Chris Trott
@twocentstudios
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iOS engineer, musician, artist. Currently working on Eki Live, a train tracking iOS app for Tokyo. Previously Cookpad, Timehop. @[email protected]
Tokyo-to, Japan
Joined March 2011
New blog post: You Are a Frameworks Engineer at Big Tech Corp https://t.co/yurpsyz4XC
twocentstudios.com
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New blog post: SwiftUI Group Still(?) Considered Harmful https://t.co/haFYWPy5H8 In which I take a look at SwiftUI's `Group` container View to try to understand when `onAppear` and `task` break its semantics.
twocentstudios.com
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New blog post: Comprehensible Later: A Read-it-later App for Language Learners https://t.co/Phbe32SJKm
twocentstudios.com
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Is this a thing now? People using AI to generate entire websites full of slop for popular open source repos that don't have official sites? It's got fake blog posts and fake testimonials and everything.
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I’m currently prototyping Eki Bright V2 that uses iOS 26 tab navigation and significantly speeds up nearby station timetable viewing.
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Eki Bright V1.7.3 is live on the App Store. - It’s now built for iOS 26. - The Dynamic Island now collapses long station names more efficiently to ensure the system time is always visible. - I fixed a crasher for stations that have weekday-only schedules.
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New Blog Post: An E-Ink Desk Companion With M5Paper https://t.co/gUJnS5zXc0
twocentstudios.com
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僕のせいだった😩 `.safeAreaInset(edge: .top) { /* empty */ }`を`Map`につけたら、`Map`のズームは落ちる。 AppStoreに新しい版をアップします。
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New Blog Post: Let's Write a Train Tracking Algorithm https://t.co/k5eKHV7sr3 A deconstructed version of my presentation from #iosdc 2025 in English.
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Next up: 2025/09/20 16:15 Track D / 列車行程追跡アルゴリズムを書こう / Chris Trott @twocentstudios #iosdc #d
https://t.co/25vtXmMpjw
fortee.jp
本セッションでは、Live Activityに現在駅と次駅を表示するiPhoneアプリを一緒に作りながら、乗客がアプリを開く必要のない体験を実現します。その道中でCore Location、Core Motion、ActivityKit、SQLiteなどのフレームワークを使います。 1. データ収集 まず、実際のGPSデータを収集する専用iPhoneアプリを実装します。 2. アルゴリズムの...
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