How to center and scale an overlayed drawable icon on a bitmap

Question

I have a bitmap thumbnail for a map and I want to add the a map marker in the center but am struggling to do so. I was able to overlay the two bitmaps but the the one in front is significantly smaller and not centered. Is there a way to center the bitmap and scale it up? This is what it looks like:

I looked at this Android: How to overlay-a-bitmap/draw-over a bitmap? and it helped but the map marker is very small and off centered. Thanks

Answer 1

Update:

I ended up solving it this way. I'll leave my solution for anyone who needs it in the future. Here it goes:

    public static Bitmap overlay(Bitmap bmp1, Bitmap bmp2) {
    Bitmap resizedBitmap = Bitmap.createScaledBitmap(bmp2, 500, 500, false);
    Bitmap bitmapWithOverlay = Bitmap.createBitmap(bmp1.getWidth(), bmp1.getHeight(), bmp1.getConfig());
    Canvas canvas = new Canvas(bitmapWithOverlay);

    canvas.drawBitmap(bmp1, new Matrix(), null);
    canvas.drawBitmap(resizedBitmap, ((bmp1.getWidth()/2)-250), ((bmp1.getHeight()/2)-450), null);

    return bitmapWithOverlay;
}

and here is the process of getting the bitmap from a drawable

        Bitmap icon = BitmapFactory.decodeResource(getActivity().getBaseContext().getResources(),
            R.drawable.your_icon);