Fatbobman's Swift Weekly #089
WWDC 2025: A Return to PragmatismWWDC 2025 has drawn to a close. Over the past week, Apple introduced a host of brand-new frameworks and APIs, and unveiled the Liquid Glass visual style that is set to leave a lasting impact in the years ahead. It’s only natural that many developers, upon discovering that some long-awaited features or APIs are available only on the latest OS versions, felt the urge to bump their minimum deployment target straight to OS 26. Yet, after taking a moment to cool down, most will have to accept the reality that these new capabilities won’t be accessible for several years. In fact, Apple has made significant strides in maintaining backward compatibility in recent years. This year, all of SwiftData’s fixes support down to iOS 17, and UIKit’s integrated Observation features extend as far back as iOS 18. Still, these efforts fall short of fully meeting developers’ expectations. Compared to previous years, the number of SwiftUI updates this time around was modest. However, the breakthrough of the Liquid Glass aesthetic means developers must invest more effort in visual adaptation—carefully planning how to support two distinctly different UI styles within the same project. Fortunately, Apple has provided a one-year grace period: in Xcode 26, developers can opt to disable Liquid Glass. Although Xcode finally added an AI assistant powered by cloud-based large models—complete with thoughtful touches such as built-in AI guidance in compile error messages—it still lags behind mainstream AI coding tools in terms of iteration speed and intelligence. Given Xcode’s limited annual update cadence, it remains to be seen whether the gap will narrow or widen by WWDC 2026. All things considered, WWDC 2025 feels more pragmatic than last year. Most of the new features and APIs are ready for developers to try out immediately. In addition, Apple released all session videos at once, and the documentation quality and readability for the new APIs show a clear improvement over previous years. Based on these highlights alone, I’d give this year’s conference at least an 8.5 out of 10. How about you? Are you satisfied with WWDC 2025?
Previous Issue｜Newsletter Archive If you appreciate my work and want to promote your product to the Swift and iOS developer community, sponsoring my blog & newsletter could be an excellent opportunity for you. Recent RecommendationsA (Re-)Introduction to ExtensionKitExtensionKit is Apple’s modern framework for building extensible and modular systems. Compared to traditional App Extensions (like Share or Siri extensions), it is more flexible, powerful, and general-purpose, making it ideal for creating plugin architectures or modular app designs. First introduced in macOS Ventura (13), ExtensionKit is now finally available on iOS 26, with full feature parity across platforms. In this post, Matt Massicotte introduces the capabilities and architecture of ExtensionKit, shares how he leveraged it in his Chime project, and discusses its potential for broader use cases. SwiftData vs SQL Query BuilderStructuredQueries is a Swift library for building SQL queries, created by Point-Free. Often used alongside SharingGRDB, it doesn't abstract away SQL's complexity. Instead, it embraces the full expressive power of SQL while introducing the safety and composability of Swift’s type system, helping avoid common runtime pitfalls like typos or type mismatches. This article demonstrates how StructuredQueries elegantly handles a complex, filterable, and sortable
Sharing Content in SwiftUI with ShareLink
How to Use Apple Container, the Open-Source Docker Alternative in SwiftAt WWDC 2025, Apple quietly released SwiftUI: Liquid Glass. From Basic to (A Little) AdvanceApple introduced the new Liquid Glass material at WWDC 2025—an evolution in both visual style and interaction design. In this post, Itsuki explores how to apply Liquid Glass in SwiftUI, from basic usage to advanced effects like view merging, morphing animations, group controls, and path deformations. The article also includes practical debugging tips for known beta bugs. swift_dynamicCast in Swift’s Runtime
Toolsllm.codes - Make Apple Docs AI-ReadableApple's developer documentation is notoriously unfriendly to AI tools, largely because it relies heavily on JavaScript rendering. Peter Steinberger built llm.codes, a free service that converts such documentation into clean Markdown format—making it usable for AI models. It supports Apple Developer Docs out of the box and works with over 69 popular technical websites including AWS, Tailwind, and PyTorch. The scraped documents are structured and ready for use as AI context, improving code generation quality dramatically.
Dragula - A Smooth Drag-and-Drop Experience for SwiftUIIf you're looking for a modern and flexible drag-and-drop library for SwiftUI, Dragula by Mustafa Yusuf is worth checking out. Built on UIKit for pixel-perfect precision, Dragula brings smooth interactions and high customizability to SwiftUI.
Swift Binary Parsing: Build Safe and Efficient Binary Parsers in SwiftSwift Binary Parsing is an open-source library from Apple designed for building binary parsers in Swift. It emphasizes performance and type safety, helping avoid common undefined behaviors like integer overflow. With
WWDC 2025：回归务实的一年WWDC 2025 已经落下帷幕。在过去一周中，苹果推出了众多全新框架和 API，并展示了在未来几年将产生深远影响的 Liquid Glass 视觉风格。相信不少开发者在看到一些期盼已久的功能或 API 只能在最新系统版本中使用时，难免萌生出将项目最低支持版本直接提升至 26 的冲动。但冷静下来后，大多数开发者仍将不得不接受“数年内无法使用这些新特性”的现实。 实际上，近几年苹果在向后兼容性方面已取得显著进步。今年 SwiftData 的所有功能修复均可向下兼容至 iOS 17，而 UIKit 集成 Observation 的支持则延伸到了 iOS 18。然而，这距离开发者的全面期待显然仍有不小的差距。 相比往年，今年 SwiftUI 的更新数量并不算多，但 Liquid Glass 风格带来的突破性变化意味着开发者需要投入更多精力进行视觉适配，认真思考如何让项目同时兼容两种差异较大的 UI 风格。好在苹果提供了一年的缓冲期——在 Xcode 26 中，开发者仍可选择关闭 Liquid Glass。 尽管与主流 AI 开发工具在智能化程度上仍存差距，但 Xcode 终于首次加入了基于云端大模型的 AI 助手功能。其中一些细节设计（例如在编译错误提示中直接集成 AI 辅助）体现了苹果将 AI 深度融入 Xcode 的决心与能力。然而，主流 AI 编程工具迭代频率极高，不断紧随大模型能力的进步。考虑到 Xcode 每年只有有限的几个版本更新窗口，到 WWDC 2026 时，Xcode 与其他 AI 工具的差距究竟会缩小还是进一步拉大，仍值得持续关注。 整体而言，WWDC 2025 相比去年显得更加务实，推出的新功能和 API 大多都能让开发者在第一时间上手体验。此外，苹果还一次性地发布了全部的 Session 视频，新 API 的文档质量和可读性也较往年有明显提升。仅凭这些改进，我就愿意给今年的大会打出至少 8.5/10 的分数。 你呢？你对今年的 WWDC 2025 满意吗？
如果您发现这份周报或我的博客对您有所帮助，可以考虑通过 爱发电，Buy Me a Coffee 支持我的创作。 近期推荐ExtensionKit 再介绍 (A Introduction to ExtensionKit)ExtensionKit 是 Apple 推出的一套现代化扩展机制框架，与传统的 App Extension（如 Share Extension、Siri Extension）相比，更通用、更灵活、更强大，适用于构建通用插件系统或模块化架构。该框架最早发布于 macOS Ventura（13），如今终于在 iOS 26 中上线，并实现了与 macOS 等同的功能支持。在本文中，Matt Massicotte 对 ExtensionKit 的能力与架构进行了介绍，并分享了他在 Chime 项目中构建扩展系统的实践经验，同时也展望了该技术在更广泛领域的潜力。 SwiftData vs SQL Query BuilderStructuredQueries 是由 Point-Free 推出的一套用于构建 SQL 查询的 Swift 库，常与其推出的另一个库 SharingGRDB 配合使用。它不试图掩盖 SQL 的复杂性，而是在保留原生 SQL 表达力的同时，引入 Swift 类型系统的安全性与组合性，从而避免拼写错误、类型错误等常见运行时陷阱。本文通过构建一个真实的多条件、可排序的 Reminder 查询，展示了 StructuredQueries 在表达复杂逻辑时的简洁性与清晰性。
使用 ShareLink 在 SwiftUI 中分享内容 (Sharing Content in SwiftUI with ShareLink)
Container 使用指南 (How to Use Apple Container, the Open-Source Docker Alternative in Swift)Apple 在 WWDC 2025 期间悄然发布了一个开源项目 —— 🪜 SwiftUI: Liquid Glass. From Basic to (A Little) Advance苹果在 WWDC 2025 中引入了全新的 Liquid Glass 动态材质，这不仅是一次视觉语言的更新，也为开发者和用户带来了全新的交互体验。Itsuki 在本文中深入探索了如何在 SwiftUI 中应用 Liquid Glass，包括基础用法、视图间的融合与变形动画、分组控制与动画路径调整等进阶技巧，并针对 Beta 版本中的已知 Bug 提供了实用建议与避坑指南。 🪜 swift_dynamicCast 详解 (swift_dynamicCast in Swift’s Runtime)
工具llm.codes - Make Apple Docs AI-Readable苹果的开发文档对 AI 并不友好，一个关键原因在于其大量依赖 JavaScript 渲染，导致许多模型无法正确解析页面内容。为了解决这个问题，Peter Steinberger 创建了 llm.codes —— 一个将这类文档转换为 Markdown 格式的免费服务。它默认支持 Apple Developer Docs，同时兼容 AWS、Tailwind、PyTorch 等超过 69 个技术网站。 llm.codes 抓取后的文档不仅结构清晰，还能直接作为上下文输入给 AI 使用，极大提升了代码生成的准确性。
Dragula - 为 SwiftUI 带来流畅的拖拽重排体验如果你正在寻找一个既现代又灵活的 SwiftUI 拖放解决方案，由 Mustafa Yusuf 创建的 Dragula 很值得一试。它支持列表和分区列表的拖拽重排，底层基于 UIKit 实现，交互精细顺滑，同时提供丰富的自定义能力。
Swift Binary Parsing：构建安全高效的二进制解析器Swift Binary Parsing 是 Apple 开源的二进制解析库，专为 Swift 语言设计，兼顾性能与类型安全，旨在避免整数溢出等常见的未定义行为。它通过
Welcome to my blog Fatbobman's Swift Blog( 肘子的Swift记事本 )
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