search
HomeWeb Front-endJS TutorialjQuery realizes the fade-in and fade-out effect of picture text_jquery

This example mainly explains the effect of jquery imitating Sina Weibo image text list up and down fading in and out intermittent scrolling up and down. I share it with you for your reference. The specific content is as follows

1. Effect and function description: imitation Sina Weibo picture text list fades in and out and scrolls up and down intermittently

2. The implementation principle is to first set the div to display only 4 pictures. The extra pictures will be automatically hidden. Then add an animation event to the pictures so that they can be scrolled and played. The up and down scrolling effect is played by the li tag. The content, pictures and text inside treat each li as a whole. When scrolling, they enter the div and are displayed. When they finally leave the div, they are hidden. Set a time for the entire animation effect to run completely.

3. Running environment

It can be implemented in IE6 IE7 IE8 and above in Firefox and Google Chrome browsers

4. Create a new file for the compressed package of all pictures, and then unzip the package and put it into a folder. The compressed package of the pictures can be seen and downloaded at the bottom of the page. After downloading, there is no need to modify the folder name because it has already been written and The path within html5 matches

5. When saving the created html file, change the encoding type to (UTF-8 with signature) so that some Chinese characters can be displayed normally. Change the saving type (T) to (all files (*.*) ), put the html5 and decompressed image folders in the same folder

Rendering:

Code:

<!DOCTYPE HTML">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<style type="text/css" media="screen">
*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;}
body{font:12px/180% Arial, Helvetica, sans-serif, "新宋体";}
.demo{width:500px;margin:30px auto 0 auto;}
.demo h2{font-size:16px;color:#333;height:52px;line-height:24px;}
/* sidebar */
#sidebar{color:#AFB0B1;background:#0D171A;float:left;margin:0 0 24px;padding:15px 10px 10px;width:300px;}
#sidebar li{height:90px;overflow:hidden;}
#sidebar li h5{color:#A5A9AB;font-size:1em;margin-bottom:0.5em;}
#sidebar li h5 a{color:#fff;text-decoration:none;}
#sidebar li img{float:left;border:solid 3px #fff;margin-right:8px;display:inline;}
#sidebar li .info{color:#B1B1B1;font-size:1em;}
#sidebar .spyWrapper{height:100%;overflow:hidden;position:relative;}
</style>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script type="text/javascript">
(function($){
 $.fn.simpleSpy = function (limit, interval){
  limit = limit || 4;
  /*让div始终显示4个单位的高度*/
  interval = interval || 4000;
  /*控制每个动画效果的时间4000毫秒就是4秒 从最下面的图片消失到第5张图片的从上面显示出来一个动画2秒一共4秒的时间*/
  return this.each(function(){
   var $list = $(this),
   /*获得所有列表项目的缓存*/
   items = [],
   /*未初始化*/
   currentItem = limit,
   total = 0,
   /*初始化以后*/
   height = $list.find('> li:first').height();
   /*列表限制li元素*/
   $list.find('> li').each(function(){
   /*获得缓存*/
    items.push('<li>' + $(this).html() + '</li>');
    /*获得所有列表的li里面的缓存*/
   });
 
   total = items.length;
   /*始终显示在缓存里的li*/
 
   $list.wrap('<div class="spyWrapper" />').parent().css({height : height * limit});
   /*控制div在图片消失的时候依然保持同样的高度不会因为div的消失而变化*/
 
   $list.find('> li').filter(':gt(' + (limit - 1) + ')').remove();
   /*通过调用遍历方法获得所有li元素在实现移除的方法*/
   
   function spy(){
   /*开始第二个图片从最上方插入的效果*/
    var $insert = $(items[currentItem]).css({height : 0,opacity : 0,display : 'none'}).prependTo($list);
    /*插入一个新的div,透明度和高度为零*/
 
    $list.find('> li:last').animate({ opacity : 0}, 1000, function(){
    /*通过遍历插入一个动画出现的效果 时间为1秒*/
     $insert.animate({ height : height }, 1000).animate({ opacity : 1 }, 1000);
     /* 增加新的第一个div的高度*/
     $(this).remove(); 
     /*这个移除的效果是什么呢 就是在当我们第一次加载完页面的时候都会有几个只有图片没有属性值的li 清除就是在第一个动画结束后把没有属性的li给删除掉 没有属性的就是 没有高的 没有动画效果的li*/
    });
 
    currentItem++;
    /*永远在第一个li位置显示出现的是下一个li图片*/
    if(currentItem >= total){
    /*如果4张图片大于或等于所有的大于或等于整个图片的的话*/
     currentItem = 0;
     /*那么就从0开始*/
    }
    setTimeout(spy, interval)
    /*在ul和4秒内完成*/
   }
 
   spy();
   /*效果的整个开关*/
  });
 }; 
})(jQuery);
</script>
 
<script type="text/javascript">
$(document).ready(function(){
 $('ul.spy').simpleSpy();
 /*ul.spy调用simpleSpy()模版方法*/
});
</script>
 
</head>
<body>
 
<div class="demo">
 
 <h2 id="jquery仿新浪微博图片文字列表间隙滚动淡进淡出滚动">jquery仿新浪微博图片文字列表间隙滚动淡进淡出滚动</h2>
 
 <div id="sidebar">
  <ul class="spy">
   <li>
    <a href="#" title="View round"><img  src="/static/imghwm/default1.png"  data-src="images/1.png"  class="lazy"     style="max-width:90%"  style="max-width:90%" title="" / alt="jQuery realizes the fade-in and fade-out effect of picture text_jquery" ></a>
    <h5 id="a-href-htt-title-View-round-round-a"><a href="htt#" title="View round">round</a></h5>
    <p class="info">Nov 29th 2008 by neue</p>
   </li>
   <li>
    <a href="#" title="View reflet"><img  src="/static/imghwm/default1.png"  data-src="images/2.png"  class="lazy"     style="max-width:90%"  style="max-width:90%" title="" / alt="jQuery realizes the fade-in and fade-out effect of picture text_jquery" ></a>
    <h5 id="a-href-title-View-reflet-reflet-a"><a href="#" title="View reflet">reflet</a></h5>
    <p class="info">Nov 29th 2008 by neue</p>
   </li>
   <li>
    <a href="#" title="View Kate Moross Little Big Planet"><img  src="/static/imghwm/default1.png"  data-src="images/3.png"  class="lazy"     style="max-width:90%"  style="max-width:90%" title="" / alt="jQuery realizes the fade-in and fade-out effect of picture text_jquery" ></a>
    <h5 id="a-href-title-View-Kate-Moross-Little-Big-Planet-Kate-Moross-Little-Big-Planet-a"><a href="#" title="View Kate Moross Little Big Planet">Kate Moross Little Big Planet</a></h5>
    <p class="info">Nov 29th 2008 by neue</p>
   </li>
   <li>
    <a href="#" title="View Untitled"><img  src="/static/imghwm/default1.png"  data-src="images/4.png"  class="lazy"     style="max-width:90%"  style="max-width:90%" title="" / alt="jQuery realizes the fade-in and fade-out effect of picture text_jquery" ></a>
    <h5 id="a-href-title-View-Untitled-Untitled-a"><a href="#" title="View Untitled">Untitled</a></h5>
    <p class="info">Nov 29th 2008 by mike1052</p>
   </li>
   <li>
    <a href="#" title="View My Tutorial's Library"><img  src="/static/imghwm/default1.png"  data-src="images/5.png"  class="lazy"     style="max-width:90%"  style="max-width:90%" title="" / alt="jQuery realizes the fade-in and fade-out effect of picture text_jquery" ></a>
    <h5 id="a-href-title-View-My-Tutorial-s-Library-My-Tutorial-s-Library-a"><a href="#" title="View My Tutorial's Library">My Tutorial's Library</a></h5>
    <p class="info">Nov 29th 2008 by FrancescoOnAir</p>
   </li>
   <li>
    <a href="#" title="View Sandy — your free personal email assistant - Log in"><img  src="/static/imghwm/default1.png"  data-src="images/6.png"  class="lazy"     style="max-width:90%"  style="max-width:90%" title="" / alt="jQuery realizes the fade-in and fade-out effect of picture text_jquery" ></a>
    <h5 id="a-href-title-View-Sandy-your-free-personal-email-assistant-Log-in-Sandy-your-free-a"><a href="#" title="View Sandy — your free personal email assistant - Log in">Sandy — your free</a></h5>
    <p class="info">Nov 29th 2008 by John Doe</p>
   </li>
   <li>
    <a href="#" title="View Sandy — your free personal email assistant - Log in"><img  src="/static/imghwm/default1.png"  data-src="images/7.png"  class="lazy"     style="max-width:90%"  style="max-width:90%" title="" / alt="jQuery realizes the fade-in and fade-out effect of picture text_jquery" ></a>
    <h5 id="a-href-title-View-Sandy-your-free-personal-email-assistant-Log-in-Sandy-your-free-a"><a href="#" title="View Sandy — your free personal email assistant - Log in">Sandy — your free</a></h5>
    <p class="info">Nov 29th 2008 by John Doe</p>
   </li>
   <li>
    <a href="#" title="View Sandy — your free personal email assistant"><img  src="/static/imghwm/default1.png"  data-src="images/8.png"  class="lazy"     style="max-width:90%"  style="max-width:90%" title="" / alt="jQuery realizes the fade-in and fade-out effect of picture text_jquery" ></a>
    <h5 id="a-href-title-View-Sandy-your-free-personal-email-assistant-Sandy-your-free-a"><a href="#" title="View Sandy — your free personal email assistant">Sandy — your free</a></h5>
    <p class="info">Nov 29th 2008 by John Doe</p>
   </li>
   <li>
    <a href="#" title="View Values of n Blog"><img  src="/static/imghwm/default1.png"  data-src="images/9.png"  class="lazy"     style="max-width:90%"  style="max-width:90%" title="" / alt="jQuery realizes the fade-in and fade-out effect of picture text_jquery" ></a>
    <h5 id="a-href-title-View-Values-of-n-Blog-Values-of-n-Blog-a"><a href="#" title="View Values of n Blog">Values of n Blog</a></h5>
    <p class="info">Nov 29th 2008 by John Doe</p>
   </li>
  </ul>
 </div>
  
</div>
 
</body>
</html>

The above is the code for jQuery to implement the fade-in and fade-out effect of image text. I hope it will be helpful to everyone's learning.

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Understanding the JavaScript Engine: Implementation DetailsUnderstanding the JavaScript Engine: Implementation DetailsApr 17, 2025 am 12:05 AM

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python vs. JavaScript: The Learning Curve and Ease of UsePython vs. JavaScript: The Learning Curve and Ease of UseApr 16, 2025 am 12:12 AM

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python vs. JavaScript: Community, Libraries, and ResourcesPython vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AM

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

From C/C   to JavaScript: How It All WorksFrom C/C to JavaScript: How It All WorksApr 14, 2025 am 12:05 AM

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

JavaScript Engines: Comparing ImplementationsJavaScript Engines: Comparing ImplementationsApr 13, 2025 am 12:05 AM

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

Beyond the Browser: JavaScript in the Real WorldBeyond the Browser: JavaScript in the Real WorldApr 12, 2025 am 12:06 AM

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

Building a Multi-Tenant SaaS Application with Next.js (Backend Integration)Building a Multi-Tenant SaaS Application with Next.js (Backend Integration)Apr 11, 2025 am 08:23 AM

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing

How to Build a Multi-Tenant SaaS Application with Next.js (Frontend Integration)How to Build a Multi-Tenant SaaS Application with Next.js (Frontend Integration)Apr 11, 2025 am 08:22 AM

This article demonstrates frontend integration with a backend secured by Permit, building a functional EdTech SaaS application using Next.js. The frontend fetches user permissions to control UI visibility and ensures API requests adhere to role-base

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Chat Commands and How to Use Them
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.