can we pass data from table cell to table view where both are xib files? - ios

Question

I want to pass table cell data (xib file) to table view (also a xib file). I have tried passing the data using the following piece of code but did not get an appropriate result.
PropertyCell.swift
import UIKit
class PropertyCell: UITableViewCell {
#IBOutlet weak var propertyCodeLbl: UILabel!
#IBOutlet weak var addressLbl: UILabel!
}
I have attached the screenshot for PropertyCell below -
PropertyCell.xib
PropertyCell.xib file
PropertyTableVC.swift
import UIKit
import Alamofire
class PropertyTableVC: UITableViewController {
#IBOutlet var propertyTabel: UITableView!
let URL_Landlord_Property_List = "http://127.0.0.1/source/api/LandlordPropertyList.php"
var count: Int = 0
var landlordPropertyArray: [PropertyList]? = []
override func viewDidLoad() {
super.viewDidLoad()
fetchData()
propertyTabel.dataSource = self
propertyTabel.delegate = self
let nibName = UINib(nibName: "PropertyCell", bundle:nil)
self.propertyTabel.register(nibName, forCellReuseIdentifier: "Cell")
}
func fetchData(){
let urlRequest = URLRequest(url: URL(string: URL_Landlord_Property_List)!)
let task = URLSession.shared.dataTask(with: urlRequest) { (data, response, error) in
if error != nil{
print(error!)
return
}
print(data!)
self.landlordPropertyArray = [PropertyList]()
self.count = (self.landlordPropertyArray?.count)!
do{
let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as! [String: AnyObject]
if let datafromjson = json["landlords_property_list"] as? [[String: AnyObject]] {
print(datafromjson)
for data in datafromjson{
var property = PropertyList()
if let id = data["ID"] as? Int,let code = data["Code"] as? String, let address1 = data["Address"] as? String
{
property.id = id
property.code = code
property.address1 = address1
}
self.landlordPropertyArray?.append(property)
}
print(self.landlordPropertyArray)
}
DispatchQueue.main.async {
self.propertyTabel.reloadData()
}
}catch let error {
print(error)
}
}
task.resume()
}
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return (landlordPropertyArray?.count)!
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
// Configure the cell...
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! PropertyCell
cell.propertyCodeLbl.text = self.landlordPropertyArray?[indexPath.item].code
cell.addressLbl.text = self.landlordPropertyArray?[indexPath.item].address1
return cell
}
}
Attached the screenshot for Property Table below -
PropertyTableVC.xib
PropertyTableVC.xib file

Answer 1

Your TableViewCell :
import UIKit
protocol yourProtocolName { //add protocol here
func getDataFromTableViewCellToViewController (sender : self) //* as you need to pass the table view cell, so pass it as self
}
class PropertyCell: UITableViewCell {
#IBOutlet weak var propertyCodeLbl: UILabel!
#IBOutlet weak var addressLbl: UILabel!
var delegate : yourProtocolName? //set a delegate
override func awakeFromNib() {
super.awakeFromNib()
if delegate != nil {
delegate.getDataFromTableViewCellToViewController(sender :self) *
}
}
}
And your ViewController :
import UIKit
import Alamofire
class PropertyTableVC: UITableViewController,yourProtocolName { //conform to the protocol you created in tableViewCell
#IBOutlet var propertyTabel: UITableView!
let URL_Landlord_Property_List = "http://127.0.0.1/source/api/LandlordPropertyList.php"
var count: Int = 0
var landlordPropertyArray: [PropertyList]? = []
override func viewDidLoad() {
super.viewDidLoad()
fetchData()
propertyTabel.dataSource = self
propertyTabel.delegate = self
let nibName = UINib(nibName: "PropertyCell", bundle:nil)
self.propertyTabel.register(nibName, forCellReuseIdentifier: "Cell")
}
func fetchData(){
let urlRequest = URLRequest(url: URL(string: URL_Landlord_Property_List)!)
let task = URLSession.shared.dataTask(with: urlRequest) { (data, response, error) in
if error != nil{
print(error!)
return
}
print(data!)
self.landlordPropertyArray = [PropertyList]()
self.count = (self.landlordPropertyArray?.count)!
do{
let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as! [String: AnyObject]
if let datafromjson = json["landlords_property_list"] as? [[String: AnyObject]] {
print(datafromjson)
for data in datafromjson{
var property = PropertyList()
if let id = data["ID"] as? Int,let code = data["Code"] as? String, let address1 = data["Address"] as? String
{
property.id = id
property.code = code
property.address1 = address1
}
self.landlordPropertyArray?.append(property)
}
print(self.landlordPropertyArray)
}
DispatchQueue.main.async {
self.propertyTabel.reloadData()
}
}catch let error {
print(error)
}
}
task.resume()
}
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return (landlordPropertyArray?.count)!
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
// Configure the cell...
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! PropertyCell
cell.propertyCodeLbl.text = self.landlordPropertyArray?[indexPath.item].code
cell.addressLbl.text = self.landlordPropertyArray?[indexPath.item].address1
return cell
}
func getDataFromTableViewCellToViewController(sender :UITableViewCell) {
//make a callback here
}
}
(*) Marked fields are updated code

Answer 2

Call fetchData() function after tableview delegate and datasource assigning
propertyTabel.dataSource = self
propertyTabel.delegate = self
Updated answer is
Create Cell Class like this
import UIKit
class YourTableViewCell: UITableViewCell {
#IBOutlet weak var profileImageView: UIImageView!
#IBOutlet weak var userNameLabel: UILabel!
#IBOutlet weak var timeDateLabel: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
self.backgroundColor = UIColor.tableViewBackgroundColor()
self.selectionStyle = .none
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
class func cellForTableView(tableView: UITableView, atIndexPath indexPath: IndexPath) -> YourTableViewCell {
let kYourTableViewCell = "YourTableViewCellIdentifier"
tableView.register(UINib(nibName:"RRLoadQuestionsTableViewCell", bundle: Bundle.main), forCellReuseIdentifier: kYourTableViewCell)
let cell = tableView.dequeueReusableCell(withIdentifier: kYourTableViewCell, for: indexPath) as! YourTableViewCell
return cell
}
}
Then create UIViewController Class and place UITableView on it and link with outlet
class YourViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, UITextViewDelegate {
#IBOutlet weak var tableView: UITableView!
var dataSource = [LoadYourData]()
// MARK: - Init & Deinit
override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
super.init(nibName: "YourViewController", bundle: Bundle.main)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
deinit {
NotificationCenter.default.removeObserver(self)
}
override func viewDidLoad() {
super.viewDidLoad()
setupViewControllerUI()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(true)
}
// MARK: - UIViewController Helper Methods
func setupViewControllerUI() {
tableView.estimatedRowHeight = 44.0
tableView.rowHeight = UITableViewAutomaticDimension
tableView.delegate = self
tableView.dataSource = self
loadData()
}
func loadData() {
// Write here your API and reload tableview once you get response
}
// MARK: - UITableView Data Source
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dataSource.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = YourTableViewCell.cellForTableView(tableView: tableView, atIndexPath: indexPath)
// assign here cell.name etc from dataSource
return cell
}