Create gesture and add it to your imageview in ViewDidLoad():
let standardPinch = UIPinchGestureRecognizer(target: self, action: #selector(pinch))
standardPinch.delegate = self
myImageView.isUserInteractionEnabled = true
myImageView.addGestureRecognizer(standardPinch)
Add pinch() method to handle resizing of UIImageView:
@objc func pinch(_ sender: UIPinchGestureRecognizer){
guard let targetView = sender.view else {return}
targetView.transform = targetView.transform.scaledBy(x: sender.scale, y: sender.scale)
sender.scale = 1
}
