TableView Swift with dynamic and fixed cells - swift

Question

I'm making an app that displays data from Firebase , I have a TV that has to show one fixed cell (to choose the type of data to display) and the other cell to display data from server this is the code:
import UIKit
import Firebase
import SwiftDate
class EventiTVC: UITableViewController {
let userID = FIRAuth.auth()?.currentUser?.uid
let ref = FIRDatabase.database().reference()
let utente = UserDefaults.standard
#IBOutlet weak var Menu_button: UIBarButtonItem!
var Eventi:[String] = []
override func viewDidLoad() {
super.viewDidLoad()
if self.revealViewController() != nil {
Menu_button.target = self.revealViewController()
Menu_button.action = #selector(SWRevealViewController.revealToggle(_:))
self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
}
let imageView = UIImageView(image: #imageLiteral(resourceName: "Hangover_Background"))
imageView.contentMode = .scaleAspectFill
self.tableView.backgroundView = imageView
self.tableView.tableFooterView = UIView()
self.navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.white,NSFontAttributeName: UIFont(name: "HelveticaNeue-Bold", size: 19)!]
// 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()
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
if self.revealViewController() != nil {
Menu_button.target = self.revealViewController()
Menu_button.action = #selector(SWRevealViewController.revealToggle(_:))
self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
}
self.navigationController?.navigationBar.barTintColor = UIColor.orange
self.navigationController?.navigationBar.tintColor = UIColor.white
self.navigationController?.navigationBar.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "HelveticaNeue-Bold", size: 19)!,NSForegroundColorAttributeName : UIColor.white]
DeterminaInfoProprietario()
DeterminoLocali()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 2
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
if section == 0{
return 1
}
else {
return Eventi.count
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.row == 0{
let cell = Bundle.main.loadNibNamed("Event_Type", owner: self, options: nil)?.first as! Event_Type
return cell
}
else {
let cell = Bundle.main.loadNibNamed("Evento", owner: self, options: nil)?.first as! Evento
let EventoCorrente = Eventi[indexPath.row]
// scarico info Evento corrente ref.child("Eventi").child(EventoCorrente).observeSingleEvent(of: .value, with: { (snap) in
if snap.childrenCount != 0 {
let DatiEvento = snap.value as? NSDictionary
cell.Nome.text = DatiEvento?.value(forKey: "Nome") as! String!
cell.Locale.text = DatiEvento?.value(forKey: "Locale") as! String!
let urlcopertina = DatiEvento?.value(forKey: "Immagine Copertina") as! String!
cell.Copertina.aail_load(url: NSURL(string: urlcopertina!)!)
// per scaricare il colore , devo scaricare il locale
let locale = DatiEvento?.value(forKey: "Locale") as! String!
var Colore:UIColor? = nil
var Ombra:UIColor? = nil
self.ref.child("Locali").child(locale!).observeSingleEvent(of: .value, with: { (snap2) in
if snap2.childrenCount != 0 {
let DatiLocale = snap2.value as? NSDictionary
Colore = ColoriDaStringa(Colore: (DatiLocale?.value(forKey: "Colore Pagina"))! as! String)[0]
Ombra = ColoriDaStringa(Colore: (DatiLocale?.value(forKey: "Colore Pagina"))! as! String)[1]
cell.ViewC.backgroundColor = Colore!
cell.View_ombra.backgroundColor = Ombra!
}
})
}
else {
// Evento Cancellato? // gestire situazione
}
})
return cell
}
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat{
if indexPath.row == 0{
return 44
}else {
return 190
}
}
#IBAction func ritornaHome (Segue:UIStoryboardSegue){
}
}
I got 2 static cell and 1 dynamic cell, it should be the other way around, any idea why?

Answer 1

In your cellForRowAtIndexPath() method you should change your if statement from:
if (indexPath.row == 0)
to
if (indexPath.section == 0)

Answer 2

Modify these two functions to:
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return Eventi.count+1
}

Answer 3

As we should go with latest features. You should go with Auto layout. Auto layout has in built feature for showing dynamic height of UITableView Cell. Refer below link if you want to learn.
Dynamic cell height UITableview
Otherwise here we have answer of issue in your code.
In numberOfSections() you have set wrong condition. Just replace
return 2
to
return 1
And
in numberOfRowsInSection() replace
if section == 0{
return 1
}
else {
return Eventi.count
}
to
return Eventi.count+1