.ajaxStart() and .ajaxStop() are for all requests together, ajaxStart fires when the first simultaneous request starts, ajaxStop fires then the last of that simultaneous batch finishes. So say you’re making 3 requests all at once, ajaxStart() fires when the first starts, ajaxStop() fires when the last one (they don’t necessarily finish in order) comes back. … Read more
Unfortunately there is no onload support for stylesheets in most modern browsers. There is a solution I found with a little Googling. Cited from: http://thudjs.tumblr.com/post/637855087/stylesheet-onload-or-lack-thereof The basics The most basic implementation of this can be done in a measely 30 lines of — framework independent — JavaScript code: function loadStyleSheet( path, fn, scope ) { … Read more
After digging for a day and a night in the guts of the internets, here is what I came up with: server-sent events – Very cool, currently works only in Opera, but may be part of HTML5 and other browsers may support it sometime. Adds a new element tag with content-type of “application/x-dom-event-stream” which allows … Read more
The oposite term for lazy loading is eager loading. Eager loading is essentially computing the tasks when you ask for it. Lazy Loading is when you only do the computation when it is required.
Full Example class WebViewState extends State<WebViewScreen>{ String title,url; bool isLoading=true; final _key = UniqueKey(); WebViewState(String title,String url){ this.title=title; this.url=url; } @override Widget build(BuildContext context) { return Scaffold( appBar: new AppBar( title: Text(this.title,style: TextStyle(fontWeight: FontWeight.w700)),centerTitle: true ), body: Stack( children: <Widget>[ WebView( key: _key, initialUrl: this.url, javascriptMode: JavascriptMode.unrestricted, onPageFinished: (finish) { setState(() { isLoading = false; … Read more
Typically sites that do this by loading content via ajax and listening to the readystatechanged event to update the DOM with a loading GIF or the content. How are you currently loading your content? The code would be similar to this: function load(url) { // display loading image here… document.getElementById(‘loadingImg’).visible = true; // request your … Read more
This answer assumes that you know basic Linux command. In Linux, there are two types of libraries: static or shared. In order to call functions in a static library you need to statically link the library into your executable, resulting in a static binary. While to call functions in a shared library, you have two … Read more
In file: node_modules/react-scripts/config/webpackDevServer.config.js like this onBeforeSetupMiddleware(devServer) { // Keep `evalSourceMapMiddleware` // middlewares before `redirectServedPath` otherwise will not have any effect // This lets us fetch source contents from webpack for the error overlay devServer.app.use(evalSourceMapMiddleware(devServer)); if (fs.existsSync(paths.proxySetup)) { // This registers user provided middleware for proxy reasons require(paths.proxySetup)(devServer.app); } }, onAfterSetupMiddleware(devServer) { // Redirect to `PUBLIC_URL` … Read more
So, seeing that this answer is getting more and more upvotes, I have decided that I should take it upon myself to improve the quality of the answer. As I look at the original, I see no real ‘answer’ to the question of “what is the problem in my code?”. I am leaving the original … Read more
this is how I solved my issue.. I used a boolean variable “isLoading” to change to false when dismiss() is called. after present() is finished if “isLoading” === false (means dismiss() already called) then it will dismiss immediately. also, I wrote the code in a service so I don’t have to write it again in … Read more