Flex: How to resize DisplayObject to fit panel in Flex application
- by ohm
I am trying to attach some of my actionscript class, inherited from Sprite, to my Flex application by attaching it to a UIComponent, then add UIComponent to a panel. However, the size of my Sprite class appears to be larger than the panel. So, I try to resize it using DisplayObject.scale property, but I need to know the size of my container. Since I try to make my code reusable, I figure that I should let my Sprite class handle the resize by getting it via its parent property (let's say, I can resize it by set
this.scaleX = this.parent.Width/this.width or something like this)
However, my Sprite class's parent, which is the UIComponent, has width/height of 0.
So, my question is:
1) Is there any better way to resize DisplayObject class to fit its container when attached to Flex object?
2) If you know, why my UIComponent's size remain 0 and my DisplayObject still appears at its full size?
Here's my code, using Flash Builder 4:
private var loader:Loader = new Loader();
private function testLoader():void {
var urlRequest:URLRequest = new URLRequest("http://localhost/welcome.png");
loader.load(urlRequest);
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,onLoaderLoadComplete);
}
private function onLoaderLoadComplete(e:Event):void {
loader.contentLoaderInfo.removeEventListener(Event.COMPLETE,onLoaderLoadComplete);
var ui : UIComponent = new UIComponent();
ui.addChild(loader);
panelTest.addElement(ui);
trace("ui.width = " + ui.width);
trace("ui.height = " + ui.height);
trace("loader.width = " + loader.width);
trace("loader.height = " + loader.height);
trace("panelTest.width = " + panelTest.width);
trace("panelTest.height = " + panelTest.height);
}
And this is the result when run:
ui.width = 0
ui.height = 0
loader.width = 571
loader.height = 411
panelTest.width = 480
panelTest.height = 320
