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我有一个图像预加载脚本,它是这个表格 nettuts 的略微修改版本:http: //net.tutsplus.com/tutorials/javascript-ajax/how-to-create-an-awesome-image-preloader/

我遇到的问题是预加载背景 gif 不适用于浮动的图像?

// JavaScript Document
$.fn.preloader = function(options){

var defaults = {
                 delay:20000,
                 preload_parent:"span",
                 check_timer:300,
                 ondone:function(){ },
                 oneachload:function(image){  },
                 fadein:500 
                };

// variables declaration and precaching images and parent container
 var options = $.extend(defaults, options),
 root = $(this) , images = root.find("img").css({"visibility":"hidden",opacity:0}) ,  timer ,  counter = 0, i=0 , checkFlag = [] , delaySum = options.delay ,

 init = function(){

    timer = setInterval(function(){

        if(counter>=checkFlag.length)
        {
        clearInterval(timer);
        options.ondone();
        return;
        }

        for(i=0;i<images.length;i++)
        {
            if(images[i].complete==true)
            {
                if(checkFlag[i]==false)
                {
                    checkFlag[i] = true;
                    options.oneachload(images[i]);
                    counter++;

                    delaySum = delaySum + options.delay;
                }

                $(images[i]).css("visibility","visible").delay(delaySum).animate({opacity:1},options.fadein,
                function(){ $(this).parent().removeClass("preloader");   });




            }
        }

        },options.check_timer) 


     } ;

images.each(function(){

    if($(this).parent(options.preload_parent).length==0)
    $(this).wrap("<span class='preloader' />");
    else
    $(this).parent().addClass("preloader");

    checkFlag[i++] = false;


    }); 
images = $.makeArray(images); 


var icon = jQuery("<img />",{

    id : 'loadingicon' ,
    src : 'css/i/89.gif'

    }).hide().appendTo("body");



timer = setInterval(function(){

    if(icon[0].complete==true)
    {
        clearInterval(timer);
        init();
         icon.remove();
        return;
    }

    },100);

}



$(function () {
$("#righthalf").preloader();
$("#portright").preloader();
$("#timeline").preloader();
$("#type").preloader();
})

有什么想法吗?

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0 回答 0