didChangeItemsAtRows added

[canaksoy]

usage sample for enum

func czpickerView(_ pickerView: CZPickerView!, didChangeItemsAtRows rows: [Any]!) {

    if (pickerView == pickerPref) {
        
        var values = [UserPref]()
        
        for row in rows {
            if let row = row as? Int {
                print(pickerPrefArray[row])
                values.append(pickerPrefArray[row])
            }
        }
        
        if (values.count>1) {
        
            if (values.contains(.some)) {
                pickerView.unselectAll()
                print("You cannot select some with other options")
            }
            
        }
        
    }
}