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结构-行为-样式-Jquery实现延迟加载特效(数据缓冲特效)

最近在做一个地产项目的过程中,原来用的延迟加载的插件在IE下会使浏览器突然缩小,这个让客户很不满意,于是就考虑到兼容性的问题决定自己写一个插件。思路:定义一个代码块,手动加载到页面,然后手动删除。   在项目中调用 的时候就可以实例化这个插件,调用他的打开关闭方法,这个插件主要是在Ajax请求数据的时候需要。

 

Js代码:

 

 

define([ ‘jquery‘], function($){    function BlockUI(){        this.boundingBox = null;    }    BlockUI.prototype = $.extend({}, {        renderUI: function(){            this.boundingBox = $(‘<div  class="ng-scope block-ui">‘+                ‘<div  class="block-ui-overlay block-ui-visible"></div>‘+                ‘<div class="block-ui-message-container ">‘+                    ‘<div class="block-ui-message">‘+                        ‘<div class="loading-outer">‘+                            ‘<div class="loading-logo"></div>‘+                           ‘ <div class="loading-circle"></div>‘+                        ‘</div>‘+                    ‘</div>‘+                    ‘<div class="loading-text ">数据正在加载中</div>‘+               ‘ </div>‘+            ‘</div>‘);            this.boundingBox.appendTo(document.body);        },        render: function(container){            this.renderUI();            $(container || document.body).append(this.boundingBox);        },        start: function(){            this.render();        },        stop: function(){            this.boundingBox.off();            this.boundingBox.remove();        }    })    return {        BlockUI: BlockUI    }})

 


显然,你需要把你插入的代码块样式设置一下:

 

.block-ui-message-container{width:200px; height: 60px; left: 50%; top: 50%; margin-top: -30px; margin-left: -30px; position: relative;}.block-ui-message{border: none; background: none;}.loading-circle{height: 60px; width: 60px; position: absolute; left: 0; top: 0; background: none; overflow: hidden; z-index: 1;    -webkit-animation:loadingCircle 1.5s 0s linear both  infinite;    animation:loadingCircle 1.5s 0s linear both  infinite;}@-webkit-keyframes loadingCircle{0% {transform:translate(0,0) rotate(0);}    100% {transform:translate(0,0) rotate(360deg);}}@keyframes loadingCircle{0% {transform:translate(0,0) rotate(0);}100% {transform:translate(0,0) rotate(360deg);}}.loading-logo{height:50px;width:66px;position:absolute;left:-4px;top:10px;background:url("../images/logogo.png?22020")   no-repeat left top;overflow:hidden;z-index:2;-webkit-animation:loadingLogo 1s 0.2s linear both infinite;-webkit-transform-origin:center bottom;animation:loadingLogo 1s 0.2s linear both infinite;transform-origin:center bottom;}@-webkit-keyframes loadingLogo{0%{transform:translate(0,0) scale(1,1);}15%{transform:translate(0,4px) scale(1,1.02);}26%{transform:translate(0,-6px) scale(1,1);}38%{transform:translate(0,0) scale(1,1);}50%{transform:translate(0,0) scale(1,1);}100%{ransform:translate(0,0) scale(1,1);}}
@keyframes loadingLogo
{0%{transform:translate(0,0) scale(1,1);}15%{transform:translate(0,4px) scale(1,1.02);}26%{transform:translate(0,-6px) scale(1,1);}38%{transform:translate(0,0) scale(1,1);}50%{transform:translate(0,0) scale(1,1);}100%{ransform:translate(0,0) scale(1,1);}}
.loading-text
{position:absolute;bottom:-24px;width:120px;text-align:center;left:-30px;font-size:14px;color:#fff;}
.block-ui-overlay.block-ui-visible{opacity:0.6;-ms-filter:"alpha(opacity=60)";}

 

这样就简单地实现了缓冲加载的效果。

 

结构-行为-样式-Jquery实现延迟加载特效(数据缓冲特效)