CODEWITHSUNDEEP
swiftdelegatesprotocols
Ignacio Oroná
Ignacio Oroná

Reputation: 4399

Value of Type has no member Delegate error

So, I have the following code snippet:

protocol AllFiltersButtonsProtocol: AnyObject{
  func didTapReset()
  func didTapApply()
}

class AllFiltersUberResetApplyTableViewCell: UITableViewCell {

  var delegate: AllFiltersButtonsProtocol?

  var leftButton: UIButton = {
    let leftButton = UIButton(.secondary, .large)
    leftButton.setTitle("Reset", for: .normal)
    leftButton.add(closureFor: .touchUpInside) { [self] in
      self.delegate.didTapReset()
    }
    return leftButton
  }()

But I am consistently getting the following error:

Value of type '(AllFiltersUberResetApplyTableViewCell) -> () -> AllFiltersUberResetApplyTableViewCell' has no member 'delegate What is wrong with my code? Why is is it saying there is no member delegate when there clearly is a member?

Upvotes: 1

Views: 794

Answers (1)

Jithin
Jithin

Reputation: 943

leftButton will be initialised before UITableViewCell is completely initialised and self exists. So You cannot use self inside var leftButton: UIButton. Try making it a lazy var to make sure that it gets called only when it is accessed for the first time.

lazy var leftButton: UIButton = {
    let leftButton = UIButton(.secondary, .large)
    leftButton.setTitle("Reset", for: .normal)
    leftButton.add(closureFor: .touchUpInside) { [self] in
      self.delegate.didTapReset()
    }
    return leftButton
  }()

Upvotes: 1

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