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."); }, ); } }
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