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kyco Image Preloader
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kyco Image Preloader – The simplest and most efficient way to preload your images. This plugin lets you preload your images and CSS backgrounds with ease.
1. INCLUDE CSS AND JS FILES
<link rel="stylesheet" href="jquery.kyco.preloader.css"> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <script src="jquery.kyco.preloader.min.js"></script>
2. HTML
<div id="slider"> <ul> <li><img src="slider01.png" /></li> <li style="background:url(slider02.png);"></li> </ul> </div>
3. JAVASCRIPT
$(document).ready(function() $('#slider').kycoPreload( showInContainer: true, useOpacity: true, forceSequentialLoad: true, animateDuration: 1000, fadeOutDuration: 1500, afterEach: function() $(this).fadeIn(1000); // $(this) refers to image that was preloaded. , beforeComplete: function() console.log('images preloaded, fading out the overlay and loader at 1.5s'); , onComplete: function() console.log('cool beans!'); ); );
4. OPTIONS
preloadSelector: true,
If set to true will preload the selector’s background image, note that the image will show as soon as it is loaded and not only once the preloader is done loading.
truePercentage: true,
Note: does not work with cross-domain calls If set to true will get the actual (compressed) file size of all the images instead of just looking at the number of images loaded divided by the total number of images.
disableOverlay: false,
If set to true will not create the blocking overlay.
showInContainer: false,
If set to true will load the preloader inside the selector element instead of across the whole page.
hideBackground: false,
Note: hideBackground is an option for when showInContainer is set to true If set to true will hide the css background-image of the selector element.
hideNonImageElements: false,
If set to true will hide all elements of the selector, not only the images.
progressiveReveal: false,
Note: if hideNonImageElements is set to true then progessiveReveal might not return the expected result because the image element’s parent might be hidden If set to true will show images as soon as they are preloaded.
forceSequentialLoad: false,
Will force images to load in the order they appear in the DOM, this can potentially increase the load time because images won’t start loading in parallel.
silentMode: false,
If set to true will hide the preloader.
debugMode: false,
If set to true will show errors.
useOpacity: false,
If set to true will use opacity property to hide elements instead of display property.
hidePercentage: false,
If set to true will not show the percentage numbers while loading.
loaderText: 'loading images, please wait...',
Set the text of the loading message.
animateDuration: 1000,
Set the duration in milliseconds for each progress animation.
fadeOutDuration: 100,
Set the duration in milliseconds for the preloader fadeout animation.
showImagesBeforeComplete: true,
If set to false will wait for the animation of the preloader fadeout to complete before showing the images.
afterEach: function() ,
Called once after every image load.
beforeComplete: function() ,
Called once after all images have been loaded and before the fadeout animation of the preloader triggers.
onComplete: function()
Called once after all images have been loaded and all preloader animations have completed.
5. STYLING
By default this preloader shows a progress bar. If you wish to use a spinner or something else just edit the css file to hide the progress bar. I have added a stylesheet so that it is easy to detect which classes are used by the preloader.
One easy way of styling the preloader is to set the animateDuration: 10000000 when initiating the preloader in order for the preloader to stay visible.
The preloader is quite flexible, all styles can be deleted except for the position attribute of #kyco_preloader.