Basic Structure of a Flutter App

Flutter is an open-source mobile app development framework created by Google. It allows you to build beautiful and efficient mobile apps on both iOS and Android using a single codebase. In this article, we will explore the basic structure of a Flutter App.

Basic Directory Structure

When you create a new Flutter app, Flutter generates a basic directory structure for your project. Below is the basic directory structure of a Flutter App:

  1. android: This directory contains the source code for the Android part of the app, including AndroidManifest.xml and Java files.

  2. ios: This directory contains the source code for the iOS part of the app, including Swift and Objective-C files.

  3. lib: This directory contains the Dart source code of the app. All the Widgets, functions, and logic of the app reside in this directory.

  4. test: This directory contains the test files for the app.

  5. pubspec.yaml: This YAML file contains information about the app's dependencies and other configurations.

  6. assets: This directory contains resources such as images, videos, or data files used by the app.

Basic Structure of a Flutter App

A Flutter app contains at least one Widget, which is MaterialApp or CupertinoApp (if you want to use iOS-style interface). MaterialApp includes MaterialApp, Scaffold, and one or more pages. Scaffold provides a basic user interface with an app bar and centered content. Pages are built using different Widgets to display specific content.

You are free to customize the structure of your Flutter app to fit the specific requirements of your project.



The structure of a Flutter app is highly flexible and easy to approach and customize. With the basic directories and structure mentioned above, you are ready to start building your first Flutter app.