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iOS Protocols in Swift Protocol Basics Protocols With Methods

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

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

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