CODEWITHSUNDEEP
iosswiftuitapgesturerecognizer
KexAri
KexAri

Reputation: 3977

Cant pass UIImageView in UITapGestureRecognizer

I'm trying to pass a UIImageView as a parameter through a UITapGestureRecognizer, e.g. addTapGestureRecognizer(passedView: questionImage) where questionImage is a UIImageView. Code like so:

    // MARK: Tap Gesture Recognizer

    func addTapGestureRecognizer(passedView: UIView) {
        let photoTapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(didTapPhoto(_:)))
        photoTapGestureRecognizer.numberOfTapsRequired = 1
        passedView.isUserInteractionEnabled = true
        passedView.addGestureRecognizer(photoTapGestureRecognizer)

    }

    func didTapPhoto(_ sender: UITapGestureRecognizer) {
        print("Did detect the tap")
        if let imageView = sender as? UIImageView {
            print("Is an image view")
        }

    }

When I tap the UIImageView it detects the tap and prints the first statement. However it will not cast sender into a UIImageView and print the second statement. What am I doing wrong here?

Upvotes: 0

Views: 103

Answers (2)

Matloob Hasnain
Matloob Hasnain

Reputation: 1037

if let imageView = sender.view as? UIImageView {
        print("Is an image view")
    }

Upvotes: 0

Rajat
Rajat

Reputation: 11127

You need to pass sender.view in order to get which view is tapped

func didTapPhoto(_ sender: UITapGestureRecognizer) {
    print("Did detect the tap")
    if (sender.view as? UIImageView) != nil {
        print("Is an image view")
    }

}

Upvotes: 2

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