Component - Flutter project structure
This UI shows the basic folder and file structure of a Flutter project. It helps beginners understand where to find app code, assets, and configuration files.
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Flutter project structure - UI Render Trace
Widget Tree
FlutterProject ├── android ├── ios ├── lib │ └── main.dart ├── test ├── pubspec.yaml └── README.md
The root FlutterProject contains platform folders (android, ios), the main app code folder (lib) with main.dart, a test folder for tests, and important files like pubspec.yaml for dependencies and README.md for project info.
Render Trace - 7 Steps
Step 1: FlutterProject
Step 2: android folder
Step 3: ios folder
Step 4: lib folder
Step 5: test folder
Step 6: pubspec.yaml file
Step 7: README.md file
State Change - Re-render
Trigger:Adding a new Dart file in lib folder
Before
lib folder contains only main.dart
→
After
lib folder contains main.dart and new Dart file
Re-renders:The lib folder node in the folder tree updates to show the new file
UI Quiz - 3 Questions
Test your understanding
Which folder contains the main Dart code for the Flutter app?
Key Insight
Understanding the Flutter project structure helps you quickly find where to write your app code, add assets, and configure dependencies. The lib folder is your main workspace, while android and ios folders hold platform-specific code. Keeping this structure organized makes app development smoother.