UIImageView and TapGesture in Swift 3

I tried everthing to trigger a tap gesture recognizer in my code but until know I don't have succeeded.

Can you explain the symptoms of this failure? If LCS’s guess is right, you should see an unrecognised selector exception. If you don’t see that, there’s probably some other issue in play.

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—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"

Tks @LCS and @eskimo,

I'm not using Storyboard to do a component. The output don't show any error and the application don't brake too.

It's like that the option isUserInteractionEnabled don't do what need to do.

I'll post all my class to help :

import UIKit
class ImagePlayerView: UIImageView {
   
    let view: UIView = {
        let view = UIView()
        view.backgroundColor = .blue
       
        return view
    }()
   
    let activityIndicatorView: UIActivityIndicatorView = {
        let aiv = UIActivityIndicatorView(activityIndicatorStyle: .white)
        aiv.translatesAutoresizingMaskIntoConstraints = false
        aiv.startAnimating()
        return aiv
    }()
   
    let controlsContainerView: UIView = {
        let view  = UIView()
        view.backgroundColor = UIColor(white: 0, alpha : 1)
        return view
    }()
   
    var fullImageView: UIImageView = {
       
        let iv = UIImageView()
        iv.contentMode = .scaleAspectFit
        
        iv.isUserInteractionEnabled = true
        iv.translatesAutoresizingMaskIntoConstraints = false
       
        return iv
    }()
   
   
   
    override init(frame: CGRect){
        super.init(frame: frame)
       
       
        controlsContainerView.frame = frame
        addSubview(controlsContainerView)
       
        controlsContainerView.addSubview(fullImageView)
       
        fullImageView.centerXAnchor.constraint(equalTo: centerXAnchor).isActive = true
        fullImageView.centerYAnchor.constraint(equalTo: centerYAnchor).isActive = true
        fullImageView.widthAnchor.constraint(equalToConstant: 50).isActive = true
        fullImageView.heightAnchor.constraint(equalToConstant: 50).isActive = true
       
    }
    
   
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
   
  
   
}
class ImageLaucher:NSObject{
   
    func showImage(startingImageView : UIImageView){
       
       
        let startFrame = startingImageView.superview?.convert(startingImageView.frame, to: nil)
       
        let zoomingImageView = UIImageView(frame: startFrame!)
        zoomingImageView.backgroundColor = .red
        zoomingImageView.image = startingImageView.image
       
        zoomingImageView.isUserInteractionEnabled = true
        let gesture = UITapGestureRecognizer(target: self, action: #selector(handleZoomOut(sender:)))
        zoomingImageView.addGestureRecognizer(gesture)
       
       
        if let keyWindow = UIApplication.shared.keyWindow {
            let blackBackgroundView = UIView(frame: keyWindow.frame)
            blackBackgroundView.backgroundColor = .black
       
            blackBackgroundView.alpha = 0
           
            keyWindow.addSubview(blackBackgroundView)
           
            keyWindow.addSubview(zoomingImageView)
           
            UIView.animate(withDuration: 0.5, delay: 0, options: .curveEaseOut, animations: {
               
                blackBackgroundView.alpha = 1
                let height = (startFrame?.height)! / startFrame!.width * keyWindow.frame.width
               
                zoomingImageView.frame = CGRect(x: 0, y: 0, width: keyWindow.frame.width, height: height)
                zoomingImageView.center = keyWindow.center
               
            }, completion: nil)
           
        }
       
      
    }
   
    func handleZoomOut(sender: UITapGestureRecognizer) {
        print("print zoom out")
       
       
    }
   
   
}

Tks again.

Thank you for all your advices , I'll do the changes.

I Think the problem with the gesture is doing because when I do the zoom the application is lost the context....

Just to post a solution :

I forgot to put context in cell before call showImage function 😟

cell.pacienteDetalheCell = self

But code is work know.

Tks all