毫無疑問，Swift已經成為github上最受歡迎的語言之一，對於iOS開發者來說，學習開源庫可以幫你快速學習和掌握這門語言。Mybridge AI從將近2700個開源Swift UI庫中篩選了39個專案推薦給開發者，這些專案被選中的機率只有1.4%，在GitHub上的star平均數是2527。

Animation UI

A library to simplify iOS animations in Swift.

An animation and graphics framework that is used to create beautiful applications .

A simple keyframe-based animation framework for iOS, written in Swift. Perfect for scrolling app intros.

A fantastic Physical animation library for swift

Powerful and easy-to-use vector graphics Swift library with SVG support.

Transition UI

Paging view controller with customizable menu in Swift.

A simple preview gallery controller.

Transition like Pinterest in Swift.

Watch a video on the right corner like Youtube iOS app, written in Swift 3.

Custom UISegmentedControl replacement for iOS, written in Swift.

Pop up UI

Beautiful animated Alert View written in Swift.

Very flexible alert messages written in Swift.

Fully customizable and extensible action sheet controller written in Swift 3.

Balloon pop up library like Facebook app, written in pure swift. 

Wrapper for custom ViewController presentations.

Feed UI

An expanding content cell inspired by folding paper material.

A card peek/pop controller.

Elastic pull to refresh component written in Swift.

Animated top menu for UITableView / UICollectionView / UIScrollView written in Swift .

A data-driven UICollectionView framework for building fast and flexible lists—Instagram Engineering.

Custom animated pull-to-refresh that can be easily added to UIScrollView.

Empty State UI Library.

Create walkthroughs and guided tours in Swift.

Make tutorials, release notes and animated pages.

Color UI

Flat Color Framework for Swift Developers.

All-in-one coloring utility that you’ll ever need to write in Swift.

Extension to manipulate colors easily in Swift.

Image UI

An extension that gives UIImageView the ability to focus on faces within an image when using AspectFill.

Create complementary gradients generated from dominant and prominent colors in supplied image.

Graph UI

Beautiful charts for iOS built in Swift .

An adaptive scrollable graph view for iOS to visualize simple discrete datasets. Written in Swift.

Icon UI

RAMPaperSwitch is a Swift module which paints over the parent view when the switch is turned on.

A simple, elegant menu with a circular layout.

Schedule UI

The Unofficial Swift Apple Calendar Library. View. Control. for iOS & tvOS .

A nicer iOS UI component for picking date and time .

Form UI

Elegant iOS form builder in Swift .

Layout UI

A powerful Swift programmatic UI layout framework for iPhone & iPad .

Message UI

A fast, lightweight messenger component built on AsyncDisplaykit and written in Swift.

Search UI

A search controller that allows you to choose options from a list.