Re: best way of making a constant animation
Re: best way of making a constant animation
- Subject: Re: best way of making a constant animation
- From: Gustavo Pizano <email@hidden>
- Date: Fri, 21 Jan 2011 08:08:41 +0100
Gerry thank you very much.
I have used CA before, but sometimes I get complicated it with it, dunno why.. and i end up using UIView block animations.
I will implement this and see how it looks....
G
On Jan 21, 2011, at 1:01 AM, Gerry Beggs wrote:
> Hello Gustavo.
>
> This sounds like a perfect job for Core Animation.
> With Core Animation, you can apply the animation to the UIImageView's layer.
> Core Animation allows for animations to run once and stop automatically, repeat a specific number of times, or repeat indefinitely until you tell it to stop.
>
> I do something very similar in one of my projects. Here is how you set up the rotation animation (do this to each of your 4 views that you want to rotate):
>
> CABasicAnimation *rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
> rotationAnimation.duration = 1.0;
> rotationAnimation.fromValue = [NSNumber numberWithFloat:0.0];
> rotationAnimation.toValue = [NSNumber numberWithFloat:2.0*M_PI];
> rotationAnimation.repeatCount = HUGE_VALF;
> [flashImageView.layer addAnimation:rotationAnimation forKey:@"RotatingFlash"];
>
> When you want the animation to stop do this:
>
> [flashImageView.layer removeAnimationForKey:@"RotatingFlash"];
>
> On 2011-01-20, at 3:57 PM, Gustavo Pizano wrote:
>
>> Hello all, sorry to bother with such a question... here it goes.
>>
>> I need to have a rotate animation of a UIImageView, very very soft, I know using UIView class methods I can make the animation and setting the affine transform + plus the duration to something really big like 1e100f, the thing is.. that I need that same animation to happen at the same on another 3 UIImageView which are in the other 3 corners of the display.. What would be the best approach here?.
>>
>>
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