multiple pickerview didSelectRow error in Swift - swift

Question

I have 2 pickerviews, 1 pickerview is to select a crypto-currency from an Array and the other pickerview is used to select a currency from an array. The problem I am having is when I run the app on simulator and select the cryptocurreny in cryptoPicker the app it also selects the same array value from currencyPicker and vice a versa. I don't want the array value of 0 to be pulled from both arrays unless it is selected by the user.
#IBOutlet weak var cryptoCurrentRate: UILabel!
#IBOutlet weak var currencyLabel: UILabel!
#IBOutlet weak var currencyPicker: UIPickerView!
#IBOutlet weak var cryptoPicker: UIPickerView!
#IBOutlet weak var cryptoLabel: UILabel!
var coinManager = CoinManager()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
coinManager.delegate = self
currencyPicker.dataSource = self
currencyPicker.delegate = self
cryptoPicker.dataSource = self
cryptoPicker.delegate = self
}
}
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
if pickerView == currencyPicker {
return coinManager.currencyArray.count
}
if pickerView == cryptoPicker {
return coinManager.cryptoArray.count
}
return 0
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if pickerView == currencyPicker {
return coinManager.currencyArray[row]
}
if pickerView == cryptoPicker {
return coinManager.cryptoArray[row]
}
return ""
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
let selectedCurrency = coinManager.currencyArray[row]
let selectedCrypto = coinManager.cryptoArray[row]
coinManager.fetchCryptoCoin(assetIdBase: selectedCrypto, assetIdQuote: selectedCurrency)
}
}

Answer 1

Do the same check for picker and in 'didSelectRow', you can do it like this:
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
var selectedCurrency: CurrencyModel? = nil
var selectedCrypt: CryptModel? = nil
if pickerView == currencyPicker {
selectedCurrency = coinManager.currencyArray[row]
}
if pickerView == cryptoPicker {
selectedCrypto = coinManager.cryptoArray[row]
}
coinManager.fetchCryptoCoin(assetIdBase: selectedCrypt == nil ? coinManager.cryptoArray[.zero] : selectedCrypt!, assetIdQuote: selectedCurrency == nil ? coinManager.currencyArray[.zero] : selectedCurrency!)
}
By default it will get the first value from 'coinManager.currencyArray' or 'coinManager.cryptoArray'