viture_kit 0.2.1

Native Dart FFI bindings for the VITURE XR Glasses SDK.

Viture Kit

Native Dart FFI bindings for the VITURE XR Glasses SDK.

Platform Support

Platform	Support
macOS	✅ Supported
iOS	❌ Unsupported
Linux	❌ Unsupported
Android	✅ Supported
Windows	✅ Supported
Web	✅ Supported

API Reference

Core Class: VitureKit

Method / Property	Type	Description
sdkVersion	String	Returns the native SDK version string.
isConnected	bool	Indicates whether a persistent connection to the glasses is currently open.
isHeadTrackingActive	bool	Indicates whether IMU data is currently streaming.
sensorStream	Stream<VitureSensorData>	Broadcast stream delivering raw and parsed orientation updates.
stateStream	Stream<VitureStateEvent>	Broadcast stream delivering hardware changes.
connect({bool setDarwinOpenExclusive = false})	Future<void>	Opens a persistent connection to the glasses, reused by all subsequent calls until disconnect() or dispose() is called. On web, must be called from inside a user-gesture handler (e.g. a button tap).
disconnect()	Future<void>	Closes the persistent connection, stopping head tracking first if active.
getBrightnessLevel({bool setDarwinOpenExclusive = false})	Future<int?>	Reads the current brightness level from the connected device.
setBrightnessLevel(int level, {bool setDarwinOpenExclusive = false})	Future<void>	Sets the brightness level for the connected device.
getVolumeLevel({bool setDarwinOpenExclusive = false})	Future<int?>	Reads the current volume level from the connected device.
setVolumeLevel(int level, {bool setDarwinOpenExclusive = false})	Future<void>	Sets the volume level for the connected device.
startHeadTracking({int imuFrequency = VitureImuFrequency.freq120Hz, bool setDarwinOpenExclusive = false})	Future<HeadTrackingResponse>	Starts receiving IMU data on the shared connection. Returns status, message, and code (-7 if glasses not found, 0 if successful).
releaseHeadTracking()	Future<void>	Stops IMU streaming without closing the underlying connection.
setHeadTrackingEnabled(bool enabled)	Future<void>	Convenience toggle for starting or stopping head tracking.
dispose()	Future<void>	Disconnects the device and closes the sensor and state stream controllers.

Model Class: VitureSensorData

Field	Type	Description
roll, pitch, yaw	double	Device orientation in Euler angles.
quatW, quatX, quatY, quatZ	double	Device orientation as a quaternion.
magX, magY, magZ	double?	Magnetometer axes, populated only on magnetometer-capable devices (Luma / Luma Pro / Beast / Pro 2). null on devices without a magnetometer.
temperature	double?	Sensor temperature reading, populated alongside the magnetometer fields. null when unavailable.
hasMagnetometer	bool	Convenience getter indicating whether magX/magY/magZ are present.
timestamp	int	Timestamp associated with the pose sample.

Model Class: HeadTrackingResponse

Field	Type	Description
status	bool	Indicates success or failure
message	String	Status or error description
code	int	Error code

Model Class: VitureStateEvent

Field	Type	Description
stateId	int	Identifies which hardware setting changed.
value	String	The new numeric level or status.

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Note

For local dev, use flutter run -d chrome --web-header Cross-Origin-Opener-Policy=same-origin --web-header Cross-Origin-Embedder-Policy=require-corp.

Usage Example

import 'dart:async';
import 'package:viture_kit/viture_kit.dart';

Future<void> main() async {
  final viture = VitureKit();

  print('VITURE SDK Version: ${VitureKit.sdkVersion}');

  // 1. Listen to orientation events
  final subscription = viture.sensorStream.listen((VitureSensorData pose) {
    print('Roll: ${pose.roll}, Pitch: ${pose.pitch}, Yaw:${pose.yaw}');
    print('Quat: [${pose.quatW},${pose.quatX}, ${pose.quatY},${pose.quatZ}]');
  });

  // 2. Claim ownership of the IMU
  try {
    final HeadTrackingResponse headTrackingResponse = await viture.startHeadTracking();
    if (headTrackingResponse.status == false || headTrackingResponse.code == -7) {
      print(headTrackingResponse.message);
      return;
    }

    print('Head tracking started successfully.');
  } catch (e) {
    print('Failed to start head tracking: $e');
  }

  final subscription = viture.stateStream.listen((VitureStateEvent event) {
    final stateId = VitureStateId.fromId(event.stateId);
    print('State: $stateId, Value: ${event.value}');
  });

  // 3. Stop tracking and clean up
  await subscription.cancel();
  await viture.releaseHeadTracking();
  await viture.dispose();
  print('Head tracking released.');
}

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Caveat

Important

When the Spacewalker App is open viture_kit will claim ownership of the IMU for head tracking, stopping head tracking on the Spacewalker app.

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Notice: This project was initally created to be used in-house, as such the development is first and foremost aligned with the internal requirements.