Anatomy of a widget @flutterdev
Anatomy of a widget  @flutterdev
Uploaded February 2026 | Updated September 2026, 2 weeks ago
This video is part 5 of the Dart and Flutter Getting Started tutorial series. Explore the fundamental building blocks of Flutter apps: the Widget!

Start the written tutorial session here! → https://goo.gle/3NUgYSg

Learn how widgets represent every part of the UI, from small visual elements like buttons and text to complex layouts and screens. We explain the difference between `StatelessWidget` and `StatefulWidget` and demonstrate how widgets are composed into a hierarchical tree, creating intuitive and functional user experiences.

Chapters:
0:00 - Introduction: "everything is a widget"
0:28 - What are widgets: Dart objects
0:59 - StatelessWidget explained
1:30 - Widgets as blueprints and persistent objects
1:45 - The `build` method and widget tree
1:58 - Widget composition: from small to large
2:37 - Building an app: one widget at a time

Watch more Dart and Flutter tutorials here → https://goo.gle/FlutterandDart
Subscribe to Flutter → http://goo.gle/FlutterYT

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Anatomy of a widget

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