🌍 world_csc_picker

A lightweight and customizable Flutter widget for cascading Country → State/Province → City selection, using globally updated city data from a local JSON file.

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✨ Features

• 📦 Offline Support – Uses a bundled worldcities.json file, so no API call or internet access is needed
• 🌍 Cascading Dropdowns – Country selection filters available States, which in turn filters Cities
• ⚡ Zero Dependencies – Built using pure Flutter without third-party packages
• 🧩 Flexible Integration – Easily embeds into forms, registration flows, or profile pages
• 🔄 Dynamic Events – Provides real-time callbacks when the country, state, or city changes
• 🎯 Efficient Filtering – Built-in optimization for large datasets (100,000+ cities)

📷 Preview

Here’s how the picker looks in a typical Flutter app:

🚀 Installation

1. Add the package to your pubspec.yaml file:

dependencies:
  world_csc_picker: ^0.0.3