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Flutter's model for widget constraints, sizing, positioning, and how they interact.

Flutter supports three testing types: unit, widget, and integration.

Welcome to Decoding Flutter, where we’ll answer your tough questions like: Why doesn't hot reload work? Or what's going on with this State thing anyways? We'll take your questions and investigate the behind-the-scenes answers and unravel the code that powers…

:fuelpump: A tool to generate Flutter Change Notifiers. - GitHub - piedcipher/flutter-cng: :fuelpump: A tool to generate Flutter Change Notifiers.

A deep dive into Dart language and library changes related to null safety.

You’ve got a great idea for an app, but now you’re not really sure where to start. In this series for beginners we’ll show you how to get started with Flutter and teach you how to build your own Flutter app with explanations, demos, and step-by-step examples.…

Learn more about RotatedBox → http://goo.gle/rotatedbox
Want to add an element to your design that is rotated by increments of 90 degrees? Like this: 🖤 → ❥? Use the RotatedBox widget. Learn how it works, how to set it up, and how it differs from Transform.rotate.…

Today, instead of building something, Filip gives a guided tour of the Flutter SDK. From widget down to Skia, learn more about the inner workings and see what it’s all about.

0:00​ - Introduction
1:49 - Demystifying the code
7:25 - Let’s take a look at…

Create an Invoice PDF Document completely with Flutter and learn how to generate and view this invoice in Flutter.
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Learn how we avoided the state management debate when building the eBay Motors app.

Learn more about ExpansionPanel → http://goo.gle/expansionpanel
Want to create a list of items that expand to show more details? The ExpansionPanel widget will expand when tapped on to show more information, for those times when the details don’t justify…

Get a head start with Flutter Web, points I wish I would have got a hang on before I started. URL routing, bootstrapping, and more…

An in-depth look at the BuildContext class

Why is the checkbox not doing anything when I check it? A widget doesn't change, but the user interface should when it’s interacted with. Learn what state is and how to convert your widget from a stateless one to a stateful one and how it relates to your…

Breaking language boundaries by directly integrating C/C++ code in Flutter apps.

Learn more about scrollbar → https://goo.gle/scrollbar

By default, scrollable widgets in Flutter don't show a scrollbar. However, with Flutter’s scrollbar widget, that all can change! By wrapping scrollbar around any scrollable widget, like ListView, GridView…

Dart Code Metrics is a static code analysis tool that allows you to collect code metrics and provide additional rules for the analyzer.