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)._______________________________________________
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