(Flutter is beta technology)
A gallery of widgets and behaviors, plus demos and vignettes, all built with Flutter.
Flutter is Google’s multi-platform mobile app SDK for crafting beautiful native experiences on iOS and Android in record time.
This app is open source. Check out the code to see how this app is built: https://github.com/flutter/flutter/tree/master/examples/flutter_gallery
Visit https://flutter.io to learn more.