Re: [flexcoders] What is the correct way to detect activation of a Canvas in a ViewStack?

[Carlos Rovira]

Have you seen processDescriptors property? Check the docs for that one,
maybe is what you are lookinf for

2007/3/24, Tim Walling [EMAIL PROTECTED]:


  You could try setting up a show event listener to trigger your
initialization code. Something like this:

mx:ViewStack
mx:Canvas show=handleShowEvent()/
/mx:ViewStack


Whenever the ViewStack makes the canvas the visible/active one, the show
event would fire.

or if your Canvas is an mxml component, it could handle the show event
internally:

mx:ViewStack
view:MyCanvas/
/mx:ViewStack

MyCanvas.mxml
mx:Canvas show=handleShowEvent()
mx:Script
private function handleShowEvent(event:FlexEvent):void
{
// call initialize code
}
/mx:Script
/mx:Canvas

Then each of your components in the ViewStack would manage their
respective show events.


Tim


On 23 Mar 2007 17:02:56 -0700, wdsnapper [EMAIL PROTECTED] wrote:

   I am using a ViewStack to contain a set of Canvas'. I switch between
 items in the stack by clicking on buttons. I want to be able to
 detect when a Canvas gains focus and run a method to initialize
 content on that Canvas.

 What is the correct event to monitor to achieve this behavior?

 Thanks in advance.




--
Tim
timwalling.com
 





--
::| Carlos Rovira
::| http://www.carlosrovira.com
::| http://www.madeinflex.com

Re: [flexcoders] What is the correct way to detect activation of a Canvas in a ViewStack?

[Tim Walling]

You could try setting up a show event listener to trigger your
initialization code. Something like this:

mx:ViewStack
   mx:Canvas show=handleShowEvent()/
/mx:ViewStack


Whenever the ViewStack makes the canvas the visible/active one, the show
event would fire.

or if your Canvas is an mxml component, it could handle the show event
internally:

mx:ViewStack
   view:MyCanvas/
/mx:ViewStack

MyCanvas.mxml
mx:Canvas show=handleShowEvent()
   mx:Script
   private function handleShowEvent(event:FlexEvent):void
   {
   // call initialize code
   }
   /mx:Script
/mx:Canvas

Then each of your components in the ViewStack would manage their respective
show events.


Tim


On 23 Mar 2007 17:02:56 -0700, wdsnapper [EMAIL PROTECTED] wrote:


  I am using a ViewStack to contain a set of Canvas'. I switch between
items in the stack by clicking on buttons. I want to be able to
detect when a Canvas gains focus and run a method to initialize
content on that Canvas.

What is the correct event to monitor to achieve this behavior?

Thanks in advance.

 





--
Tim
timwalling.com

[flexcoders] What is the correct way to detect activation of a Canvas in a ViewStack?

[wdsnapper]

I am using a ViewStack to contain a set of Canvas'.  I switch between
items in the stack by clicking on buttons.  I want to be able to
detect when a Canvas gains focus and run a method to initialize
content on that Canvas.

What is the correct event to monitor to achieve this behavior?

Thanks in advance.