Handling multiple FormField widgets is OK when talking about few values, but when the quantity of data grows, organizing it onscreen, validating everything properly, and providing user feedback promptly can all become harder. That's why Flutter provides the Form widget.
Validating Input (Forms)
Validating user input
Validating user input is one of the main functions of the Form widget. In order to make the data input entered by the user consistent, it is fundamental to check it, as the user probably does not know all the allowed values.
The Form widget, combined with FormField instances, helps the developer to show an appropriate error message if some input values need to be corrected before saving the form data through...