Swift: Multiple UIButton in a IndexPath in a UICollectionViewCell programmatically, next addTarget does not click

Question

I made multiple UIButton in a indexPath in a UICollectionViewCell programmatically. now i want to print "clicked add to favourite" but it is not printing anything after click UIButton. the UIButton does view everything except addTarget function not click.

import UIKit

//**UICollectionViewCell**
class DescriptionCell: UICollectionViewCell, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout {


    override init(frame: CGRect) {
        super.init(frame: frame)


        setupCell()

    }

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }



    lazy var addToCart: UIButton = {

        let btn = UIButton()
        btn.setTitle("Add to favourite", for: .normal)
        btn.isUserInteractionEnabled = true
        btn.setTitleColor(.white, for: .normal)

        btn.backgroundColor = UIColor.orange
        btn.titleLabel?.font = UIFont.boldSystemFont(ofSize: 8)
        btn.titleLabel?.textAlignment = .right

        // addToCart not click
        btn.addTarget(self, action: #selector(addToCartTarget), for: .touchUpInside)

        btn.layer.cornerRadius = 12

        return btn
    }()




    func setupCell() {



        addSubview(addToCart)



        addConstraintsWithFormat("H:|-80-[v0]-80-|", views: addToCart)
             addConstraintsWithFormat("V:|-380-[v0(25)]|", views: addToCart)


    }



    func addToCartTarget() {

        print("you clicked add to favourite")
    }




}

@AzmalTech There must be issue with button view not addTarget, Try adding simple button first with target only and check whether view is designed properly on screen — Abhishek, Sep 12 '17 at 07:05
You can use view debugging of Xcode to check dynamic button frame to verify its size — Abhishek, Sep 12 '17 at 07:07
try this btn.addTarget(self, action: #selector(self.addToCartTarget), for:.touchUpInside) func addToCartTarget(_ sender : UIButton) { print("you clicked add to favourite") } — karthikeyan, Sep 12 '17 at 07:16
@karthikeyan show this error `Expected expression in list of expressions` — Quiet Islet, Sep 12 '17 at 07:20
i am using same code only, here working Did you add this line btn.translatesAutoresizingMaskIntoConstraints = false — karthikeyan, Sep 12 '17 at 07:22
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/154206/discussion-between-azmal-tech-and-karthikeyan). — Quiet Islet, Sep 12 '17 at 07:24
I think you should try this: btn.addTarget(self, action: #selector(self.addToCartTarget(_:)), for:.touchUpInside) and then follow @karthikeyan's suggestion — 3stud1ant3, Sep 12 '17 at 07:25
@3stud1ant3 i got this error `Value of type 'DescriptionCell' has no member 'addToCartTarget'` — Quiet Islet, Sep 12 '17 at 07:28
did you change `addToCartTarget` func like this: `func addToCartTarget(_ sender : UIButton) { print("you clicked add to favourite") }` ? — 3stud1ant3, Sep 12 '17 at 07:28
@3stud1ant3 the error is gone, but UIButton still not print in console after use your code — Quiet Islet, Sep 12 '17 at 07:31
@rmaddy sorry! i forget to say "i Added multiple UIButton in a indexPath in a collectionViewCell" — Quiet Islet, Sep 13 '17 at 14:23
@3stud1ant3 i am really sorry! i forget to say "i Added multiple UIButton in a indexPath in a collectionViewCell" — Quiet Islet, Sep 13 '17 at 14:24
call the method in only one time and check once the button action is called or not bro — Anbu.Karthik, Sep 14 '17 at 04:10
@Anbu.Karthik so you are going to say that "we can not put UILabel, textView and UIButton in a indexPath together. — Quiet Islet, Sep 14 '17 at 04:13
no no for testing purpose try the above code is only one time — Anbu.Karthik, Sep 14 '17 at 04:14
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/154400/discussion-between-azmal-tech-and-anbu-karthik). — Quiet Islet, Sep 14 '17 at 04:36
Please tell me one thing why you didn't add button in CollectionCell from Storyboard? — Usman Javed, Sep 14 '17 at 04:58
Next I want to know few things like is the any GestureRecognizer on CollectionViewViewController or not and next please set few things in your code like set background color of your cell and check button is in the cell boundary or not. — Usman Javed, Sep 14 '17 at 05:02
Ok then please set background color of Cell and tell me button is in Cell's boundary or not. — Usman Javed, Sep 14 '17 at 05:10
Brother! i have been unable to add pushViewController with this button in collectionViewCell. but added presentViewController by this code `self.window?.rootViewController?.present(ViewController(), animated: true, completion: nil)` — Quiet Islet, Sep 16 '17 at 11:54
@Anbu.Karthik please Answer this question on this link https://stackoverflow.com/questions/46639143/swift-json-parse-in-two-pickerview-between-country-and-city?noredirect=1#comment80228030_46639143 — Quiet Islet, Oct 09 '17 at 06:47

score 2 · Accepted Answer · answered Sep 12 '17 at 07:03

2

Try initializing button with frame like:

let btn = UIButton(frame: CGRect(x: 10, y: 10, width: 50, height: 20))

answered Sep 12 '17 at 07:03

laxman khanal

998
1
8
18

everything is ok of UIButton, just addTarget does not print anything after click button – Quiet Islet Sep 12 '17 at 07:05
I tested your code snippet and its working fine for me. – laxman khanal Sep 12 '17 at 07:07
sorry! i forget to say "i Added multiple UIButton in a indexPath in a collectionViewCell" – Quiet Islet Sep 13 '17 at 04:49
Brother! i have been unable to add pushViewController with this button in collectionViewCell. but added presentViewController by this code `self.window?.rootViewController?.present(ViewController(), animated: true, completion: nil)` – Quiet Islet Sep 16 '17 at 11:53
You can push view controllers to navigation controllers only, `navigationController?.pushViewController(activityTimesTVC, animated: true)`. For this you have to embed yor viewcontroller to navigationcontroller in storyboard. Go to Editor -> Embed In -> Navigation Controller. – laxman khanal Sep 18 '17 at 08:21

Swift: Multiple UIButton in a IndexPath in a UICollectionViewCell programmatically, next addTarget does not click

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