Categories
Actionscript

Recognize DisplayObject Transform Matrix Change Event in Flash AS3

If another object changes the transformation matrix of a DisplayObject, the DisplayObject has no means to recognize that it has been transformed, as it is transformed automatically. E.g., there is no kind of TRANSFORMATION_MATRIX_CHANGED event that is dispatched on the DisplayObject. If your DisplayObject still should react on a change of its transformation matrix, a workaround is necessary, which is described in the following approach. I show a short solution at first and will explain the actual problem and solution approach in more detail afterwards.

Categories
Adobe Air

Remove ‘View Source’ from Adobe Air Debug Context Menu in Flash Builder

Recently I wondered how I can get rid of that “View Source” entry in the context menu of Adobe Air as I wanted to add my own context menu there.

It turned out that I had to remove all the source folder entries in the project’s run configuration (see in the image above).

Categories
Actionscript Adobe Air Flash flex

Flex Does Not Find Resource Bundles

LocalizationProblem

Recently I had the problem that my Flex code, which used the ResourceManager, would not find the resource bundle, which contained all resources for my application. However, the application compiled but it would always crash whenever the first time a resource should be loaded. I checked my compiler arguments a 1000 times but everything was correct and did work well in another Flex application. The problem was that my resource bundle was not present in the ResourceManager, it just did not load it.

Categories
Actionscript Adobe Air Flash flex Twitter

Twitter AS3 library TwitterScript Flex Example

I have been looking around for Actionscript 3 libraries for the retrieval of data via the very nice Twitter API. Basically, TwitterScript seems to be a good choice for a Twitter Flash library as it wraps Twitter query URLs and packs the XML results automatically in arrays.

Twitter Banner

However, as so often with Actionscript libraries there is NO documentation pertaining TwitterScript available on its Google code page, there is no example included in the source code and the source code is not commented. What could be so difficult about providing a little piece of code like this:

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<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" 
      addedToStage="init()">
  <mx:Script>
    <![CDATA[
      import twitter.api.data.TwitterStatus;
      import twitter.api.events.TwitterEvent;
      import twitter.api.TwitterSearch;
        import twitter.api.Twitter;
 
      private static const TWITTER_USER:String = "stephenfry";
 
      private var _twitter:Twitter;
      private var _twitterSearch:TwitterSearch;
 
      private function init():void{
        _twitter = new Twitter();
        _twitterSearch = new TwitterSearch();
 
        _twitter.loadUserTimeline(TWITTER_USER);
        _twitter.addEventListener(TwitterEvent.ON_USER_TIMELINE_RESULT, 
            userTimelineResult);
 
        _twitterSearch.addKeyword("ipad");
        _twitter.addEventListener(TwitterEvent.ON_SEARCH, onSearchResult, 
            false,0,true);
        _twitter.search(_twitterSearch);
      }
 
      private function userTimelineResult(e:TwitterEvent):void {
        var twitterStatus:TwitterStatus;
        for (var i in e.data) {
          twitterStatus = e.data[i]
          trace("user tweets",twitterStatus.text)
        }
      }
 
      private function onSearchResult(event : TwitterEvent) : void{
        var twitterStatus : TwitterStatus;
        for (var i : int = 0; i < event.data.length; i++){
          twitterStatus = event.data[i];
          trace("search result:",twitterStatus.text);
        }
      }
    ]]>
  </mx:Script>
</mx:Application>

This example originates to Trevor Boyle’s blog. Improved by Kimi.

Categories
Actionscript Adobe Air Flash flex Hochschule RheinMain Multi-Touch Tangible Interfaces

Touchlib’s TUIO Actionscript 3 Classes Enhanced With Fiducial Support (Source Code)

Important: I discontinued the work for fiducialtuioas3. If you are starting a new project, consider using our new AS3 Tuio library Tuio AS3. As you most certainly came here because you want to use fiducials in AS3 find the according Tuio AS3 fiducial howto here.

In his Bachelor thesis Frederic Frieß enhanced the original Touchlib TUIO AS3 classes with support for fiducials (or to speak in TUIO terms with support for /tuio/2dobj messages).

fiducialtuioas3 Google code

Thus, the Touchlib’s TUIO classes can simply be replaced with Frederic’s classes and everything should still work as before. However, there is one slight change in the package structure: the TUIO classes are now lying inside the package tuio and not in the package flash.events.

I have made Frederic’s Tuio Fiducial AS3 classes available on Google code in a project called fiducialtuioas3.

If you want to use reacTIVision fiducials in Flash, Flex or Adobe Air you are heartily invited to use these classes in your private and professional project.

Examples of what has been done so far with those classes:
Tangible Vispol
Pf Design Media Installation

If you have a nice project with fiducialtuioas3 it would be great if you shared a link with us via mail or in the comments.

Categories
Actionscript Flash flex

How to get smooth image scaling in Flex

Great article from Ben Longoria about how to get smooth image scaling in Flex.

Categories
Actionscript Adobe Air Flash flex

Draw Image Reflection in Adobe Flex

Recently, I needed an image reflection effect in Flex. This would not be complicated to achieve for a Loader image object in Flash Actionscript 3 but the more for Flex as everything needs to be a bit more complicated in Flex when it comes to customizing.

Flex Image Reflection

Categories
Actionscript Adobe Air Flash flex

How to Generate Thumbnails with Adobe Air

This article from Kevin Hoyt’s blog has been a hell of a lot useful for me. It describes how thumbnails can be generated on the fly of high-res images with Adobe Air and how they can be saved to HD.

As some code is missing in Kevin’s tutorial, here is the code of two Adobe Air thumbnail generation applications.

Categories
Actionscript Adobe Air fh wiesbaden flare Flash flex Hochschule RheinMain Multi-Touch Tangible Interfaces Visualization

Vispol Tangible and Multi-Touch Interface Video

This video presents the results of the Bachelor thesis of Frederic Friess at the Vislab of the Wiesbaden University of Applied Sciences. I have been Frederic’s mentor under the guidance of Prof. Dr. Doerner for this work.

Categories
Actionscript Adobe Air flare Flash flex Hochschule RheinMain Visualization

Vispol Multi-Touch Video

This video demonstrates the fundamental multi-touch functions of Vispol. The demonstrated functions contain the creation and modification of persons and objects and connections. Additionally, examples for the application of the layout functions in Vispol are being introduced.

Click here for further information about Vispol.

You can try out the mouse version of Vispol here.