CaptureActivity.java 文件源码

private static void drawLine(Canvas canvas, Paint paint, ResultPoint a,
                             ResultPoint b, float scaleFactor) {
    if (a != null && b != null) {
        canvas.drawLine(scaleFactor * a.getX(), scaleFactor * a.getY(),
                scaleFactor * b.getX(), scaleFactor * b.getY(), paint);
    }
}