Spring
A library to simplify iOS animations in Swift.
Updated for Swift 3.0
Requires Xcode 8 and Swift 3.
Installation
Drop in the Spring folder to your Xcode project (make sure to enable "Copy items if needed" and "Create groups").
Or via CocoaPods:
use_frameworks!
pod 'Spring', :git => 'https://github.com/MengTo/Spring.git', :branch => 'swift3'
Usage with Storyboard
In Identity Inspector, connect the UIView to SpringView Class and set the animation properties in Attribute Inspector.