Open Source Swift Libraries

A declarative library for building component-based user interfaces in UITableView and UICollectionView. Provides a declarative design with the power of diffing algorithm for building list UIs. Declare the component once, it can be reused regardless kind of the list element. Solves the various problems by architecture and algorithm without destructing UIKit. Carbon is a library for building component-based user interfaces in UITableView and UICollectionView inspired by SwiftUI and React. This make it painless to build and maintain the complex UIs. Since components made with Carbon can be works directly on SwiftUI, the cost of future migration can be greatly reduced. Uses DifferenceKit which is highly optimized based on Paul Heckel’s paper for diffing. Declarative design and diffing algorithm make your code more predictable, debugging easier and providing beautiful animations to users.

Dynamic is an Objective-C library for dynamically interacting with private and public iOS APIs. It allows developers to access properties, methods, and classes that are not normally exposed, useful for runtime exploration and advanced debugging.

Google Toolbox for Mac (GTMSession) is a comprehensive collection of open source Objective-C utilities and frameworks developed by Google to support macOS and iOS application development. It consolidates reusable code components drawn from various internal Google projects, offering developers a wide range of tools for building efficient, maintainable Apple platform software. The library includes modules for networking, logging, testing, data handling, and user interface extensions, helping developers avoid reinventing common functionality. Its modular design allows developers to integrate only the components they need, improving project flexibility and performance. With well-documented interfaces and consistent coding standards, Google Toolbox for Mac serves as a reliable foundation for both small and large-scale applications. It continues to be widely used across open source and internal projects that target Apple ecosystems.

Iconic helps make icon fonts integration effortless on iOS, tvOS and watchOS. Its main component is in charge of auto-generating strongly typed Swift code with SwiftGen, compatible with Objective-C. You will interact with an auto-generated class under the name of {FontName}Icon.swift, which is a light abstraction of the IconDrawable.swift protocol. Some open-sourced icon fonts don't include the names of each of their glyphs. This could result in a non-descriptive enum, which can make things less intuitive for you when using Iconic. If you create your own icon font, make sure to properly name each glyph. You can construct an UIImage instance out of a font's icon and tint it. This may be very convenient for integrating with existing UIKit controls which expect UIImage objects already.

LayoutKit is a fast view layout library for iOS, macOS, and tvOS. LinkedIn created LayoutKit because we have found that Auto Layout is not performant enough for complicated view hierarchies in scrollable views. LayoutKit is as fast as manual layout code and is significantly faster than Auto Layout.Layouts can be computed in a background thread so user interactions are not interrupted. Layouts are declared with immutable data structures. This makes layout code easier to develop, document, code review, test, debug, profile, and maintain. Layout results are immutable data structures so they can be precomputed in the background and cached to increase user perceived performance.

Starscream is a conforming WebSocket (RFC 6455) library in Swift. Once imported, you can open a connection to your WebSocket server. Note that socket is probably best as a property, so it doesn't get deallocated right after being setup. After you are connected, there is either a delegate or closure you can use for process WebSocket events. The writeData method gives you a simple way to send Data (binary) data to the server. The writeString method is the same as writeData, but sends text/string. The writePing method is the same as write, but sends a ping control frame. Starscream will automatically respond to incoming ping control frames so you do not need to manually send pongs. You can override the default websocket headers, add your own custom ones and set a timeout. Update docs on how to load certificates and public keys into an app bundle, use the builtin pinner and TrustKit.