loading

My java J2SE application is reading a lot of (png) images from the web and some of them use features such as a transparency color for true-color images (tRNS section) that Sun's/Oracle's PNGImageReader implementation simply ignores. Therefore the common solution for loading via ImageIO.read(...); does not work for me as it relies on this incomplete PNGImageReader implementation. Does anybody know a png reader implementation that can read all forms of PNG images correctly - those with color table or true-color and alpha transparency or transparent color? As it is for a GPL project it should be

I checked other questions, but they all had information how to make a callback when one specific image has loaded: var img = new Image(); img.src = "images/img.png"; if (!img.complete) { img.onload = function() { // code to be executed when the image loads } } Or a simple check to see if all images are loaded with an 'if' statement. Also, $(window).load (or onLoad or whatever) doesn't work. In my case I'm loading two images: var img1 = new Image(); var img2 = new Image(); img1.src = 'images/img1.png'; img2.src = 'images/img2.png'; How can I define a callback similar to the one in the first

main.js import { Loading } from 'element-ui'; let loadingCount = 0; let loading; const startLoading = () => { loading = Loading.service({ lock: true, text: '加载中……', background: 'rgba(0, 0, 0, 0.7)' }); }; const endLoading = () => { loading.close(); }; const showLoading = () => { if (loadingCount === 0) { startLoading(); } loadingCount += 1; }; const hideLoading = () => { if (loadingCount <= 0) { return; } loadingCount -= 1; if (loadingCount === 0) { endLoading(); } }; ..... Vue.prototype.request = function(json, callback, url, callbackData) { .... showLoading(); axios({ method: 'post', url:

I have put together a script which is very much like the flickr photostream feature. Two thumbnails next to each other, and when you click the next or prev links the next (or previous) two images slide in. Cool! Currently when the page loads it loads the two images. The first time nxt / prv is used then the next two images or previous two are loaded via ajax, with the id of the first image being passed in the url and the HTML for the two new images returned and displayed via ajax. simple enough, but it got me to thinking, on a slow connection, or heavy server load then the two images, although

Is there anybody who can tell me how to get grunt tasks load faster. I really want to reduce the loading time, because most tasks require 1 second to load. Especially for 'watch' task. when I am watching for changes, I really want to compile sass much faster. Any ideas? Thanx curist You are really looking for this: jit-grunt . Instead of loading all tasks every time, jit-grunt will only load those that are necessary. Had the same problem as the OP: grunt watch was very slow for compiling .less files and liveReload so here's what I did: install time-grunt to show execution times for each task: