Flutter Route 路由传递参数

有两种方式可以进行路由跳转

第一种方式

1. 在main.dart里面配置routes

const String HOME_SEARCH = "/homeSearch";
const String BUSINESS_CARD = "/businessCard";

  //这里写一个Map集合, Key写成常量
Map<String, WidgetBuilder> routeMap = <String, WidgetBuilder>{
    BUSINESS_CARD : (BuildContext context) => BusinessCardPage(),
    HOME_SEARCH : (BuildContext context) => HomeSearchPage()
 };
 
runApp(MaterialApp(
    home: LaunchPage(),
    routes: routeMap,  //配置routes参数
));

2. 通过pushNamed 传递参数跳转

    Navigator.pushNamed(context, BUSINESS_CARD, arguments: {'title':"张三",'url':'https://m.eqxiu.com/s/BSHD8W9k'});

3. 跳转界面接收参数

  @override
  Widget build(BuildContext context) {
    Map passValue = ModalRoute.of(context).settings.arguments;
    final String url = passValue['url'];
    final String title= passValue['title'];
  
}

第二种方式 跳转并退出当前界面

 Navigator.of(context).pushAndRemoveUntil(
    MaterialPageRoute(builder: (context) {
          return IndexPage();
    }),
   (route) => route == null
);