Flutter is an open source framework from Google that lets you develop beautiful, natively compiled, cross-platform applications for any screen. It lets you deploy and test web apps, desktop apps, and embedded apps from a single code base.
For development, Flutter uses the Dart programming language. Dart was developed by Google and is characterized by its simplicity to learn the programming language quickly. Other positive aspects of Dart are the active community, many available packages and the already included core module as well as a clear syntax.
In this section we will briefly discuss the architecture of Flutter. The MVC pattern is not provided in Flutter. Instead, Flutter is a layered and extensible system that includes a number of independent libraries. It should be noted that no layer of the system has privileged access to the layer below it. In addition, each framework layer has been designed to be optional and interchangeable.
The layer of build architecture that is used to compile flutter apps behind the scenes is the same as other native compilers. Flutter uses so-called widgets. Widgets are classes that contain the basis of the application as well as the partial description of the UI.
During app development, communication takes place with the framework layer, which is implemented in Dart. Below the framework are the engine layer as well as the embedder layer. Usually, these layers are accessed through a Dart API.
Here you can see an illustration of the architecture layers:
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Instructions for installing Flutter can be found here: Flutter install
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Here you can find a manual that will help you to develop your first Flutter application: Flutter Apprentice
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With the following links, you can find all the information you need about Flutter: