That's because viewDidLoad doesn't mean it's going to be displayed now. It just informs you that view was loaded. You have to use viewWillAppear/viewWillDisappear or any other method where you know that view is visible = you'll see animations.
Sent from my iPhone On 2.3.2011, at 10:44, Martin Linklater <mslinkla...@gmail.com> wrote: > Thanks Luke > > I did manage to find a solution. I was creating and calling the transition > from within 'viewDidLoad'. If I move the call to 'transitionWithView' out of > 'viewDidLoad' and into a different method the transition works fine. > Animating properties work when called from 'viewDidLoad', but transitions hit > their end state instantly. > > Not sure if this is how it's meant to work, but I've not found any > documentation mentioning this subtlety. > > Thanks. > > On 2 Mar 2011, at 04:40, Luke Hiesterman wrote: > >> You can only animate properties documented as "animatable". Try adding your >> subview to its superview with an alpha of 0.0 and then animating the alpha >> to 1.0. >> >> Luke >> >> On Mar 1, 2011, at 8:32 AM, Martin Linklater <mslinkla...@gmail.com> wrote: >> >>> Hi - I'm having trouble getting Core Animation to animate a UIButton >>> appearing on my parent view. My old code did this: >>> >>> <create button> >>> [self.view addSubview:newButton]; >>> >>> The button appeared straight away and works fine. Now, I'm trying to >>> animate the appearance of this button and I just can't seem to get it >>> working. Whatever I try the button appears straight away, just like the >>> line above. I've tried numerous snippets of sample code, none of them work. >>> My current code looks like this: >>> >>> <create button> >>> [UIView transitionWithView:self.view duration:1.0 >>> options:UIViewAnimationOptionTransitionCurlUp animations:^{ [self.view >>> addSubview:newButton]; } completion:nil]; >>> >>> I'm obviously doing something wrong here, can anyone point me in the right >>> direction ? >>> >>> Thanks - I'm new to CA, so please bare with me >>> 8)._______________________________________________ >>> >>> 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/luketheh%40apple.com >>> >>> This email sent to luket...@apple.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/robert%40izyapps.com > > This email sent to rob...@izyapps.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