Re: iPhone: how to tell if a UIScrollView is scrolling?
Re: iPhone: how to tell if a UIScrollView is scrolling?
- Subject: Re: iPhone: how to tell if a UIScrollView is scrolling?
- From: Luke the Hiesterman <email@hidden>
- Date: Tue, 10 Nov 2009 10:00:04 -0800
@property(nonatomic,readonly,getter=isDragging) BOOL
dragging; // returns YES if user has started scrolling. this
may require some time and or distance to move to initiate dragging
Luke
On Nov 10, 2009, at 9:18 AM, John Michael Zorko wrote:
Hello, all ...
After making the NSOperation and view tag changes, my app is
scrolling a large table view with hundreds of images much better.
However, there is still some jerkiness, caused by the fact that when
the NSOperation calls the refresh (image update) method, it has to
call it on the main thread. So, every time the image needs to
update, the scrolling pauses for a bit, which makes scrolling jerky
when images haven't been cached.
I was thinking that I could only update the image if the table view
isn't scrolling, but I don't see an isScrolling property on
UIScrollView. Is there a way, in OS 2.2.1, that I can tell if a
scroll view is scrolling?
Regards,
John
Falling You - exploring the beauty of voice and sound
http://www.fallingyou.com
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