Flutter Web - 无法通过浏览器的后退和前进按钮导航

Question

在 Flutter Web 中，我无法浏览浏览器的后退和前进按钮。它给出了以下错误：

Error: Assertion failed: org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/navigation/history.dart:284:14
_userProvidedRouteName != null
is not true
    at Object.throw_ [as throw] (http://localhost:54382/dart_sdk.js:5344:11)
    at Object.assertFailed (http://localhost:54382/dart_sdk.js:5280:15)
    at _engine.SingleEntryBrowserHistory.new.onPopState (http://localhost:54382/dart_sdk.js:149735:59)
Error: Assertion failed: org-dartlang-sdk:///flutter_web_sdk/lib/_engine/engine/navigation/history.dart:284:14
_userProvidedRouteName != null
is not true
    at Object.throw_ [as throw] (http://localhost:54382/dart_sdk.js:5344:11)
    at Object.assertFailed (http://localhost:54382/dart_sdk.js:5280:15)
    at _engine.SingleEntryBrowserHistory.new.onPopState (http://localhost:54382/dart_sdk.js:149735:59)

Answer 1

如this answer中所述：

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"),
        ),
      ),
    );
  }
}

或查看问题中的其他答案以完全阻止导航。