docs: public static CharSequence applyTypefaceSpan(CharSequence s, Typeface typeface) {
          if (s != null && s.length() > 0) {
              if (!(s instanceof Spannable)) {
                  s = new SpannableString(s);
              }
              ((Spannable) s).setSpan(TypefaceUtils.getSpan(typeface), 0, s.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
          }
          return s;
      }