Detect when the image source is changed.

The following example shows how you can detect when the source property has changed on a Flex Image control using the sourceChanged event.It shows a alertbox when the source is changed.
<?xml version=”1.0″ encoding=”utf-8″?>
<mx:Application xmlns:mx=”http://www.adobe.com/2006/mxml“
        layout=”vertical”
        verticalAlign=”middle”
        backgroundColor=”white”>
    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;
            private function init():void {
                img.addEventListener("sourceChanged", image_sourceChanged);
            }
            private function image_sourceChanged(evt:Event):void {
                Alert.show(evt.toString(), evt.type);
            }
        [...]

Read Full Post »

Build your own chat application

Flex supports publish and subscribe messaging through the open source BlazeDS Message Service. The Message Service manages a set of destinations that Flex clients can publish and subscribe to. Flex provides two components, Producer and Consumer, that you use to publish and subscribe to a destination. To subscribe to a destination, you use the subscribe() [...]

Read Full Post »