p> 
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
    </p>
  </div>
</div>
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