Flutter Tutorial for Beginners in 2025

Cross-platform app development has long been an objective for IT industry because many different operating systems are used by mobile and desktop devices worldwide. Cross-platform apps help your business and team save time and energy by allowing you to write one codebase and publish it to other platforms.

Google’s Flutter framework is one of the newest to hit the cross-platform market. Flutter has grown to now support Windows, Web, macOS, Fuchsia, Linux, and embedded devices, in addition to the Android and iOS mobile platforms it previously exclusively supported.

A very appealing subject to learn for novice and experienced developers, Flutter integrates all these platforms with a speedy Flutter app development cycle, adaptable UI design, and native app performance.

Fascinating! Isn’t it?

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Flutter is gaining immense popularity due to how rapidly and seamlessly you can create apps with it and how simple it is to learn. Regardless of your experience as a web developer, learning Flutter only requires a few well-informed Flutter tutorials for beginners, the best Flutter guides, offline and online learning tools, and a lot of self-learning.

So, thinking of how to build an app from scratch utilizing Flutter app development?

You’ve landed at the right place!

In this article, we’ll show you how to learn Flutter from scratch and provide you with a quick Flutter mobile app development tutorial, but first, you need to know the basics of Flutter!

Let’s start!

What is Flutter?

In May 2017, Google unveiled Flutter, a free and open-source mobile user interface (UI) framework. To put it briefly, it enables you to develop a native mobile application using just one code base. This implies that it is possible to develop two separate applications for iOS and Android using a single programming language and one set of source codes.

When going for the best way to learn Flutter, we must also tell you that Flutter consists of two key components. They are:

• SDK (Software Development Kit) – These provide a wide range of tools that will aid in the development of your application, including the tools that help you compile into the native machine.
• Framework (UI-based Library) – It is a set of reusable UI components (text inputs, buttons, sliders, and so on) that you can modify to suit your needs.

“Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.” - Google, flutter.dev

Flutter app development utilizes a programming language called Dart. Although Google first developed the language in 2011, it has significantly advanced over time.

Dart is a frontend programming language used to build web and mobile applications.

Well! To share some exciting news, Flutter has recently released a new version – Flutter 3.3.

The latest update, Flutter 3.3, includes several frameworks, a rendering layer, enhanced performance, stability, desktop development with C++ Flutter, and other related changes, improvements, and new functionalities.

The upgrade has made Flutter learning and understanding simpler and more efficient.

Why is It Important to Learn Flutter from Scratch?

You must be wondering – Why should we learn Flutter? Or why it’s so important to learn Flutter from scratch?

2021 saw a huge rise in mobile app development, which makes it hard to create a UI that is both expressive and flexible. It's also important to learn Flutter to speed up the development process.

If these aren’t sufficient arguments, consider the following readings to see why you should learn Flutter:

1. No Need to Rebuild – Developers can inspect changes to the code as soon as they are saved by using hot reload.

2. Creative Designing – You can utilize 2-dimension flare to create countless animations.

3. Single Codebase – Dart programming language uses a single piece of code for the frontend and backend parts.

4. Best Community and Support – The Flutter team and community support new learners and are pretty helpful.

5. IDE Support – It supports various IDEs, including VS Code, Android Studio, etc.

6. No Cross-Platform Issues – Since Flutter is ahead-of-time compiled, it adheres to the write-once principle and provides native code experience.

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What Makes Flutter Unique?

Flutter App Development differs from other frameworks in that it utilizes its excellent performance and highly efficient rendering engine to draw widgets rather than WebView or the OEM widgets that came with the device. In the dart programming language, you can implement most of its systems, including gestures, animations, Flutter DevTools, and widgets.

This makes it simple for developers to read, alter, replace, or remove objects. It also provides the system’s developers with excellent control. Moreover, its direct control over core elements enables highly customized and performant app experiences.

What are the Key Features of Flutter?

With the wealth of material design and widgets, Flutter offers quick and easy ways to start creating appealing mobile and desktop apps.

Here, we’ll go over the key attributes of Flutter architecture for creating a mobile framework:

1. Cross-Platform Functionality – The functionality enables Flutter to run on various platforms, write code only once, and maintain it. It helps developers save time, money, and effort.

2. Available SDKs and Native Features – Through the utilization of platform APIs, third-party integration, and native code from Flutter, these features make the process of developing apps simple and enjoyable.

3. Widgets – Widgets from the Flutter framework may provide specialized designs that can be customized.

4. Open-Source Platform – The open-source Flutter framework is free to use when creating mobile applications.

5. Hot Reload – When the developer makes changes to the code, hot reload allows users to view those changes immediately. It denotes updates that are instantly apparent within the app itself.

6. Minimalistic Code – The Flutter application is created using Dart programming language, which utilizes JIT and AOT compilation techniques to speed up operational activities, start-ups, and performance.

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Advantages of Flutter

Before we provide you with the resources to learn Flutter: it’s crucial to understand why one would choose Flutter. Flutter satisfies the unique needs and specifications for creating a mobile application. It also provides several benefits, including the following:

1. When compared to other mobile app development frameworks, Flutter offers a scrolling experience that is more fluent and intuitive, with fewer hitches and cutbacks. Thus, it eventually speeds up the performance of applications.

2. Because of the different features of Flutter, design-centric widgets, high-end programming tools, and powerful APIs, it offers a fantastic user interface.

3. Since it can be developed quickly and comes with cross-platform functionality, it is appropriate for MVP (Minimum Viable Product) apps.

4. The hot reload functionality makes the process of developing an app incredibly quick. The functionality enables us to modify or update the code, which is immediately reflected when changes are done.

5. According to the best Flutter tutorial for beginners, testing takes less time and effort when developing apps with Flutter. As far as we know, Flutter apps are cross-platform. Thus, testers don’t always need to run the same series of tests for the same app on several platforms.

6. Similar to the reactive framework, it eliminates the requirement for manual UI content updates by developers

7. Flutter’s comprehensive SDK or API benefits with a flexible and intuitive development environment for creating incredible apps.

Now, let’s move forward to learn Flutter, starting with a bit of the technical part of the Flutter tutorial. From this section, we’ll also learn how to build an app from scratch with the help of Flutter development.

Pre-Requisites to Learn Flutter

You must be familiar with the following before you can begin to learn Flutter and start building your first Flutter app. If you don’t understand any of the following, it’s best to learn them first before moving on to Flutter’s journey:

• Understanding OOPS Concepts – It’s crucial to understand them completely because OOPS concepts are the foundation of languages like Java and C++.
• C++/ Java Knowledge – Knowing detailed concepts of C++ and Java is not compulsory, but it can prove to be a benefit.
• Knowing Native Android Development – The ability to create finely detailed applications requires knowledge of native Android development. To help you with Android development, you can also read posts on the best tips for enhancing Android app performance.
• Learning Dart Programming – Before you learn Flutter, you must be familiar with Dart programming. However, there’s nothing to worry about because Dart is easy and simple to learn, as it is Google’s general-purpose programming language.

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How to Start Learning Flutter?

It will be a fantastic idea to start learning Flutter right away.

HOW, though, is the question.

Don’t worry! You can learn Flutter app development from scratch with the help of various resources and Flutter guides that are readily available on the market. However, we understand that these online resources and information can sometimes be overwhelming. Therefore, choose authentic resources at all times.

Also, the official Flutter website has a tonne of Flutter documentation, but we advise using other authentic resources as well for greater depth and knowledge.

You can choose from online tutorials, Flutter guides, books, and documentation. For example, you can find an online Flutter tutorial for beginners with a step-by-step process.

The samples, demos, and examples posted by the Flutter community on GitHub can help you get started in learning Flutter from scratch or improve your knowledge of the Flutter framework.

But okay, we get it!

So, you have found the best resources or Flutter guide; however, where do you even begin?

Well then, let’s get started right now!

Let’s set up the Flutter environment quickly and build a basic and simple Flutter app with the best Flutter mobile app tutorial.

Developing a Simple Flutter App

This section will cover a very simple yet best Flutter tutorial for beginners to understand how to build the Flutter app.

• Flutter Installation

The first thing you need is SDL, or Software Development Kit, a collection of software tools that can be utilized in your programming environment.

Additionally, an IDE or Integrated Development Environment can be used for development, making creating and testing software quick and simple. It’s significant to know that there are two well-known IDEs. They are:

1. VS Code – It has all the qualities you desire in an IDE, including being light and quick. This can be your top choice to focus on.

2. Android Studio – All you need to do to get started with Android Studio on your device is to set up the SDK and install the Flutter and Dart plugins.

The process of setting up Flutter is simple, and if you want to know about the installation in more detail, you can go through our article on installing Flutter on different devices.

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• Developing a Simple App with Flutter

In this section, we’ll learn how to build an app from scratch while utilizing Flutter development. Let us start by developing a basic Hello World program. We will also learn about Flutter’s structure and key methods with this program.

Even though the app is too basic to be real, it gets things off to a strong start.

So, let’s begin!

To start a new Flutter project, you just need to type:

$ Flutter create proj_hello_world

The following structure will be used to develop the project:

proj_hello_world

Understand the different syntax for different purposes:

• android – To create Android applications. Any implementation made specifically for Android will be stored in this subdirectory.
• assets – It is a place to keep data files, pictures, etc.
• ios – It is used to produce the iOS application. Inside this folder will be any iOS-specific implementations.
• Lib – Main. Dart, the primary file, is one of the key code files created here.
• Test – It is used to conduct unit testing.

It requires the file ‘main.dart’ for any basic program. Web developers then remove the existing code from the files before writing new code. We’ll also do the same thing here!

Bringing in the ‘Material’ package is the first crucial step. It is employed to incorporate UI elements.

import 'package:flutter/material.dart';

Just like many other languages, execution begins with the main method. The runApp() method, which invokes the code to be executed, should be included in the main method.

void main() => runApp(new HelloWorldApp());

Widgets are all that the code has to run. Do not forget that the widgets are the primary focus of Flutter.

You must be wondering- What is the deal with the widget?

If you didn’t know it already, a widget could be anything that controls the display, such as a list, input box, button, card view, table, or other objects. Thus, your entire Flutter program comprises many widgets that combine to provide a magnificent user interface.

As mentioned above, you should inherit the widget class in every class you build. We only need a widget that doesn’t need to save any state- a stateless widget- because all application will do is print ‘Hello, World!’ A building method ought to be present in a stateless widget.

The ‘Center’ widget runs the elements, while the ‘MaterialApp’ is the widget wrapper, one of which is made of the material. A widget for a ‘Text’ field was added with the text. In addition to the visible properties (home and child), numerous more attributes manage the complete user interface, such as styling, location, and decoration.

Well, now let’s combine all the code:

Run this command after that:

$flutter run

Congratulations!

Your first Flutter application was just created.

But is it worth creating an application with Flutter? Well, a big YES! However, you can read our post and understand why Flutter is the right choice for any organization.

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ConclusionWell, now, what do you think of Flutter? Will you learn Flutter right away, or will you start learning it next year? We hope that this article interests and encourages you to learn Flutter.Flutter is a great cross-platform technology for Android and iOS. It is simple, straightforward, cost-effective, and extremely productive. It also has a wealth of experience. However, learning the Flutter language and its structure requires determination and patience.Flutter offers a fresh approach to creating cross-platform applications restricted by past technologies. It also makes it simple to create programs that can easily target different platforms.Moreover, suppose you’re already into mobile app development and have some knowledge of Flutter. In that case, you can also get acquainted with a reputable Flutter app development company, like Radixweb, to help you develop next-gen mobile applications.You must be thinking- Why just Radixweb?Flutter apps developed by Radixweb offer a digital experience that transcends platforms. Our Flutter developers create flawless native apps for Android, iOS, and different cross-platforms. As one of the top Flutter development companies, we are skilled at converting Flutter designs into engaging experiences with quicker development times and exclusive features.Contact our experts right away!