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Zylix
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Android Tutorial

·1 min
Author
Zylix Team
Build once, run natively on 6 platforms
Table of Contents

Overview
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Build the Zylix demo app with Jetpack Compose and JNI on Android.

Prerequisites
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  • Android Studio
  • Android SDK (API 26+)
  • Android NDK r25+

1. Clone the Repo
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git clone https://github.com/kotsutsumi/zylix.git
cd zylix

2. Build the Zig Core (Android ABIs)
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cd core
zig build android -Doptimize=ReleaseFast

3. Copy the Libraries
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cp zig-out/android/arm64-v8a/libzylix.so ../platforms/android/zylix-android/src/main/jniLibs/arm64-v8a/
cp zig-out/android/armeabi-v7a/libzylix.so ../platforms/android/zylix-android/src/main/jniLibs/armeabi-v7a/
cp zig-out/android/x86_64/libzylix.so ../platforms/android/zylix-android/src/main/jniLibs/x86_64/
cp zig-out/android/x86/libzylix.so ../platforms/android/zylix-android/src/main/jniLibs/x86/

4. Build and Run
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cd ../platforms/android
./gradlew installDebug

5. Confirm State Updates
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Open the app and use the counter controls. State updates should be immediate.

Key files:

  • platforms/android/app/src/main/java/com/zylix/app/ZylixBridge.kt (JNI bridge)
  • platforms/android/app/src/main/java/com/zylix/app/ui/CounterScreen.kt (Compose UI)

Troubleshooting
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  • Missing .so: confirm core/zig-out/android/ outputs exist.
  • NDK not found: set ANDROID_NDK_HOME or install via SDK Manager.

Next Steps
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