Chapter 49 — Buttons, Forms, and Validation

Level: intermediate Estimated duration: 10 h Prerequisites: chapters 43 to 48 (installation, widgets, setState, layouts, text, lists); chapters 07, 12, and 13 of PART 1A (functions, null safety, exceptions, and int.tryParse) What you will be able to do by the end: build a complete form validated field by field, with the right keyboard, error messages, user feedback, and clean submission.

49.0 — Chapter Objectives

By the end of this chapter, you will be able to: