Make a tableView that shows previous user inputs (in other views) - ios

Question

I'm stack doing my first app, I searched a lot of tutorials about tableviews, arrays and segues but I can't even figure it out how to resolve my problem, here I go:
I need that the app store a value in an array (class) so I can access it latter (not in the next segue), I did a different app more simple than the last one, just with a UITextfield input and a button to add it to the class. When I move from the user input part to the tableView, the tableView is empty. I will put the code here:
TABLE VIEWCONTROLLER
import UIKit
class NameTableViewController: UITableViewController {
var names = [Name]()
override func viewDidLoad() {
super.viewDidLoad()
}
override func numberOfSections(in tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return names.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cellIdentifier = "NameTableViewCell"
guard let cell = tableView.dequeueReusableCell(withIdentifier: "cellIdentifier", for: indexPath) as? NameTableViewCell else {
fatalError("The dequeueReusable cell is not an instance of NameTableViewCell")
}
let name = names[indexPath.row]
cell.nameLabel.text = name.name
return cell
}
USER INTERFACE VIEWCONTROLLER:
import UIKit
class ViewController: UIViewController {
var name = [Name]()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
#IBOutlet weak var nameTextField: UITextField!
#IBAction func addingButton(_ sender: UIButton) {
let writtenName = nameTextField.text ?? "No name written"
let name1 = Name(name: writtenName)
name.append(name1)
}
}
<!-- end snippet -->
VIEWCELL:
class NameTableViewCell: UITableViewCell {
#IBOutlet weak var nameLabel: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
<!-- end snippet -->
NAME CLASS METHOD:
class Name {
var name: String
init(name: String) {
self.name = name
}
}
!-- end snippet -->
TableView
User Input
Sorry if this is a dumb question, as you may have notice I'm new programming and swift is the first language that I'm learning.

Answer 1

You can use nsuserdefaults https://developer.apple.com/documentation/foundation/nsuserdefaults and store a key decodable struct and later on call it everywhere.
// Save Data
struct People: Codable {
let name: String?
}
var peopleArray = [People]()
let mike = People(name: "mike")
peopleArray.append(mike)
UserDefaults.standard.set(peopleArray, forKey: "people")
// Request Stored Data
func getPeople() -> [People]?{
let myPeople = UserDefaults.standard.data(forKey: "people")
if myPeople == nil {
return nil
}
let peopleArray = try! JSONDecoder().decode([People].self, from: myPeople!)
return peopleArray
}
let people = getPeople()
if(people != nil){
for person in people {
print(person.name)
}
}