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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 'dart:async';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
void main() {
runApp(const PlatformView());
}
class PlatformView extends StatelessWidget {
const PlatformView({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Platform View',
theme: ThemeData(
primarySwatch: Colors.grey,
),
home: const MyHomePage(title: 'Platform View'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
static const MethodChannel _methodChannel =
MethodChannel('samples.flutter.io/platform_view');
int _counter = 0;
void _incrementCounter() {
setState(() {
_counter++;
});
}
static Widget get _buttonText {
switch (defaultTargetPlatform) {
case TargetPlatform.android:
return const Text('Continue in Android view');
case TargetPlatform.iOS:
return const Text('Continue in iOS view');
case TargetPlatform.windows:
return const Text('Continue in Windows view');
case TargetPlatform.macOS:
return const Text('Continue in macOS view');
case TargetPlatform.linux:
return const Text('Continue in Linux view');
case TargetPlatform.fuchsia:
throw UnimplementedError('Platform not yet implemented');
}
}
Future<void> _launchPlatformCount() async {
final int? platformCounter =
await _methodChannel.invokeMethod('switchView', _counter);
setState(() {
_counter = platformCounter!;
});
}
@override
Widget build(BuildContext context) => Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Expanded(
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'Button tapped $_counter time${ _counter == 1 ? '' : 's' }.',
style: const TextStyle(fontSize: 17.0),
),
Padding(
padding: const EdgeInsets.all(18.0),
child: ElevatedButton(
onPressed: _launchPlatformCount,
child: _buttonText,
),
),
],
),
),
),
Container(
padding: const EdgeInsets.only(bottom: 15.0, left: 5.0),
child: Row(
children: <Widget>[
Image.asset('assets/flutter-mark-square-64.png', scale: 1.5),
const Text(
'Flutter',
style: TextStyle(fontSize: 30.0),
),
],
),
),
],
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
),
);
}