Odtnhj

I have a Table Bar where i have 3 separate MVC. The first MVC is a UITableView where i can search for a location and it will display 10 day forecast. The second MVC also a UITableView stores my favourite locations. I can tap on the location and it will bring me another UITableView that displays the 10 day forecast just like the first tab bar. However i get an "Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value" I'm using a custom prototype cell just like the first tab bar view and it works great there.

The code for my first tab bar mvc looks like:

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell 
 let cell = tableView.dequeueReusableCell(withIdentifier: "WeatherDataCell", for: indexPath)

let weatherCell = timeSeries[indexPath.row]
if let wc = cell as? WeatherTableViewCell 
 wc.timeSeries = weatherCell


return cell

The custom prototype cell looks something like:

class WeatherTableViewCell: UITableViewCell {

 @IBOutlet weak var WeatherImageView: UIImageView!
 @IBOutlet weak var WeatherTimeLabel: UILabel!
 @IBOutlet weak var WeatherTemperatureLabel: UILabel!
 @IBOutlet weak var WeatherWindLabel: UILabel!
 @IBOutlet weak var WeatherPrecipitationLabel: UILabel!

 var timeSeries : TimeSeries? 
 didSet 
 updateUI()
 
 

 func updateUI() 
 for parameters in timeSeries!.parameters 
 if parameters.name == "t" 
 let temperature = parameters.values[0]
 WeatherTemperatureLabel.text? = "(temperature) °C" // <- works for the first MVC but crashes on the second MVC even though i can print out the temperature
 
 

The func in the seconds MVC basically looks the same as the first one so i don't understand why its crashing, it should have data.

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell 
 let cell = tableView.dequeueReusableCell(withIdentifier: "DetailedWeatherCell", for: indexPath) as! WeatherTableViewCell

let weatherCell = timeSeries[indexPath.row] 
let wc = cell
wc.timeSeries = weatherCell

return cell

added additional code for clarity (my FavoriteDetailedTableViewController class):

 override func viewDidLoad() 
 super.viewDidLoad()
 self.tableView.register(WeatherTableViewCell.self, forCellReuseIdentifier: "DetailedWeatherCell")

I think you forgot to change identifier of prototype cell in FavoritedDetailedTableViewController. In this TableViewController change it to

and it should work.

Second you maybe forgot to set your cell class here

Also delete this line from viewDidLoad

self.tableView.register(WeatherTableViewCell.self, forCellReuseIdentifier: "DetailedWeatherCell")

• 2 Viewcontrollers can not reuse the same prototype cell which had been created by one of two viewcontrollers


• WeatherTableViewCell can't have 2 layouts in mvc1, mvc2
  
  => You have to create your customer cell in xib file and register a cell for UITableViewCell reuse.