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iOS Protocols in Swift Protocol Basics Protocols With Methods

Posted by Chyngyzkan Samatov
Chyngyzkan Samatov
1,731 Points

HELP ME PLEASE

WHY IT'S NOT WORKING ?

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 : ColorSwitchable {
  let state: LightState
  var color: Color

  init() {
    self.state = .on
    self.color = .rgb(0,0,0,0)
  }

  func switchColor(_ color: Color) {
    Color.hsb(123.3, 223.3, 323.3, 423.3)
  }
}

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points
Jhoan Arango
Jhoan Arango
14,575 Points

Hello,

The challenge is asking you to set the WifiLamp object to a "new color".

So for example: 

// **** Step 1
// If I was to make an instance of Wifi Lamp, I would do so like this

// Instance
let myWifiLamp = WifiLamp()

// **** Step 2
// If I wanted to change the color of the lamp I would have to call the "switchColor" method

 myWifLamp.switchColor(Color.rgb(123.3, 223.3, 323.3, 423.3))

// OR

let myNewColor = Color.hsb(22.0, 22.0, 22.0, 22.00)
wifiLamp.switchColor(myNewColor)

So in order to implement this method what shall we do? 

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

Hope this helps you a bit.

Chyngyzkan Samatov
Chyngyzkan Samatov
1,731 Points

I got it Thanks a lot man! May God bless u million times! Appreciate it!)