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iOS Swift 2.0 Protocols Swift 2.0 Protocols Protocols With Methods

shane reichefeld
PLUS
shane reichefeld
Courses Plus Student 2,232 Points

What is the question asking me to do?

help

protocols.swift
// Declare protocol here
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)
  }
}

1 Answer

Alexander Smith
Alexander Smith
10,476 Points

Well your protocol is correct. They want you to make the class WifiLamp use the protocol you created...

// Declare protocol here
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: ColorSwitchable {
  let state: LightState
  var color: Color

  init() {
    self.state = .On
    self.color = .RGB(0,0,0,0)
  }

  func switchColor(color: Color){
    self.color = color
  }
}

then since WifiLamp must follow this protocol it needs to implement the func switchColor.