How to update the tableview after adding the object - ios

Question

How to update the tableview after adding the object .
I am doing in the mvvm ,
So
in cartviewmodel:-
var datasourceModel: DataSourceModel
var insertedArray: Model?
var finalArray: Array<Model>? = []
func add() {
datasourceModel.dataListArray?.append(insertedArray!)
print(datasourceModel.dataListArray)
self.datasourceModel.dataListArray = datasourceModel.dataListArray
}
In tableview cell i have used a button for adding.
So in viewcontroller i have done the action on the add button
AND thus it will add and display the other viewcontroller.
my hotelviewcontroller as:-
the code for add button action...
cell.cartaddCell = {[weak self] in
if let i = self?.tableView.indexPath(for: $0) {
let cartDataSource:DataSourceModel = DataSourceModel(array: nil)
let cartViewModel:ViewModel = ViewModel(withdatasource: cartDataSource)
let cartmodel:Model = Model(withoffermodel:self!.offerViewModel.datafordisplay(atindex: indexPath))
cartViewModel.insertedArray = cartmodel
print(cartViewModel.insertedArray)
cartViewModel.add()
let cartViewController:ViewController = ViewController(nibName: "ViewController", bundle: nil, withViewModel: cartViewModel)
self?.navigationController?.pushViewController(cartViewController, animated: true)
// self?.present(cartViewController, animated: true, completion: nil)
// print(cartViewModel.insertedArray )
print(cartmodel.offerprice)
print(cartmodel.offerdetailAddName)
print(cartmodel)
print(i)
// self?.chartViewModel.delete(atIndex: i)
}
}
now in my cartviewmodel as:-
class ViewModel: NSObject {
var datasourceModel:DataSourceModel
var insertedArray:Model?
var finalArray:Array<Model>? = []
init(withdatasource newDatasourceModel: DataSourceModel) {
datasourceModel = newDatasourceModel
print(datasourceModel.dataListArray)
}
func datafordisplay(atindex indexPath: IndexPath) -> Model{
return datasourceModel.dataListArray![indexPath.row]
}
func numberOfRowsInSection(section:Int) -> Int {
return datasourceModel.dataListArray!.count
}
func delete(atIndex indexPath: IndexPath) {
datasourceModel.dataListArray!.remove(at: indexPath.row)
}
func add() {
datasourceModel.dataListArray?.append(insertedArray!)
print(datasourceModel.dataListArray)
self.datasourceModel.dataListArray = datasourceModel.dataListArray
}
func insert(){
add()
datasourceModel.dataListArray!.insert(insertedArray?.offerdetailAddName, at: indexPath.row)
}
}
my cartviewcontroller:-
class ViewController: UIViewController ,UITableViewDataSource,UITabBarDelegate{
#IBOutlet private weak var tableView: UITableView!
#IBOutlet weak var orderbutton: UIButton!
#IBOutlet weak var displayresult: UIView!
private var chartViewModel :ViewModel!
init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?, withViewModel viewModel:ViewModel) {
super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
chartViewModel = viewModel
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.backgroundColor = UIColor(red: 0.93, green: 0.86, blue: 1, alpha:1.0)
tableView.dataSource = self
displayresult.isHidden = false
self.tableView .reloadData()
self.tableView.tableFooterView = displayresult
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return chartViewModel.numberOfRowsInSection(section: section)
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let identifier = "cell"
var cell: ChartCell! = tableView.dequeueReusableCell(withIdentifier: identifier) as? ChartCell
if cell == nil {
tableView.register(UINib(nibName: "ChartCell", bundle: nil), forCellReuseIdentifier: identifier)
cell = tableView.dequeueReusableCell(withIdentifier: identifier) as? ChartCell
}
cell.setEventData(charts: chartViewModel.datafordisplay(atindex: indexPath))
print(chartViewModel.insertedArray)
return cell
}
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete {
chartViewModel.delete(atIndex: indexPath)
tableView.deleteRows(at: [indexPath], with: .automatic)
self.tableView.reloadData()
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Actually i have 2 screens.
1.hotelscreen
2.cartscreen
So while clicking the hoteltableviewcell a have a button to add cart .
So while adding the hotel model will added in the cart screen.
for that i got the value already.
But my question is:-
when i clicked on the cartscreen the added object is not displayed.
So how to show the updated data.

Answer 1

Seems like all you need is tableView.reloadData().