Android: What is the default color bitmap of SurfaceView and how to change it?

Question

In my application I have a Translucent Activity with android:windowIsTranslucent is set to true. Activity contains a FrameLayout to which I programmatically add SurfaceView.

By default SurfaceView is drawing bitmap, as per the Activity background Theme, which in my case in Translucent, so SurfaceView is showing transparent bitmap.

For setting background I used SurfaceHolder callbacks in following way:

surfaceView.getHolder().addCallback(new SurfaceHolder.Callback() {
            @Override
            public void surfaceCreated(SurfaceHolder holder) {
                Canvas canvas = holder.lockCanvas();
                if (canvas != null) {
                    canvas.drawRGB(255, 255, 255);
                    holder.unlockCanvasAndPost(canvas);
                }
            }

            @Override
            public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
                Canvas canvas = holder.lockCanvas();
                if (canvas != null) {
                    canvas.drawRGB(255, 255, 255);
                    holder.unlockCanvasAndPost(canvas);
                }
            }

            @Override
            public void surfaceDestroyed(SurfaceHolder holder) {
            }
        });

In surfaceCreated()/surfaceChanged() I am drawing a color.

When the FrameLayout containing SurfaceView gets resized then surfaceDestroyed() callbacks invokes and default Transparent background shows to user until surfaceCreated() invokes again.

So user sees Transparent background for a moment.

My questions is:

1. Is SurfaceView uses Activity window color to draw default bitmap?
2. Can we change the color that SurfaceViewuses to draw default bitmap?