import 'package:flutter/material.dart'; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: HomePage(), ); } } class HomePage extends StatefulWidget { @override _HomePageState createState() => _HomePageState(); } class _HomePageState extends State<HomePage> { @override Widget build(BuildContext context) { return Scaffold( body: Center( child: Text('home page'), ), floatingActionButton: FloatingActionButton( child: Icon(Icons.dialer_sip), onPressed: () { Navigator.of(context).push(SimpleRoute( name: 'aaa', title: 'aaa', builder: (_) { return Scaffold( backgroundColor: Colors.transparent, body: Center( child: Container( padding: EdgeInsets.all(12.0), color: Colors.black, child: Text( 'data', style: TextStyle(color: Colors.white), ), ), ), ); }, )); }, ), ); } } class SimpleRoute extends PageRoute { SimpleRoute({ @required this.name, @required this.title, @required this.builder, }) : super( settings: RouteSettings(name: name), ); final String title; final String name; final WidgetBuilder builder; @override String get barrierLabel => null; @override bool get opaque => false; @override bool get maintainState => true; @override Duration get transitionDuration => Duration(milliseconds: 0); @override Widget buildPage( BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation, ) { return Title( title: title, color: Theme.of(context).primaryColor, child: builder(context), ); } /// 页面切换动画 @override Widget buildTransitions( BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation, Widget child, ) { return FadeTransition( opacity: animation, child: child, ); } @override Color get barrierColor => null; } 来源：博客园
作者：Ajanuw
链接：https://www.cnblogs.com/ajanuw/p/11770671.html