I remember watching an Apple iOS video on performance for almost exactly the 
same thing IIRC.

It's this video: Maximizing Your Application's Performance on iPhone

From: iPhone Development Essential Videos

You can get it in iTunes.

It's from the Developer on iTunes section.



>> 
>> +1, I was just typing something similar, doing any UI work at all on a 
>> background thread often leads to very odd behavior and I note in your second 
>> mail that you say when you touch another UI element it all redraws nicely, 
>> that is another symptom I've seen before after doing UI work on the 
>> background thread. 
>> 
>> If you are, I would highly recommend blocks to throw the work back to the 
>> main thread again, block programming and dispatch queues are possibly one of 
>> the nicest things Apple has added in the last few years, they just make 
>> stuff like this SO easy.
> 
> Thanks for the pointer, I'll check how the stuff is loaded and see if 
> anything UI-related could be executed in the operation queue we're using to 
> load the data.
> 
> -Laurent.
> -- 
> Laurent Daudelin
> AIM/iChat/Skype:LaurentDaudelin                               
> http://www.nemesys-soft.com/
> Logiciels Nemesys Software                                    
> laur...@nemesys-soft.com
> 
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