watchOS Tutorial

Overview

#

Run the watchOS counter demo with SwiftUI and the C ABI bridge.

Status

#

In Development — minimal counter implementation.

Prerequisites

#

• macOS 13+
• Xcode 15+ (watchOS SDK)
• Zig 0.15+

1. Clone the Repo

#

git clone https://github.com/kotsutsumi/zylix.git
cd zylix

2. Build Zylix Core for watchOS

#

cd core
zig build watchos-sim

This produces core/zig-out/watchos-simulator/libzylix.a.

3. Copy the Library

#

cp core/zig-out/watchos-simulator/libzylix.a platforms/watchos/ZylixWatch/Libraries/

4. Open the Xcode Project

#

cd platforms/watchos
open ZylixWatch.xcodeproj

5. Run

#

Select a watchOS Simulator and run the ZylixWatch target.

6. Confirm State Updates

#

Use + / - / Reset. The counter should update immediately.

Troubleshooting

#

• Build fails: verify libzylix.a exists in ZylixWatch/Libraries/.
• Simulator missing: install watchOS runtimes in Xcode settings.

Key Files

#

• platforms/watchos/ZylixWatch/Sources/ContentView.swift
• platforms/watchos/ZylixWatch/Sources/ZylixBridge.swift
• platforms/watchos/ZylixWatch/Sources/Zylix-Bridging-Header.h

Next Steps

#

• Platform Guide
• State Management
• Events