Implement LAPickerViewDelegate method pickerView:viewForColumn:forComponent:reusingView: needed to provide a custom view for each column.
If the delegate also implements pickerView:titleForColumn:forComponent: and the view provided is a UILabel, then the text set is the title NSString returned.
Add optional implementation of the LAPickerViewDelegate method pickerView:viewForColumn:forComponent:reusingView: in the view controller.