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// 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 [OverlayPortal].
void main() => runApp(const OverlayPortalExampleApp());
class OverlayPortalExampleApp extends StatelessWidget {
const OverlayPortalExampleApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: const Text('OverlayPortal Example')),
body: const Center(child: ClickableTooltipWidget()),
),
);
}
}
class ClickableTooltipWidget extends StatefulWidget {
const ClickableTooltipWidget({super.key});
@override
State<StatefulWidget> createState() => ClickableTooltipWidgetState();
}
class ClickableTooltipWidgetState extends State<ClickableTooltipWidget> {
final OverlayPortalController _tooltipController = OverlayPortalController();
@override
Widget build(BuildContext context) {
return TextButton(
onPressed: _tooltipController.toggle,
child: DefaultTextStyle(
style: DefaultTextStyle.of(context).style.copyWith(fontSize: 50),
child: OverlayPortal(
controller: _tooltipController,
overlayChildBuilder: (BuildContext context) {
return const Positioned(
right: 50,
bottom: 50,
child: ColoredBox(
color: Colors.amberAccent,
child: Text('tooltip'),
),
);
},
child: const Text('Press to show/hide tooltip'),
),
),
);
}
}