How to implement a Firebase-backed multiple-counter app with different state management techniques. Evaluation of their tradeoffs. https://codewithandrea.com/videos/flutter-state-management-setstate-streambuilder-scopedmodel-redux/
A guide to implementing multiple independent navigation stacks with BottomNavigationBar in Flutter. https://codewithandrea.com/articles/multiple-navigators-bottom-navigation-bar/
How to use InheritedWidget to provide scoped access to dependencies within a widget tree, as opposed to constructor dependency injection. https://codewithandrea.com/videos/flutter-scoped-access-inherited-widget/
How to extract business logic from your apps into testable classes, and write unit tests in Flutter. Uses a login demo example to write email & password validation tests. https://codewithandrea.com/videos/flutter-add-unit-tests-to-your-app/
Deep dive into widget tests. Introduces WidgetTester, Finder, matcher objects, and shows how to write tests for a login screen. Includes test mocks, mockito, acceptance criteria. https://codewithandrea.com/videos/flutter-deep-dive-widget-tests-mockito/
How to dock a floating action button in the middle of a BottomAppBar. https://codewithandrea.com/articles/bottom-bar-navigation-with-fab/
Let's see how to use some custom code to add animated overlays and reveal action options from a FAB. https://codewithandrea.com/articles/adding-animated-overlays-to-your-app/
Overview of regular expressions (regex). How to implement a Regex validator in Dart and integrate it with Flutter's TextField widget, so that we can validate user input. https://codewithandrea.com/videos/flutter-input-validation-with-regexp/
Let's see how to load a CSV file into strongly-typed model classes, that can be used to calculate CO2 emissions for flights between two airports. https://codewithandrea.com/articles/flight-co2-calculator/
Let's learn about color gradients, composition, writing reusable UI code, and CupertinoSegmentedControl. https://codewithandrea.com/articles/the-power-of-small-reusable-widgets/
