I have this code to animate a CALayer element.
CABasicAnimation *makeBiggerAnim=[CABasicAnimation animationWithKeyPath:@"radius"];
makeBiggerAnim.duration=0.2;
makeBiggerAnim.fromValue=[NSNumber numberWithDouble:20.0];
makeBiggerAnim.toValue=[NSNumber numberWithDouble:40.0];
makeBiggerAnim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
My question is, now everything works fine, I would like another attribute of the same element at the same time. I've seen you can do additive animations and stuff.
My question is:
Thanks!
You create an instance of CABasicAnimation using the inherited init(keyPath:) method, specifying the key path of the property to be animated in the render tree. For example, you can animate a layer's scalar (i.e. containing a single value) properties such as its opacity.
An object that provides basic, single-keyframe animation capabilities for a layer property. You create an instance of CABasicAnimation using the inherited init (keyPath:) method, specifying the key path of the property to be animated in the render tree.
The animation created in Listing 3 moves a layer from (0, 0) to (100, 100). The keyPath can access the individual components of a property. For example, the Listing 4 stretches a layer by animating its transform object's x from 1 to 2.
For example, you can animate a layer's scalar (i.e. containing a single value) properties such as its opacity. Listing 1 fades in a layer by animating its opacity from 0 to 1. Non-scalar properties, such as backgroundColor, can also be animated.
You can create an CAAnimationGroup
and customize the duration and timing function on it. Then you create all your CABasicAnimations
, set their to value and add them to the animation group. Finally, you add the animation group to the layer that you are animating.
Here an example:
CABasicAnimation *makeBiggerAnim=[CABasicAnimation animationWithKeyPath:@"cornerRadius"];
makeBiggerAnim.fromValue=[NSNumber numberWithDouble:20.0];
makeBiggerAnim.toValue=[NSNumber numberWithDouble:40.0];
CABasicAnimation *fadeAnim=[CABasicAnimation animationWithKeyPath:@"opacity"];
fadeAnim.fromValue=[NSNumber numberWithDouble:1.0];
fadeAnim.toValue=[NSNumber numberWithDouble:0.0];
CABasicAnimation *rotateAnim=[CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];
rotateAnim.fromValue=[NSNumber numberWithDouble:0.0];
rotateAnim.toValue=[NSNumber numberWithDouble:M_PI_4];
// Customizing the group with duration etc, will apply to all the
// animations in the group
CAAnimationGroup *group = [CAAnimationGroup animation];
group.duration = 0.2;
group.repeatCount = 3;
group.autoreverses = YES;
group.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
group.animations = @[makeBiggerAnim, fadeAnim, rotateAnim];
[myLayer addAnimation:group forKey:@"allMyAnimations"];
let groupAnimation = CAAnimationGroup()
groupAnimation.beginTime = CACurrentMediaTime() + 0.5
groupAnimation.duration = 0.5
let scaleDown = CABasicAnimation(keyPath: "transform.scale")
scaleDown.fromValue = 3.5
scaleDown.toValue = 1.0
let rotate = CABasicAnimation(keyPath: "transform.rotation")
rotate.fromValue = .pi/10.0
rotate.toValue = 0.0
let fade = CABasicAnimation(keyPath: "opacity")
fade.fromValue = 0.0
fade.toValue = 1.0
groupAnimation.animations = [scaleDown,rotate,fade]
loginButton.layer.add(groupAnimation, forKey: nil)
This is for the newest update on swift (swift 3). Your code should include a object at the end, i.e. UIButton, UILabel, something that you can animate. In my code it was the loginButton (which was the title or name).
In Swift-3 we can use CAAnimationGroup as below :-
let position = CAKeyframeAnimation(keyPath: "position")
position.values = [ NSValue.init(cgPoint: .zero) , NSValue.init(cgPoint: CGPoint(x: 0, y: -20)) , NSValue.init(cgPoint: .zero) ]
position.timingFunctions = [ CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut), CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut) ]
position.isAdditive = true
position.duration = 1.2
let rotation = CAKeyframeAnimation(keyPath: "transform.rotation")
rotation.values = [ 0, 0.14, 0 ]
rotation.duration = 1.2
rotation.timingFunctions = [ CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut), CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut) ]
let fadeAndScale = CAAnimationGroup()
fadeAndScale.animations = [ position, rotation]
fadeAndScale.duration = 1
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