Async Widgets Use StreamBuilder & FutureBuilder to handle async data

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Example of StreamBuilder

file_type_flutter main.dart
class DemoApp extends StatelessWidget {
  const DemoApp({ Key? key }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return StreamBuilder<int>(
      stream: Stream.fromIterable([1,2,3,4]),
      builder: (context, snapshot) {
        var count = snapshot.data;

        // Add UI here

        return Text('$count');
      },
    );
  }
}

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