Animo

Bring life to CALayers with SpriteKit-like animation builders.

Why use Animo?

Because declaring CAAnimations (especially with CAAnimationGroups) is very verbose and tedious.

Animo turns this:

let positionAnimation = CABasicAnimation(keyPath: "position")
positionAnimation.fromValue = NSValue(CGPoint: fromPoint)
positionAnimation.toValue = NSValue(CGPoint: toPoint)

let colorAnimation = CABasicAnimation(keyPath: "backgroundColor")
colorAnimation.fromValue = fromColor.CGColor
colorAnimation.toValue = toColor.CGColor

let animationGroup = CAAnimationGroup()
animationGroup.animations = [positionAnimation, colorAnimation]
animationGroup.fillMode = kCAFillModeForwards
animationGroup.removedOnCompletion = false
animationGroup.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)

someView.layer.addAnimation(animationGroup, forKey: "animationGroup")

to this:

someView.layer.runAnimation(
    Animo.group(
        Animo.move(from: fromPoint, to: toPoint, duration: 1),
        Animo.keyPath("backgroundColor", from: fromColor, to: toColor, duration: 1),
        timingMode: .EaseInOut,
        options: Options(fillMode: .Forwards)
    )
)

Feature List

All timing modes from http://easings.net/ are implemented.
Choose how to mix your animations with grouping utilities:
- group(...)
- sequence(...)
- autoreverse(...)
- wait(...)
- replay(...) and replayForever(...)
No need to box native types and struct types in NSValues! Animo will do that for you for:
- Int8
- Int16
- Int32
- Int64
- UInt8
- UInt16
- UInt32
- UInt64
- Int
- UInt
- CGFloat
- Double
- Float
- CGPoint
- CGSize
- CGRect
- CGAffineTransform
- CGVector
- CATransform3D
- UIEdgeInsets
- UIOffset
- NSRange
No need to bother between CGColor and UIColor! Animo automatically converts the following types for you so you can just use UIKit objects all the time:
- UIColor → CGColor
- UIImage → UIImage
- UIBezierPath → CGPath
Don't bother type-casting M_PI anymore and just use Degrees-to-Radians (and vice-versa) extensions for CGFloat, Double, and Float!

Here's a slightly complex animation that showcases what else you can do with Animo:

someView.layer.runAnimation(
    Animo.sequence( // Runs a list of animations in sequence
        Animo.wait(1), // Waits for a certain interval before running the next animation
        Animo.replayForever( // Replays the animation endlessly
            Animo.sequence(
                Animo.move( // Moves the layer's position
                    by: CGPoint(x: 100, y: 200), // "by", "from", and "to" arguments are supported
                    duration: 2,
                    timingMode: .Spring(damping: 1) // simplistic spring function that doesn't rely on physics
                ),
                Animo.rotateDegrees( // Rotates the layer (degrees and radians variants are supported)
                    by: -180,
                    duration: 1,
                    timingMode: .EaseInOutBack
                ),
                Animo.autoreverse( // Auto-reverses the animation
                    Animo.keyPath(
                        "cornerRadius", // Any custom KVC key is supported as well!
                        to: 10,
                        duration: 1,
                        timingMode: .EaseInOutBack
                    )
                ),
                Animo.group( // Runs multiple animations together
                    Animo.scaleX(
                        by: 2,
                        duration: 1,
                        timingMode: .EaseInOutBack
                    ),
                    Animo.scaleY(
                        by: 0.5,
                        duration: 1,
                        timingMode: .EaseInOutBack
                    )
                ),
                Animo.wait(1),
                Animo.move(
                    by: CGPoint(x: -100, y: -200),
                    duration: 2,
                    timingMode: .EaseInOutBack
                ),
                Animo.rotateDegrees(
                    by: 180,
                    duration: 1,
                    timingMode: .EaseInOutBack
                ),
                Animo.group(
                    Animo.scaleX(
                        to: 1,
                        duration: 1,
                        timingMode: .EaseInOutBack
                    ),
                    Animo.scaleY(
                        to: 1,
                        duration: 1,
                        timingMode: .EaseInOutBack
                    )
                )
            )
        )
    )
)

Install with CocoaPods

Add

pod 'Animo'

to your Podfile and run pod install

Install with Carthage

Add

github "eure/Animo" >= 1.2.0

to your Cartfile and run carthage update

Install as Git Submodule

Run

git submodule add https://github.com/eure/Animo.git <destination directory>

To install as a framework:

Drag and drop Animo.xcodeproj to your project.

To include directly in your app module:

Add all .swift files to your project.

License

Animo is released under an MIT license. See the LICENSE file for more information.

eure/Animo

eure

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