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Trick Spades
3,182 PointsUndeclared type 'CurrentWeather' in Stormy App
For some reason it says I have an undeclared type called Current Weather, when I have the struct and class "CurrentWeather"
I didn't have this error until I tried to run Stormy, then it showed me the error.
The error occurs in ForecastService:
func getForecast (lat: Double, long: Double, completion: (CurrentWeather? -> Void)) {
if let forecastURL = NSURL(string: "\(lat),\(long)", relativeToURL: forecastBaseURL) {
let networkOperation = NetworkOperation(url: forecastURL)
networkOperation.downloadJSONFromURL {
(let JSONDictionary) in
let currentWeather = self.currentWeatherFromJSON(JSONDictionary)
completion(currentWeather)
}
} else {
print("Could not construct valid URL")
}
}
func currentWeatherFromJSON(jsonDictionary: [String: AnyObject]?) -> CurrentWeather? {
if let currentWeatherDictionary = jsonDictionary?["currently"] as? [String:AnyObject] {
return CurrentWeather(weatherDictionary: currentWeatherDictionary)
} else {
print("JSON dictionary returned nil for 'currently'")
Here is my CurrentWeather struct:
struct CurrentWeather {
let temperature: Int?
let humidity: Int?
let precipProbability: Int?
let summary: String?
var icon: UIImage? = UIImage(named: "default.png")
init(weatherDictionary: [String: AnyObject]) {
temperature = weatherDictionary["temperature"] as? Int
if let humidityFloat = weatherDictionary["humidity"] as? Double {
humidity = Int(humidityFloat * 100)
} else {
humidity = nil
}
if let precipFloat = weatherDictionary["precipProbability"] as? Double {
precipProbability = Int(precipFloat * 100)
} else {
precipProbability = nil
}
summary = weatherDictionary["summary"] as? String
if let iconString = weatherDictionary["icon"] as? String,
let weatherIcon: Icon = Icon(rawValue: iconString) {
icon = weatherIcon.toImage()
}
}
}
4 Answers
Trick Spades
3,182 PointsI figured it out. In the course, Pasan puts the Icon enum before the CurrentWeather struct, which for some reason in XCode 7, makes CurrentWeather unaccessible. I switched the CurrentWeather struct with the Icon enum and it works now. :)
Brian Wassel
22,171 Pointsall i can think to do is change "CurrentWeather" to "currentWeather"... but again i am learning like you. i have also just finished that course.
Trick Spades
3,182 PointsI don't think that's it. Because currentWeather is a constant and CurrentWeather is a class. I didn't have any errors until I tried to run, and now for some reason my Forecast class doesn't have access to the CurrentWeather struct
Brian Wassel
22,171 Pointswhat is your error telling you? often if you just google the error you can find quick explanations by professionals. i tend to do it frequently when building my own apps, its a bad practice but try typing your error directly into a search engine
Trick Spades
3,182 Pointsit says undeclared type 'CurrentWeather', but it is declared in a different class, so I don't see why it wouldn't work. I guess I'll have to do some more research before I can continue in the course
Tukang Keboen
2,840 PointsI have recheck and followed Mr Pasan Instructions at all.... instead my icon still not change either the information humidity and rain
dunno where going wrong
Current Weather
<p> enum Icon: String {
case ClearDay = "clear-day"
case ClearNight = "clear-night"
case Rain = "rain"
case Snow = "snow"
case Sleet = "sleet"
case Wind = "wind"
case Fog = "fog"
case Cloudy = "cloudy"
case PartlyCloudyDay = "partly-cloudy-day"
case PartlyCloudyNight = "partly-cloudy-night"
func toImage() -> UIImage? {
var imageName: String
switch self {
case .ClearDay:
imageName = "clear-day.png"
case .ClearNight:
imageName = "clear-night.png"
case .Rain:
imageName = "rain.png"
case .Snow:
imageName = "snow.png"
case .Sleet:
imageName = "sleet.png"
case .Wind:
imageName = "wind.png"
case .Fog:
imageName = "fog.png"
case .Cloudy:
imageName = "cloudy.png"
case .PartlyCloudyDay:
imageName = "cloudy-day.png"
case .PartlyCloudyNight:
imageName = "cloudy-night.png"
}
return UIImage(named: imageName)
}
struct CurrentWeather {
let tempature: Int?
let humidity: Int?
let precipProbability: Int?
let summary: String?
var icon: UIImage? = UIImage(named: "default.png")
init(weatherDictionary: [String: AnyObject]) {
tempature = weatherDictionary["temperature"] as? Int
if let humidityFloat = weatherDictionary["humidity"] as? Double {
humidity = Int(humidityFloat * 100)
} else {
humidity = nil
}
if let precipFloat = weatherDictionary["precipProbability"] as? Double {
precipProbability = Int(precipFloat * 100)
} else {
precipProbability = nil
}
summary = weatherDictionary["summary"] as? String
if let iconString = weatherDictionary["icon"] as? String,
let weatherIcon: Icon = Icon(rawValue: iconString){
icon = weatherIcon.toImage()
}
}
</p>