geopackage-sdk/src/main/java/mil/nga/geopackage/tiles/TileBoundingBoxAndroidUtils.java
public static boolean isValidAllowEmpty(RectF rectF) {
        return rectF.left <= rectF.right && rectF.top <= rectF.bottom;
    }
public static boolean isValidAllowEmpty(RectF rectF) {
        return rectF.left <= rectF.right && rectF.top <= rectF.bottom;
    }
Check if the rectangle is valid allowing empty ranges

@param rectF rectangle
@return true if valid
@since 1.3.1