This is a custom build system for creating lightweight Android apps from HTML/JS/CSS projects. It wraps your web content in a native Android WebView and builds a signed APK without using Gradle or Android Studio.

• Minimal Android WebView wrapper
• No need for Java/Kotlin code (template included)
• Uses local HTML, CSS, JS (offline)
• Fully customizable layout and assets
• Generates signed APKs
• Works via simple CLI: create, compile, clean
• Ideal for prototyping or wrapping web UIs as native Android apps

builder/
├── builder.py                # Main build script
├── template/
│   ├── assets/               # HTML/CSS/JS template
│   ├── icons/                # Default launcher icons
│   └── src/                  # Java source for MainActivity
└── samples/
    └── myapp/                # Example project

• Python 3
• Android SDK (build-tools, platform-tools, etc.)
• Java JDK 8+ (tested with JDK 24)
• ADB for installing the app

python3 builder.py create --path samples/myapp --package com.example.myapp 

This generates a new Android project with the default HTML/JS layout.

python3 builder.py compile --path samples/myapp --run

• Compiles Java code
• Converts classes to DEX
• Builds unsigned APK
• Signs the APK
• Installs and runs it on a connected device

python3 builder.py clean --path samples/myapp

Removes temporary build files.

• Modify the HTML, CSS, and JavaScript under assets/
• Java code can be found in src/com/example/myapp/MainActivity.java
• AndroidManifest is auto-generated from project.json

• Final APK is saved as samples/myapp/myapp.signed.apk

MIT License. Build system by DjokerSoft.