Category: 4. Flutter Architecture

Layers are an important concept of the Flutter framework, which are grouped into multiple categories in terms of complexity and arranged in the top-down approach. The topmost layer is the UI of the application, which is specific to the Android and iOS platforms. The second topmost layer contains all the Flutter native widgets. The next… Continue reading Layers

Flutter widget maintains its state by using a special widget, StatefulWidget. It is always auto re-rendered whenever its internal state is changed. The re-rendering is optimized by calculating the distance between old and new widget UI and render only necessary things that are changes.

It is a widget that provides interaction (how to listen for and respond to) in Flutter using GestureDetector. GestureDector is an invisible widget, which includes tapping, dragging, and scaling interaction of its child widget. We can also use other interactive features into the existing widgets by composing with the GestureDetector widget.

In Flutter, everything is a widget, which is the core concept of this framework. Widget in the Flutter is basically a user interface component that affects and controls the view and interface of the app. It represents an immutable description of part of the user interface and includes graphics, text, shapes, and animations that are… Continue reading Widgets

It contains all the required packages for the basic building blocks of writing a Flutter application. These libraries are written in Dart language.

It is a portable runtime for high-quality mobile apps and primarily based on the C++ language. It implements Flutter core libraries that include animation and graphics, file and network I/O, plugin architecture, accessibility support, and a dart runtime for developing, compiling, and running Flutter applications. It takes Google’s open-source graphics library, Skia, to render low-level graphics.

In this section, we are going to discuss the architecture of the Flutter framework. The Flutter architecture mainly comprises of four components. Flutter Engine Foundation Library Widgets Design Specific Widgets