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Code Quality Rank: L5
Programming language: Swift
License: MIT License
Tags: Animation     UI    
Latest version: v1.2.10

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README

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anim is an animation library written in Swift with a simple, declarative API in mind.

// moves box to 100,100 with default settings
anim {
    self.box.frame.origin = CGPoint(x:100, y:100)
}
// after that, waits 100 ms
.wait(0.1)
// moves box to 0,0 after waiting
.then {
    self.box.frame.origin = CGPoint(x:0, y:0)
}
// displays message after all animations are done
.callback {
    print("Just finished moving 📦 around.")
}

It supports a bunch of easing functions and chaining multiple animations. It's a wrapper on Apple's UIViewPropertyAnimator on its core, and falls back to UIView.animate on versions before iOS and tvOS 10. It uses NSAnimationContext on macOS.

Examples

Example projects are available at examples/ folder and as targets on XCode project.

Cocoapods

pod 'anim'

Carthage

github "onurersel/anim"

Manually

Or simply drag the swift files inside src/ folder into your project.

For complete documentation, visit http://onurersel.github.io/anim/.

Initialize animations with anim constructor.

// Initialize with default settings
anim {
    // animation block
}

// or initialize with it's own settings
anim { (settings) -> (animClosure) in
    settings.delay = 1
    settings.duration = 0.7
    settings.ease = .easeInOutBack

    return {
        // animation block
    }
}

// or initialize layout constraint animations just by passing the parent view
anim(constraintParent: self.view) {
    // animation block
}

anim(constraintParent: self.view) { (settings) -> (animClosure) in
    // settings...
    return {
        // animation block
    }
}

// you don't need to call layoutIfNeeded() before or inside the
// animation blocks, it's handled by anim
//
// for example to update constant value of a constraint,
// you can just change it inside the animation block
let width: NSLayoutConstraint //...
anim(constraintParent: self.view) {
    width.constant = 100 // new value
}
// that's it!

Chain animations with then function.

anim {}
.then{
    // next animation block
}

anim {}
.then { (settings) -> animClosure in
    settings.duration = 1
    return {
        // next animation block
    }
}

anim {}
.then(constraintParent: self.view) {
    // chaining constraint animations
}
.then(constraintParent: self.view) { (settings) -> animClosure in
    settings.duration = 1
    return {
        // next animation block for constraints
    }
}

Wait between animation steps with wait function.

anim{}.wait(0.25).then{} //...

Insert callbacks between animation steps with .callback function.

anim{}
.callback {
    // custom block
}
.then{} //...

Stop animations with stop function.

let animation = anim{}.then{} // ...
animation.stop()

Default settings

You can change default animation settings through anim.defaultSettings property.

anim.defaultSettings.ease = .easeInOutCubic

Easing

anim.Ease exposes a bunch of easing options.

anim is released under the MIT license. See LICENSE for details.


*Note that all licence references and agreements mentioned in the anim README section above are relevant to that project's source code only.