Native js implementiert Bild-Kaskaden-Karussell-Umschalteffekt_Javascript-Fähigkeiten-js-Tutorial-php.cn

In diesem Artikel wird das Beispiel des js-Fokusbild-Kaskaden-Karussellwechsel-Scrolleffekts vorgestellt und als Referenz für alle freigegeben. Der spezifische Inhalt lautet wie folgt:

Rendering:

Funktionsbeschreibung:

　Benutzerdefinierte Bildgröße
Bilder jedes Mal automatisch scrollen
Jedes Mal, wenn die Animation ausgeführt wird, ändert sich die Position des Bildes und auch die Breite, Höhe und andere Attribute ändern sich entsprechend
Bewegen Sie die Maus über das Bild, um die Detailinformationen des aktuellen Bildes anzuzeigen
Klicken Sie auf die Schaltfläche, um vorwärts und rückwärts zu scrollen

Detaillierter Code:
HTML-Code:

<!DOCTYPE html>
<!-- saved from url=(0062)http://x1.xiuimg.com/style/xiu/woxiu/v1/tpl/topic/xiuxuan.html -->
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title></title>
<style type="text/css">
 *{margin:0px; padding:0px;font-family:"Microsoft YaHei"}
 ol,ul{list-style:none;}
 cite,em,i{font-style:normal} 
 * html .clearfix { height: 1%; }
 .clearfix { display: block; }
 .myclearfix:after { clear:both; visibility:hidden;}
 .myclearfix { display: block; _display:inline-block; overflow:hidden;} 

 #largerImages{position:relative;width:1000px;margin:0 auto;height:520px;overflow:hidden;}
 #largerImages li{box-shadow:1px 1px 12px rgba(200, 200, 200, 1);width:368px;height:368px; position:absolute;top:10px;overflow:hidden;color:#fff;}
 #largerImages li .cover{background-color:#333;opacity:0.5;filter: progid:DXImageTransform.Microsoft.Alpha(opacity=50);height:100%;width:100%;display:block;position:absolute;top:0px;}
 #largerImages img{border:0px;width:100%;height:100%;}
 #largerImages .previous{left:13%;}
 #largerImages .next{left:53%;}
 #largerImages .previous,#largerImages .next{cursor:pointer; position:absolute;z-index:100; top:25%;height:60px;line-height:60px;width:30px;color:#fff;text-align:center;}
 #largerImages .previous span,#largerImages .next span{position:absolute;top:0px;left:0px;height:100%;width:100%;display:block;background-color:#000;opacity:0.4;filter: progid:DXImageTransform.Microsoft.Alpha(opacity=40);}
 #largerImages .previous em,#largerImages .next em{height:100%;width:100%;display:block;position:absolute;top:0px;left:0px;font-size:26px; font-family: "宋体";}
 #largerImages li span,#largerImages li em{position:absolute;left:0px;width:100%;height:30px;line-height:30px; bottom:0px;text-align:center;display:block;color:#fff;}
 #largerImages li span{background-color:#000;opacity:0.5;filter: progid:DXImageTransform.Microsoft.Alpha(opacity=50);font-size:12px;}

</style>
</head>
<body>

<ul id = "largerImages">
 <p class="previous"><span> </span><em><</em></p>
 <p class="next"><span> </span><em>></em></p>
 <li><i class="cover"> </i>
  <a href="#"><img src="http://xiu.xiuimg.com/upload/xiu/9/90/qq-srntbvlhcw_b_56.com_160106133546.jpg"></a>
  <p class="tab_name"><span> </span><em>主播昵称</em></p>
 </li>
 <li><i class="cover"> </i>
  <a href="#"><img src="http://xiu.xiuimg.com/upload/xiu/96/58/dc15170219625_b_56.com_151201150445.jpg"></a>
  <p class="tab_name"><span> </span><em>主播昵称</em></p>
 </li>
 <li><i class="cover"> </i>
  <a href="#"><img src="http://xiu.xiuimg.com/upload/xiu/9/90/qq-srntbvlhcw_b_56.com_160106133546.jpg"></a>
  <p class="tab_name"><span> </span><em>主播昵称</em></p>
 </li>
 <li><i class="cover"> </i>
  <a href="#"><img src="http://xiu.xiuimg.com/upload/xiu/96/58/dc15170219625_b_56.com_151201150445.jpg"></a>
  <p class="tab_name"><span> </span><em>主播昵称</em></p>
 </li>
 <li><i class="cover"> </i>
  <a href="#"><img src="http://xiu.xiuimg.com/upload/xiu/9/90/qq-srntbvlhcw_b_56.com_160106133546.jpg"></a>
  <p class="tab_name"><span> </span><em>主播昵称</em></p>
 </li>
</ul>

<script type="text/javascript" src="../../lib/seajs/sea.js"></script>
<script type="text/javascript" src="../../lib/base/1.0.x/base.js"></script>
<script type="text/javascript">
 seajs.use(['lib/jquery/1.11.x/index.js','_example/rotateBox/index.js'],function($,carousel) {
  carousel.init({
   wapper: $('#largerImages'),

   //所有图片以此来按比例定义宽高
   imgWidth: 450,
   imgHeight: 300,

   spacing: {
    left: 60, //每张图片左边距离相差多少
    top: 30, //每张图片顶部距离相差多少
    width: 60, //每张图片宽度相差多少
    height: 60 //每张图片高度相差多少
   }
  });
 });
</script>
</body>
</html>

Nach dem Login kopieren

JS-Code:

define(function(require, exports, module) {
 'use strict';
 var $ = require('lib/jquery/1.11.x/index.js');

 var carousel = {

  _initData:false, //判断动画是否执行完毕

  init: function(options) {
   var t = this;
   t._wapper = options.wapper;
   t._grids = t._wapper.find('li');
   t._gridsWidth = options.imgWidth;
   t._gridsHeight = options.imgHeight; 
   t._spacing = options.spacing;

   //取居中图片
   t._middle = t._grids.length % 2 == 0 &#63; t._grids.length / 2 : parseInt(t._grids.length / 2);

   //存放各图片参数
   t._arr = {
    left: [],
    top: [],
    zIndex: [],
    width: [],
    height: []
   }

   if ( !t._initData ) {
    var interval;
    interval = setInterval(function(){
     $('.previous').click();
    },10000);
   }

   t._largerImages();
   t._reposition();
   t._mouseEnter(t._grids) //鼠标移动上去显示主播昵称
  },
  //初始化定位：
  _largerImages: function() {
   var t = this;

   var front = t._middle;
   var avtive = t._middle;
   var last = t._grids.length;

   t._grids.each( function(i, img) {
    
    if (i == t._middle) {

     t._grids.eq(i).css({
      zIndex: 99,
      top: 0,
      left: t._spacing.left * i,
      height: t._gridsHeight,
      width: t._gridsWidth
     }); 

    } else if ( i < t._middle ) {

     t._grids.eq(i).css({
      zIndex: i,
      top: t._spacing.top * front,
      left: t._spacing.left * i,
      height: t._gridsHeight - t._spacing.height * front,
      width: t._gridsWidth - t._spacing.width * front
     });
     
     front--;

    } else {

     last --;

     t._grids.eq(last).css({
      zIndex: i,
      top: t._spacing.top * avtive,

      left: t._spacing.left * last + t._spacing.width * avtive,
      height: t._gridsHeight - t._spacing.height * avtive,
      width: t._gridsWidth - t._spacing.width * avtive
     });

     avtive --;
    };
   });
  },
  //翻页动画
  _reposition: function() {
   var t = this;

   //把各属性值传到数组里面
   t._grids.each( function(i,img) {
    t._arr.left.push(t._grids.eq(i).position().left);
    t._arr.top.push(t._grids.eq(i).position().top);
    t._arr.width.push(t._grids.eq(i).width());
    t._arr.height.push(t._grids.eq(i).height());
    t._arr.zIndex.push(t._grids.eq(i).css('z-index'));
   });

   //向前翻页
   $('.previous').bind('click',function() {
    if ( !t._initData && t._arr.left.length != 0) {

     t._initData = true;

     //重新获取选择器
     var grids = t._wapper.find('li'); 
     
     for (var i = 1; i < grids.length ; i ++) {

      grids.eq(i).animate({
       zIndex: t._arr.zIndex[i - 1],
       left: t._arr.left[i - 1],
       top: t._arr.top[i - 1], 
       width: t._arr.width[i - 1], 
       height: t._arr.height[i - 1],
      },200,
      function() {
       t._initData = false;
       grids.find('i').addClass('cover');
       grids.eq(t._middle + 1).find('i').removeClass('cover');
      });
     };

     grids.eq(0).animate({
      left: t._arr.left[ grids.length - 1], 
      top: t._arr.top[ grids.length - 1], 
      width: t._arr.width[ grids.length - 1], 
      height: t._arr.height[ grids.length - 1],
      zIndex: t._arr.zIndex[ grids.length - 1]
     },200,
     function(){
      $(this).appendTo(t._wapper);
     });

    }
   });
   //向后翻页
   $('.next').bind('click',function() {
    if ( !t._initData && t._arr.left.length != 0) {

     t._initData = true;

     //重新获取选择器
     var grids = t._wapper.find('li'); 
     
     for (var i = 0; i < grids.length - 1; i ++) {
      grids.eq(i).animate({
       left: t._arr.left[i + 1],
        top: t._arr.top[i + 1], 
        width: t._arr.width[i + 1], 
        height: t._arr.height[i + 1],
        zIndex: t._arr.zIndex[i + 1]
        },200,function() {
        t._initData = false;
       });
     };
     grids.eq(grids.length - 1).animate({
      left: t._arr.left[0], 
      top: t._arr.top[0], 
      width: t._arr.width[0], 
      height: t._arr.height[0],
      zIndex: t._arr.zIndex[0]
     },200,
     function(){
      $(this).prependTo(t._wapper);
      grids.find('i').addClass('cover');
      grids.eq(t._middle - 1).find('i').removeClass('cover');
     });

    }
   });
  },
  //鼠标进入图片效果
  _mouseEnter: function(grids) {
   grids.each(function(i){
    $(this).mouseenter(function() {
     $(this).find('.tab_name').animate({
      bottom:0,opacity: 'show'
     },200);
    });
    $(this).mouseleave(function() {
     $(this).find('.tab_name').animate({
      bottom:-50,opacity: 'hide'
     },200);
    });
   });
  },
 };

 return carousel;
});

Nach dem Login kopieren

Das Obige ist der gesamte Inhalt dieses Artikels. Ich hoffe, er wird für das Studium aller hilfreich sein.