Trouble managing events in Flex/actionscript
- by Zaka
Hello all,
I'm doing some newbie tests, so I decided to capture the keyboard events to move a rectangle. But I don't get the desired result. Unless I click on the TextArea box, I'm
not able to capture the event key code. After that, all goes pretty well.
I'm using Eclipse 3.3 + Flex 3.0 on Linux.
Here's my code:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute"
enterFrame="enterFrame(event)"
keyDown="onKeyDown(event)">
<mx:TextArea id="myText" x="200" y="200" width="100" height="100" />
<mx:Canvas id="myCanvas" x="0" y="0" width="100" height="100" />
<mx:Script>
<![CDATA[
public var clearColor : uint = 0xFF456798;
public var myPoint : Point = new Point(0,0);
public function enterFrame(event:Event):void
{
myCanvas.graphics.clear();
myCanvas.graphics.beginFill(0xFF344ff0);
myCanvas.graphics.drawRect(myPoint.x,myPoint.y,40,40);
myCanvas.graphics.endFill();
}
public function onKeyDown(event:KeyboardEvent):void
{
myText.text = "Keycode is: " + event.keyCode + "\n";
switch(event.keyCode)
{
case 37: //Left
myPoint.x -= 1;
break;
case 38: //Up
myPoint.y -= 1;
break;
case 39: //Right
myPoint.x += 1;
break;
case 40: //Down
myPoint.y += 1;
break;
}
}
]]>
</mx:Script>
</mx:Application>
