Re: Smooth scrolling in NSScrollView
Re: Smooth scrolling in NSScrollView
- Subject: Re: Smooth scrolling in NSScrollView
- From: Uli Kusterer <email@hidden>
- Date: Fri, 15 Oct 2010 12:13:11 +0200
On Oct 15, 2010, at 3:12 AM, Gideon King wrote:
> Hi, I am trying to get a large view to scroll smoothly in an NSScrollView using an animation on the scrollpoint. The first time I do this, the scrolling is quite jerky, especially when I get to places where there are subviews. Once it has shown the subviews (either by my previous manual scrolling or animated scrolling), the animation goes a lot more smoothly. From this, I deduce that there must be some sort of caching going on.
Have you run the profiler (Shark/Instruments)? That may give some clues regarding what is causing the slowdown. "deduction" is rarely a good choice when trying to optimize code.
Also, what kinds of views are in your scroll view? Are those standard system views (and if yes, which ones and with what content), or custom views of your own? Have you checked whether you are doing any unnecessarily repeated drawing that you could be cacheing to speed up the views, or display of a table view or whatever?
Cheers,
-- Uli Kusterer
"The Witnesses of TeachText are everywhere..."
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