jQuery仅在刷新页面时工作

jQuery仅在刷新页面时工作,jquery,Jquery,当我将连接到此jQuery代码(如下)的网页放入时,图像滑块将不工作,除非我先刷新页面,然后单击图像滑块上的箭头,它将浏览图像。有没有人对我需要在这段代码中修改什么以使其工作有任何见解??谢谢 $(window).load(function(){ // We are listening to the window.load event, so we can be sure // that the images in the slideshow are loaded properly // T

当我将连接到此jQuery代码(如下)的网页放入时,图像滑块将不工作,除非我先刷新页面,然后单击图像滑块上的箭头,它将浏览图像。有没有人对我需要在这段代码中修改什么以使其工作有任何见解??谢谢

$(window).load(function(){

// We are listening to the window.load event, so we can be sure
// that the images in the slideshow are loaded properly

// Testing whether the current browser supports the canvas element:
var supportCanvas = 'getContext' in document.createElement('canvas');

// The canvas manipulations of the images are CPU intensive,
// this is why we are using setTimeout to make them asynchronous
// and improve the responsiveness of the page.

var slides = $('#slideshow li'),
    current = 0,
    slideshow = {width:0,height:0};

setTimeout(function(){

    window.console && window.console.time && console.time('Generated In');

    if(supportCanvas){
        $('#slideshow img').each(function(){

            if(!slideshow.width){
                // Taking the dimensions of the first image:
                slideshow.width = this.width;
                slideshow.height = this.height;
            }

            // Rendering the modified versions of the images:
            createCanvasOverlay(this);
        });
    }

    window.console && window.console.timeEnd && console.timeEnd('Generated In');

    $('#slideshow .arrow').click(function(){
        var li          = slides.eq(current),
            canvas      = li.find('canvas'),
            nextIndex   = 0;

        // Depending on whether this is the next or previous
        // arrow, calculate the index of the next slide accordingly.

        if($(this).hasClass('next')){
            nextIndex = current >= slides.length-1 ? 0 : current+1;
        }
        else {
            nextIndex = current <= 0 ? slides.length-1 : current-1;
        }

        var next = slides.eq(nextIndex);

        if(supportCanvas){

            // This browser supports canvas, fade it into view:

            canvas.fadeIn(function(){

                // Show the next slide below the current one:
                next.show();
                current = nextIndex;

                // Fade the current slide out of view:
                li.fadeOut(function(){
                    li.removeClass('slideActive');
                    canvas.hide();
                    next.addClass('slideActive');
                });
            });
        }
        else {

            // This browser does not support canvas.
            // Use the plain version of the slideshow.
            current=nextIndex;
            next.addClass('slideActive').show();
            li.removeClass('slideActive').hide();
        }
    });

},100);

// This function takes an image and renders
// a version of it similar to the Overlay blending
// mode in Photoshop. 
// **NOTE: REMOVED COLOR CHANGES

function createCanvasOverlay(image){

    var canvas          = document.createElement('canvas'),
        canvasContext   = canvas.getContext("2d");

    // Make it the same size as the image
    canvas.width = slideshow.width;
    canvas.height = slideshow.height;

    // Drawing the default version of the image on the canvas:
    canvasContext.drawImage(image,0,0);


    // Taking the image data and storing it in the imageData array:
    var imageData   = canvasContext.getImageData(0,0,canvas.width,canvas.height),
        data        = imageData.data;

    // Putting the modified imageData back to the canvas.
    canvasContext.putImageData(imageData,0,0);

    // Inserting the canvas in the DOM, before the image:
    image.parentNode.insertBefore(canvas,image);
}

//end of window load    
});
$(窗口).load(函数(){
//我们正在侦听window.load事件,因此可以确定
//幻灯片中的图像是否已正确加载
//测试当前浏览器是否支持画布元素:
var supportCanvas='getContext'在document.createElement('canvas')中;
//图像的画布操作是CPU密集型的,
//这就是为什么我们使用setTimeout使它们异步
//并提高页面的响应能力。
var slides=$(“#slideshow li”),
电流=0,
幻灯片放映={宽度:0,高度:0};
setTimeout(函数(){
window.console&&window.console.time&&console.time('Generated In');
如果(支持画布){
$('#幻灯片显示img')。每个(函数(){
如果(!slideshow.width){
//获取第一幅图像的尺寸:
slideshow.width=this.width;
slideshow.height=this.height;
}
//渲染图像的修改版本:
createCanvasOverlay(这个);
});
}
window.console&&window.console.timeEnd&&console.timeEnd('Generated In');
$('#slideshow.arrow')。单击(函数(){
var li=滑动。等式(电流),
canvas=li.find('canvas'),
nextIndex=0;
//取决于这是下一个还是上一个
//箭头,相应地计算下一张幻灯片的索引。
if($(this).hasClass('next')){
nextIndex=当前>=幻灯片。长度-1?0:当前+1;
}
否则{

nextIndex=current我过去在
$(window).load()
方面的结果不好。我的经验是,加载事件通常根本不会触发,例如,如果浏览器认为页面已缓存。这可以解释为什么硬刷新似乎可以解决您的问题


我的建议是不要依赖它,而是使用
$(document.ready()

为什么不使用
$(document.ready()
?@Jan你的意思是
$(document.ready()
?)或者是
$(document.ready()
,或者它的较短版本
$()
$)。ready(){
或者
($){
做了同样的事情吗?我尝试改用$document.ready(),现在即使刷新页面也无法使滑块工作。这可能是调用图像加载的方式吗?@Shub我也遇到了同样的问题,并将$(window.load()更改为$(document.ready())对我也不起作用,刷新时根本没有加载滑块…你最终解决了这个问题吗?@starkey01这可能会解决你的问题: