/**
* Hide the graphic when the corresponding face was not detected. This can happen for
* intermediate frames temporarily (e.g., if the face was momentarily blocked from
* view).
*/
public override void OnMissing(Android.Gms.Vision.Detector.Detections detections)
{
mOverlay.Remove(mFaceGraphic);
}
/**
* Update the position/characteristics of the face within the overlay.
*/
public override void OnUpdate(Android.Gms.Vision.Detector.Detections detections, Java.Lang.Object item)
{
mOverlay.Add(mFaceGraphic);
mFaceGraphic.UpdateFace(item.JavaCast <Android.Gms.Vision.Faces.Face> ());
}
