I seem to recall that one of the WWDC 2010 instructional videos - available for
free from Apple's developer site - mentions that the block version has
UIViewAnimationOptionAllowUserInteraction off by default.
That being said, have you filed a document enhancement request?
WT
On Mar 20, 2011, at 1:59 PM, David Rowland wrote:
> That did it.
>
> The "View Programmming Guide for iOS", discusses both methods and implies
> that their code samples are equivalent. They don't say, or I didn't see, that
> the option you mention is on by default for the begin/commit style and off
> for the newer block style.
>
> thanks,
>
> David
>
>
>
> On Mar 19, 2011, at 5:08 PM, Roland King wrote:
>
>> UIViewAnimationOptionAllowUserInteraction ?
>>
>>
>>
>> On Mar 20, 2011, at 5:42, David Rowland <rowla...@sbcglobal.net> wrote:
>>
>>> This works. It fades the label to invisibility.
>>>
>>> label.alpha = 1.0;
>>> [UIView beginAnimations:nil context:nil];
>>> [UIView setAnimationDuration:2.5];
>>> label.alpha = 0;
>>> [UIView commitAnimations];
>>>
>>>
>>> and so does this,
>>>
>>> label.alpha = 1.0;
>>> [UIView animateWithDuration:2.5 animations:^{label.alpha = 0.0;} ];
>>>
>>>
>>> The documentation says the latter is now preferred and does the same thing
>>> as the former. In particular, both will
>>> start a separate thread for the animation.
>>>
>>> My problem is that the second method seems to block the main thread. While
>>> it is acting I cannot use any of the controls on the screen. The first
>>> method lets me do what I wish as it proceeds.
>>>
>>>
>>> Anyone have advice?
>>>
>>> thanks,
>>>
>>> David
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