Getting Tag from Tap Gesture Recognizer - ios

Question

I've got an array of UIImageViews and have programmatically assigned tap gesture recognizers to them.
myImages.forEach{ UIImageView in
let tap = UITapGestureRecognizer(target: self, action: #selector(handleTap(gesture:)))
tap.numberOfTapsRequired = 1
tap.delegate = self
view.addGestureRecognizer(tap)
}
What's the best way to assign a sender to each (or determine which image was tapped another way)? I've unsuccessfully tried
var tag = sender.view!.tag
Thanks!

Answer 1

in here you need to follow two steps,
step 1
assign the tags for imageview before append to your myImages array.
step 2
get the tag from imageview array and assign to your each gesture
myImages.forEach{
let tap = UITapGestureRecognizer(target: self, action: #selector(handleTap(_:)))
tap.numberOfTapsRequired = 1
tap.view?.tag = $0.tag
$0.isUserInteractionEnabled = true
$0.addGestureRecognizer(tap)
}
and handle the func like
#objc func handleTap(_ sender: UITapGestureRecognizer) {
guard let getTag = sender.view?.tag else { return }
print("getTag == \(getTag)")
}

Answer 2

You can use the block provided by UITapGestureRecognizer init to access your images in place.
myImages.forEach { image in
let tap = UITapGestureRecognizer(block: {[weak self] _ in
//Do your stuff here
//print("Image Tapped:", image.debugDescription)
}, delegate: self)
tap.numberOfTapsRequired = 1
image.addGestureRecognizer(tap)
}

Answer 3

If you want to set UITapGestureRecognizer in UICollectionView or UITableView cell then below solution is useful for us.
Step 1 Assign the UITapGestureRecognizer to particuller textview or other view in UICollectionView or UITableView cell.
cell.textView?.delegate = self
cell.textView?.isEditable = false
cell.textView?.isSelectable = true
let tap = UITapGestureRecognizer(target: self, action:#selector(self.onclickLink(_:)))
cell.textView?.tag = indexPath.row
tap.numberOfTapsRequired = 1
cell.textView?.addGestureRecognizer(tap)
Step 2 Get the tag from UITextView or other View in onclick action.
#IBAction func onclickLink(_ sender: UITapGestureRecognizer) {
print("indexPathRow == \(sender.view?.tag ?? 0)")
}