[移动开发]Flutter 命名路由传值

1 MaterialApp 注册路由表

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(  // **切记不能在MaterialApp  相关的Widget 中执行跳转**
      home: TowPage(),
      theme: ThemeData(primaryColor: Colors.blue),
      //注册路由表
      routes: {
        "intentPage": (
          BuildContext context,
        ) =>
            IntentPage(),
      },
    );
  }
} 
## 2  页面执行跳转   携带参数
class TowPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('132'),
      ),
      drawer: Drawer(
        child: Text('123'),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          Navigator.pushNamed(context, 'intentPage', arguments: {'title':'参数'});
        },
        child: Text('跳转'),
      ),
    );
  }
}
## 3 页面接受参数
class IntentPage extends StatelessWidget {
  var data;
  @override
  Widget build(BuildContext context) {
    data = ModalRoute.of(context)!.settings.arguments;
    return Scaffold(
      appBar: AppBar(
        title: Text(data['title']),
      ),
      body: Text('第二页'),
    );
  }
}