Flutter builds apps for mobile, web, and desktop from one codebase. Google develops Flutter. Apps compile to native code. Developers use Flutter for fast performance. Flutter version 3.24 supports iOS, Android, Windows, macOS, Linux, and web platforms as of 2025.
What is Flutter?
Flutter serves as a UI toolkit from Google. Developers build natively compiled apps with Flutter. Flutter uses widgets for all elements. Widgets include buttons, text fields, and layouts. Flutter runs on Dart language.
What language does Flutter use?
Flutter uses Dart language. Dart compiles to native code. Dart handles asynchronous tasks with futures. Developers learn Dart basics like variables, functions, and classes. Dart supports object-oriented programming.
Basics of Dart in Flutter:
- Variables store data, like strings and numbers.
- Functions perform actions, like adding numbers.
- Classes define objects, like buttons.
- Loops repeat code, like for and while.
- Conditionals check values, like if and else.
What are widgets in Flutter?
Widgets form the core building blocks in Flutter. Widgets describe app UI. Stateless widgets stay fixed, like Text. Stateful widgets change, like buttons. Widgets nest inside others.
8 Basic Widgets in Flutter:
- Text shows strings.
- Row arranges children horizontally.
- Column arranges children vertically.
- Container adds padding and borders.
- ElevatedButton triggers actions.
- Image loads pictures.
- Scaffold provides app structure.
- AppBar adds top navigation.
| Widget | Purpose | Example Use |
|---|---|---|
| Text | Displays text | Shows labels |
| Row | Horizontal layout | Aligns icons |
| Column | Vertical layout | Stacks fields |
| Container | Wraps content | Adds margins |
| ElevatedButton | Clickable button | Submits forms |
| Image | Shows images | Loads logos |
| Scaffold | Basic screen | Holds body |
| AppBar | Top bar | Adds titles |
How to install Flutter? Install Flutter by downloading the SDK from flutter.dev. Set up requires Flutter SDK, Android Studio for mobile, and Chrome for web. Add Flutter to PATH variable. Run flutter doctor command to check setup.
Steps to Install Flutter:
- Download Flutter SDK zip file.
- Extract files to a folder.
- Update system PATH with bin folder.
- Install required tools like Git.
- Run flutter doctor in terminal.
What is the first step to create a Flutter app? Create a Flutter app with flutter create command. Command generates project folder. Folder includes lib/main.dart file. Run app with flutter run command.
Steps to Build First Flutter App:
- Open terminal.
- Run flutter create my_app.
- Change to my_app directory.
- Edit main.dart file.
- Run flutter run.
Flutter creates apps that run on multiple platforms.
What are stateful and stateless widgets? Stateful widgets manage changes, stateless widgets stay constant. Stateful widgets use setState to update UI. Stateless widgets rebuild on parent changes.
Comparison of Stateful and Stateless Widgets:
- Stateful: Handles user input, like counters.
- Stateless: Shows fixed data, like titles.
People Also Ask:
What is Dart?
Dart serves as a programming language for Flutter apps.
What is a widget?
Widget acts as a UI element in Flutter. What platforms does Flutter support? Flutter supports Android, iOS, web, Windows, macOS, and Linux.
How does Flutter differ from React Native?
Flutter compiles to native code, React Native uses JavaScript bridge.
Featured Snippet: Flutter is Google’s open-source UI toolkit for building natively compiled apps across mobile, web, and desktop from a single codebase using Dart and widgets.
Developers improve skills with Flutter codelabs on docs.flutter.dev. Flutter handles layouts with Row and Column widgets. Apps deploy to stores like Google Play and App Store. Flutter updates add features like better web support in 2025.
For more information Click this https://docs.flutter.dev/get-started/fundamentals