Class Variable not Being Set - swift

Question

This is a weird one. I have several classes so far in a test app and everything has been going swimmingly. However, I'm getting the error EpisodePlayerController.Type does not have a member named episodeData when I declare otherThing below.
import UIKit
class EpisodePlayerController: UIViewController {
var episodeData = "Hi"
var otherThing = episodeData
}
Tried restarting Xcode, restarting Mac, recreating the class, renaming the class, etc. At a loss. Might be a bug in my Xcode install, but I'd love to be wrong and not have wait for another release. ;)

Answer 1

This seems to solve the problem:
class EpisodePlayerController: UIViewController {
var episodeData = "Hi"
var otherThing = ""
init(){
otherThing = episodeData
}
}
Take a look at the property reference.

Answer 2

The problem is that as far as Swift is concerned, none of your properties have values until the class is fully initialized. Before that point, you can't interact with 'self' implicitly. (this includes its properties and functions.) I think your class is a good candidate for the #lazy attribute:
import UIKit
class EpisodePlayerController: UIViewController {
var episodeData: String = "Hi"
#lazy var otherData: String = self.episodeData
}
You could also include more complex stuff if you need to:
import UIKit
class ClassTwo {
var episodeData = "Hi"
#lazy var otherData: String = {
// Additional parameters
return self.episodeData
}()
}
This way, you can access self because the property 'otherData' won't be called until 'episodeData' is fully initialized.

Answer 3

Because this view was being called via a segue, I wound up making the variable optional and then calling a function from the segue to set the optional variable and then trigger any function dependent on that variable:
import UIKit
class YourController: UIViewController {
var yourData:NSString?
func setYourData(value:NSString) {
self.yourData = value
dependentFunction()
}
A similar effect can be achieved using the didSet and/or willSet methods:
import UIKit
class YourController: UIViewController {
var yourData:NSString? {
didSet {
// Dependent functionality
}
}
func setYourData(value:NSString) {
self.yourData = value
}
Also, for reference, the segue looks like this:
func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
if segue.identifier == "yourSegue" {
var destination:YourController = segue.destinationViewController as YourController
destination.setYourData(someData)
}
}

Answer 4

i think this code will help.
class Square: NamedShape {
var sideLength: Double
init(sideLength: Double, name: String) {
self.sideLength = sideLength
super.init(name: name)
numberOfSides = 4
}
func area() -> Double {
return sideLength * sideLength
}
override func simpleDescription() -> String {
return "A square with sides of length \(sideLength)."
}
}
let test = Square(sideLength: 5.2, name: "my test square")
test.area()
test.simpleDescription()”