加载所有图像后执行js [英] Execute js after all image loaded
问题描述
(我搜索了,但找不到完全/简单的解决方案)
我想在所有图像完全加载后执行JS。我的目标是,当所有图像完全加载完毕后,将removeClass my-loader
和addClass 可见
改为主滑块
div。
(I searched, but not find exactly/easy solution)
I'm trying to execute JS after all images completely loaded. My goal is, when all images finish load completely, then removeClass my-loader
and addClass visible
to main-slider
div.
HTML:
<div class='main-slider my-loader'>
<img src="/nice-girl.jpg">
<img src="/nice-car.jpg">
<img src="/nice-boy.jpg">
</div>
当所有图片完全加载时执行低于js
$(".main-slider").removeClass("my-loader").addClass("visible");
尝试:
但不行,问题是在完成图像加载之前执行:
Tried :
But not work, problem is it execute before complete image load:
var imagesPre = new Array;
var success = new Array;
$('.big-slides img').each(function(){
imagesPre.push(this.src);
});
for (i = 0; i < imagesPre.length; i++) {
(function(path, success) {
image = new Image();
image.onload = function() {
success.resolve();
};
image.src = path;
})(imagesPre[i], success[i] = $.Deferred());
}
$.when.apply($, success).done(function() {
$(".main-slider").removeClass("my-loader").addClass("visible");
});
简单解决方案的任何想法?
Any ideia for simple solution?
推荐答案
您可以使用 load()
来检查图像是否已加载!
You can use load()
to check if the images are loaded!
$('.imgTag').each(function(){
$(this).load(function(){
$(".main-slider").removeClass("my-loader").addClass("visible");
})
})
有时,当浏览器缓存图像时,这可能无效。请查看 与图像一起使用时加载事件的注意事项
This may not work sometimes when the images are cached by the browser. Please check Caveats of the load event when used with images
var img = $('img')
var count = 0
img.each(function(){
$(this).load(function(){
count = count + 1
if(count === img.length) {
$('.main-slider').removeClass('my-loader').addClass('visible')
}
})
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class='main-slider my-loader'>
<img src="https://unsplash.it/200/300/?random">
<img src="https://unsplash.it/200/300/?random">
<img src="https://unsplash.it/200/300/?random">
</div>
但是,这个答案是一个工作案例。
But, this answer is a working case.
这篇关于加载所有图像后执行js的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!