/// <summary>
/// Gets a reference to the ViewModel and the ArFragment
/// </summary>
protected override void OnElementChanged(ElementChangedEventArgs <Xamarin.Forms.Page> e)
{
try
{
base.OnElementChanged(e);
var activity = this.Context as Activity;
this.viewModel = this.Element.BindingContext as AnchorsViewModel;
// Gets the view and setups the AR fragment
this.view = activity.LayoutInflater.Inflate(Resource.Layout.AnchorsLayout, this, false);
AddView(this.view);
this.arFragment = activity.GetFragmentManager().FindFragmentById(Resource.Id.anchors_fragment) as AnchorsFragment;
if (this.arFragment != null)
{
this.arFragment.ArSceneView.Scene.Update += (_, args) =>
{
// Passes the frame to the viewmodels
// this's needed for the spatial anchors session
this.viewModel.ProcessFrame(this.arFragment.ArSceneView.ArFrame);
};
// Starts the session
this.viewModel.StartSession(this.Context, this.arFragment);
}
}
catch (Exception ex)
{
this.viewModel.ShowMessage("UnableToStartArSession", ex.Message);
}
}
/// <summary>
/// Setup the frame for the sceneview
/// </summary>
public override void ViewDidLoad()
{
base.ViewDidLoad();
this.viewModel = this.Element.BindingContext as AnchorsViewModel;
this.sceneView = new ARSCNView
{
Frame = this.View.Frame,
UserInteractionEnabled = true,
};
this.sceneView.Delegate = new ArSessionDelegate(this.sceneView, this.viewModel);
this.View.AddSubview(this.sceneView);
}
public ArSessionDelegate(ARSCNView sceneView, AnchorsViewModel viewmodel)
{
this.sceneView = sceneView;
this.viewModel = viewmodel;
}
