segmentChanged category does not work for StoreSearch

🎤 General Discussion iOS
1 
 @IBOutlet weak var segmentedControl: UISegmentedControl!    
@IBAction func segmentChanged(_ sender: UISegmentedControl) {
    performSearch()
}

func iTunesURL(searchText: String, category: Int) -> URL {
    let entityName: String
    switch category {
    case 1: entityName = "musicTrack"
    case 2: entityName = "software"
    case 3: entityName = "ebook"
    default: entityName = ""
    }
    
    let escapedSearchText = searchText.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed)!
    let urlString = String(format:"https://itunes.apple.com/search?term=%@&limit=200", escapedSearchText, entityName)
    let url = URL(string: urlString)

inside extention

func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
performSearch()
}

func performSearch() {
    if !searchBar.text!.isEmpty {
        searchBar.resignFirstResponder()
        dataTask?.cancel()
        isLoading = true
        tableView.reloadData()
        
        hasSearched = true
        searchResults = []
        
        let url = self.iTunesURL(searchText: searchBar.text!,
                                 category: segmentedControl.selectedSegmentIndex)
        
        let session = URLSession.shared
        
        dataTask = session.dataTask(with: url, completionHandler: { data, response, error in
            if let error = error as NSError?, error.code == -999 {
                return
            } else if let httpResponse = response as? HTTPURLResponse,
                httpResponse.statusCode == 200 {
                
                if let data =  data, let jsonDictonary = self.parse(json: data) {
                    self.searchResults = self.parse(dictionary: jsonDictonary)
                    self.searchResults.sort(by: <)
                    
                    DispatchQueue.main.async {
                        self.isLoading = false
                        self.tableView.reloadData()
                        
                    }
                    return
                }
                
            } else {
                print("Failure! \(response!)")
            }
            
            DispatchQueue.main.async {
                self.hasSearched = false
                self.isLoading = false
                self.tableView.reloadData()
                self.showNetWorkError()
            }
        })
        
        dataTask?.resume()
        
    }
}

my click my sigment control but its not work :frowning: here is photo

2

i find what was problem i was missing …
this was wrong = let urlString = String(format:“https://itunes.apple.com/search?term=%@&limit=200”
after i correct = let urlString = String(format:“https://itunes.apple.com/search?term=%@&limit=200&entity=%@”
but after my app is working i search love and got result then i click software from navigationBar and my app was crash**( fatal error: unexpectedly found nil while unwrapping an Optional value)** i also find what is reason because there is no software with love name so it crash so my ques is what is best way handle this

i can do this way
if let price = dictionary[“trackPrice”] as? Double {
searchResult.price = price
}
but is it good i do for all like this ??

3

here is screen short

but it should be said not found yes ?

4

thanks i fixed and find where i done wrong thanks and sorry for post