How to pass multiple parameters addTarget?

Question

I need to pass two parameters. How can i pass by addTarget action. If it possible what changes i need to perform?

This is my current code.

button.tag = numbers[index];
button.addTarget(self, action: #selector(ViewController.buttonClicked(_:)), forControlEvents:UIControlEvents.TouchUpInside)

func buttonClicked(sender: UIButton){
     print(sender.tag)
}

I hope this answer useful :- http://stackoverflow.com/questions/33498064/pass-multiple-parameters-to-addtarget?rq=1 — Mitul Marsoniya, Jul 08 '16 at 06:52
i use ActionKit project for this kind of problems.With closures mostly you don't need to carry parameters around https://github.com/ActionKit/ActionKit — Ali Kıran, Jul 08 '16 at 11:14

Mitul Marsoniya · Accepted Answer · 2016-07-08T09:36:47.190

If you want more then one perimeter pass then you can use a objc_setAssociatedObject.
Any thing will be pass like Dictionary,Array,String,Int.

import ObjectiveC

extension UIButton {
private struct AssociatedKeys {
    static var WithValue = "KeyValue"
}

@IBInspectable var withValue: String? {
    get {
        return objc_getAssociatedObject(self, &AssociatedKeys.WithValue) as? String
    }
    set {
        if let newValue = newValue {
            objc_setAssociatedObject(
                self,
                &AssociatedKeys.WithValue,
                newValue as NSString?,
                objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN
            )
        }
    }
}
}

You need to use above extension:-

import ObjectiveC

button.tag = numbers[index];
    button.addTarget(self, action: #selector(ViewController.buttonClicked(_:)), forControlEvents:UIControlEvents.TouchUpInside)

    //set velue
   button.withVelue = "1,2,3,4"

func buttonClicked(sender: UIButton){

     print(sender.withVelue)
}

It say: fatal error: unexpectedly found nil while unwrapping an Optional value — Tuguldur, Jul 08 '16 at 07:51
Thanks. It was working :) And I have a one question. sender.withValue is printing Optional("1,2,3,4"). How can I remove Optional()? — Tuguldur, Jul 12 '16 at 04:54
Oh. Int(sender.withValue) is working :) Thanks @mitul marsonia — Tuguldur, Jul 12 '16 at 05:16

How to pass multiple parameters addTarget?

1 Answers1