CODEWITHSUNDEEP
swiftcocoa
Madhur Ahuja
Madhur Ahuja

Reputation: 22691

Instance member cannot be used on type | Closures

I have a very simple NSViewController , which hits an API using a WeatherFetcher class. It passes a completion handler as a parameter, so that the HTTP API can call it once it finishes.

In this completion handler, I am trying to set the value of a simple NSTextField to the result of API. However, I am getting this error: Instance member 'currentTemp' cannot be used on type 'WeatherView'

Any idea what is wrong? 

class WeatherView: NSViewController {

    var weather:Weather?

    @IBOutlet weak var currentTemp: NSTextField!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.

        WeatherFetcher.fetchCurrent(currentWeatherCallback)

    }

    override var nibName : String{
        return "WeatherView"
    }

    var currentWeatherCallback =
    {
        (weather: Weather?) in

        currentTemp.stringValue = weather?.updatedTime
        // Instance member 'currentTemp' cannot be used on type 'WeatherView'

    }


}

Upvotes: 0

Views: 2198

Answers (1)

marius
marius

Reputation: 2156

You don't have access to the instance scope when initialising properties, you can only access the static context.

Try this:

var currentWeatherCallback: Weather? -> Void { return
    { (weather: Weather?) in
        self.currentTemp.stringValue = weather?.updatedTime
    }
}

Upvotes: 3

Related Questions