factory.java

/**
 * Factory for creating a face tracker to be associated with a new face.  The multiprocessor
 * uses this factory to create face trackers as needed -- one for each individual.
 */
private class GraphicFaceTrackerFactory implements MultiProcessor.Factory<Face> {
	@Override
	public Tracker<Face> create(Face face) {
		return FaceTracker.builder()
				.withCameraType(CameraType.FrontCamera)
				.withPreviewWidth(cameraSource.getPreviewSize().getHeight()) 
				.withPreviewHeight(cameraSource.getPreviewSize().getWidth())
				.withPictureWidth(cameraSource.getPictureSize().getWidth())
				.withPreviewViewWidth(cameraSourcePreview.getWidth())
				.withPreviewViewHeight(cameraSourcePreview.getHeight())
				.withFrame(selfieFrameImg.getLeft(), centralLayout.getTop(), selfieFrameImg.getRight(), centralLayout.getBottom())
				.withListener(new TestFaceTrackerListener())
				.withTrackingLoggingEnabled(graphicOverlay)
				.build();
	}
}