code: public ImageReuseInfo create(String thisSize) {
          ArrayList<String> list = new ArrayList<String>();
          boolean canBeReused = false;
          for (int i = 0; i < mSizeList.length; i++) {
              String size = mSizeList[i];
  
              if (!canBeReused && thisSize.equals(size)) {
                  canBeReused = true;
                  continue;
              }
              if (canBeReused && !thisSize.equals(size)) {
                  list.add(size);
              }
          }
          if (list.size() == 0) {
              return new ImageReuseInfo(thisSize, null);
          } else {
              String[] sizeList = new String[list.size()];
              list.toArray(sizeList);
              return new ImageReuseInfo(thisSize, sizeList);
          }
      }
docs: Find out the size list can be re-sued.
  
  @param thisSize if "small_180" is input
  @return {"big_360", "big_720"} will be returned.