Jquery code to achieve image carousel effect (1)_javascript skills-JS Tutorial-php.cn

Home

Web Front-end

JS Tutorial

Jquery code to achieve image carousel effect (1)_javascript skills

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

May 16, 2016 pm 03:45 PM

The article is not well written, so I would like to ask experts for advice. Without further ado, let’s take a look at the rendering:

Online demo Download source code

The first is the initialization part: hide all pictures except the first carousel picture, hide the forward and backward buttons, and make the first index button active.

Event part: Bind the mouse up and leave event processing through jquery's hover() method. jquery's bind() method binds the mouse click event processing for forward, backward flipping, and carousel control: pre() , next(), play(), start() starts automatic rotation, and stop() stops automatic rotation.

The next article is a pure jquery carousel plug-in, which can customize various effects, convenient configuration and extensibility.

The following is the overall code:

index.html
[html] view plaincopy
<!DOCTYPE html> 
<html> 
<head> 
<meta charset="UTF-8"> 
<title>jquery轮播效果图 </title> 
<script type="text/javascript" src="scripts/jquery-1.9.1.js"></script> 
<style type="text/css"> 
 * { 
  padding: 0px; 
  margin: 0px; 
 } 
 a { 
  text-decoration: none; 
 } 
 ul { 
  list-style: outside none none; 
 } 
 .slider, .slider-panel img, .slider-extra { 
  width: 650px; 
  height: 413px; 
 } 
 .slider { 
  text-align: center; 
  margin: 30px auto; 
  position: relative; 
 } 
 .slider-panel, .slider-nav, .slider-pre, .slider-next { 
  position: absolute; 
  z-index: 8; 
 } 
 .slider-panel { 
  position: absolute; 
 } 
 .slider-panel img { 
  border: none; 
 } 
 .slider-extra { 
  position: relative; 
 } 
 .slider-nav { 
  margin-left: -51px; 
  position: absolute; 
  left: 50%; 
  bottom: 4px; 
 } 
 .slider-nav li { 
  background: #3e3e3e; 
  border-radius: 50%; 
  color: #fff; 
  cursor: pointer; 
  margin: 0 2px; 
  overflow: hidden; 
  text-align: center; 
  display: inline-block; 
  height: 18px; 
  line-height: 18px; 
  width: 18px; 
 } 
 .slider-nav .slider-item-selected { 
  background: blue; 
 } 
 .slider-page a{ 
  background: rgba(0, 0, 0, 0.2); 
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#33000000,endColorstr=#33000000); 
  color: #fff; 
  text-align: center; 
  display: block; 
  font-family: "simsun"; 
  font-size: 22px; 
  width: 28px; 
  height: 62px; 
  line-height: 62px; 
  margin-top: -31px; 
  position: absolute; 
  top: 50%; 
 } 
 .slider-page a:HOVER { 
  background: rgba(0, 0, 0, 0.4); 
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#66000000,endColorstr=#66000000); 
 } 
 .slider-next { 
  left: 100%; 
  margin-left: -28px; 
 } 
</style> 
<script type="text/javascript"> 
 $(document).ready(function() { 
  var length, 
   currentIndex = 0, 
   interval, 
   hasStarted = false, //是否已经开始轮播 
   t = 3000; //轮播时间间隔 
  length = $('.slider-panel').length; 
  //将除了第一张图片隐藏 
  $('.slider-panel:not(:first)').hide(); 
  //将第一个slider-item设为激活状态 
  $('.slider-item:first').addClass('slider-item-selected'); 
  //隐藏向前、向后翻按钮 
  $('.slider-page').hide(); 
  //鼠标上悬时显示向前、向后翻按钮,停止滑动，鼠标离开时隐藏向前、向后翻按钮，开始滑动 
  $('.slider-panel, .slider-pre, .slider-next').hover(function() { 
   stop(); 
   $('.slider-page').show(); 
  }, function() { 
   $('.slider-page').hide(); 
   start(); 
  }); 
  $('.slider-item').hover(function(e) { 
   stop(); 
   var preIndex = $(".slider-item").filter(".slider-item-selected").index(); 
   currentIndex = $(this).index(); 
   play(preIndex, currentIndex); 
  }, function() { 
   start(); 
  }); 
  $('.slider-pre').unbind('click'); 
  $('.slider-pre').bind('click', function() { 
   pre(); 
  }); 
  $('.slider-next').unbind('click'); 
  $('.slider-next').bind('click', function() { 
   next(); 
  }); 
  /** 
   * 向前翻页 
   */ 
  function pre() { 
   var preIndex = currentIndex; 
   currentIndex = (--currentIndex + length) % length; 
   play(preIndex, currentIndex); 
  } 
  /** 
   * 向后翻页 
   */ 
  function next() { 
   var preIndex = currentIndex; 
   currentIndex = ++currentIndex % length; 
   play(preIndex, currentIndex); 
  } 
  /** 
   * 从preIndex页翻到currentIndex页 
   * preIndex 整数，翻页的起始页 
   * currentIndex 整数，翻到的那页 
   */ 
  function play(preIndex, currentIndex) { 
   $('.slider-panel').eq(preIndex).fadeOut(500) 
    .parent().children().eq(currentIndex).fadeIn(1000); 
   $('.slider-item').removeClass('slider-item-selected'); 
   $('.slider-item').eq(currentIndex).addClass('slider-item-selected'); 
  } 
  /** 
   * 开始轮播 
   */ 
  function start() { 
   if(!hasStarted) { 
    hasStarted = true; 
    interval = setInterval(next, t); 
   } 
  } 
  /** 
   * 停止轮播 
   */ 
  function stop() { 
   clearInterval(interval); 
   hasStarted = false; 
  } 
  //开始轮播 
  start(); 
 }); 
</script> 
</head> 
<body> 
 <div class="slider"> 
  <ul class="slider-main"> 
   <li class="slider-panel"> 
    <a href="http://www.jb51.net" target="_blank"><img src="/static/imghwm/default1.png"  data-src="images/1.jpg"  class="lazy"  alt="Jquery code to achieve image carousel effect (1)_javascript skills" title="Jquery code to achieve image carousel effect (1)_javascript skills"></a> 
   </li> 
   <li class="slider-panel"> 
    <a href="http://www.jb51.net" target="_blank"><img src="/static/imghwm/default1.png"  data-src="images/2.jpg"  class="lazy"  alt="Jquery code to achieve image carousel effect (1)_javascript skills" title="Jquery code to achieve image carousel effect (1)_javascript skills"></a> 
   </li> 
   <li class="slider-panel"> 
    <a href="http://www.jb51.net" target="_blank"><img src="/static/imghwm/default1.png"  data-src="images/3.jpg"  class="lazy"  alt="Jquery code to achieve image carousel effect (1)_javascript skills" title="Jquery code to achieve image carousel effect (1)_javascript skills"></a> 
   </li> 
   <li class="slider-panel"> 
    <a href="http://www.jb51.net" target="_blank"><img src="/static/imghwm/default1.png"  data-src="images/4.jpg"  class="lazy"  alt="Jquery code to achieve image carousel effect (1)_javascript skills" title="Jquery code to achieve image carousel effect (1)_javascript skills"></a> 
   </li> 
  </ul> 
  <div class="slider-extra"> 
   <ul class="slider-nav"> 
    <li class="slider-item">1</li> 
    <li class="slider-item">2</li> 
    <li class="slider-item">3</li> 
    <li class="slider-item">4</li> 
   </ul> 
   <div class="slider-page"> 
    <a class="slider-pre" href="javascript:;;"><</a> 
    <a class="slider-next" href="javascript:;;">></a> 
   </div> 
  </div> 
 </div> 
</body> 
</html>

At this point, a simple jquery carousel effect is completed. Of course, there are still many areas for improvement.

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

Python vs. JavaScript: A Comparative Analysis for DevelopersMay 09, 2025 am 12:22 AM

The main difference between Python and JavaScript is the type system and application scenarios. 1. Python uses dynamic types, suitable for scientific computing and data analysis. 2. JavaScript adopts weak types and is widely used in front-end and full-stack development. The two have their own advantages in asynchronous programming and performance optimization, and should be decided according to project requirements when choosing.

Python vs. JavaScript: Choosing the Right Tool for the JobMay 08, 2025 am 12:10 AM

Whether to choose Python or JavaScript depends on the project type: 1) Choose Python for data science and automation tasks; 2) Choose JavaScript for front-end and full-stack development. Python is favored for its powerful library in data processing and automation, while JavaScript is indispensable for its advantages in web interaction and full-stack development.

Python and JavaScript: Understanding the Strengths of EachMay 06, 2025 am 12:15 AM

Python and JavaScript each have their own advantages, and the choice depends on project needs and personal preferences. 1. Python is easy to learn, with concise syntax, suitable for data science and back-end development, but has a slow execution speed. 2. JavaScript is everywhere in front-end development and has strong asynchronous programming capabilities. Node.js makes it suitable for full-stack development, but the syntax may be complex and error-prone.

JavaScript's Core: Is It Built on C or C ?May 05, 2025 am 12:07 AM

JavaScriptisnotbuiltonCorC ;it'saninterpretedlanguagethatrunsonenginesoftenwritteninC .1)JavaScriptwasdesignedasalightweight,interpretedlanguageforwebbrowsers.2)EnginesevolvedfromsimpleinterpreterstoJITcompilers,typicallyinC ,improvingperformance.

JavaScript Applications: From Front-End to Back-EndMay 04, 2025 am 12:12 AM

JavaScript can be used for front-end and back-end development. The front-end enhances the user experience through DOM operations, and the back-end handles server tasks through Node.js. 1. Front-end example: Change the content of the web page text. 2. Backend example: Create a Node.js server.

Python vs. JavaScript: Which Language Should You Learn?May 03, 2025 am 12:10 AM

Choosing Python or JavaScript should be based on career development, learning curve and ecosystem: 1) Career development: Python is suitable for data science and back-end development, while JavaScript is suitable for front-end and full-stack development. 2) Learning curve: Python syntax is concise and suitable for beginners; JavaScript syntax is flexible. 3) Ecosystem: Python has rich scientific computing libraries, and JavaScript has a powerful front-end framework.

JavaScript Frameworks: Powering Modern Web DevelopmentMay 02, 2025 am 12:04 AM

The power of the JavaScript framework lies in simplifying development, improving user experience and application performance. When choosing a framework, consider: 1. Project size and complexity, 2. Team experience, 3. Ecosystem and community support.

The Relationship Between JavaScript, C , and BrowsersMay 01, 2025 am 12:06 AM

Introduction I know you may find it strange, what exactly does JavaScript, C and browser have to do? They seem to be unrelated, but in fact, they play a very important role in modern web development. Today we will discuss the close connection between these three. Through this article, you will learn how JavaScript runs in the browser, the role of C in the browser engine, and how they work together to drive rendering and interaction of web pages. We all know the relationship between JavaScript and browser. JavaScript is the core language of front-end development. It runs directly in the browser, making web pages vivid and interesting. Have you ever wondered why JavaScr

See all articles

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Grow A Garden - Complete Mutation Guide

3 weeks agoByDDD

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys

3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

How to fix KB5055612 fails to install in Windows 10?

3 weeks agoByDDD

Blue Prince: How To Get To The Basement

1 months agoByDDD

Nordhold: Fusion System, Explained

3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),