What is Flutter?

What is Flutter?

Flutter SDK is Google's UI toolkit for crafting beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. We will learn the basics of Flutter: Background, Introduction to Flutter, Need of Flutter, Highlights of Flutter, Language, Editors, Points to remember


This is part one of the “Deep Dive into Flutter” series. In this article, we will learn the basics of Flutter. The following is the ToC of this article.

  • Background
  • Introduction to Flutter
  • Need of Flutter
  • Highlights of Flutter
  • Language
  • Editors
  • Points to remember
  • Conclusion


Flutter is an emerging technology. I started learning this new amazing technology on my own. While learning, I found that it is very easy. Then, I thought others should know more about Flutter. So, this article is mainly for those who do not know _What Flutter is _and are interested to learn more about Flutter.

Introduction to Flutter

Flutter is an open source mobile application development framework to develop native Andriod and iOS mobile applications in a single code. Flutter was introduced by Google. The stable version of Flutter is Flutter 1.0 that was released on December 4, 2018. The *sky *is the first Flutter application which ran in Andriod OS.

Need of Flutter

Since there are many cross-platform mobile app development technologies available these days, why do we need Flutter? The main reason for the introduction of Flutter is that Google is developing a new OS called Fuchsia OS, which is primarily focused to run in all PCs, Laptops, Tablets, and Smartphones. To develop an application for Fuchsia OS, they came with Flutter SDK.

Highlights of Flutter

There are many advantages of Flutter over other mobile SDKs, as described below.

  • Fast Development
  • Expressive UI (Widgets)
  • Native Performance

Fast Development

Flutter has a new feature called _Hot Reload, _which helps developers quickly and easily build UIs and fix bugs by injecting updated source code files into the running Dart Virtual Machine. And then, the Flutter framework automatically rebuilds the widget there, allowing developers to view the effective changes. Don’t worry about widgets, we will learn about these in details in future article.

Expressive UI

In Flutter, everything is a Widget. Developers can design beautiful UIs using built-in libraries. Widgets are built using the framework. The Widget concept in Flutter is inspired by React Components. Everything in Flutter is Widget. Some basic and most commonly used widgets include.

  • Text
  • Row
  • Column
  • Container

We will look more deeply into Widgets in an upcoming article.

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