Hummm... looks like my approach has flaw. Thanks a ton, Cocoa.learner
On Thu, Mar 11, 2010 at 11:52 PM, Quincey Morris < quinceymor...@earthlink.net> wrote: > On Mar 11, 2010, at 06:50, cocoa learner wrote: > > > And on this custom view I have a progress bar, that progressbar gets it's > > progress value from a NSThread. And I am using following function render > the > > progressbar, from NSThread - > > > > > > [progBar performSelectorOnMainThread: (display) withObject: nil > > waitUntilDone: YES]; > > There seem to be two things wrong here. > > First, you must *not* set the value of the progress bar from a non-main > thread. Setting the value causes a UI update, and that won't work properly > unless it's done on the main thread. Instead, you must devise a method for > the background thread to pass the desired value to the main thread, and have > the main thread set the progress bar value. > > Second, it's rarely correct to invoke [NSView display] yourself. Typically, > you would use [NSView setNeedsDisplay]. > > In any case, it's not clear why you think you need to cause the progress > bar to redisplay. If you set the value properly from the main thread, it > will redisplay itself as necessary. If you're having a problem with the > animation not running, you just need to make sure you set (or re-set) the > value often enough. > > > _______________________________________________ > > 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/cocoa.learner%40gmail.com > > This email sent to cocoa.lear...@gmail.com > _______________________________________________ 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
