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3a1b04952b
* changed controlsBuilder signature combined all parameters into ControlsDetails class * sample fixes * updates to docstrings * switched to positional argument for stepper.controlsbuilder * Merge branch 'master' into stepper-builder-fix
89 lines
2.7 KiB
Dart
89 lines
2.7 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Template: dev/snippets/config/templates/stateless_widget_scaffold.tmpl
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//
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// Comment lines marked with "▼▼▼" and "▲▲▲" are used for authoring
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// of samples, and may be ignored if you are just exploring the sample.
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// Flutter code sample for Stepper.controlsBuilder
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//
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//***************************************************************************
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//* ▼▼▼▼▼▼▼▼ description ▼▼▼▼▼▼▼▼ (do not modify or remove section marker)
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// Creates a stepper control with custom buttons.
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//* ▲▲▲▲▲▲▲▲ description ▲▲▲▲▲▲▲▲ (do not modify or remove section marker)
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//***************************************************************************
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import 'package:flutter/material.dart';
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void main() => runApp(const MyApp());
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/// This is the main application widget.
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class MyApp extends StatelessWidget {
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const MyApp({Key? key}) : super(key: key);
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static const String _title = 'Flutter Code Sample';
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: _title,
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home: Scaffold(
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appBar: AppBar(title: const Text(_title)),
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body: const MyStatelessWidget(),
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),
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);
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}
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}
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/// This is the stateless widget that the main application instantiates.
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class MyStatelessWidget extends StatelessWidget {
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const MyStatelessWidget({Key? key}) : super(key: key);
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@override
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//********************************************************************
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//* ▼▼▼▼▼▼▼▼ code ▼▼▼▼▼▼▼▼ (do not modify or remove section marker)
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Widget build(BuildContext context) {
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return Stepper(
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controlsBuilder: (BuildContext context, ControlsDetails details) {
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return Row(
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children: <Widget>[
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TextButton(
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onPressed: details.onStepContinue,
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child: const Text('NEXT'),
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),
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TextButton(
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onPressed: details.onStepCancel,
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child: const Text('CANCEL'),
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),
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],
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);
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},
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steps: const <Step>[
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Step(
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title: Text('A'),
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content: SizedBox(
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width: 100.0,
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height: 100.0,
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),
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),
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Step(
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title: Text('B'),
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content: SizedBox(
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width: 100.0,
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height: 100.0,
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),
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),
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],
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);
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}
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//* ▲▲▲▲▲▲▲▲ code ▲▲▲▲▲▲▲▲ (do not modify or remove section marker)
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//********************************************************************
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}
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