| // 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. |
| |
| // Template: dev/snippets/config/templates/stateless_widget_scaffold.tmpl |
| // |
| // Comment lines marked with "▼▼▼" and "▲▲▲" are used for authoring |
| // of samples, and may be ignored if you are just exploring the sample. |
| |
| // Flutter code sample for InputDecoration.suffixIconConstraints |
| // |
| //*************************************************************************** |
| //* ▼▼▼▼▼▼▼▼ description ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) |
| |
| // This example shows the differences between two `TextField` widgets when |
| // [suffixIconConstraints] is set to the default value and when one is not. |
| // |
| // Note that [isDense] must be set to true to be able to |
| // set the constraints smaller than 48px. |
| // |
| // If null, [BoxConstraints] with a minimum width and height of 48px is |
| // used. |
| |
| //* ▲▲▲▲▲▲▲▲ description ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) |
| //*************************************************************************** |
| |
| import 'package:flutter/material.dart'; |
| |
| void main() => runApp(const MyApp()); |
| |
| /// This is the main application widget. |
| class MyApp extends StatelessWidget { |
| const MyApp({Key? key}) : super(key: key); |
| |
| static const String _title = 'Flutter Code Sample'; |
| |
| @override |
| Widget build(BuildContext context) { |
| return MaterialApp( |
| title: _title, |
| home: Scaffold( |
| appBar: AppBar(title: const Text(_title)), |
| body: const MyStatelessWidget(), |
| ), |
| ); |
| } |
| } |
| |
| /// This is the stateless widget that the main application instantiates. |
| class MyStatelessWidget extends StatelessWidget { |
| const MyStatelessWidget({Key? key}) : super(key: key); |
| |
| @override |
| //******************************************************************** |
| //* ▼▼▼▼▼▼▼▼ code ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) |
| |
| Widget build(BuildContext context) { |
| return Padding( |
| padding: const EdgeInsets.symmetric(horizontal: 8.0), |
| child: Column( |
| mainAxisAlignment: MainAxisAlignment.center, |
| children: const <Widget>[ |
| TextField( |
| decoration: InputDecoration( |
| hintText: 'Normal Icon Constraints', |
| suffixIcon: Icon(Icons.search), |
| ), |
| ), |
| SizedBox(height: 10), |
| TextField( |
| decoration: InputDecoration( |
| isDense: true, |
| hintText: 'Smaller Icon Constraints', |
| suffixIcon: Icon(Icons.search), |
| suffixIconConstraints: BoxConstraints( |
| minHeight: 32, |
| minWidth: 32, |
| ), |
| ), |
| ), |
| ], |
| ), |
| ); |
| } |
| |
| //* ▲▲▲▲▲▲▲▲ code ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) |
| //******************************************************************** |
| |
| } |