我有一个问题,ie9 并不总是加载预加载的图像。有时我不得不刷新页面,然后它就可以工作了。
$jQuery.fn.img_preloader = function(options){
var defaults = {
repeatedCheck: 550,
fadeInSpeed: 1100,
delay: 200,
callback: ''
};
var options = jQuery.extend(defaults, options);
return this.each(function(){
var imageContainer = jQuery(this),
images = imageContainer.find('img').css({opacity:0, visibility:'hidden'}),
imagesToLoad = images.length;
imageContainer.operations = {
preload: function(){
var stopPreloading = true;
images.each(function(i, event){
var image = jQuery(this);
if(event.complete == true){
imageContainer.operations.showImage(image);
}else{
image.bind('error load',{currentImage: image}, imageContainer.operations.showImage);
}
});
return this;
},showImage: function(image){
imagesToLoad --;
if(image.data.currentImage != undefined) { image = image.data.currentImage;}
if (options.delay <= 0) image.css('visibility','visible').animate({opacity:1}, options.fadeInSpeed);
if(imagesToLoad == 0){
if(options.delay > 0){
images.each(function(i, event){
var image = jQuery(this);
setTimeout(function(){
image.css('visibility','visible').animate({opacity:1}, options.fadeInSpeed);
},
options.delay*(i+1));
});
if(options.callback != ''){
setTimeout(options.callback, options.delay*images.length);
}
}else if(options.callback != ''){
(options.callback)();
}
}
}
};
imageContainer.operations.preload();
});
}