Recommended flutter resources

I list several useful resources for Flutter dev.

• Official home page: https://docs.flutter.dev/
• Flutter Layout Cheat Sheet: medium post, snapshot.
• From the same author, Flutter Animation Cheat Sheet: medium post, snapshot, demo.
• Inherited widget in deep (in Japanese, Flutter大学): post, snapshot.
• Flutter gallery: a collection of available widgets, promoted by the Flutter team (notice the domain name).
  Web demo: https://gallery.flutter.dev/
  Github source code (with link to the android/linux/window/macOS demos): https://github.com/flutter/gallery
• Flutter recipe: https://docs.flutter.dev/cookbook
• Google Codelabs: https://codelabs.developers.google.com/?product=flutter

Below are previews of all these resources: