CAAnimationGroup won't animate

Question

Created Jul ’15

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Either of these animations work by themselves but when combined in an animation group, nothing appears. (I comment out one or the other in following code).

What am I doing wrong?

if (![annotationView.layer animationForKey:@"alphaAndScaleAnimationGroup"])
    {
        CABasicAnimation *scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
        scaleAnimation.fromValue = [NSNumber numberWithFloat:0.0f];
        scaleAnimation.toValue = [NSNumber numberWithFloat:1.0f];
       
        CABasicAnimation *alphaAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
        alphaAnimation.fromValue = [NSNumber numberWithFloat:0.10f];
        alphaAnimation.toValue = [NSNumber numberWithFloat:0.0f];
       
        CAAnimationGroup *group = [CAAnimationGroup animation];
        group.duration = 2;
        group.repeatCount = INFINITY;
        group.autoreverses = NO;
        group.removedOnCompletion = NO;
        group.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
        [group setAnimations:[NSArray arrayWithObjects: scaleAnimation, alphaAnimation, nil]];
        [annotationView.layer addAnimation:group forKey:@"alphaAndScaleAnimationGroup"];
    }

Answered by HyperNovaSoftware in 25184022

[annotationView.layer addAnimation:group forKey:@"alphaAndScaleAnimationGroup"];
//   should be 
[correctView.layer addAnimation:group forKey:@"alphaAndScaleAnimationGroup"];

I used the wrong view, so naturally nothing worked.

Now it works.

Boost

Answer 1

HyperNovaSoftware OP

Jul ’15

Accepted Answer

[annotationView.layer addAnimation:group forKey:@"alphaAndScaleAnimationGroup"];
//   should be 
[correctView.layer addAnimation:group forKey:@"alphaAndScaleAnimationGroup"];

I used the wrong view, so naturally nothing worked.

Now it works.

0