Re: iPhone animation puzzle
Re: iPhone animation puzzle
- Subject: Re: iPhone animation puzzle
- From: David Rowland <email@hidden>
- Date: Sun, 20 Mar 2011 09:59:03 -0700
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 <email@hidden> 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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