How to design the array structure for Multiple cells in UITableview? - ios

Question

This is my first ViewController ,when I will click on plus(+) button, it will move to the SecondViewController
This is my SecondViewController, after giving the required field when I will click on save button it should add one more row in my tableview respective cell(executive,seniormanagement,staff). But it's not adding the row in respective cells.
This my code what i have tired
FirstViewController
class TableViewHeader: UIViewController ,UITableViewDelegate,UITableViewDataSource,EmployeeProtocol{
#IBOutlet weak var tableviewHeader: UITableView!
var employee = [ EmployeeStatus(status:"Executive",Name:["Smith","Dev","Aryan"], Date:["Nov 14 1889","Dec 01 1980","Sep 18 1997"]),
EmployeeStatus(status:"SeniorManagement",Name:["Sourav","Smarak"], Date:[" April 10 1879"," Dec 11 1990"]),
EmployeeStatus(status:"Staff",Name:["Smith","Dev","Aryan","Suman"], Date:["Feb 14 1234"," Jan 01 1480","Sep 23 1994","July 10 1991"])]
#IBAction func plusButtonTapped(_ sender: UIButton) {
performSegue(withIdentifier: "showSegue", sender:self)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "showSegue" {
let createSegue = segue.destination as! CreateEmployeeViewController
createSegue.myEmpProtocol = self
}
}
func numberOfSections(in tableView: UITableView) -> Int {
return employee.count
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 50
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return employee[section].Name.count
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 70
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let Label = UILabel()
Label.text = employee[section].status
Label.backgroundColor = UIColor.gray
return Label
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableviewHeader.dequeueReusableCell(withIdentifier: "TableHeaderCell", for: indexPath) as! TableViewHeadercell
cell.NameLabel.text = employee[indexPath.section].Name[indexPath.row]
cell.DateLabel.text = employee[indexPath.section].Date[indexPath.row]
return cell
}
func addData(status:String, Name:[String], Date:[String]) {
employee.append(EmployeeStatus(status:status, Name:Name, Date: Date))
tableviewHeader.reloadData()
}
}
SeconViewController
protocol EmployeeProtocol {
func addData(status:String, Name:[String], Date:[String])
}
class CreateEmployeeViewController: UIViewController {
var myEmpProtocol:EmployeeProtocol?
#IBOutlet weak var nameTextField: UITextField!
#IBOutlet weak var birthdayTextField: UITextField!
#IBOutlet weak var StatusSegment: UISegmentedControl!
var name = [String]()
var DOB = [String]()
var status:String = ""
#IBAction func saveButtonTapped(_ sender: UIButton) {
self.name = [nameTextField.text!]
self.DOB = [birthdayTextField.text!]
if StatusSegment.selectedSegmentIndex == 0 {
self.status = "Executive"
} else if StatusSegment.selectedSegmentIndex == 1{
self.status = "SeniorManagement"
} else if StatusSegment.selectedSegmentIndex == 2 {
self.status = "Staff"
}
myEmpProtocol?.addData(status:status, Name:name, Date:DOB)
}
#IBAction func CancelButtonTapped(_ sender: UIButton) {
dismiss(animated: true, completion: nil)
}
}
MyClass
import Foundation
struct EmployeeStatus {
var status:String
var Name:[String]
var Date:[String]
init(status:String, Name:[String], Date:[String]){
self.status = status
self.Name = Name
self.Date = Date
}

Answer 1

Your current code is adding the new EmployeeStatus to employee array, not the item's EmployeeStatus.Name array and EmployeeStatus.Date array.
Please try this code.
func addData(status:String, Name:[String], Date:[String]) {
var arr = [EmployeeStatus]()
employee.forEach { ele in
if ele.status == status {
var e = ele
e.Name.append(Name[0])
e.Date.append(Date[0])
arr.append(e)
} else {
arr.append(ele)
}
}
employee = arr
tableviewHeader.reloadData()
}

Answer 2

Your data looks interesting. It might work better with
enum Level: Int {
case executive = 0, seniorManagement, staff
var stringValue: { return (String:description: self).capitalizingFirstLetter }
}
struct Employee {
let name: String
let date: String
}
var employees: [Level: [Employee]] = [
.executive: [Employee(name: "Smith", date: "Nov 14 1889"],
.seniorManagement: [],
.staff: []]
Then you can add employees with:
guard let level = Level(rawValue: status) else {
throw Errors.levelDoesNotExist(status)
}
employees[.level] = newEmployee
Reloading the tableView works as you do already. Just the data is in a format where its weird to add to.
And best dismiss the second viewController once its finished after the addData delegate call so its going back to the first to show the updated data.

Answer 3

You have to set your view controller as a table view delegate and datasource.
Add to the end of the viewDidLoad at TableViewHeader class:
override func viewDidLoad() {
super.viewDidLoad()
tableviewHeader.delegate = self
tableviewHeader.dataSource = self
}

Answer 4

In this way, you can pass value from one view controller to another tab:
First of all open main.storyboard
Select the First view controller and drag and drop UItextField and UIButton on the field.