GitHub的Objective-C的动画UI库其实是最多的一部分，GitHub有相当一部分的动画大牛，如Jonathan George，Nick Lockwood，Kevin，Roman Efimov，Christopher Wendel，Jared Verdi，Peter Steinberger 等，都是一些写出很牛逼动画库的人。
Jonathan George
star:9150
MBProgressHUD + Customizations http://www.bukovinski.com/
Transit App
star:6399
A clean and lightweight progress HUD for your iOS app. http://samvermette.com/199
Grouper
star:6362
A collection of awesome flat UI components for iOS.
Nick Lockwood
star:5931
A simple, highly customisable, data-driven 3D carousel for iOS and Mac OS http://www.charcoaldesign.co.uk/source/cocoa#icarousel
5 Shimmer
star:5867
An easy way to add a simple, shimmering effect to any view in an iOS app.
6 PNChart
Kevin
star:5389
A simple and beautiful chart lib used in Piner and CoinsMan for iOS
Roman Efimov
star:5224
iOS 7/8 style side menu with parallax effect.
Christopher Wendel
star:5077
An easy-to-use UITableViewCell subclass that implements a swippable content view which exposes utility buttons (similar to iOS 7 Mail Application)
Jared Verdi
star:4776
UITextField subclass with floating labels - inspired by Matt D. Smith's design: http://dribbble.com/shots/1254439--GIF-Mobile-Form-Interaction?list=users
10 JazzHands
IFTTT
star:4649
A simple keyframe-based animation framework for UIKit. Perfect for scrolling app intros. http://ifttt.github.io
11 Chameleon
Vicc Alexander
star:4575
Flat Color Framework for iOS (Obj-C & Swift)
12 AwesomeMenu
Jiangang Zhu
star:4397
Path 2.0 menu using CoreAnimation :) https://github.com/levey/AwesomeMenu
13 popping
André Schneider
star:4017
A collection of animation examples for iOS apps.
ECSlidingViewController
star:3979
Customizable sliding view controller container.
Sam Vermette
star:3736
Give pull-to-refresh & infinite scrolling to any UIScrollView with 1 line of code. http://samvermette.com/314
16 FXBlurView
Nick Lockwood
star:3623
UIView subclass that replicates the iOS 7 realtime background blur effect, but works on iOS 5 and above.
John Lluch Zorrilla
star:2959
A UIViewController subclass for presenting side view controllers inspired on the FaceBook and Wunderlist apps, done right!
18 JBChartView
Jawbone
star:2866
iOS-based charting library for both line and bar graphs.
19 CRToast
Collin Ruffenach
star:2848
A modern iOS toast view that can fit your notification needs
Colin Eberhardt
star:2785
A collection of iOS7 animation controllers and interaction controllers, providing flip, fold and all kinds of other transitions.
Suyu Zhang
star:2771
Fully customizable pull-to-refresh control inspired by Storehouse iOS app
honcheng
star:2668
Paper folding animation for iOS
Ali Karagoz
star:2664
Convenient UITableViewCell subclass that implements a swippable content to trigger actions (similar to the Mailbox app).
24 twui
Twitter, Inc.
star:2617
A UI framework for Mac based on Core Animation
25 Atlas-iOS
Layer
star:2566
Atlas is a library of native iOS communications user interface components for Layer. http://atlas.layer.com
Roman Efimov
star:2454
iOS 7/8 style blurred view controller that appears on top of your view controller.
Imanol Fernandez
star:2441
An easy to use UITableViewCell subclass that allows to display swippable buttons with a variety of transitions.
28 AQGridView
Jim Dovey
star:2414
A grid view for iPhone/iPad, designed to look similar to NSCollectionView. http://quatermain.tumblr.com/
Brandon McQuilkin
star:2411
A suite containing many tools to display progress information on iOS.
30 EAIntroView
Evgeny Aleksandrov
star:2348
Highly customizable drop-in solution for introduction views.
Peter Steinberger
star:2329
Open Source, 100% API compatible replacement of UICollectionView for iOS4.3+ http://petersteinberger.com
32 Chameleon
Sean Heber
star:2319
Chameleon is a port of Apple's UIKit for iOS (and some minimal related frameworks) to Mac OS X. http://chameleonproject.org/
33 GMGridView
Gulam Moledina
star:2276
A performant Grid-View for iOS (iPhone/iPad) that allows sorting of views with gestures (the user can move the items with his finger to sort them) and pinching/rotating/panning gestures allow the user to play with the view and toggle from the cellview to a fullsize display.
34 SIAlertView
Sumi Interactive
star:2212
An UIAlertView replacement with block syntax and fancy transition styles.
35 CHTCollectionViewWaterfallLayout
Nelson
star:2139
The waterfall (i.e., Pinterest-like) layout for UICollectionView.
Jeff Hurray
star:2122
Easy to read and write chainable animations in Objective-C
37 CMPopTipView
Chris Miles
star:2088
Custom UIView for iOS that pops up an animated "bubble" pointing at a button or other view. Useful for popup tips. https://github.com/chrismiles/CMPopTipView
38 MRProgress
Marius Rackwitz
star:2059
Collection of iOS drop-in components to visualize progress
Satoshi Asano
star:2034
UIWebView progress interface
Leo
star:2021
UINavigationBar Category which allows you to change its appearance dynamically
Yalantis
star:2016
Folding Tab Bar and Tab Bar Controller https://yalantis.com
42 Chameleon
Peter Steinberger
star:2004
open source implementation of Twitter/iPad stacked ui - done right. http://twitter.com/steipete
Ryan Nystrom
star:1987
A Control Center-esque control with blurred background and toggle animations.
Victor Baro
star:1982
Flat button with 9 different states using POP
45 REMenu
Roman Efimov
star:1973
Dropdown menu inspired by Vine.
46 iOS-blur
César Pinto Castillo
star:1934
Blur a UIView
Zhixuan Lai
star:1879
A simple view for building card like interface inspired by Tinder and Potluck.
Boris-Em
star:1859
Elegant Line Graphs for iOS (charting library)
Mark Pospesel
star:1816
Easily add custom folding and page-flipping transitions to UIViews and UIViewControllers http://markpospesel.com/2012/05/07/mpfoldtransition/
Andrea Mazzini
star:1807
Custom transition between viewcontrollers holding tableviews?