Re: Updating a progress bar from a code loop
Re: Updating a progress bar from a code loop
- Subject: Re: Updating a progress bar from a code loop
- From: j o a r <email@hidden>
- Date: Mon, 9 Jun 2008 23:33:42 -0700
On Jun 9, 2008, at 11:24 PM, Graham Cox wrote:
I have a lengthy routine that I'd like to show a progress bar for.
The routine runs in a while() loop, and calls a delegate which
implements the progress update. My progress window opens OK but
nothing gets updated, though I know that it's getting the correct
values set.
I'm assuming the problem is that because I'm not running the event
loop at this point, updates aren't getting processed. Makes sense I
think.
How do I give some time to the event loop while I'm running my own
loop? I tried:
[[NSRunLoop currentRunLoop] runMode:NSRunLoopCommonModes beforeDate:
[NSDate distantFuture]];
but it didn't fix the problem. Note that I've tried running my
window both modally and non-modally but it's the same either way.
What should I be doing?
See if you can make your lengthy routine thread safe, and if so, run
it on a background thread.
You should put a lot of effort into always leaving the main thread
open for user events.
j o a r
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