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@ercantomac
Last active July 3, 2022 21:49
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import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
theme: ThemeData(
primarySwatch: Colors.amber,
),
home: const MyHomePage(replace: true),
);
}
}
class SecondRoute extends StatelessWidget {
const SecondRoute({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.redAccent.shade400,
body: Center(
child: TextButton.icon(
onPressed: () {
Navigator.of(context).pop();
},
icon: const Icon(Icons.arrow_back_rounded),
label: const Text('Return to 1st route'),
),
),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.replace}) : super(key: key);
final bool replace;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
Route _createRoute(Widget newRoute) {
return PageRouteBuilder(
pageBuilder: (BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation) {
return Align(
alignment: Alignment.topCenter,
child: SizeTransition(
sizeFactor: Tween<double>(begin: 1.0, end: 0.0)
.animate(CurvedAnimation(parent: secondaryAnimation, curve: Curves.linearToEaseOut)),
axisAlignment: -1.0,
child: newRoute,
),
);
},
transitionDuration: const Duration(milliseconds: 800),
reverseTransitionDuration: const Duration(milliseconds: 800),
transitionsBuilder:
(BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation, Widget child) {
return SlideTransition(
position: Tween<Offset>(begin: const Offset(0.0, 1.0), end: Offset.zero)
.animate(CurvedAnimation(parent: animation, curve: Curves.easeInOutQuart)),
child: child,
);
},
);
}
@override
void initState() {
super.initState();
WidgetsBinding.instance.addPostFrameCallback((Duration timeStamp) {
//THE REASON FOR DOING THIS: MAIN ROUTE HAS TO BE PUSHED WITH THE CUSTOM ROUTE AS WELL, OTHERWISE IT DOESN'T WORK, SO THIS IS THE BEST SOLUTION I CAME UP WITH.
if (widget.replace) {
Navigator.of(context).pushReplacement(_createRoute(const MyHomePage(replace: false)));
}
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.blueAccent.shade400,
body: Center(
child: TextButton.icon(
onPressed: () {
Navigator.of(context).push(_createRoute(const SecondRoute()));
},
icon: const Icon(Icons.arrow_forward_rounded),
label: const Text('Go to 2nd route'),
),
),
);
}
}
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