code: @Deprecated
    public static String addSmallestScreenWidth(String qualifiers, int smallestScreenWidth) {
      int qualifiersSmallestScreenWidth = Qualifiers.getSmallestScreenWidth(qualifiers);
      if (qualifiersSmallestScreenWidth == -1) {
        if (qualifiers.length() > 0) {
          qualifiers += "-";
        }
        qualifiers += "sw" + smallestScreenWidth + "dp";
      }
      return qualifiers;
    }
docs: If the Config already has a `sw` qualifier, do nothing. Otherwise, add a `sw`
  qualifier for the given width.
  
  @deprecated Use {@link android.content.res.Configuration#smallestScreenWidthDp} instead.