try! Swift Tokyo App

This is the official app for try! Swift Tokyo 2024/2026.

Features

We've submitted the app to the App Store as MVP, and it's currently under review. Here's a list of features that are currently available and those that are planned for future releases:

• View the schedule
• View the sponsors
• Check your favorite sessions
• Receive notifications for upcoming sessions
• Localize the app in English and Japanese (partially done)
• macOS support
• watchOS support
• tvOS support
• visionOS support
• Android support (via Skip framework)

Requirements

iOS

• Xcode 15.3 and later (Swift 5.10 and later)

Android

• Skip framework
• Android Studio
• JDK 17 or later

Installation

Available on the App Store soon, or you can build the app yourself. See the Getting Started section for more information.

Getting Started

iOS

1. Clone the repository
2. Open trySwiftTokyo.xcworkspace in Xcode
3. Build and run the app

Android (Skip)

The Android version uses Skip to transpile Swift/SwiftUI to Kotlin/Jetpack Compose.

1. Install Skip following the official instructions
2. Navigate to the Android directory:

   cd Android

3. Build the project:

   swift build

4. Run on Android emulator or device:

   cd .build/plugins/outputs/skipstone/AndroidApp/skipstone
   ./gradlew installDebug

Android Features

The Android version includes:

• Schedule viewing (Day 1, Day 2, Day 3)
• Sponsors listing
• Venue information with directions
• About section with organizer information

Note: Some iOS-specific features are not available on Android:

• Live Translation (requires iOS SDK)
• MapKit integration (uses static venue information instead)

Preview the Website

1. Install the Ignite command-line tool by following the instructions at twostraws/Ignite
2. Open trySwiftTokyo.xcworkspace in Xcode
3. Select the Website scheme in Xcode
4. Run the project (⌘+R) and verify the build succeeds in the console
5. Run ignite run --preview from the command line

Contributing

We welcome contributions to the app! Please refer to the Contributing Guidelines for more information.

Code Sharing between iOS and Android

This project demonstrates how Skip enables code sharing between iOS and Android with nearly identical SwiftUI syntax.

Shared Components

The Shared/ module contains UI components that work on both platforms:

• SessionRowView - Session list item
• SessionDetailView - Session detail screen
• SponsorGridView - Sponsor grid layout
• SpeakerAvatarView - Speaker avatar component

Architecture Comparison

Aspect	iOS	Android (Skip)
UI Framework	SwiftUI	SwiftUI → Jetpack Compose
State Management	TCA (@Reducer)	@Observable ViewModel
Navigation	NavigationStack	NavigationStack
Data Models	SharedModels	SharedModels

Example: Identical SwiftUI Code

// This code runs on BOTH iOS and Android
ForEach(conference.schedules, id: \.time) { schedule in
    Text(schedule.time, style: .time)
        .font(.subheadline.bold())

    ForEach(schedule.sessions, id: \.title) { session in
        SessionRowView(session: session)
    }
}

Project Structure

try-swift-tokyo/
├── App/                    # Xcode project wrapper
├── iOS/                    # iOS app (SwiftUI + TCA)
│   └── Sources/
│       ├── AppFeature/
│       ├── ScheduleFeature/
│       ├── SponsorFeature/
│       ├── GuidanceFeature/
│       ├── LiveTranslationFeature/
│       └── trySwiftFeature/
├── Android/                # Android app (Skip)
│   └── Sources/
│       ├── AndroidApp/
│       ├── ScheduleFeature/
│       ├── SponsorFeature/
│       ├── VenueFeature/
│       └── AboutFeature/
├── Shared/                 # Shared UI components (iOS + Android)
│   └── Sources/
│       └── SharedViews/
├── SharedModels/           # Shared data models
├── DataClient/             # Data fetching client
├── Server/                 # Vapor backend
└── Website/                # Ignite static site

History of try! Swift App

The first try! Swift app (a repository named final) was released in 2016. At the time, it was written in Swift 3. Now is a good time for a new app, so We rebuilt it based on TCA and SwiftUI. Please take a look and enjoy. https://github.com/tryswift/trySwiftAppFinal

License

This project is licensed under the MIT License - see the LICENSE file for details.