version_banner 1.0.0-nullsafety.0

A banner that shows the current version or flavour of the app

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:version_banner/version_banner.dart';

void main() {
  bool isDevVersion = true;
  runApp(MyApp(isDevVersion));
}

class MyApp extends StatelessWidget {
  final bool isDevVersion;

  MyApp(this.isDevVersion);

  @override
  Widget build(BuildContext context) {
    var materialApp = MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );

    if (isDevVersion) {
      return VersionBanner(packageExtensions: ["example"], child: materialApp);
    }

    return materialApp;
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);
  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}