| // 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), |
| ), |
| ), |
| ); |
| } |
| } |