Flutter Banner Ribbon Debug Widget Badge

Banner widget is a great thing to inform users about the environment in which the application works. For example, we want to show BETA or TESTFLIGHT ribbon for beta builds, just like the default DEBUG banner warning is displayed when the app is built in debug mode.

Here is the method I’ve used to add BETA badge.

/// Adds banner to the [child] widget.
Widget _wrapWithBanner(Widget child) {
  return Banner(
    child: child,
    location: BannerLocation.topStart,
    message: 'BETA',
    color: Colors.green.withOpacity(0.6),
    textStyle: TextStyle(
        fontWeight: FontWeight.w700, fontSize: 12.0, letterSpacing: 1.0),
    textDirection: TextDirection.ltr,

The usage is as simple as:

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  Widget build(BuildContext context) {
    return _wrapWithBanner(MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      home: MyHomePage(title: 'Flutter Demo Home Page'),

Note I wrap th entire MaterialApp, because I want the banner to be shown on every page of the app.

Swift module compatibility breaks the project.
The banner can be placed on the bottom corners too

That’s it! Happy coding!