1. /**
  2.  * Returns number of cells needed for given size of the widget.
  3.  *
  4.  * @param size Widget size in dp.
  5.  * @return Size in number of cells.
  6.  */
  7. private static int getCellsForSize(int size) {
  8.     int n = 2;
  9.     while (70 * n - 30 < size) {
  10.         ++n;
  11.     }
  12.     return n - 1;
  13. }