JS realizes sliding door animation effect-JS Tutorial-php.cn

JS realizes sliding door animation effect

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Release： 2018-04-18 15:59:15

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This time I will bring you JS to realize the sliding door dynamic effect. What are the precautions for JS to realize the sliding door dynamic effect. The following is a practical case, let's take a look.

"Sliding door" implementation method one: change the picture width

html css code

<body>
 <p class="box">
  <ul>
   <!-- <li>![](images/slidepic2.jpg)</li> -->
   <li></li>
   <li></li>
   <li></li>
   <li></li>
   <li></li>
  </ul>
 </p>
</body>
<style>
  *{
   padding: 0;
   margin: 0;
  }
  .box{
   /*收缩状态:缩放时每个图片的大小240px 所以总大小1200px*/
   /*展开状态:当前图片宽度800px 其他图片宽度100px*/
   width: 1200px;
   height: 500px;
   border:1px solid red;
   margin: 50px auto;
  }
  .box ul{
   list-style: none;
   width: 1210px;
  }
  /*设置每一张图片的大小和float: left*/
  .box ul li{
   width: 240px;
   height: 500px;
   /*background: url(images/slidepic2.jpg);*/
   float: left;
  }
 </style>

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jQuery implementation

<script src = &#39;jquery-3.2.1.js&#39;></script>
<script>
 $(function(){
  //1遍历每一张li 获取每个元素设置对应的图片
  var lis = $('li');
  lis.each(function(index, element){
   //通过设置背景图片名称改变图片的显示
   var imgName = "images/slidepic" + (index + 2) +".jpg ";
   $(element).css('background', "url('"+ imgName +"')")
  });
  //2.展开状态
  //鼠标滑入改变对应图片宽度800 其他图片(兄弟)改为100
  lis.mouseenter(function(){
   // console.log(this); 当前的li DOM元素
   //当前的图片的宽度变为800
   $(this).stop().animate({width: 800});
   //其他图片的宽度变为100
   $(this).siblings('li').stop().animate({width: 100});
  });
  //3鼠标滑出是全部显示为收缩状态
  lis.mouseout(function(){
   lis.stop().animate({width: 240});
  });
 })
</script>

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"Sliding door" implementation method two: change the offset value of the image

html css code

<body>
 <p class="picList">
  <ul>
   <li>![](images/slidepic8.jpg)</li>
   <li>![](images/slidepic3.jpg)</li>
   <li>![](images/slidepic4.jpg)</li>
   <li>![](images/slidepic5.jpg)</li>
   <li>![](images/slidepic7.jpg)</li>
  </ul>
 </p>
</body>
<style>
  *{
   background-color: #aaa;
   padding: 0;
   margin: 0;
  }
  ul{list-style: none;}
  .picList{
   width: 1000px;
   height: 400px;
   /*border:1px solid #eee;*/
   margin:100px auto;
   position: relative;
   overflow: hidden;
  }
  /*设置定位属性 所有图片覆盖在起始位置*/
  .picList ul li{
   position: absolute;
   width: 1000px;
   height: 400px;
   top: 0;
  }
  img{
   width: 100%;
   height: 400px;
   cursor: pointer;
  }
</style>

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jQuery implementation

<script src = &#39;jquery-3.2.1.js&#39;></script>
<script >
 $(function(){
  //1获取所有的图片 设置初始的收缩状态left:i*200
  var lis = $('li');
  for(var i = 0; i < lis.length; i++){
   lis.eq(i).css({left:i*200 + 'px' });
  }
  //2.设置hover内置函数,实现鼠标滑入展开滑出收缩效果
  lis.hover(function(){
   var index = $(this).index(); //DOM对象转换jQuery对象
   //2.1鼠标滑入后,当前图片的前面图片偏移位置减小到 j*100位置
   for(var j = 0; j <= index; j++){
    lis.eq(j).stop().animate({left: j*100 + 'px'},300);
   }
   //2.2鼠标滑入后,当前图片的后面图片偏移位置扩大到 500+j*100位置
   for(var j = index + 1; j < lis.length; j++){
    lis.eq(j).stop().animate({left: 500+j*100 + 'px'},300);
   }
  },function(){ //2.3鼠标滑出后,所有图片恢复到原来的位置 i*200
   for(var i = 0; i < lis.length; i++){
    lis.eq(i).stop().animate({left: i*200 + 'px'},300);
   }
  });
 })
</script>

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NOTE: During the implementation of method 1, pay attention to the settings of width and image naming.

Tip: The jQuery code is used here, and the javaScript code can be implemented in the same way. Just modify the traversal process and built-in function methods, and rewrite the animation function (the previous notes have an encapsulated animate function, which can be directly introduced and used) .

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!