flutter/examples/api/lib/widgets/editable_text/text_editing_controller.1.dart
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---------

Co-authored-by: Kate Lovett <katelovett@google.com>
Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
2024-12-19 20:06:21 +00:00

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Dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
/// Flutter code sample for [TextEditingController].
void main() {
runApp(const TextEditingControllerExampleApp());
}
class TextEditingControllerExampleApp extends StatelessWidget {
const TextEditingControllerExampleApp({super.key});
@override
Widget build(BuildContext context) {
return const MaterialApp(home: TextEditingControllerExample());
}
}
class TextEditingControllerExample extends StatefulWidget {
const TextEditingControllerExample({super.key});
@override
State<TextEditingControllerExample> createState() => _TextEditingControllerExampleState();
}
class _TextEditingControllerExampleState extends State<TextEditingControllerExample> {
// Create a controller whose initial selection is empty (collapsed) and positioned
// before the text (offset is 0).
final TextEditingController _controller = TextEditingController.fromValue(
const TextEditingValue(text: 'Flutter', selection: TextSelection.collapsed(offset: 0)),
);
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
alignment: Alignment.center,
padding: const EdgeInsets.all(16.0),
child: TextField(
controller: _controller,
autofocus: true,
decoration: const InputDecoration(filled: true),
),
),
);
}
}