如何禁用手机后退功能

将小部件包装在其中，

WillPopScope

Future

onWillPop

    @override    Widget build(BuildContext context) {      return WillPopScope(        onWillPop: () => Future.value(false),        child: Scaffold(          appBar: AppBar( title: const Text("Home Page"),          ),          body: Center( child: const Text("Home Page"),          ),        ),      );    }

请参阅此文档：https : //api.flutter.dev/flutter/widgets/WillPopScope-
class.html