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【Flutter】開発中のSlow Modeバナーを非表示にする

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Flutterアプリで開発中にアプリの右上に表示されている"Slow Mode"バナーを非表示にする方法です。



MaterialApp の中で debugShowCheckedModeBannerfalse にする。


  • Flutter 0.1.5
  • Dart 2.0.0-dev.28.0


class MyApp extends StatelessWidget {
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Welcome to Flutter',
      debugShowCheckedModeBanner: false, // <---- HERE
      home: new Scaffold(
        appBar: new AppBar(
          title: new Text('Welcome to Flutter'),
        body: new Center(
          child: new Text('Hello World'),


How to remove slow mode banner in flutter on android emulator? - Stack Overflow

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