public void addPossibleResultPoint(ResultPoint point) {
        if (possibleResultPoints.size() < MAX_RESULT_POINTS)
            possibleResultPoints.add(point);
    }
Only call from the UI thread.

@param point a point to draw, relative to the preview frame
zxing-android-embedded/src/com/journeyapps/barcodescanner/ViewfinderView.java