Forms and Validation in Flutter — Intermediate Tutorial
Four fields, one key, and rules that never import Flutter.
A sign-up form built the way a real one is built: validation as plain Dart functions, a GlobalKey to ask the form whether it is valid, and error messages that stay quiet until the first failed submit.
⏱ Chapters
00:00 What we're building
00:23 The rules
05:13 The form's state
10:07 Four fields
15:14 Running it
🛠 Stack
Flutter · Dart · Material 3
Real, compiling code. Every project in these episodes builds, and anything
measured on screen was measured on camera.
#flutter #dart #fluttertutorial #flutterforms