static boolean isRightToLeft(Context c) {
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT &&
                c.getResources().getConfiguration().getLayoutDirection() == LayoutDirection.RTL;
    }
@param c Context
@return True if the current layout is RTL.
lib/src/main/java/com/turingtechnologies/materialscrollbar/Utils.java