Home > Developer > JavaScript
Implement image carousel effect (focus chart) based on JQuery, jquery focus
I wrote a horizontal carousel focus chart in the form of jq. You can click the DOT or the Left or Right button to switch between them. It belongs to the fixed width type. It is not difficult to change the width of bannerCon in css to the percentage, and then change the width of ul and li in js to the width of the parent container, $ (window) is required ). resize.
Compatible with IE6 + and later browsers, with two parameters: carousel speed and switching interval.
As follows:
The Html code is as follows:
<Html>The Css style is as follows:
@ Charset "UTF-8";/* simple reset */body, p, ul, ol, li {margin: 0; padding: 0;} ul, ol {list-style: none;} img {border: none;} a, button {outline: none ;}. clearfix: after {visibility: hidden; display: block; font-size: 0; content: ""; clear: both; height: 0 ;}/ * specific style */. banner {position: relative; height: 400px; overflow: hidden ;}. banner. bannerCon {position: absolute; top: 0; left: 50%; width: 800px; height: 400px; margin-left:-400px; overflow: hidden ;}. bannerCon. imgList {position: absolute; top: 0; left: 0; width: 99999px; height: 400px ;}. bannerCon. imgList li {float: left; width: 800px; height: 400px ;}. bannerCon. imgList li a {position: relative; display: block; height: 100% ;}. bannerCon. imgList li img {width: 800px; height: 400px ;}. bannerCon. pre-nex {display: none; position: absolute; top: 50%; width: 40px; height: 60px; margin-top:-40px; font: bold 40px/60px Simsun; color: # ccc; text-align: center; border: none; background: rgba (0, 0, 0 ,. 30); filter: progid: DXImageTransform. microsoft. gradient (startColorStr = #4c000000, endColorStr = #4c000000); cursor: pointer; z-index: 3 ;}. bannerCon. the pre-nex.show {display: inline-block ;}. bannerCon. prev {left: 13% ;}. bannerCon. next {right: 13% ;}. bannerCon. btnList {position: absolute; left: 0; bottom: 20px; width: 100%; height: 12px; text-align: center; z-index: 2; _ overflow: hidden ;}. bannerCon. btnList li {display: inline ;}. bannerCon. btnList li span {display: inline-block; width: 12px; height: 12px; margin: 0 5px; border-radius: 6px; background-color: # 14829e; cursor: pointer ;}. bannerCon. btnList li. cur span {background-color: # f30 ;}The Js Code is as follows:
// The js statement loaded after the text is read starts ============================== ================================== function Scroll (obj, speed, interval) {// parent container, carousel speed, switching interval $ (". "+ obj ). each (function () {var $ box = $ (this), $ imgUl = $ box. children (". imgList "), $ imgLi = $ imgUl. children ("li"), $ btnUl = $ box. children (". btnList "), $ btnLi = $ btnUl. children ("li"), $ btnPreNex = $ box. children (". pre-nex "), $ btnPre = $ box. children (". prev "), $ btnNex = $ Box. children (". next "), n = $ imgLi. length, width = $ imgLi. width (), left = parsefloat(javasimgul.css ("left"), k = 0, Player; extends imgul.css ("width", n * width); function scroll () {// carousel event $ imgUl. stop (). animate ({left:-width}, speed, function () {k + = 1; extends imgul.css ("left", 0); $ imgUl. children ("li: first "). appendTo ($ (this); $ btnLi. removeClass ('cur'); if (k> = n) {k = 0;} $ btnUl. children ("li "). eq (k ). addClass ('cur') ;}) ;}$ BtnLi. click (function () {// small dot click Event var index = $ btnLi. index (this); $ (this ). addClass ('cur '). siblings ("li "). removeClass ('cur'); if (index> = k) {var dif = index-k; left =-dif * width; $ imgUl. stop (). animate ({left: left}, speed, function () {limit imgul.css ("left", 0); $ imgUl. children ("li: lt (" + dif + ")"). appendTo ($ imgUl) ;}) ;}else {var j = n-(k-index); extends imgul.css ("left", (index-k) * width ); $ imgUl. children ("Li: lt (" + j + ")"). appendTo ($ imgUl); $ imgUl. stop (). animate ({left: 0}, speed) ;}k = index ;}); $ btnPreNex. click (function () {// left/right button and click event var index = $ btnLi. index (this); if ($ (this ). hasClass ('Next') {if (! $ ImgUl. is (": animated") {k + = 1; $ imgUl. animate ({left:-width}, speed, function () {limit imgul.css ("left", 0); $ imgUl. children ("li: first "). appendTo ($ (this); if (k> = n) {k = 0;} $ btnUl. children ("li "). removeClass ('cur '). eq (k ). addClass ('cur') ;}}} else {if (! $ ImgUl. is (": animated") {k + =-1; using imgul.css ("left",-width); $ imgUl. children ("li: last "). prependTo ($ imgUl); $ imgUl. stop (). animate ({left: 0}, speed); if (k <0) {k = n-1;} $ btnUl. children ("li "). removeClass ('cur '). eq (k ). addClass ('cur') ;}}); $ box. hover (// move the mouse in/out event function () {clearInterval (Player); $ btnPreNex. addClass ('show') ;}, function () {Player = setInterval (function () {scroll ()}, interval); $ btnPreNex. removeClass ('show') ;}); Player = setInterval (function () {scroll ()}, interval) ;}$ (function () {// read the carousel event Scroll ("bannerCon );});Note that I used 1.9.1 to load the jq library. In fact, there are no problems with 1.7 +.
The above is all the content of this article, hoping to help you.
Articles you may be interested in:
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
