我不是问Webview的事.这是关于Ffltter Web应用程序的.当用户按浏览器内置的后退按钮时，我需要返回到特定的页面.
个
有没有人猜到了？
当我按下后退按钮时，我收到此错误
Error: Assertion failed: org-dartlang-
sdk:///flutter_web_sdk/lib/_engine/engine/history.dart:110:14
_userProvidedRouteName != null
is not true
at Object.throw_ [as throw] (http://localhost:8300/dart_sdk.js:4770:11)
at Object.assertFailed (http://localhost:8300/dart_sdk.js:4721:15)
onWillPop导航到新页面
class webScope extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new WillPopScope(
onWillPop: () async => Navigator.push(context, MaterialPageRoute(builder: (context) => new NewPageWidget())),
child: Scaffold(
appBar: new AppBar(
title: new Text("webScope"),
),
),
);
}
}