JS realizes sliding door animation effect
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></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>jQuery implementation
<script src = 'jquery-3.2.1.js'></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>"Sliding door" implementation method two: change the offset value of the image
html css code
<body>
<p class="picList">
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></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>jQuery implementation
<script src = 'jquery-3.2.1.js'></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>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!
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The above is the detailed content of JS realizes sliding door animation effect. For more information, please follow other related articles on the PHP Chinese website!
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