The numberOfRowsInTable should only be retrieved when the reloadData is called. Also, I replaced the numberOfRows and numberOfColumns methods with properties, since there is no need to check the datasource every time those methods were called, which was quite frequent.
Added column width and resizing.
The numberOfRowsInTable should only be retrieved when the reloadData is called. Also, I replaced the numberOfRows and numberOfColumns methods with properties, since there is no need to check the datasource every time those methods were called, which was quite frequent.