On Tue, Aug 24, 2010 at 2:42 PM, Scott Andrew <scottand...@roadrunner.com> wrote: > I have a question that I have been researching but can't find an answer for. > > I have some iOS 3.2 code using NSOperation this doesn't work using > NSOperation but works using NSThread withe detatch thread in iOS4 with the > desired effect. My code is basically to create and generate pages for my > paged scrollview in the background. Its basically a play on the WWDC picture > scroller demo. I however have some almost full screen views we prepare in the > background. The code look like: [snip]
UI operations are not generally thread safe. While I couldn't find anything specific to UIKit in a quick search on Apple's site (the thread safety guide in the iPhone section still talks about NSWindow and such, doh!), if it's anything like AppKit, there is very little manipulation of views that you can safely do from secondary threads. That it's working with NSThread is pure luck. You need to refactor your code so that all view manipulation happens on the main thread. Mike _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
