actionscript-3

问题 I want to get motherboard ID in flex builder. This is my code. I follow this code to build my own Retrieve manufacturer information from device that AIR app is running on But I got this error TypeError: Error #1009: Cannot access a property or method of a null object reference. give me some solution please. <?xml version="1.0" encoding="utf-8"?> <mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="100%" height="100%" showStatusBar="false" verticalAlign=

问题 I have a layout question for Tab Navigators in Adobe Flex 3. Is it possible to insert a button that invades the grid space of the tabs? I have a tab navigator component and I am dynamically adding sub components to tab navigator and I want squeeze a button inside the tab space. I don't want the button to be another tab. And I don't want to use a TabBar for the tabs. This graphic illustrates the problem. This is the current layout I have This is a mockup (photoshopped) of the layout I want. I

问题 In Flex I'm using the following code to allow sorting in a DataGrid (the data is paged and sorted serverside). private function headerReleaseHandler(event:DataGridEvent):void { var column:DataGridColumn = DataGridColumn(event.currentTarget.columns[event.columnIndex]); if(this.count>0) { if(this.query.SortField == column.dataField) { this.query.SortAscending = !this.query.SortAscending; } else { this.query.SortField = column.dataField; this.query.SortAscending = true; } this.fill(); } event

问题 I have a flash application that I am going to put up on my website shortly. I want to be able to "lock it" to the site to prevent: Hosting the .SWF on another site (after an illicit download), and Preventing the .SWF from opening if included in an iFrame on another site While allowing: A whitelist of sites to be passed through/enabled without me having to define all the variations of a URL (ie: www.abc.com, abc.com, abc.com/game/, games.abc.com, etc.) There are commercial applications that

问题 I've got an XML with a structure like the following; <items> <item>5</item> <item>3006</item> <item>25</item> <item>458</item> <item>15</item> <item>78</item> </items> How do I delete the item with the value 458. Just to clarify this, I don't know the index of that item, so simply calling delete items[index] won't do here. I have to delete by value. Any hints? 回答1: Using e4x filtering and the possibilities of using function inside the filter you can delete the node you want : xml.item.(text()

问题 I am developping a web application, basically its a simple version of Illustrator/Flash. So soccer trainers can make schemes. I made different tools like in Photoshop (line tool, rectangle tool, ..). All of these work. However now i need to develop a tool where the user can draw a double parallel line . I would like to be able to define the distance between those 2 lines in a variable . I need to draw 2 parallel lines between any 2 points on the stage. Like the line tool in Photoshop

问题 I am trying to find out when a link is 'hovered over' in a text area showing html text. I wonder if listening for a cursor change kind of event might be the way. I can't find anything in the docs. Has anyone any idea what event I could listen for here? Thanks 回答1: That's a very interesting problem. Using Cay's suggestion, I thought of a method that would return an Array of Rectangle objects, coresponding to the locations of the text. I'm using the plural because there can be multiple

问题 I'm making a small game in as3. The game contains 10 levels. When i enter 1 level everything is alright. But when i enter the second level (frame) the event listeners from the first frame are still working and a recieve a warning saying ' Cannot access an object of null objct reference'. This is because i delete every object of the first level and th add the objects from stage 2. I've tried using removeEventListeners, but it doesn't work, cause ENTER_FRAME Listeners work one more time after I

问题 The Code below downloads an mp3 to your phone from a server using as3 Air For Android. I want to use these files later in the app so I have the following question: How can I make it so the files save to a particular folder in the android app rather than a box opening for the user to choose a location? import flash.net.FileReference; /// It can be an mp3,jpg, png, etc... just change the url /// and the extension name. nice huh? var yourFileLocation = "http://YourWeb.com/YourSong.mp3"; var

问题 I'm looking for an accurate AS3 grammar (format in not an issue, but I presume ANTLR will feature the most) to use for a practice grammar I'm making. What is the most accurate grammar available for AS3? 回答1: I think this one is pretty accurate if you are looking for an ANTLR grammar: AS3.g This grammar has been originally developed a couple of years ago by Martin Schnable and then extended for the Meta-AS project. There are of course other ActionScript 3 parsers available as well, but they do