As I understand it, not knowing Flash, the functions execute in a single "frame", whatever that is, and the UI does not update until the code finishes running. callLater executes the code in the next frame, after the ui has redrawn.
Tracy ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Pan Troglodytes Sent: Wednesday, May 02, 2007 3:04 PM To: [email protected] Subject: Re: [flexcoders] ProgressBar doesn't get updated immediately Thanks for the reply. I have used callLater before and I guess that makes sense. I'm used to being able to call methods of the gui to force them to repaint on demand. I'm guessing Flex must not have the same kind of functionality. And is it just me, or does [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> need to be booted off this list? I keep getting bounces from that address everytime I send something to flexcoders. On 5/2/07, Tracy Spratt <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > wrote: To do what you want, you will need to break the long running process up into smaller chunks, and use callLater between them to allow the UI to catch up. If it is a loop, use an instance variable to hold the current index, process some smaller number of iterations, have the function end, then callLater to do the next set of iterations, starting at the value in the instance variable. Tracy ________________________________ From: [EMAIL PROTECTED] ups.com [mailto:[EMAIL PROTECTED] ups.com <http://ups.com> ] On Behalf Of Pan Troglodytes Sent: Wednesday, May 02, 2007 1:55 PM To: flexcoders Subject: [flexcoders] ProgressBar doesn't get updated immediately Okay, different problem than my other ProgressBar thread. This time, I have the progress bar working in event mode, cranking through sending off progress events. It works fine, except when it gets to one section of the code. I want to send back the progress while this one very long and time consuming function is happening. So I have several points where I dispatch a progress event to the progress bar. I have added a "progress" event to the bar to write a line to the trace log. It gets these progress events. However, it doesn't update the bar. It seems that the bar redraw is holding off until the other function finishes. This is defeating the whole purpose of having the progress bar. Is there some way I can force a bar redraw? I've tried some of the invalidate/validate methods with no luck. -- Jason -- Jason
