UITableView does not populate with data - ios

Question

I am trying to make a simple UITableView with custom cells (including two labels and one image view) but I can't get the table to be populated with data.
I have created the following struct for my data:
struct feed {
var title: String
var subtitle: String
var image: String
}
and here I have defined some sample data:
var myfeed = [feed(title: "Test Feed", subtitle: "Welcome to feedFeed", image: "https://www.demo.com/imnage1.png"), feed(title: "Number 2", subtitle: "Demo?", image: "https://www.demo.com/imnage2.png")]
I have created an UITableView in my Storyboard, have configured the Custom cell and am using the Cell identifier "LabelCell".
I have created a separate cocoaTouchclass file for the UITableViewCell class:
import UIKit
class ehappyTableViewCell: UITableViewCell {
#IBOutlet weak var headlineTitleLabel: UILabel!
#IBOutlet weak var headlineTextLabel: UILabel!
#IBOutlet weak var headlineImageView: UIImageView!
override func awakeFromNib() {
super.awakeFromNib()
func tableView(_ tableView: UITableViewCell, heightForRowAt indexPath: IndexPath) -> CGFloat
{
return 100.0;//Choose your custom row height
}
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
In my ViewController file I have the following code:
#IBOutlet weak var table: UITableView!
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return myfeed.count
}
func tableView(_ tableViwq: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell:ehappyTableViewCell = self.table.dequeueReusableCell(withIdentifier: "LabelCell", for: indexPath) as! ehappyTableViewCell!
let headline = myfeed[indexPath.row]
cell.headlineTitleLabel?.text = headline.title
cell.headlineTextLabel?.text = headline.subtitle
let urlWithoutHTTP = headline.image
let httpAddition = "https:"
let addition = "\(httpAddition)\(urlWithoutHTTP)"
let url = URL(string: addition)
DispatchQueue.global().async {
let data = try? Data(contentsOf: url!) //make sure your image in this url does exist, otherwise unwrap in a if let check / try-catch
DispatchQueue.main.async {
cell.headlineImageView.image = UIImage(data: data!)
}
}
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 140.0;//Choose your custom row height
}
override func viewDidLoad() {
super.viewDidLoad()
self.table.delegate = self
self.table.dataSource = self
}
When I run the app the table will not populate with the sample data I have created.
Any suggestions on what I can do?

Answer 1

If your cell is an xib then you have to register the cell by writing the following code in the viewDidLoad
self.table.register(UINib(nibName: "ehappyTableViewCell", bundle: nil), forCellReuseIdentifier: "LabelCell")
If it is designed inside the viewcontroller in storyboard then no need to register
Check if delegate and dataSource are given
Try replacing the line with following line
let cell = tableView.dequeueReusableCell(withIdentifier: "LabelCell") as? ehappyTableViewCell