flutter有状态组件传值 无状态传值

	import 'package:flutter/material.dart';
	
	class ProductInfor extends StatefulWidget {
	  Map arguments;
	  ProductInfor({Key key,this.arguments}): super(key:key);
	
	  @override
	  _ProductInforState createState() => _ProductInforState(arguments:this.arguments);
	}
	
	class _ProductInforState extends State<ProductInfor> {
	  Map arguments;
	  _ProductInforState({this.arguments});
	  @override
	  Widget build(BuildContext context) {
	    return Scaffold(
	      body: Text('商品详情页面${arguments["id"]}'),
	    );
	  }
	}







import 'package:flutter/material.dart';



class SearchPage extends StatelessWidget {

//  final arguments;
  SearchPage({this.arguments});
  final Map arguments;
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("搜索${arguments!=null?arguments['id']:'0'}"),
      ),
      body: Container(
        child: Text('${arguments!=null?arguments["id"]:"0"}'),
      ),
    );

  }
}