geopackage-sdk/src/main/java/mil/nga/geopackage/tiles/user/TileDao.java
public BoundingBox getBoundingBox(long zoomLevel) {
        BoundingBox boundingBox = null;
        TileMatrix tileMatrix = getTileMatrix(zoomLevel);
        if (tileMatrix != null) {
            TileGrid tileGrid = queryForTileGrid(zoomLevel);
            if (tileGrid != null) {
                BoundingBox matrixSetBoundingBox = getBoundingBox();
                boundingBox = TileBoundingBoxUtils.getBoundingBox(
                        matrixSetBoundingBox, tileMatrix, tileGrid);
            }

        }
        return boundingBox;
    }
public BoundingBox getBoundingBox(long zoomLevel) {
        BoundingBox boundingBox = null;
        TileMatrix tileMatrix = getTileMatrix(zoomLevel);
        if (tileMatrix != null) {
            TileGrid tileGrid = queryForTileGrid(zoomLevel);
            if (tileGrid != null) {
                BoundingBox matrixSetBoundingBox = getBoundingBox();
                boundingBox = TileBoundingBoxUtils.getBoundingBox(
                        matrixSetBoundingBox, tileMatrix, tileGrid);
            }

        }
        return boundingBox;
    }
Get the bounding box of tiles

@param zoomLevel zoom level
@return bounding box of zoom level, or null if no tiles
@since 1.1.1