如何删除flutter应用程序中的慢速模式标记

Flutter run --release

如果要调试并仅隐藏功能区,请设置Material Widget的debugShowcheckedModeBAnner属性

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      debugShowcheckedModeBAnner: false,title: 'Flutter Demo',home: new MyHomePage(title: 'Flutter Demo Home Page'),);
  }
}