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iOS Object-Oriented Swift Inheritance Inheritance and Initializers

Posted by Niyaz Ahamed
Niyaz Ahamed
4,243 Points

Why is this solution is giving an error super.init(width: Double, height: Double)

Why is this solution is giving an error super.init(width: Double, height: Double)

Button.swift 
class Button {
  var width: Double
  var height: Double

  init(width:Double, height:Double){
    self.width = width
    self.height = height
  }

  func scaleBy(points: Double){
    width += points
    height += points
  }
}

class RoundButton: Button {
  var cornerRadius: Double = 5.0

  init(width:Double,height:Double,cornerRadius:Double){
    self.cornerRadius = cornerRadius
  }  
}

2 Answers

Joe Dayvie
Joe Dayvie
11,956 Points
Joe Dayvie
Joe Dayvie
11,956 Points

Niyaz,

I believe it's because the last portion of your code:

  init(width:Double,height:Double,cornerRadius:Double){
    self.cornerRadius = cornerRadius
  }

You called cornerRadius but you have two other parameters in the init method which have not been mentioned inside the brackets. After the self.cornerRadius, you need to call the width and height from the previous init method, which would be exactly what you said in the title.

I hope this helps =)

Joe

Niyaz Ahamed
Niyaz Ahamed
4,243 Points
Niyaz Ahamed
Niyaz Ahamed
4,243 Points

Thanks Joe,

It helped. I overlook the solution and was passing wrong parameters to he parent init

Niyaz