swift multiple views to tap gestures in array - ios

Question

I have an image slider where multiple images are added to a scrollview. Each is stored in an array of my custom data type (named Slide). I cycle through them like this:
for (index, slide) in slides.enumerated() {
let imageView = UIImageView()
imageView.image = UIImage(named: slide.image) //set the imageView with the imageName in this slide
imageView.contentMode = .scaleAspectFit
let xPos = self.view.frame.width * CGFloat(index) //calculate x depending upon slide index
imageView.frame = CGRect(x: xPos, y: -200, width: self.SVSlider.frame.width, height: self.SVSlider.frame.height)
SVSlider.contentSize.width = SVSlider.frame.width * CGFloat(index + 1) //add slide image to scrollview
SVSlider.addSubview(imageView)
//add tap function to slide
imageView.isUserInteractionEnabled = true
imageView.tag = index
let tapImage = UITapGestureRecognizer(target: self, action: #selector(slideAction(_:)))
imageView.addGestureRecognizer(tapImage)
}
Each slide image is attached to the method "slideAction", below:
#objc func slideAction(_ sender: UITapGestureRecognizer) {
let selName = slides[(sender.view?.tag)!].target
NSObject.perform(Selector(selName))
}
But the application throws an error when I click an image. By debugging I can see that the "tag" is correctly set to the slide index number. I want to perform the target action held in the slide object. (Currently the target is a String of the method name - ending with ':').
How can I get the "slideAction" to goto the method in the slide object?

Answer 1

Try this ,create target method in the custom class callMethodDirectly and call it
#objc func slideAction(_ sender: UITapGestureRecognizer) {
let selName = slides[(sender.view?.tag)!]
selName.callMethodDirectly()
}
class slide:NSObjcet
{
func callMethodDirectly()
{
// implement target code here
}
}