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Flutter™ Application Development

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Introduction to Flutter and Dart Programming Language

Flutter is an open-source UI software development kit created by Google. It is used to develop cross platform applications for AndroidiOSLinuxMacWindowsGoogle Fuchsia, and the web from a single codebase.

The first version of Flutter was known as codename “Sky” and ran on the Android operating system. It was unveiled at the 2015 Dart developer summit, with the stated intent of being able to render consistently at 120 frames per second. During the keynote of Google Developer Days in Shanghai, Google announced Flutter Release Preview 2, which is the last big release before Flutter 1.0. On December 4, 2018, Flutter 1.0 was released at the Flutter Live event, denoting the first “stable” version of the Framework. On December 11, 2019, Flutter 1.12 was released at the Flutter Interactive event.

On May 6, 2020, the Dart software development kit (SDK) in version 2.8 and the Flutter in version 1.17.0 were released, where support was added to the Metal API, improving performance on iOS devices (approximately 50%), new Material widgets, and new network tracking.

On March 3, 2021, Google released Flutter 2 during an online Flutter Engage event. This major update brought official support for web-based applications with new CanvasKit renderer and web specific widgets, early-access desktop application support for WindowsMacOS, and Linux and improved Add-to-App APIs 

Framework architecture

The major components of Flutter include:

  • Dart platform
  • Flutter engine
  • Foundation library
  • Design-specific widgets
  • Flutter Development Tools (DevTools)

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