Cannot subscript Dictionary with String

Question

I wrote the following functions, to access a userInfo dictionary:

func updateAddressLabel(notification: NSNotification) {
    let userInfo:Dictionary<String,AnyObject> = notification.userInfo as! Dictionary<String, AnyObject>
    self.infoLabelAddress.text = userInfo["geocodeLocation"]
}

func updateDispatchInformation(notification: NSNotification) {
    let userInfo:Dictionary<String,AnyObject> = notification.userInfo as! Dictionary<String, AnyObject>

    let streetName = userInfo["streetName"]
    let incidentLatitude = userInfo["latitude"]
    let incidentLongitude = userInfo["longitude"]

    // Set Dispatch Info Label
    self.infoLabelTitle.text = "Notruf"
    self.infoLabelAddress.text = streetName

    self.createIncidentAnnotation(incidentLatitude, longitude: incidentLongitude)
}

But I cannot access the keys, as I get the errors:

Cannot subscript a value of type 'Dictionary String,AnyObject> with an index of type 'String'

konrad.bajtyngier · Accepted Answer · 2016-02-20 20:56:29Z

3

You are trying to assign AnyObject to label's text property. I would go:

func updateAddressLabel(notification: NSNotification) {
    if let userInfo = notification.userInfo as? Dictionary<String,AnyObject>, let geocodeLocation = userInfo["geocodeLocation"] as? String {
        infoLabelAddress.text = geocodeLocation
    }
}

answered Feb 20, 2016 at 20:56

konrad.bajtyngier

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Comments

vadian · Accepted Answer · 2016-02-20 20:55:32Z

2

userInfo is Dictionary<String,AnyObject>, to assign the value to a specific type like String you have to downcast the object for example

self.infoLabelAddress.text = userInfo["geocodeLocation"] as! String

answered Feb 20, 2016 at 20:55

vadian

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