VrActivity serves as the base class inherited by AppSystemActivity, which should be used for creating Spatial Activities instead of directly subclassing VrActivity. This class provides essential functionalities required by all Meta Spatial applications, including:

Lifecycle management: Handles Android lifecycle events.

Input management: Manages user inputs within the virtual environment.

Scene management: Oversees the creation and updating of scenes, helping to organize content and manage rendering.

DataModel setup: Prepares and manages the data models necessary for application functionality.

As a subclass of Android’s Activity, VrActivity includes all standard Android lifecycle callbacks, such as onCreate().

Constructors

Name	Summary
VrActivity	constructor()

Types

Name	Summary
Companion	object Companion

Properties

Name	Summary
componentManager	val componentManager: ComponentManager
scene	var scene: Scene
spatialContext	var spatialContext: SpatialContext
systemManager	val systemManager: SystemManager

Functions

Name	Summary
dispatchGenericMotionEvent	open fun dispatchGenericMotionEvent(event: <Error class: unknown class>): Boolean Dispatches a generic motion event to the appropriate game controller.
dispatchKeyEvent	open fun dispatchKeyEvent(event: <Error class: unknown class>): Boolean Dispatches a key event to the appropriate game controller.
doFrame	open fun doFrame(frameTimeNanos: Long) Called when a new display frame is being rendered.
findFeature	inline fun <T : SpatialFeature> findFeature(): T fun <T : SpatialFeature> findFeature(clazz: KClass<T>): T
getComponentManager	fun getComponentManager(): ComponentManager Returns the singleton component manager for the application.
getDataModel	fun getDataModel(): DataModel Returns the singleton DataModel for the application.
getGameControllerDeviceIds	fun getGameControllerDeviceIds(): Set<Int> Returns a set of device IDs for all connected game controllers.
getSceneObject	fun getSceneObject(): Scene Returns the singleton scene object for the application.
getSystemManager	fun getSystemManager(): SystemManager Returns the singleton system manager for the application.
loadLibrary	open fun loadLibrary(name: String) Loads a native C++ library. This method should be called in onCreate().
onCreate	open fun onCreate(savedInstanceState: <Error class: unknown class>?) Called when the VRActivity is first created. This method creates the necessary building blocks for a Spatial application. It initializes the VrActivity, including loading the Meta Spatial SDK library, registering game controller management, creating a new spatial instance, and initializing the SpatialFeature manager.
onDestroy	open fun onDestroy() Called when the app is destroyed. VrActivity::onDestroy will clean up all the resources and trigger garbage collection. If you override this method, be sure to call super.onDestroy().
onHMDMounted	open fun onHMDMounted()
onHMDUnmounted	open fun onHMDUnmounted()
onPause	open fun onPause() Called as part of the activity lifecycle when an activity is going into the background, but has not yet been killed. The counterpart to onResume(). If you override this method, be sure to call super.onPause().
onPostResume	open fun onPostResume() Called after activity resume is complete. If you override this method, be sure to call super.onPostResume().
onRecenter	open fun onRecenter() This hook is called when the VRActivity is recentered.
onResume	open fun onResume() Called when the activity will start interacting with the user. If you override this method, be sure to call super.onResume()
onSceneReady	open fun onSceneReady() This hook is called on the first onResume(), after the scene is loaded in onCreate(). It will invoke all the onSceneReady() hooks of the registered SpatialFeatures.
onSceneTick	open fun onSceneTick() Called every tick in the application to update the scene.
onStart	open fun onStart() Called when the activity is becoming visible to the user. If you override this method, be sure to call super.onStart().
onStop	open fun onStop() Called when the app is no longer visible to the user. You will next receive either onRestart(), onDestroy(), or nothing, depending on later user activity. If you override this method, be sure to call super.onStop().
onVRPause	open fun onVRPause() This hook is called when the VRActivity switches from immersive to non-immersive mode. It will invoke all the onVRPause() hooks of the registered SpatialFeatures.
onVRReady	open fun onVRReady() This hook is called when the immersive Spatial application is first loaded or is changed from 2D mode to immersive (VR) mode. It will invoke all the onVRReady() hooks of the registered SpatialFeatures.
pinGameController	fun pinGameController(deviceId: Int, func: (<Error class: unknown class>?, <Error class: unknown class>?) -> Unit) Pins a game controller with the given device ID and associates it with the given function.
registerFeatures	open fun registerFeatures(): List<SpatialFeature> Override this method to register your own SpatialFeatures. This is called in onCreate().
registerRequiredOpenXRExtensions	open fun registerRequiredOpenXRExtensions(): List<String>
registerSystemFeatures	open fun registerSystemFeatures(): List<SpatialFeature>
runOnMainThread	fun runOnMainThread(runnable: Runnable) This method provides a way to run a Runnable on the activity’s main thread.
setBaseHref	open fun setBaseHref(baseHref: String) Sets the base href for the application.
tryFindFeature	inline fun <T : SpatialFeature> tryFindFeature(): T? fun <T : SpatialFeature> tryFindFeature(clazz: KClass<T>): T?
unpinGameController	fun unpinGameController(deviceId: Int) Unpins a game controller with the given device ID.
useVolumes	open fun useVolumes(): Boolean