iOS-多媒体-回弹动画-6Spring

## Updated for Swift 4.2 Requires Xcode 10 and Swift 4.2. ## 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' ``` ## Usage with Storyboard In Identity Inspector, connect the UIView to SpringView Class and set the animation properties in Attribute Inspector.  ## Usage with Code layer.animation = "squeezeDown" layer.animate() ## Demo The Animations  ## Chaining Animations layer.y = -50 animateToNext { layer.animation = "fall" layer.animateTo() } ## Functions animate() animateNext { ... } animateTo() animateToNext { ... } ## Animation shake pop morph squeeze wobble swing flipX flipY fall squeezeLeft squeezeRight squeezeDown squeezeUp slideLeft slideRight slideDown slideUp fadeIn fadeOut fadeInLeft fadeInRight fadeInDown fadeInUp zoomIn zoomOut flash ## Curve spring linear easeIn easeOut easeInOut ## Properties force duration delay damping velocity repeatCount scale x y rotate \* Not all properties work together. Play with the demo app. ## Autostart Allows you to animate without code. Don't need to use this if you plan to start the animation in code. ## Autohide Saves you the hassle of adding a line "layer.alpha = 0" in viewDidLoad(). ## Known issue Animations won't autostart when view is reached via performSegueWithIdentifier. ## Tutorials - Tutorials available on [Design+Code](https://designcode.io/swiftapp). - [Integrate Spring to existing Objective-C projects](https://medium.com/ios-apprentice/using-swift-in-objective-c-projects-f7e7a09f8be) ## ChangeLog - At [ChangeLog](https://github.com/MengTo/Spring/wiki/CHANGELOG) wiki page ## License Spring is released under the MIT license. See LICENSE for details.