Passing param value to selector

Question

I am declaring a selector and want to pass a label object as the parameter and not able to do so.

Below is my code:

public func animateLabelText(label: UILabel) {
 caDisplayLink = CADisplayLink(target: self, selector: #selector(changeLabelText(label: label)))
}

@objc private func changeLabelText(label: UILabel) {
    // Do something
}

I am seeing this error - Argument of '#selector' does not refer to an '@objc' method, property, or initializer.

How do I pass the parameter to selector?

Answer 1

The signature should be as following

public func animateLabelText(label: UILabel) {
  caDisplayLink = CADisplayLink(target: self, 
                              selector: #selector(changeLabelText(_:)))
}

@objc private func changeLabelText(_ label: UILabel) {
    // Do something
}