Transition animation curves used by Cupertino are outdated #122247
Description
CupertinoPageRoute animations are now outdated and don't feel native to the user.
Related to the #22862
Expected results:
Transition animation being close to native.
Actual results:
- Transition duration is 100 ms shorter than native iOS.
- Native transition starts slowly and quickly accelerates, rather than being linear from the beginning.
Code sample
import 'package:flutter/cupertino.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return CupertinoApp(
title: 'Cupertino App',
home: CupertinoPageScaffold(
navigationBar: const CupertinoNavigationBar(
middle: Text('Cupertino App Bar'),
),
child: Center(
child: Builder(builder: (context) {
return CupertinoButton(
child: const Text('Next Page'),
onPressed: () {
Navigator.push(
context,
CupertinoPageRoute(builder: (context) => const SecondPage()),
);
},
);
}),
),
),
);
}
}
class SecondPage extends StatelessWidget {
const SecondPage({super.key});
@override
Widget build(BuildContext context) {
return CupertinoPageScaffold(
navigationBar: const CupertinoNavigationBar(
middle: Text('Second Page'),
),
child: Center(
child: CupertinoButton(
child: const Text('Back'),
onPressed: () {
Navigator.pop(context);
},
),
),
);
}
}