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This extracts the sample code out from the API doc comments, and places them in separate files on disk, allowing running of the examples locally, testing them, and building of slightly larger examples.
99 lines
3.1 KiB
Dart
99 lines
3.1 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/stateful_widget_material.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 Scaffold.endDrawer
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//
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//***************************************************************************
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//* ▼▼▼▼▼▼▼▼ description ▼▼▼▼▼▼▼▼ (do not modify or remove section marker)
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// To disable the drawer edge swipe, set the
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// [Scaffold.endDrawerEnableOpenDragGesture] to false. Then, use
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// [ScaffoldState.openEndDrawer] to open the drawer and [Navigator.pop] to
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// close it.
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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 const MaterialApp(
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title: _title,
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home: MyStatefulWidget(),
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);
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}
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}
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/// This is the stateful widget that the main application instantiates.
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class MyStatefulWidget extends StatefulWidget {
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const MyStatefulWidget({Key? key}) : super(key: key);
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@override
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State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
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}
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/// This is the private State class that goes with MyStatefulWidget.
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class _MyStatefulWidgetState extends State<MyStatefulWidget> {
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//********************************************************************
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//* ▼▼▼▼▼▼▼▼ code ▼▼▼▼▼▼▼▼ (do not modify or remove section marker)
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final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
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void _openEndDrawer() {
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_scaffoldKey.currentState!.openEndDrawer();
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}
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void _closeEndDrawer() {
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Navigator.of(context).pop();
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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key: _scaffoldKey,
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appBar: AppBar(title: const Text('Drawer Demo')),
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body: Center(
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child: ElevatedButton(
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onPressed: _openEndDrawer,
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child: const Text('Open End Drawer'),
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),
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),
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endDrawer: Drawer(
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child: Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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const Text('This is the Drawer'),
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ElevatedButton(
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onPressed: _closeEndDrawer,
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child: const Text('Close Drawer'),
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),
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],
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),
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),
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),
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// Disable opening the end drawer with a swipe gesture.
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endDrawerEnableOpenDragGesture: false,
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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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