back to home

MengTo / Spring

A library to simplify iOS animations in Swift.

14,073 stars
1,812 forks
165 issues
SwiftRubyObjective-C

AI Architecture Analysis

This repository is indexed by RepoMind. By analyzing MengTo/Spring in our AI interface, you can instantly generate complete architecture diagrams, visualize control flows, and perform automated security audits across the entire codebase.

Our Agentic Context Augmented Generation (Agentic CAG) engine loads full source files into context, avoiding the fragmentation of traditional RAG systems. Ask questions about the architecture, dependencies, or specific features to see it in action.

Embed this Badge

Showcase RepoMind's analysis directly in your repository's README.

[![Analyzed by RepoMind](https://img.shields.io/badge/Analyzed%20by-RepoMind-4F46E5?style=for-the-badge)](https://repomind-ai.vercel.app/repo/MengTo/Spring)
Preview:Analyzed by RepoMind

Repository Summary (README)

Preview

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

ChangeLog

License

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