public void setRightToLeft(boolean rtl) {
        this.rtl = rtl;
        if (handleThumb != null) {
            handleThumb.setRightToLeft(rtl);
        }
        if(indicator != null) {
            indicator.setRTL(rtl);
            indicator.setLayoutParams(indicator.refreshMargins((LayoutParams) indicator.getLayoutParams()));
        }
    }
Overrides the right-to-left settings for the scroll bar.
lib/src/main/java/com/turingtechnologies/materialscrollbar/MaterialScrollBar.java