Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Object-Oriented Swift Inheritance Overriding Methods

Raj Wilhoit
Raj Wilhoit
1,571 Points
Posted by Raj Wilhoit
Raj Wilhoit
1,571 Points

This seems broken... Xcode doesn't work either.

I'm unable to overload it correctly.

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

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

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

class RoundButton: Button {
  var cornerRadius: Double = 5.0
  override func incrementBy(points: Double = 7.0){
    super.incrementBy(points)
  }
}
Robert Bojor
Robert Bojor
Courses Plus Student 29,439 Points
Robert Bojor
Robert Bojor
Courses Plus Student 29,439 Points

Get rid of that "= 7.0" from the override and it will be fine. Just tested it on a Playground and it worked fine, without that value there.