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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:io';
import 'package:flutter/material.dart';
import 'package:flutter/scheduler.dart' show timeDilation;
void main() {
runApp(
const PlatformViewApp()
);
}
class PlatformViewApp extends StatefulWidget {
const PlatformViewApp({
Key? key,
}) : super(key: key);
@override
PlatformViewAppState createState() => PlatformViewAppState();
}
class PlatformViewAppState extends State<PlatformViewApp> {
@override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData.light(),
title: 'Advanced Layout',
home: const PlatformViewLayout(),
);
}
void toggleAnimationSpeed() {
setState(() {
timeDilation = (timeDilation != 1.0) ? 1.0 : 5.0;
});
}
}
class PlatformViewLayout extends StatelessWidget {
const PlatformViewLayout({ Key? key }) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Platform View Scrolling Layout')),
body: ListView.builder(
key: const Key('platform-views-scroll'), // This key is used by the driver test.
itemCount: 200,
itemBuilder: (BuildContext context, int index) {
return Padding(
padding: const EdgeInsets.all(5.0),
child: Material(
elevation: (index % 5 + 1).toDouble(),
color: Colors.white,
child: Stack(
children: const <Widget> [
DummyPlatformView(),
RotationContainer(),
],
),
),
);
},
),
);
}
}
class DummyPlatformView extends StatelessWidget {
const DummyPlatformView({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
const String viewType = 'benchmarks/platform_views_layout/DummyPlatformView';
late Widget nativeView;
if (Platform.isIOS) {
nativeView = const UiKitView(
viewType: viewType,
);
} else if (Platform.isAndroid) {
nativeView = const AndroidView(
viewType: viewType,
);
} else {
assert(false, 'Invalid platform');
}
return Container(
color: Colors.purple,
height: 200.0,
child: nativeView,
);
}
}
class RotationContainer extends StatefulWidget {
const RotationContainer({Key? key}) : super(key: key);
@override
State<RotationContainer> createState() => _RotationContainerState();
}
class _RotationContainerState extends State<RotationContainer>
with SingleTickerProviderStateMixin {
late AnimationController _rotationController;
@override
void initState() {
super.initState();
_rotationController = AnimationController(
vsync: this,
duration: const Duration(seconds: 1),
value: 1,
);
_rotationController.repeat();
}
@override
Widget build(BuildContext context) {
return RotationTransition(
turns: Tween<double>(begin: 0.0, end: 1.0).animate(_rotationController),
child: Container(
color: Colors.purple,
width: 50.0,
height: 50.0,
),
);
}
}