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iOS Object-Oriented Swift Inheritance What is Inheritance?

Posted by David Rodriguez Saavedra
David Rodriguez Saavedra
3,574 Points

anyone can help?

i dont know why doesnt works

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

  init(width:Double, height:Double){
    self.width = width
    self.height = height
  }
  class RoundButton: Button {
    var cornerRadius = 5.0


  }
}

var rounded = RoundButton()

1 Answer

Sean T. Unwin
Sean T. Unwin
28,690 Points
Sean T. Unwin
Sean T. Unwin
28,690 Points

We need to create a new class, RoundButton, that inherits from the Button class. We don't create a sub-class within the parent class as it is it's own entity.

I recommend watching the What is Inheritance lesson where Amit Bijlani explains how this is accomplished starting around 1:51.