TextFormField
sample.packages.flutter.lib.src.material.text_form_field.73.
This example shows how to move the focus to the next field when the user presses the SPACE key.
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
static const String _title = 'Flutter Code Sample';
@override
Widget build(BuildContext context) {
return const MaterialApp(
title: _title,
home: MyStatefulWidget(),
);
}
}
class MyStatefulWidget extends StatefulWidget {
const MyStatefulWidget({Key? key}) : super(key: key);
@override
State createState() => _MyStatefulWidgetState();
}
class _MyStatefulWidgetState extends State {
@override
Widget build(BuildContext context) {
return Material(
child: Center(
child: Shortcuts(
shortcuts: const {
// Pressing space in the field will now move to the next field.
SingleActivator(LogicalKeyboardKey.space): NextFocusIntent(),
},
child: FocusTraversalGroup(
child: Form(
autovalidateMode: AutovalidateMode.always,
onChanged: () {
Form.of(primaryFocus!.context!)!.save();
},
child: Wrap(
children: List.generate(5, (int index) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: ConstrainedBox(
constraints: BoxConstraints.tight(const Size(200, 50)),
child: TextFormField(
onSaved: (String? value) {
debugPrint('Value for field $index saved as "$value"');
},
),
),
);
}),
),
),
),
),
),
);
}
}
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