TextField vs TextFormField | Difference between TextField and TextFormField in Flutter

The difference between a TextField and a TextFormField in Flutter is that a TextField is a simple widget used for taking user inputs, whereas a TextFormField is a more sophisticated widget that is used in forms.

A TextFormField has additional properties such as validation, decoration, and formatting, making it ideal for use in forms where user input needs to be validated.

On the other hand, a TextField is more suited for simple use cases where user input does not need to be validated, and the design of the widget is customizable through its properties.

Example : How to use TextField in Flutter ?

TextField(
  decoration: InputDecoration(
    labelText: 'Enter your name',
  ),
  onChanged: (value) {
    // In this section you will perform operation 
  },
)

Example : how to use TextFormField ?

TextFormField(
  decoration: InputDecoration(
    labelText: 'Enter your name',
  ),
  validator: (value) {
// In this section you can validate like mobile number is 10 digit or not

    if (value!.isEmpty) {
      return 'Please enter your name';
    }
    return null;
  },
  onSaved: (value) {
    // Do something with the value entered by the user
  },
)

There are various parameter through which you can improve or change the UI of TextField and TextFormField

Below ScreenShot of TextField and TextFormField:-

Conclusion: when you need to collect user input as part of a form, and you need to validate and format the input, you should use a TextFormField. If you just need a simple widget to take user input, a TextField is the way to go.

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