CODEWITHSUNDEEP
iosswift
Vix Hunk
Vix Hunk

Reputation: 323

Getting UiView tag when touched

I have developed a UIView from For loop and basically it is create 3 Views from loop. and I have to add touch gesture on every View to call a method but I am unable to get current selected UIView.tag when I tap on it. it is only showing the .tag of the last view. here is my code.

    for i in 0 ... 2 {
            let productView = UIView()
                productView.tag = i
                productView.isUserInteractionEnabled = true
                let producttap = UITapGestureRecognizer(target: self, action: #selector(self.ProductTapped))
                productView.addGestureRecognizer(producttap)
                productView.frame = CGRect(x: xOffset, y: CGFloat(buttonPadding), width: 200, height: scView1.frame.size.height)
                xOffset = xOffset + CGFloat(buttonPadding) + productView.frame.size.width
                scView1.addSubview(productView)
            productIndex = productView.tag
}

and here is the method that I am calling from every UIView touch.

@objc func ProductTapped() {
        print("",productIndex)
    }

Upvotes: 4

Views: 1331

Answers (2)

Tj3n
Tj3n

Reputation: 9923

Your code should be using delegate/callback closure, but if you want to keep using tag, try change it to:

    @objc func ProductTapped(_ sender: UITapGestureRecognizer) {
        if let view = sender.view {
            print(view.tag)
        }
    }

and the gesture attach to let producttap = UITapGestureRecognizer(target: self, action: #selector(self.ProductTapped(_:)))

productIndex does nothing here since it got overwritten on the loop

Upvotes: 6

Warren Burton
Warren Burton

Reputation: 17372

productIndex currently has no relationship to the tap gestures that you attach your views. You do set productIndex in the the loop but that's irrelevant to your gesture.

Perhaps you want

let producttap = UITapGestureRecognizer(target: self, action: #selector(productTapped(_:))

and

@objc func productTapped(_ gesture: UITapGestureRecognizer) {
    print("tag is",gesture.view.tag)
}

Upvotes: 0

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