亲宝软件园·资讯

展开

基于JavaScript实现熔岩灯效果导航菜单

东成熙就 人气:0

熔岩灯效果 就是鼠标移入的时候,背景跟着滑过去~

两方法如下:

方法一:两个文件,一个HTML,一个JS。

HTML源码,

<!DOCTYPE html> 
<html> 
<head> 
 <meta charset="utf-8"> 
 <meta http-equiv="X-UA-Compatible" content="IE=edge"> 
 <meta name="viewport" content="width=device-width, initial-scale=1"> 
 <!-- 
 <link href="favicon.ico" rel="shortcut icon" type="image/x-icon" /> 
 <link href="favicon.ico" rel="Bookmark" type="image/x-icon" /> 
 --> 
 <meta name="Generator" content="EditPlus®"> 
 <meta name="Author" content=""> 
 <meta name="Keywords" content=""> 
 <meta name="Description" content=""> 
 <title>Document</title> 
 <link href="" rel="stylesheet" /> 
 <style type="text/css"> 
  #nav { 
   position: relative; 
   background: #292929; 
   float: left; 
  } 
  #nav li { 
   float: left; 
   list-style: none; 
   border-right: 1px solid #4a4a4a; 
   border-left: 1px solid black; 
  } 
  #nav li a { 
   color: #e3e3e3; 
   position: relative; 
   z-index: 2; 
   float: left; 
   font-size: 30px; 
   font-family: helvetica, arial, sans-serif; 
   text-decoration: none; 
   padding: 30px 45px; 
  } 
  ul, li { 
   margin: 0; padding: 0; 
  } 
  #blob { 
   border-right: 1px solid #0059ec; 
   border-left: 1px solid #0059ec; 
   position: absolute; 
   top: 0; 
   z-index : 1; 
   background: #0b2b61; 
   background: -moz-linear-gradient(top, #0b2b61, #1153c0); 
   background: -webkit-gradient(linear, left top, left bottom, from(#0b2b61), to(#1153c0)); 
   -moz-border-radius: 4px; 
   -webkit-border-radius: 4px; 
   -moz-box-shadow: 2px 3px 10px #011331; 
   -webkit-box-shadow: 2px 3px 10px #011331; 
  } 
 </style> 
 <script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/1.9.1/jquery.min.js"></script> 
 <script type="text/javascript" src="http://apps.bdimg.com/libs/jqueryui/1.9.2/jquery-ui.min.js"></script> 
 <script type="text/javascript" src="jquery.spasticNav.js"></script> 
</head> 
<body> 
 <ul id="nav"> 
  <li><a href="#">Home</a></li> 
  <li id="selected"><a href="#">About</a></li> 
  <li><a href="#">Blog</a></li> 
  <li><a href="#">Contact</a></li> 
 </ul> 
 
<script type="text/javascript"> 
 $('#nav').spasticNav(); 
</script> 
</body> 
</html> 

JS源码,

(function($) { 
 
 $.fn.spasticNav = function(options) { 
  
  options = $.extend({ 
   overlap : 15, 
   speed : 500, 
   reset : 1500, 
   color : '#9f1f31', 
   easing : 'easeOutExpo' 
  }, options); 
  
  return this.each(function() { 
   
   var nav = $(this), 
    currentPageItem = $('#selected', nav), 
    blob, 
    reset; 
     
   $('<li id="blob"></li>').css({ 
    width : currentPageItem.outerWidth(), 
    height : currentPageItem.outerHeight() + options.overlap, 
    left : currentPageItem.position().left, 
    top : currentPageItem.position().top - options.overlap / 2, 
    backgroundColor : options.color 
   }).appendTo(this); 
    
   blob = $('#blob', nav); 
    
   $('li:not(#blob)', nav).hover(function() { 
    // mouse over 
    clearTimeout(reset); 
    blob.animate( 
     { 
      left : $(this).position().left, 
      width : $(this).width() 
     }, 
     { 
      duration : options.speed, 
      easing : options.easing, 
      queue : false 
     } 
    ); 
   }, function() { 
    // mouse out  
    reset = setTimeout(function() { 
     blob.animate({ 
      width : currentPageItem.outerWidth(), 
      left : currentPageItem.position().left 
     }, options.speed) 
    }, options.reset); 
  
   }); 
   
  }); // end each 
  
 }; 
 
})(jQuery); 

方法二,使用jquery插件 jquery.lavalamp.min.js 实现。

需要调用的文件有:jQuery库,jQuery缓动插件(jquery.easing.min.js),火焰灯效果插件(jquery.lavalamp.min.js)以及一个ul li列表的样式文件。

详情参看:

插件官网介绍:http://lavalamp.magicmediamuse.com

加载全部内容

相关教程
猜你喜欢
用户评论