Flutter Tutorial for Beginners: Step by Step Guide

Flutter is an open-source UI software development kit created by Google. It is used to develop applications for Android, iOS, Windows, Mac, Linux, Google Fuchsia and the web. Flutter is a very new framework, and this means that it does not have a big section of the mobile development market yet, but this is changing, and the outlook for the next few years is highly positive.

When choosing a new programming language or framework, it is hugely important to developers and software companies that what they have chosen has certain key aspects that will ensure it is easy to pick up and that it has a bright future. Investing time and money into learning a new solution, and then developing a code base and development processes around that language and framework, is incredibly expensive

Flutter, which will depends on  Dart programming language, these are created by Google, and these are open source, they continue to be backed by Google. This ensures the framework has all the tools it needs to succeed in the community, with support from the Google team, presence at big events such as Google I/O, and investment in continuous improvements in the code base. From the launch of the first stable release during the Flutter Live Event at the end of 2018, the growth of Flutter is evident:

• More than 200 million users of Flutter apps

• More than 50,000 Flutter apps on the Play Store

• Nearly 500,000 developers

• The 18th most popular software repository on GitHub


Flutter is Google's mobile UI framework that can quickly build high-quality native user interfaces on iOS and Android. Flutter works with existing code. Flutter is being used by more and more developers and organizations around the world, and Flutter is completely free and open source . At present, some modules of the company are developed using Flutter

The major components of Flutter include:

Dart platform

Flutter engine

Foundation library

Design-specific widgets


Dart Platform

Flutter apps are written in the Dart language and make use of many of the language's more advanced features. The Dart programming language was first expose by Google at the GOTO conference in 2011, and Dart 1.0 was released at the end of 2013. Initially they viewed it as a replacement for JavaScript (the main web programming language), the uptake of Dart by developers was relatively low

You can refer Dart Language at Dart 


Why did Flutter projects choose dart programming language?

The Flutter main goal was provide high performance and make alternative to existing cross-platform frameworks. To achive this Flutter needs a programming language which allowed to accomplish these goals. Then by features of the Dart they choosen. The following are the features of the dart.

Dart Compilation

Dart is flexible enough to provide different ways of running the code, so Flutter uses Dart ahead of time (AOT) compilation with performance in mind when compiling a release version of the application, and it uses just in time (JIT) compilation

High Performance:

Dart support AOT ( ahead of time)  compilation Flutter doesn't require slow bridge between Non Native Flutter code Native code, because of this flutter perform high speed responsiveness.

Garbage collection

Flutter uses a functional-style flow with short-lived objects, and this means a lot of short-lived allocations. Dart garbage collection works without locks, helping with fast allocation


Technical requirements

  • A PC with a recent Windows version, or a Mac with a recent version of the macOS or Linux operating system
  • An Android/iOS setup. You'll need to set up your Android and iOS environments to build apps
  • A Flutter software development kit (SDK) installed and added to your PATH
  • Physical device/emulator/simulator. In order to try your code, you will need an Android or iOS device. Alternatively, you can also install an Android emulator or iOS simulator
  • Editor Tools: Android Studio/IntelliJ IDEA , or XCode or Visual Studio Code


In this Flutter step by step guide for beginners, we will cover:

  • Setting up Flutter
  • Dart Basics
  • Flutter Basics
  • Widgets
  • Layouts
  • Interactive Widgets
  • Designing an app: Forms, Gestures, and Images
  • Lists
  • Navigation
  • Networking
  • JSON and Serialization
  • State Management