Reload UITableView cells

Sometimes it’s needed to reload only some of the rows of UITableView to save some time and energy and not reload whole the table. This is how it can be done:

NSIndexPath * indexPath = \
   [NSIndexPath indexPathForRow:row inSection:0]; 
[self.tableView reloadRowsAtIndexPaths: \
   [NSArray arrayWithObject:indexPath] \
   withRowAnimation:UITableViewRowAnimationMiddle];