普通路由、普通路由传值、 命名路由、命名路由传值

RaisedButton(
  child: Text(‘跳转到分类‘),
  onPressed: () {
    Navigator.of(context).push(
      MaterialPageRoute(
        builder: (context) => SearchPage(title: ‘来了a‘) // import导入的页面, title是传值
      )
    );
  }
)
传值接收的组件要设置

class SearchPage extends StatelessWidget{
  String title = ‘‘;
  SearchPage({this.title});
  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return Scaffold(
      appBar: AppBar(
        title: Text(‘搜索页面‘),
      ),
      body: Text(this.title),
    );
  }
}