preloader

问题 I am trying to get my head around and using the selected image in a website. Let's say I have a simple website that lets the user select an image from their system using: <input type="file" id="userImage"> Then in the JavaScript I can do this to get the file: var userImage = document.getElementById('#userImage').files[0]; Questions: 1) Can I now use userImage? Such as drawing it on a canvas, or do I need to uploaded it to the websites server first? 2) If I use the image, does the website have

问题 In Java 8 I can launch a JavaFX application with a preloader using the following method: LauncherImpl.launchApplication(WindowMain.class, WindowMainPreloader.class, new String[]{...}); I prefer to start it from code, like above, instead of using a deploy configuration, because I don't want the graphical interface to start every time I start the application, but only after some code that has computed that the application should run in GUI mode. I was using the class "com.sun.javafx.application

问题 I trying to create a preloader for a game in Flash CS6. I've already slowed down the download speed to 1,2 kb but the ProgressEvent.PROGRESS is never fired. This is what I have: import flash.events.Event; import flash.events.ProgressEvent; stop(); loaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressMade); function onProgressMade( progressEvent:ProgressEvent ):void { trace( loaderInfo.bytesLoaded, loaderInfo.bytesTotal ); } The stage stays blank but onProgressMade gets never called.

问题 So I've got a pretty nice application going using ui-tabs.. problem is, I cannot for the life of me figure out a way to pre-load images in my ajax content before the tab panel is shown. The only way I can think of is to create my own ajax functionality for the loading of tab-panel content, and adding something like this to the ajax call: success: function(response){ $(response).find('img').preload({ onFinish: function(){ currentTabPanel.show(); } }); } But I'm thinking there's GOT to be a

问题 I have a JavaFX application that uses a preloader. What I'd like to do is package it up as a native bundle (Mac app or Windows exe file that contains a copy of the Java JDK) so users who don't have the right version of Java on their computers can still run the app. I've followed Oracles instructions for creating native bundles and for adding preloaders. What I get is exactly what you'd expect—a native bundle that runs my program. The problem is that the bundle completely ignores my preloader.

问题 I'm writing a preloader: package { import flash.display.DisplayObject; import flash.display.Sprite; import flash.text.TextField; import flash.display.LoaderInfo; import flash.events.MouseEvent; import flash.events.Event; import flash.events.ProgressEvent; import flash.system.System; public class Preloader extends Sprite { private var t:TextField = new TextField(); private var ver:String = "1000"; public function Preloader() { t.y = 570; addChild( t ); t.text = ver; addEventListener( Event

问题 I'm writing a preloader: package { import flash.display.DisplayObject; import flash.display.Sprite; import flash.text.TextField; import flash.display.LoaderInfo; import flash.events.MouseEvent; import flash.events.Event; import flash.events.ProgressEvent; import flash.system.System; public class Preloader extends Sprite { private var t:TextField = new TextField(); private var ver:String = "1000"; public function Preloader() { t.y = 570; addChild( t ); t.text = ver; addEventListener( Event

问题 I created a Preloader (based on the following tutorial) that should display a splash screen for the main application. 9.3.4 Using a Preloader to Display the Application Initialization Progress http://docs.oracle.com/javafx/2/deployment/preloaders.htm public class SplashScreenLoader extends Preloader { private Stage splashScreen; @Override public void start(Stage stage) throws Exception { splashScreen = stage; splashScreen.setScene(createScene()); splashScreen.show(); } public Scene

问题 I'm working on an image slideshow that allows users to cycle through a set of images in semi-fullscreen. Here's a development version of it: [link removed, was only temp link] There are several ways to progress to the next image: by clicking the large image, by picking a specific thumb, by using the arrow icons or even your keyboard arrows. All of these basically call a js function loadImage with the correct params: function loadImage(id,url) { // general image loading routine // enable

问题 Is it possible to have sIFR "preload" or load before the rest of the page content? At present it is the last thing to load (due to the text position) and as it's quite an obvious part of the page I get a huge mash-up of text replacement all in a quick flurry which is not very appealing. It looks like the site is having an epileptic fit. Once loaded, all is fine though :) Any work-arounds to the load-fitting? Cheers Hugh 回答1: There are a two separate issues here: Replacing the elements as soon