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iOS Protocols in Swift Protocol Basics Protocols With Methods

Posted by Fredrick Barrett
Fredrick Barrett
2,068 Points

I'm stumped

I've been at this for an embarrassingly long amount of time and I need some guidance. What do I do next?

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)
  }
}
missgeekbunny
missgeekbunny
37,033 Points
missgeekbunny
missgeekbunny
37,033 Points

What do the instructions want you to do at this point?

1 Answer

Addison Francisco
Addison Francisco
9,561 Points
Addison Francisco
Addison Francisco
9,561 Points

Hi Fredrick,

Assuming you’re at task 2 of 2, it’s asking you first to have WifiLamp conform to the protocol ColorSwitchable

class WifiLamp: ColorSwitchable {
...
    func switchColor(_ color: Color) {}
}

Then it’s asking you to implement, within the class instance method, code that will assign the class property color to the value of the method’s parameter color

class WifiLamp: ColorSwitchable {
...
    func switchColor(_ color: Color) {
        self.color = color
    }
}

Does this make sense?

Fredrick Barrett
Fredrick Barrett
2,068 Points

Yes thank you so much, it made it clearer