Re: Why can't a modal view controller present another in viewDidLoad?
Re: Why can't a modal view controller present another in viewDidLoad?
- Subject: Re: Why can't a modal view controller present another in viewDidLoad?
- From: Matt Neuburg <email@hidden>
- Date: Mon, 17 Jan 2011 10:13:44 -0800
On Jan 16, 2011, at 7:46 PM, Luke Hiesterman wrote:
> Delayed performance is not appropriate for something like this, because that fact that your view was just loaded is not a guarantee that it's about to be added to the view hierarchy. Delayed performance should not be used as a haphazard crutch because it seems to make a given problem go away. It should only be used when the problem and the purpose of the delayed perform are both well understood.
>
Yes, fair enough. There are a lot of indeterminacies in the framework - for example, it might perform an animation for whose finish you get no notification, or you might need to wait until after the next "redraw moment" (as I call it) - and one gets into the habit of using delayed performance as a way of skirting these. But I certainly see why this is a different sort of case. m.
> On Jan 16, 2011, at 6:46 PM, Matt Neuburg <email@hidden> wrote:
>
>> On Sun, 16 Jan 2011 13:47:06 -0800, G S <email@hidden> said:
>>> On Sun, Jan 16, 2011 at 11:47 AM, Luke Hiesterman <email@hidden> wrote:
>>>> viewDidLoad is called the first time the view property of the vc is accessed - that's when loading happens. There is no guarantee that the view is in a window at that time, and presenting a modal vc on a vc whose view is not in a window does not make sense. Perhaps viewDidAppear is what you were looking for.
>>
>> Or just use delayed performance. I use delayed performance a *lot*. Like whipped cream, it covers a multitude of sins. m.
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