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iOS Object-Oriented Swift 2.0 Complex Data Structures Custom Initializers

Posted by Cody Perryman
Cody Perryman
4,209 Points

Not understanding why my code is not working.

Not really sure why my code is not working. Any help would be greatly appreciated.

structs.swift 
struct RGBColor {
    let red: Double
    let green: Double
    let blue: Double
    let alpha: Double

    let description: String

    init(red: Double = 86.0, green: Double = 191.0, blue: Double = 131.0, alpha: Double = 1.0, description: String = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)") {
        self.red = red
        self.green = green
        self.blue = blue
        self.alpha = alpha
        self.description = description
    }
}

2 Answers

Andres Aguero
Andres Aguero
30,545 Points
Andres Aguero
Andres Aguero
30,545 Points

You need to get rid of the values inside the init parameters and place them inside the init method like below.

    init(red: Double, green: Double, blue: Double, alpha: Double) {
        self.red = red
        self.green = green
        self.blue = blue
        self.alpha = alpha

        self.description = ("red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)")
    }
Yuri Ramocan
Yuri Ramocan
2,920 Points
Yuri Ramocan
Yuri Ramocan
2,920 Points

Building upon what Andres mentioned above, if you want to initialize those values for a new RGBColor object, you'd call something like this in your code:

let softGreen = RGBColor(red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0)