The ultimate guide to text fields in Flutter

Modern applications often require user input, and Flutter offers two primary widgets for this purpose: TextField and TextFormField. TextField is suitable for simple input needs, while TextFormField, which includes built-in validation capabilities, is ideal for more complex forms. Both widgets allow customization, including styling with InputDecoration, altering text and cursor colors, adding hint text, and supporting multi-line input. Flutter provides capabilities such as pre-populating text, changing keyboard types based on input, converting text fields to password fields, and restricting input through character limits and validation. TextEditingController is used to manage input values, and input validation is implemented differently in TextField and TextFormField, with the latter utilizing a Form widget and GlobalKey for form-wide validation. These tools allow developers to create flexible and user-friendly input forms in Flutter applications.