What does your component extend? If you're
extending a Container, you can only use addChild() to content children which implement
the IUIComponent interface. In order to support the LayoutManager, a content
child has to implement things like measure(), etc.
However you should able to add it as a
non-content or "chrome" child by doing rawChildren.addChild(myButton).
Non-content children don't undergo automatic sizing and layout, so you'll have
to set the size and position of myButton yourself.
- Gordon
What do I need to do to add a SimpleButton to my component without
getting the type coercion error above? The code I'm using is taken
directly from the docs and it's pasted below. The parent component is an
HBox.
...
import
flash.display.*;
private
function doInit():void
{
var myButton:SimpleButton = new SimpleButton();
var downSprite:Sprite = new Sprite();
downSprite.graphics.lineStyle(2, 0x202020);
downSprite.graphics.beginFill(0x00FF00);
downSprite.graphics.drawRect(10, 10, 50, 50);
var upSprite:Sprite = new Sprite();
upSprite.graphics.lineStyle(2, 0x202020);
upSprite.graphics.beginFill(0xFFFF00);
upSprite.graphics.drawRect(10, 10, 50, 50);
myButton.upState = upSprite;
myButton.overState = upSprite;
myButton.downState = downSprite;
myButton.useHandCursor = true;
myButton.hitTestState = this;
this.addChild( myButton );
}
...
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