Flutter, What... Who...

 

Flutter, what is the big deal about it?

Flutter is an open-source UI software development kit created by Google. It is used to develop cross platform applications for Android, iOS, Linux, macOS, Windows, Google Fuchsia, and the web from a single codebase. Flutter. Original author(s) Google.

Framework architecture:
The major components of Flutter include:

Dart platform - Flutter apps are written in the Dart language and make use of many of the language's more advanced features.

Flutter engine (Skia Graphics Engine) - Flutter's engine, written primarily in C++, provides low-level rendering support using Google's Skia graphics library. Additionally, it interfaces with platform-specific SDKs such as those provided by Android and iOS.

Foundation library - The Foundation library, written in Dart, provides basic classes and functions that are used to construct applications using Flutter, such as APIs to communicate with the engine. 

Design-specific widget - The Flutter framework contains two sets of widgets that conform to specific design languages: Material Design widgets implement Google's design language of the same name, and Cupertino widgets implement Apple's iOS Human interface guidelines.

Flutter Development Tools (DevTools)

Widgets:

Flutter uses a variety of widgets to deliver a fully functioning application. These widgets are Flutter's framework architecture. Flutter's Widget Catalog provides a full explanation and API on the framework.                  

- Basics of Widgets in Flutter
Widgets are generally defined in three basic types: Stateful widgets, Stateless widgets, and Inherited widgets. Being the central class hierarchy in the Flutter framework the three basic types of widgets are used in the construction of every Flutter application. Although all the instances of a widget are immutable, the Stateful widget allows the interaction between user and application. By giving access to the method setState, the state can be maintained in separate state objects. Alternatively, the Stateless widget acts as a constant, and before anything displayed can be changed, the widget has to be recreated. The Inherited widget works by allowing another widget to subscribe to the Inherited widget's state allowing the state to be passed down to its children.



To be continued...


Ref wikipedia.org       




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