How to connect to tableview containers? - ios

Question

I am a beginner to Xcode and Swift and I am currently creating an application where the user adds a person on the application and after that it right the amount of money they owe that person or that person owes him/her.
Note: I have used core data to store all the value
I have ViewController called PeopleTableViewController where the user adds the name of the person they owe. Then I have PersonDetailTableViewController which shows the list of details the user owes that particular person the selected in PeopleTableViewController. The problem I am facing is that if I add three people in PeopleTableViewController and when I select any one of the people then I am directed to same tableview in PersonDetailTableViewController but I want different tableviews for different person the user selects in PeopleTableViewController.
PersonDetailTableViewController:
import UIKit
class PersonDetailTableViewController: UITableViewController {
let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
var totalLabel: UILabel?
var person: People?
var owe: Owe?
#IBOutlet var personTable: UITableView!
var dataInfo: [Owe] = []
var selectedObject: [Owe] = []
var balanceAmount = "Balance: "
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return (dataInfo.count)
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = personTable
.dequeueReusableCell(withIdentifier: "detailsCell", for: indexPath)
cell.textLabel?.text = dataInfo[indexPath.row].name
cell.detailTextLabel?.text = "₹ \(dataInfo[indexPath.row].amount)"
// if dataInfo[indexPath.row].amount < 0 {
// cell.detailTextLabel?.textColor = UIColor.red
// } else {
// cell.detailTextLabel?.textColor = UIColor.green
// }
return cell
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
selectedObject = [dataInfo[indexPath.row]]
performSegue(withIdentifier: "addOweDetails", sender: nil)
tableView.deselectRow(at: indexPath, animated: true)
}
override func viewDidLoad() {
super.viewDidLoad()
getData()
personTable.dataSource = self
addTotalToNav()
print(dataInfo as Any)
}
// MARK: - Table view data source
func addTotalToNav() -> Void {
if let navigationBar = self.navigationController?.navigationBar {
let totalFrame = CGRect(x: 10, y: 0, width: navigationBar.frame.width/2, height: navigationBar.frame.height)
totalLabel = UILabel(frame: totalFrame)
totalLabel?.text = balanceAmount
totalLabel?.tag = 1
totalLabel?.font = UIFont.boldSystemFont(ofSize: 14)
totalLabel?.textColor = UIColor.red
// navigationBar.large = totalLabel?.text
self.title = totalLabel?.text
}
}
func getData() -> Void {
do{
dataInfo = try context.fetch(Owe.fetchRequest())
var total:Double = 0.00
for i in 0 ..< dataInfo.count {
total += dataInfo[i].amount as! Double
}
balanceAmount = "Balance: ₹" + (NSString(format: "%.2f", total as CVarArg) as String)
}
catch{
print("Fetching Failed")
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let vc = segue.destination as! NewOweTableViewController
vc.dataInfo = selectedObject
selectedObject.removeAll()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
getData()
personTable.reloadData()
if (self.navigationController?.navigationBar.viewWithTag(1)?.isHidden == true){
self.navigationController?.navigationBar.viewWithTag(1)?.removeFromSuperview()
addTotalToNav()
}
}
}
PeopleTableViewController:
import UIKit
import CoreData
class PeopleTableViewController: UITableViewController {
#IBOutlet weak var peopleTableView: UITableView!
var people: [People] = []
override func viewDidLoad() {
super.viewDidLoad()
peopleTableView.separatorStyle = .none
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem
}
//ViewWillAppear allows us to fetch all the data in the backend and help us display to the user
override func viewWillAppear(_ animated: Bool) {
guard let appDelegate = UIApplication.shared.delegate as? AppDelegate else {
return
}
let managedContext = appDelegate.persistentContainer.viewContext
let fetchRequest: NSFetchRequest<People> = People.fetchRequest()
do {
people = try managedContext.fetch(fetchRequest)
peopleTableView.reloadData()
} catch {
print("Could not fetch")
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func addButtonPressed(_ sender: UIBarButtonItem) {
}
//Following function is called right before the user segues from one viewcontroller to another viewcontroller
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
guard let destination = segue.destination as? PersonDetailTableViewController,
let selectedRow = self.peopleTableView.indexPathForSelectedRow?.row else {
return
}
destination.person = people[selectedRow]
// destination.owe = people[selectedRow]
}
func deletePerson(at indexPath: IndexPath) {
let person = people[indexPath.row]
guard let managedContext = person.managedObjectContext else {
return
}
managedContext.delete(person)
do {
try managedContext.save()
people.remove(at: indexPath.row)
peopleTableView.deleteRows(at: [indexPath], with: .automatic)
} catch {
print("Could not delete")
peopleTableView.reloadRows(at: [indexPath], with: .automatic)
}
}
}
extension PeopleTableViewController{
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return people.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = peopleTableView.dequeueReusableCell(withIdentifier: "peopleCell", for: indexPath)
let person = people[indexPath.row]
cell.textLabel?.text = person.title
return cell
}
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete {
deletePerson(at: indexPath)
}
}
}
The following images shows what I exactly require:
PeopleTableViewController
PeopleTableViewController
On clicking Mike I get following:
PersonDetailTableViewController
On clicking John I get following:
PersonDetailTableViewController
I want that the records for Mike and John should be different that is on PersonDetailTableViewController.

Answer 1

You can try (Both in PeopleTableViewController) , create a segue named shoePersonDetails from PeopleTableViewController to PersonDetailTableViewController
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let person = people[indexPath.row]
performSegue(withIdentifier: "shoePersonDetails", sender: person)
tableView.deselectRow(at: indexPath, animated: true)
}
//
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let vc = segue.destination as! PersonDetailTableViewController
vc.dataInfo = sender as! People
}