On Fri, Jul 26, 2013, at 03:41 AM, Uli Kusterer wrote:
> On Jul 25, 2013, at 20:26, Andreas Mayer <[email protected]> wrote:
> > Am 25.07.2013 um 19:36 schrieb Uli Kusterer <[email protected]>:
> > 
> >> Have you considered using a display link callback instead of a timer?
> > 
> > Yes. Moving to the display link callback was when I noticed the issue in 
> > the first place.
> 
>  Usually, when drawing from the display link callback is out of sync, it
>  simply means you’re taking too long to draw. Optimize your drawing code.
> 
> > Calling -setNeedsDisplay: in the display link callback is too fast. It 
> > gives smooth animation but leads to timers piling up in the system.

Or do your drawing offscreen and use the display link to blit it to the
screen.

--Kyle Sluder

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