Getting Bitmap from Custom SurfaceView

I have this code in a class that extends surface view and implements runnable I am able to use the class basically allows you to draw to the canvas using different colors and such. I'm trying to get a method that will allow me to save the image after it is drawn and this is the method. No matter what i do i just get a black image with nothing on it. Any ideas?

I have cache drawing enabled

Objective get a bitmap image from a custom SurfaceView I have exhausted options of looking at some other post on here and didn't find anything to work. Here is hoping that there is recently a new solution to this. Many thanks

public Bitmap getImage() {
            Bitmap bitmap = Bitmap.createBitmap(this.getWidth(),
                    this.getHeight(), Bitmap.Config.ARGB_8888);
            Canvas canvas = new Canvas(bitmap);
            this.draw(canvas);
            return bitmap;
        }