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iOS Object-Oriented Swift Inheritance Inheritance and Initializers

Posted by Colin Suzuki
Colin Suzuki
1,763 Points

Am I initializing this incorrectly?

Not quite sure what I have incorrect for this subclass initializer. Would appreciate some help!

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

1 Answer

Colin Suzuki
Colin Suzuki
1,763 Points

Looks like it should actually be:

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

Cheers