Selector syntax for swift 3.0

Question

I am trying to add target into button this way:

btnAll.addTarget(self, action: #selector(buttonTapped(_:)), for: .touchUpInside)

But it is giving me an error:

Use of unresolved identifier 'buttonTapped'

But I declared function like:

func buttonTapped(sender: UIButton) {

    print("All Tapped")
}

Can anybody tell me what is the correct way to do this in swift 3.

Show us your buttonTapped method. IBAction methods can have 0, 1, or 2 parameters depending on how you set them up, and we can't know what form you used. — Duncan C, Aug 29 '16 at 11:53

Anbu.Karthik · Answer 1 · 2018-10-15T04:48:55.743

83

Add target like,

should now be written as #selector(buttonTapped(sender:)) or use #selector(buttonTapped(_:))

btnAll.addTarget(self, action: #selector(buttonTapped(_:)), for: .touchUpInside)

then change your function like,

@objc func buttonTapped(_ sender : UIButton){

 ....
 }

edited Oct 15 '18 at 04:48

answered Aug 29 '16 at 11:51

Anbu.Karthik

11

This is what I have already answered.. :) – Dharmesh Kheni Aug 29 '16 at 12:13
It changes function to @objc – Nike Kov Nov 30 '16 at 05:31
Sorry, i mean, in protocol extensions it needed to change the function to @objc – Nike Kov Nov 30 '16 at 05:40

score 22 · Answer 2 · answered Aug 29 '16 at 11:51

22

You can do it this way:

btnAll.addTarget(self, action: #selector(buttonTapped(sender:)), for: .touchUpInside)

answered Aug 29 '16 at 11:51

Dharmesh Kheni

2 Answers2