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iOS Protocols in Swift Protocol Basics Protocols With Methods

Bastian Petersson
Bastian Petersson
9,164 Points
Posted by Bastian Petersson
Bastian Petersson
9,164 Points

I Don't understand what I am doing wrong? Please help anyone

help please

protocols.swift 
protocol ColorSwitchable {
    func switchColor(color: Color)
}


enum LightState {
    case on, off
}

enum Color {
    case rgb(Double, Double, Double, Double)
    case hsb(Double, Double, Double, Double)
}

class WifiLamp {
    let state: LightState
    var color: Color

    init() {
        self.state = .on
        self.color = .rgb(0,0,0,0)
    }
}
Kenan Bateman
Kenan Bateman
16,715 Points
Kenan Bateman
Kenan Bateman
16,715 Points

looks like an issue with the external parameter label (which in this exercise should have been empty)

protocol ColorSwitchable {
    func switchColor(_ color: Color)
}

1 Answer

Luc Bernardin
Luc Bernardin
3,726 Points
Luc Bernardin
Luc Bernardin
3,726 Points

The task specifically asks for an external argument being set with underscore, so try func switchColor(_ color: Color) ...