Obtener el valor de un campo de texto

dart

// Define a custom Form widget.
class MyCustomForm extends StatefulWidget {
  const MyCustomForm({super.key});
​
  @override
  State<MyCustomForm> createState() => _MyCustomFormState();
}
​
// Define a corresponding State class.
// This class holds the data related to the Form.
class _MyCustomFormState extends State<MyCustomForm> {
  // Create a text controller and use it to retrieve the current value
  // of the TextField.
  final myController = TextEditingController();
​
  @override
  void dispose() {
    // Clean up the controller when the widget is disposed.
    myController.dispose();
    super.dispose();
  }
​
  @override
  Widget build(BuildContext context) {
    // Fill this out in the next step.
  }
}

content_copy

dart

return TextField(controller: myController);

content_copy

dart

FloatingActionButton(
  // When the user presses the button, show an alert dialog containing
  // the text that the user has entered into the text field.
  onPressed: () {
    showDialog(
      context: context,
      builder: (context) {
        return AlertDialog(
          // Retrieve the text that the user has entered by using the
          // TextEditingController.
          content: Text(myController.text),
        );
      },
    );
  },
  tooltip: 'Show me the value!',
  child: const Icon(Icons.text_fields),
),

content_copy