ValueAnimator
- Multiple properties in funcion 'onChanged'
Demo
Usage
ValueAnimator makes the transition from initial value to target value using easing functions.
Simple animation
let animator = ValueAnimator.animate("some", from: 0, to: 360, duration: 1.0,
onChanged: { p, v in
print("property \(p): \(v.value)")
},
easing: EaseCircular.easeIn())
animator.resume()Yoyo annimation with 2 values
let yoyoAni = ValueAnimator.animate(
props: ["h", "w"],
from: [20, 30],
to: [5, 150],
duration: 1.4,
easing: EaseSine.easeInOut(),
onChanged: { p, v in
if p == "h" {
let width = self.rect1.bounds.width
self.rect1.frame = CGRect(x: 24, y: 140, width: width, height:v.cg)
} else {
let height = self.rect1.bounds.height
self.rect1.frame = CGRect(x: 24, y: 140, width:v.cg, height: height)
}
},
option: ValueAnimator.OptionBuilder()
.setYoyo(true)
.build())
yoyoAni.resume()Thread
ValueAnimator uses its own work-thread. But the callback changeCallback, endCallback is called in main-thread. if you wanna it called in work-thread, you just set the 'callbackOnMainThread' property is false.
let someView: UIView!
let animator = ValueAnimator.animate("some", from: 0, to: 1, duration: 1.0,
onChanged: { p, v in
// called in ValueAnimator's work-thread
},
easing: EaseCircular.easeIn())
animator.callbackOnMainThread = false
animator.resume()Example
To run the example project, clone the repo, and run open ValueAnimator.xcworkspace. You can see ValueAnimatorExample project.
Installation
CocoaPods
Simply add the following line to your Podfile:
pod 'ValueAnimator'Swift Package Manager
- Open Xcode
- Go to File > Swift Packages > Add Package Dependency...
- Paste this Github Repo URL (https://github.com/brownsoo/ValueAnimator) into the search bar.
- Select the ValueAnimator repo from the search results.
Author
brownsoo, @medium
License
ValueAnimator is available under the MIT license. See the LICENSE file for more info.