try! Swift Tokyo 2025

Every year at WWDC Apple introduces lots of cool new APIs! But most of these new APIs also come with quite a gatekeeper: they can only be used on the latest version of iOS... Because of that, a lot of useful APIs fail to reach a strong adoption, and by the time their version of iOS has become mainstream they've been completely overlooked. So how about we fix that? Speaker: Vincent Pradeilles Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

What can you do with Path animations in SwiftUI? With some creativity, we can animate text, draw shapes, and more—it's a surprisingly versatile technique. In this talk, I'll showcase innovative ways to use Path animations in development and entertainment, helping you dive into this exciting world. Speaker: Sugiy Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Sometimes Swift developers make fun of languages such as JavaScript that have vague concepts like "truthy" and "falsy", but Swift is packed with its own surprises and has plenty sharp edges of its own. In this talk I want to show some of the surprising behaviors of Swift – things that behave weirdly, traps you can easily fall into, and fixes to help you write better code. There will be lots of hands-on code samples everyone can try, and it will be a fun journey through the quirks of a language we all think we know. Speaker: Sophie Hudson Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

What makes an app truly exceptional? How do the best designers create interfaces that feel intuitive, delightful, and, most importantly, human? In this talk, Sebastiaan de With pulls back the curtain on Apple's design principles and the craftsmanship behind Halide, an Apple Design Award-winning app. From refining tiny details to making tough design decisions, he'll share real-world insights on creating products that aren't just great—they're loved. Whether you're an aspiring designer or a seasoned developer, jump into a no-nonsense crash course in shipping beautiful, functional apps without getting lost in perfectionism. Speaker: Sebastiaan de With Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

WWDC24 introduced exciting updates to the Charts API, enabling more creative graph representations. This talk explores how to turn data into art using advanced customization, animations, and interactions. Elevate your data visualization skills and become a graph art designer with Charts API! Speaker: akkiee76 Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

When you have more app or game ideas than time to implement them, AI can help accelerate your workflow, generating code, assets, tests, and documentation. Let's explore the tactics and tooling I used at Nintendo and beyond to prototype game proof-of-concepts and iterate quickly in Swift & SwiftUI! Speaker: Halordain Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Everyone knows that animations are an easy way to add a touch of surprise and delight to your apps, but with SwiftUI we can add fine-grained effects to individual characters – we can literally animate letters one by one to bring our UI to life in ways that were impossible before iOS 18. In this talk I'll demonstrate how to use SwiftUI's TextRenderer protocol to build a range of effects that help bring your UI to life in fun, engaging ways. Speaker: Paul Hudson Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

In Swift, you can define identifiers not only in English but also in various natural languages. Recently, I released a Shogi app for all Apple platforms, including Apple Vision Pro. In this app, I wrote almost all identifiers in Japanese—except for reserved words and imported frameworks. In this talk, I'll share insights from my experience with Swift programming using Japanese identifiers. Speaker: Ryo Yamashita Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

High Dynamic Range imaging has the potential to change way we look at images in a way comparable to the move from HDTV change how we viewed television. This talk dives into the concept of dynamic range, how it is supported on Apple platforms, and quirks you'll run into that aren't covered in the documentation. Speaker: Benjamin Sandofsky Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

I decided to shut down my personally developed app, WebCollector, which had over 400K downloads. In this talk, I'll share the steps I took to ensure a smooth closure. Rather than simply shutting down the service, I took measures to help users properly save their data, provided clear announcements, and disclosed the process to close the app gradually. I'll also reflect on the importance of planning for app closure when running a Firebase-powered personal project. Speaker: Kazuya Ueoka Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

The Drake Equation, used by astrophysicists to estimate the number of alien civilizations we can communicate with, has many unexpected lessons for our work of building apps. A takeaway from this equation is the huge number of stars in the universe, which implies a high probability that some of them harbor life. This talk will dive into the details of the equation and then apply it to iOS. Just as the number of stars provide a powerful scale factor, there are technical factors of your app that can multiply your impact. We'll derive a new equation to calculate the carbon footprint of an app, look at iOS memory management to speed up every CPU instruction, and calculate how to reduce bugs all using lessons from the Drake Equation. I will also discuss my own experience building a startup and how I think about the implications of these scale factors when designing developer tools that many large apps will use. Speaker: Noah Martin Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Let's learn about Apple's newest framework TabletopKit for visionOS! You will learn what is TabletopKit and how you can get started using it to build games for visionOS. We'll review the basics of the framework and what it gives you, as opposed to building a game without it. We'll then explore how we would build Monopoly using TabletopKit. No visionOS experience is necessary for getting started! By the end of the talk you'll be able to begin building your own tabletop games. Speaker: Mikaela Caron Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

I write a simple iOS game app which only has the "left" and "right" action. But the exciting is that the user input can be in many way. You can choose slider, button, accelerometer, keyboard, and the new feature in iOS 18: eye tracking. So you also can use it to test any IO functionality you find. Speaker: UJ Cheng Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

I will be presenting a fast, real time, infinite canvas user interface implementation using Metal, and will be exploring the use of Multi-channel Signed Distance Fields (MSDFs), for rendering text that looks beautiful and sharp at any zoom level or orientation. Speaker: Michael Petrie Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

SwiftUI's syntax is great for UI, but it can also be used for 3D graphics. We'll combine SwiftUI's elegant syntax with raymarching and signed distance functions to make cool shaders. Speaker: Andrew Zheng Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

We all know that the NS prefix on the Apple platforms comes NextStep. However, until I built an app for NextStep, I did not realize just how much was already there. In this quick talk, I encourage attendees to deepen their knowledge of Objective C and Apple Platforms by stepping back in time to 1996 Speaker: Jeffrey Bergier Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Combine Vision Pro (visionOS) with Generative AI to instantly transform text prompts into 3D objects in real-time. Discover how Swift and cutting-edge AI come together to create immersive user experiences beyond the boundaries of traditional apps. Speaker: Ryo Igarashi Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Join us as we build a ChatGPT client, from scratch, using Swift OpenAPI Generator. We'll take advantage of Swift OpenAPI's pluggable HTTP transports to reuse the same generated client to make upstream calls from a Linux server, providing end-to-end streaming, backed by async sequences, without buffering upstream responses. In this session you'll learn how to: Generate a type-safe ChatGPT macOS client and use URLSession OpenAPI transport. Stream LLM responses using Server Sent Events (SSE). Bootstrap a Linux proxy server using the Vapor OpenAPI transport. Use the same generated ChatGPT client within the proxy by switching to the AsyncHTTPClient transport. Efficiently transform responses from SSE to JSON Lines, maintaining end-to-end streaming. Speaker: Si Beaumont Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Leverage hand tracking in Apple Vision Pro to build a SwiftUI window that operates like the native visionOS SystemOverlay. Invoke and manipulate windows intuitively in 3D space, creating a touch-like UI. We present a new interface for spatial computing. Speaker: tochi Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Take your iOS app to the next level by integrating 3D content with SwiftUI. Go beyond static models and learn how to add animations, dynamic content ,performance enhancements and interactive elements using RealityKit, creating immersive experiences that set your app apart. Speaker: Kosala Jayasekara Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here.

Skip is an innovative tool that transforms Swift code for Android with native performance. Evolving from transpiling Swift to Kotlin, it now runs compiled native Swift on Android. In 5 minutes, discover Skip's fundamentals, architecture, and its advantages over React Native and Flutter! Speaker: yamaken Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Immersive Video is a 180-degree video that appears three-dimensional. My team and I, along with several collaborators, captured an Immersive Video of FC Machida Zelvia—a professional soccer team in Japan's J1 League—and hosted a hands-on session exclusively for special members. This project was made possible through the club's support and cooperation. The event was a great success, and we encountered many challenges and learned a great deal through trial and error in the processes of filming, video editing, developing the Swift-based Viewer, and running the session. I'm especially eager to share the in-depth insights we gained from building the Viewer in Swift and the overall experience. It's rare to see professional sports filming projects and Immersive Video technology being showcased at developer conferences, and there are many fascinating insights to be shared from both the video capturing process and the Viewer application development. Speaker: Satoshi Hattori Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

SwiftSyntax is Apple's library for parsing and manipulating Swift code. It can be use for anything from formatting source code (as in swift-format) to generating it (as in Swift Macros). In this talk I'll explain how the SwiftSyntax library works - the range and limitations of its capabilities, and demonstrate some cool use cases that you might not have considered. Speaker: Nick Lockwood Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Ever wondered about simulations of how weather changes or viruses spread in the air? These simulations are built with simple calculations—just addition, subtraction, multiplication, and division! In this talk, we'll use Swift to create a simple simulation and show you how easy it is! Speaker: Ryota Motonishi Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

SwiftUI APIs are inherently declarative, yet many existing Apple platform APIs are designed to be used in a procedural manner. In this session, we'll explore how to design and implement SwiftUI-friendly declarative APIs that integrate with procedural frameworks. Using AVFoundation as an example, we will build a photo and video capture app while uncovering best practices for adapting procedural APIs to the declarative paradigm of SwiftUI. Speaker: Yoshimasa Niwa Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

The reason why I'd like to give this talk is because as someone who works as both an iOS/Mac developer and a security researcher, I've learned that there's a lot that the developer community can contribute to security research on Apple's platforms, but most developers think that it's a niche outside their area of expertise. However, most professional security researchers focus at the low level where app developers don't usually have a lot of knowledge. Through my work, I've found quite a few security bugs in Mac and iOS that could be found at the higher level, and those bugs have rewarded me with multiple bug bounty payments from Apple as well as helping improve the security of the operating systems. This talk would be a way to introduce more developers to the practice, with some examples of my past experiences, and encourage them to pursue security research as part of their career. You can read about some of my security research work on my blog. I think this fits well as both an inspirational and technical topic that's not usually covered in developer conferences. Speaker: Gui Rambo Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

In short, this is a story about hacking Genmoji. Genmoji can now be displayed in notifications from iOS18. In this talk, we will reverse engineer Genmoji and display custom emojis in notifications. I'm a third-party app developer for Mastodon. This talk is perfect for me. Speaker: noppe Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Swift's regex engine is an ambitious project aiming to be a superset that encompasses all existing regular expressions. However, as of now, many features, such as lookbehind, remain unimplemented. Contributing to this project can be challenging due to the complexity of the existing codebase. In this talk, we will implement a small regex engine in Swift, focusing on the three fundamental operations: concatenation, alternation, and repetition. We will also explore how to implement a backtracking (VM-based) approach similar to Swift's official regex engine. By understanding this implementation, you'll take the first step toward deciphering Swift's official regex engine and contributing to its development. Speaker: kishikawa katsumi Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Swift is a fantastic general purpose language, which can and has been successfully used beyond its mobile origins, from embedded through server-side systems. One of Swift's unique strengths is its powerful native language interoperability with C and C++. Recently, the Swift project started work on integrating improved Swift/Java interoperability with the use of both JNI and the new Foreign Function and Memory APIs introduced in JDK22. In this talk we'll deep dive into the deep integration approach taken between the language runtimes using the FMM APIs and their unique strengths but also challenges. Speaker: Konrad 'ktoso' Malawski Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Java's annotation processing leverages developer productivity by compile-time code generation. Swift can now replicate that innovation with Swift Macros and Swift Syntax. Learn how to express annotation-like features in Swift, automate code, and boost productivity. Let's unlock Swift's potential! Speaker: rockname Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

Curious about how SwiftUI really works under the hood? Join me as we explore the render loop and its impact on performance! We’ll break down the rendering process and uncover techniques to optimise your views and eliminate lag. You’ll walk away with a solid understanding of rendering mechanics that will elevate your interface development skills. Speaker: Pradnya Nikam Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

"Hmm, something looks off..." "Hmm, this interaction is broken..." If you've built UI with SwiftUI, you've probably encountered these issues more often than you'd like. In many cases, the solution involves wrapping UIKit to work around the problem. In this lightning talk, I'll discuss when to use SwiftUI and when to rely on UIKit, breaking it down into eight common patterns. Speaker: ojun Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp

In this talk I'll show you how you can design your app data pipeline in a modular way, and integrate my open source tools to enable easy bug reproduction and faster development workflows. Speaker: Krzysztof Zablocki Developers from all over the world gather for tips and tricks and the latest case studies of development using Swift. Developers from all over the world will gather here. Swift and to showcase our Swift knowledge and skills, and to collaborate with each other, The event will be held for three days from April 9 - 11, 2025! Channel: https://www.youtube.com/@trySwiftConference X: https://twitter.com/tryswiftconf WebSite: https://tryswift.jp