2016年swift3发布了，毫无疑问，Swift已经成为github上最受欢迎的语言之一，对于iOS开发者来说，学习开源库可以帮你快速学习和掌握这门语言。Mybridge AI从将近2700个开源Swift UI库中筛选了39个项目推荐给开发者，这些项目被选中的几率只有1.4%，在GitHub上的star平均数是2527.
Animation UI
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No 1 Spring [9164 stars on Github]
A library to simplify iOS animations in Swift.

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No 2 Material [6120 stars on Github]
An animation and graphics framework that is used to create beautiful applications .
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No 3 RazzleDazzle [2291 stars on Github]
A simple keyframe-based animation framework for iOS, written in Swift. Perfect for scrolling app intros.
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No 4 Stellar [1881 stars on Github].
A fantastic Physical animation library for swift
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No 5 Macaw [594 stars on Github]
Powerful and easy-to-use vector graphics Swift library with SVG support.
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Transition UI
No 6 PagingMenuController [1305 stars on Github]
Paging view controller with customizable menu in Swift.

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No 7 PreviewTransition [1025 stars on Github]
A simple preview gallery controller.
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No 8 PinterestSwift [1007 stars on Github]
Transition like Pinterest in Swift.
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No 9 YouTube Transition [786 stars on Github]
Watch a video on the right corner like Youtube iOS app, written in Swift 3.
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No 10 Twicket Segmented Control [680 stars on Github]
Custom UISegmentedControl replacement for iOS, written in Swift.
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Pop up UI
No 11 SCLAlertView-Swift [3056 stars on Github]
Beautiful animated Alert View written in Swift.

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No 12 SwiftMessages [1356 stars on Github]
Very flexible alert messages written in Swift.
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No 13 XLActionController [1346 stars on Github]
Fully customizable and extensible action sheet controller written in Swift 3.
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No 14 Popover [852 stars on Github]
Balloon pop up library like Facebook app, written in pure swift.
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No 15 Presentr [635 stars on Github]
Wrapper for custom ViewController presentations.
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Feed UI
No 16 FoldingCell [4285 stars on Github]
An expanding content cell inspired by folding paper material.

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No 17 ExpandingCollection [2425 stars on Github]
A card peek/pop controller.
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No 18 DGElasticPullToRefresh [2308 stars on Github]
Elastic pull to refresh component written in Swift.
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No 19 Persei [2269 stars on Github]
Animated top menu for UITableView / UICollectionView / UIScrollView written in Swift .
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No 20 IGListKit [2443 stars on Github]
A data-driven UICollectionView framework for building fast and flexible lists—Instagram Engineering.
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No 21 PullToMakeSoup [1301 stars on Github]
Custom animated pull-to-refresh that can be easily added to UIScrollView.
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No 22 DZNEmptyDataSet [6552 stars on Github]
Empty State UI Library.

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No 23 Instructions [2256 stars on Github]
Create walkthroughs and guided tours in Swift.
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No 24 Presentation [1680 stars on Github]
Make tutorials, release notes and animated pages.
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Color UI
No 25 Chameleon [7071 stars on Github]
Flat Color Framework for Swift Developers.

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No 26 Hue [1612 stars on Github]
All-in-one coloring utility that you’ll ever need to write in Swift.
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No 27 DynamicColor [1310 stars on Github]
Extension to manipulate colors easily in Swift.
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Image UI
No 28. FaceAware [1424 stars on Github]
An extension that gives UIImageView the ability to focus on faces within an image when using AspectFill.
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No 29. ComplimentaryGradientView [384 stars on Github]
Create complementary gradients generated from dominant and prominent colors in supplied image.
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Graph UI
No 30. Charts [11433 stars on Github]
Beautiful charts for iOS built in Swift .

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No 31. Scrollable-GraphView [3065 stars on Github]
An adaptive scrollable graph view for iOS to visualize simple discrete datasets. Written in Swift.
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Icon UI
No 32. Paper Switch [1849 stars on Github]
RAMPaperSwitch is a Swift module which paints over the parent view when the switch is turned on.

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No 33. Circle Menu [1768 stars on Github]
A simple, elegant menu with a circular layout.
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Schedule UI
No 34. JTAppleCalendar [1026 stars on Github]
The Unofficial Swift Apple Calendar Library. View. Control. for iOS & tvOS .

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No 35. DateTimePicker [455 stars on Github]
A nicer iOS UI component for picking date and time .
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Form UI
No 36 Eureka [4117 stars on Github]
Elegant iOS form builder in Swift .

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Layout UI
No 37 Neon [3439 stars on Github]
A powerful Swift programmatic UI layout framework for iPhone & iPad .

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Message UI
No 38 NMessenger [1492 stars on Github]
A fast, lightweight messenger component built on AsyncDisplaykit and written in Swift.

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Search UI
No 39 Reel-search [1364 stars on Github]
A search controller that allows you to choose options from a list.

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最后

良辰赞想说这39个开源项目，几乎可以实现你的所有想法，快来点个喜欢，赞吧！