What is a Codebase?
A codebase is the entire collection of source code for a software project. It includes all files, scripts, assets, and dependencies required to build and run an application.
In Flutter, the codebase is a single codebase that runs on multiple platforms (Android, iOS, Web, Desktop).
Key Parts of a Flutter Codebase
1️⃣ lib/ Folder – Contains all Dart code.
- main.dart → Entry point of the app.
- screens/ → UI screens.
- widgets/ → Reusable components.
- models/ → Data structures.
- services/ → API and backend calls.
2️⃣ android/ AND ios/ Folders – Native platform-specific code.
3️⃣ pubspec.yaml – Defines dependencies and assets.
4️⃣ assets/ Folder – Stores images, fonts, etc.
5️⃣ test/ Folder – Contains unit and integration tests.
Why is a Single Codebase Important in Flutter?
✅ Write Once, Run Anywhere – Same code for Android, iOS, Web, and Desktop.
✅ Easy Maintenance – Fix bugs or add features in one place.
✅ Consistent UI and Performance – Uses Flutter’s own rendering engine.
Example Flutter Codebase Structure
├── lib/
│ ├── main.dart # App entry point
│ ├── screens/
│ ├── widgets/
│ ├── models/
│ ├── services/
├── android/ # Android-specific code
├── ios/ # iOS-specific code
├── assets/ # Images, fonts, etc.
├── pubspec.yaml # Dependencies and configurations
├── test/ # Test cases
Summary
A codebase is the complete source code of an app.
Flutter has a single codebase for Android, iOS, Web, and Desktop.
Helps in faster development, easier maintenance, and cross-platform consistency.