Two custom cells in UITableView - ios

Question

I'm trying to use two custom cells for displaying the product information, on the first one I show the product main information and in the second one I display the comments of this product.
At the moment everything is linked in the StoryBoard and I have my tableview prepared for storing the comment information in the second custom cell (I have checked the requestComments() function and It's working fine but I can't make them appear.
Is it something related to the numberOfRowsInSection? Because I tried to SUM the products.count with the comments.count and It's showing an error.
It's my first time using two custom cells so I hope someone can help me.
Here is my code:
import UIKit
import Social
class MarcaProductoViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet var productoImageView:UIImageView!
#IBOutlet var tableView:UITableView!
#IBOutlet var votarFrame:UIView!
#IBOutlet var votarBarra:UISlider!
#IBOutlet var votarLabel:UILabel!
var productoImage:String!
var nombre:String!
var producto:Producto!
var productos = [Producto]()
var mensaje:Mensaje!
var mensajes = [Mensaje]()
var img:UIImage?
override func viewDidLoad() {
super.viewDidLoad()
// Set table view background color
self.tableView.backgroundColor = UIColor(red: 240.0/255.0, green: 240.0/255.0, blue: 240.0/255.0, alpha: 0.2)
// Remove extra separator
self.tableView.tableFooterView = UIView(frame: CGRectZero)
// Change separator color
self.tableView.separatorColor = UIColor(red: 240.0/255.0, green: 240.0/255.0, blue: 240.0/255.0, alpha: 0.8)
self.tableView.rowHeight = UITableViewAutomaticDimension
self.tableView.estimatedRowHeight = 88.0
requestPost()
requestComments()
tableView.reloadData()
}
override func viewDidAppear(animated: Bool) {
tableView.reloadData()
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
self.navigationController?.hidesBarsOnSwipe = false
self.navigationController?.setNavigationBarHidden(false, animated: true)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func requestPost () {
let request = NSMutableURLRequest(URL: NSURL(string: "http://www.website.es/product.php")!)
request.HTTPMethod = "POST"
let postString = "name="+name
request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding)
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in
if error != nil {
print("error=\(error)")
return
}
self.productos = self.parseJsonData(data!)
// Reload table view
dispatch_async(dispatch_get_main_queue(), {
self.tableView.reloadData()
})
}
task.resume()
tableView.reloadData()
}
func parseJsonData(data: NSData) -> [Producto] {
var productos = [Producto]()
do {
let jsonResult = try NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers) as? NSDictionary
// Parse JSON data
let jsonProductos = jsonResult?["lista_productos"] as! [AnyObject]
for jsonProducto in jsonProductos {
let producto = Producto()
producto.image = jsonProducto["image"] as! String
producto.name = jsonProducto["name"] as! String
producto.desc = jsonProducto["desc"] as! String
productos.append(producto)
}
}
catch let parseError {
print(parseError)
}
return productos
}
func requestComments () {
//print("Hola")
let request = NSMutableURLRequest(URL: NSURL(string: "http://www.website.es/comments.php")!)
request.HTTPMethod = "POST"
let postString = "name="+name
//print(postString)
request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding)
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in
if error != nil {
print("error=\(error)")
return
}
let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)!
print("mensajes = \(responseString)")
self.mensajes = self.parseJsonDataComments(data!)
// Reload table view
dispatch_async(dispatch_get_main_queue(), {
self.tableView.reloadData()
})
}
task.resume()
tableView.reloadData()
}
func parseJsonDataComments(data: NSData) -> [Mensaje] {
var messages = [Mensaje]()
do {
let jsonResult = try NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers) as? NSDictionary
// Parse JSON data
let jsonProductos = jsonResult?["messages"] as! [AnyObject]
for jsonProducto in jsonProductos {
let message = Mensaje()
message.author = jsonProducto["author"] as! String
message.message = jsonProducto["message"] as! String
message.date = jsonProducto["date"] as! String
messages.append(message)
}
}
catch let parseError {
print(parseError)
}
return message
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// Return the number of sections.
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// Return the number of rows in the section.
return productos.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
title = productos[indexPath.row].nombre
if indexPath.row == 0 {
print("11")
let cell = tableView.dequeueReusableCellWithIdentifier("CellDetail", forIndexPath: indexPath) as! ProductoTableViewCell
cell.selectionStyle = .None
if let url = NSURL(string: productos[indexPath.row].imagen) {
if let data = NSData(contentsOfURL: url) {
self.productoImageView.image = UIImage(data: data)
}
}
cell.name.text = productos[indexPath.row].name
cell.desc.text = productos[indexPath.row].desc
cell.layoutIfNeeded()
return cell
}
else {
print("22")
let cell2 = tableView.dequeueReusableCellWithIdentifier("MostrarComentarios", forIndexPath: indexPath) as! ComentariosTableViewCell
cell2.selectionStyle = .None
cell2.author.text = mensajes[indexPath.row].author
cell2.comment.text = mensajes[indexPath.row].comments
cell2.date.text = mensajes[indexPath.row].date
cell2.layoutIfNeeded()
return cell2
}
} }
Update:
I have made the following changes:
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// Return the number of sections.
return productos.count+mensajes.count
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// Return the number of rows in the section.
return productos.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
title = productos[indexPath.row].nombre
if indexPath.section == 0 {
print("11")
let cell = tableView.dequeueReusableCellWithIdentifier("CellDetail", forIndexPath: indexPath) as! ProductoTableViewCell
cell.selectionStyle = .None
if let url = NSURL(string: productos[indexPath.row].imagen) {
if let data = NSData(contentsOfURL: url) {
self.productoImageView.image = UIImage(data: data)
}
}
cell.nombre.text = productos[indexPath.row].nombre
cell.descripcion.text = productos[indexPath.row].descripcion
cell.modo_de_empleo.text = productos[indexPath.row].modo_de_empleo
cell.marca.text = productos[indexPath.row].marca
cell.linea.text = productos[indexPath.row].linea
cell.distribuidor.text = productos[indexPath.row].distribuidor
cell.tamano.text = productos[indexPath.row].tamano
cell.precio.text = productos[indexPath.row].precio
cell.codigo_nacional.text = productos[indexPath.row].codigo_nacional
cell.layoutIfNeeded()
return cell
}
else {
let cell2 = tableView.dequeueReusableCellWithIdentifier("MostrarComentarios", forIndexPath: indexPath) as! ComentariosTableViewCell
print(mensajes[indexPath.row].mensaje)
cell2.selectionStyle = .None
cell2.comentario.text = mensajes[indexPath.row].mensaje
cell2.fecha.text = mensajes[indexPath.row].fecha
cell2.layoutIfNeeded()
return cell2
}
}
At the moment, I can display the comments perfectly, but the problem is that the messages from this product are always the same (repeated in every new comment row) I just need to change something (I don't know what exactly) to show the correct information for the messages without beeing duplicated.
Thanks in advance.

Answer 1

I think you have to use return products.count
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return products.count
}
And you have to use % 2 == 0 instead of == 0
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
title = productos[indexPath.row].nombre
if indexPath.row % 2 == 0 { // runs if indexPath.row = 0, 2, 4, 6 etc
let cell = tableView.dequeueReusableCellWithIdentifier("CellDetail", forIndexPath: indexPath) as! ProductoTableViewCell
return cell
} else { // runs if indexPath.row = 1, 3, 5, 7 etc
let cell2 = tableView.dequeueReusableCellWithIdentifier("MostrarComentarios", forIndexPath: indexPath) as! ComentariosTableViewCell
return cell2
}
}
Remainder Operator
The remainder operator (a % b) works out how many multiples of b will
fit inside a and returns the value that is left over (known as the
remainder).
Here’s how the remainder operator works. To calculate 9 % 4, you first
work out how many 4s will fit inside 9:
You can fit two 4s inside 9, and the remainder is 1 (shown in orange).
In Swift, this would be written as:
9 % 4 // equals 1

Answer 2

If someone has the same problem:
else {
let cell2 = tableView.dequeueReusableCellWithIdentifier("MostrarComentarios", forIndexPath: indexPath) as! ComentariosTableViewCell
cell2.selectionStyle = .None
cell2.comentario.text = mensajes[(indexPath.section)-1].mensaje
cell2.fecha.text = mensajes[(indexPath.section)-1].fecha
cell2.layoutIfNeeded()
return cell2
}
Regards,