A Plane-Geometry Android App (CLI-friendly)

A simple Android app built for educational purposes. It calculates the area and perimeter of basic 2D shapes, squares, rectangles, and triangles.

This project is designed to be built, run, and documented entirely from the command line: no Android Studio required.

Features

• ✍️ Simple UI defined in XML layouts
• ⚙️ CLI workflow for build, install, run, and screenshot capture via scripts
• 📸 Auto-screenshot source code using carbon-now-cli

Project Structure

Only the folders relevant to day-to-day work are shown below.

app/
├── src/
│ └── main/
│ ├── java/ # Source code (.kt / .java)
│ ├── res/ # Layouts, Drawables, etc.
│ └── AndroidManifest.xml
├── build.gradle # App-level Gradle file
gradle/
├── wrapper/ # Gradle wrapper
gradlew, gradlew\.bat # Wrapper scripts
build.gradle # Root-level Gradle
settings.gradle

CLI Workflow

Build APK

./gradlew assembleDebug

Install to emulator or device

adb install -r app/build/outputs/apk/debug/app-debug.apk

Run the app

adb shell monkey -p com.ubl.tugas_mp -c android.intent.category.LAUNCHER 1

Uninstall the app

adb uninstall com.ubl.tugas_mp

Capturing Code Screenshots

1. Install the CLI tool

npm install -g carbon-now-cli

2. Run the helper script

./generate_screenshots.sh

The script will:

• Copy all .java, .kt, and .xml files into screenshots/
• Generate syntax-highlighted PNG screenshots from the .kt and .java sources

Output structure

Once the script finishes, you’ll find:

screenshots/
├── com/ubl/tugas_mp/MainActivity.kt
├── com/ubl/tugas_mp/MainActivity.png
└── res/layout/activity_main.xml

Author

Field	Value
Name	Aris Jirat Kurniawan
Student ID	2311510438
University	Information Technology, Jakarta
Course	Mobile Programming

Next Steps

A few possible directions for this project:

• Add custom CLI commands like make run or make screenshot
• Wrap the workflow into a Makefile or shell alias helpers
• Generate a .zip or .tar.gz archive ready for submission