geopackage-sdk/src/main/java/mil/nga/geopackage/tiles/features/FeatureTileCanvas.java
private void createBitmapAndCanvas(int layer) {
        layeredBitmap[layer] = Bitmap.createBitmap(tileWidth,
                tileHeight, Bitmap.Config.ARGB_8888);
        layeredCanvas[layer] = new Canvas(layeredBitmap[layer]);
    }
private void createBitmapAndCanvas(int layer) {
        layeredBitmap[layer] = Bitmap.createBitmap(tileWidth,
                tileHeight, Bitmap.Config.ARGB_8888);
        layeredCanvas[layer] = new Canvas(layeredBitmap[layer]);
    }
Create a new empty Bitmap and Canvas

@param layer layer index