/// <inheritdoc />
public override Task <bool> StartTracking(ARMobileStartOptions startOptions)
{
if (!UIDevice.CurrentDevice.CheckSystemVersion(11, 0))
{
throw new NotSupportedException("ARKit requires iOS11 or higher");
}
if (this.arkitSession == null)
{
this.arkitSession = new ARSession();
this.arkitSession.Delegate = new ARKitSessionDelegate(this);
}
else if ((startOptions & ARMobileStartOptions.ResetTracking) != 0 ||
(startOptions & ARMobileStartOptions.RemoveExistingAnchors) != 0)
{
this.ClearAllAnchors();
}
this.arkitSession.Run(this.aRConfiguration, startOptions.ToARKit());
return(Task.FromResult(true));
}
/// <summary>
/// Starts the tracking process
/// </summary>
/// <param name="startOptions">
/// Options affecting how existing session state (if any) transitions to the new configuration.
/// If the session is starting for the first time, this parameter has no effect.
/// </param>
/// <returns>
/// <c>true</c>, if tracking was started, <c>false</c> otherwise.
/// </returns>
public Task <bool> StartTracking(ARMobileStartOptions startOptions)
{
return(this.service?.StartTracking(startOptions));
}
/// <summary>
/// Converts an <see cref="ARMobileStartOptions"/> into a <see cref="ARSessionRunOptions"/>.
/// </summary>
/// <param name="startOptions">The start options value to be converted</param>
/// <returns>Returns an <see cref="ARSessionRunOptions"/></returns>
internal static ARSessionRunOptions ToARKit(this ARMobileStartOptions startOptions)
{
return((ARSessionRunOptions)startOptions);
}
/// <inheritdoc />
public override async Task <bool> StartTracking(ARMobileStartOptions startOptions)
{
bool result = false;
if (this.arCoreSession != null)
{
var hasResetTracking = (startOptions & ARMobileStartOptions.ResetTracking) != 0;
if (hasResetTracking ||
(startOptions & ARMobileStartOptions.RemoveExistingAnchors) != 0)
{
this.ClearAllAnchors();
}
else if (!hasResetTracking)
{
this.arCoreSession.Resume();
result = true;
}
}
if (!result)
{
this.currentFrame?.Dispose();
this.arCoreSession?.Dispose();
this.arConfiguration?.Dispose();
try
{
var adapter = Game.Current.Application.Adapter as WaveEngine.Adapter.Adapter;
var isSupported = await this.initializationTCS.Task;
if (!isSupported)
{
throw new Exception("This device does not support AR");
}
if (ArCoreApk.Instance.RequestInstall(adapter.Activity, true) != ArCoreApk.InstallStatus.Installed)
{
throw new UnavailableArcoreNotInstalledException();
}
// ARCore requires camera permissions to operate. If we did not yet obtain runtime
// permission on Android M and above, now is a good time to ask the user for it.
if (ContextCompat.CheckSelfPermission(adapter.Activity, Android.Manifest.Permission.Camera) != Android.Content.PM.Permission.Granted)
{
ActivityCompat.RequestPermissions(adapter.Activity, new string[] { Android.Manifest.Permission.Camera }, 0);
throw new UnauthorizedAccessException("Camera permission is needed");
}
this.arCoreSession = new Session(adapter.Activity);
// Create default config, check is supported, create session from that config.
this.arConfiguration = new ARConfig(this.arCoreSession);
if (!this.arCoreSession.IsSupported(this.arConfiguration))
{
throw new Exception("This device does not support AR");
}
this.isSupported = true;
this.viewportChanged = true;
if (this.cameraTexture != null)
{
this.arCoreSession.SetCameraTextureName((int)this.cameraTexture.TextureHandle);
}
this.RefreshConfiguration();
this.Reset();
result = true;
}
catch (UnavailableArcoreNotInstalledException)
{
Log.WriteLine(LogPriority.Error, TAG, "Please install ARCore");
}
catch (UnavailableApkTooOldException)
{
Log.WriteLine(LogPriority.Error, TAG, "Please update ARCore");
}
catch (UnavailableSdkTooOldException)
{
Log.WriteLine(LogPriority.Error, TAG, "Please update this app");
}
catch (Java.Lang.Exception ex)
{
Log.WriteLine(LogPriority.Error, TAG, $"This device does not support AR. Error details: {ex.ToString()}");
}
catch (Exception ex)
{
Log.WriteLine(LogPriority.Error, TAG, $"{ex.Message}");
}
}
return(result);
}
/// <summary> /// Starts the tracking process /// </summary> /// <param name="startOptions"> /// Options affecting how existing session state (if any) transitions to the new configuration. /// If the session is starting for the first time, this parameter has no effect. /// </param> /// <returns> /// <c>true</c>, if tracking was started, <c>false</c> otherwise. /// </returns> public abstract Task <bool> StartTracking(ARMobileStartOptions startOptions);