main.dart

  void main() => runApp(DemoApp());

  class DemoApp extends StatelessWidget {
    const DemoApp();

    @override
    Widget build(BuildContext context) {
      return MaterialApp(
        home: Scaffold(
          appBar: AppBar(
            title: const Text("Using sensors"),
          ),
          body: const Center(
            child: SensorWidget(),
          )
        ),

      );
    }

  }
  

chip_icon.dart

  class ChipWithIcon extends StatelessWidget {
    final Icon icon;
    final String text;
    const ChipWithIcon({
      required this.icon,
      required this.text
    });

    @override
    Widget build(BuildContext context) {
      return Chip(
        avatar: icon,
        padding: const EdgeInsets.fromLTRB(10, 5, 10, 5),
        labelPadding: const EdgeInsets.only(left: 10),
        label: Text(text),
      );
    }
  }
  

accelerometer.dart

  class AccelerometerData extends StatelessWidget {
    static final initialData = AccelerometerEvent(0, 0, 0);
    const AccelerometerData();

    @override
    Widget build(BuildContext context) {
      return StreamBuilder<AccelerometerEvent>(
        stream: accelerometerEvents,
        initialData: initialData,
        builder: (context, accel) {
          final data = accel.data;

          if (data != null) {
            final x = data.x.toStringAsFixed(2);
            final y = data.y.toStringAsFixed(2);
            final z = data.z.toStringAsFixed(2);

            return ChipWithIcon(
                icon: Icon(Icons.drive_eta),
                text: "Accelerometer: $x, $y, $z"
            );
          }

          return const Text("No data to display.");
        },
      );
    }
  }
  

useraccelerometer.dart

  class UserAccelerometerData extends StatelessWidget {
    static final initialData = UserAccelerometerEvent(0, 0, 0);
    const UserAccelerometerData();

    @override
    Widget build(BuildContext context) {
      return StreamBuilder<UserAccelerometerEvent>(
        stream: userAccelerometerEvents,
        initialData: initialData,
        builder: (context, accel) {
          final data = accel.data;

          if (data != null) {
            final x = data.x.toStringAsFixed(2);
            final y = data.y.toStringAsFixed(2);
            final z = data.z.toStringAsFixed(2);

            return ChipWithIcon(
                icon: Icon(Icons.drive_eta),
                text: "User Accelerometer: $x, $y, $z"
            );
          }

          return const Text("No data to display.");
        },
      );
    }
  }
  

gyroscope.dart

  class GyroscopeData extends StatelessWidget {
    static final initialData = GyroscopeEvent(0, 0, 0);
    const GyroscopeData();

    @override
    Widget build(BuildContext context) {
      return StreamBuilder<GyroscopeEvent>(
        stream: gyroscopeEvents,
        initialData: initialData,
        builder: (context, accel) {
          final data = accel.data;

          if (data != null) {
            final x = data.x.toStringAsFixed(2);
            final y = data.y.toStringAsFixed(2);
            final z = data.z.toStringAsFixed(2);

            return ChipWithIcon(
                icon: Icon(Icons.compass_calibration),
                text: "User Accelerometer: $x, $y, $z"
            );
          }

          return const Text("No data to display.");
        },
      );
    }
  }