Swift - add gesture recognizer to object in table cell

Question

I'm attempting to add a gesture recognizer to an object (an image, specifically) in a table view cell. Now, I'm familiar with gesture recognizers, but am left slightly confused as to how to set this up. The actual table cell doesn't have a viewDidLoad method, so I don't think I can declare the gesture recognizer there.

This question (UIGestureRecognizer and UITableViewCell issue ) seems to be related, however the answer is in objective C, and unfortunately I'm only fluent in swift.

If anybody could perhaps help me out on how I'd go about adding a gesture recognizer to an object in a table cell (NOT the whole tableview), or even perhaps aid me in translating the answer from the above link to swift, I'd be grateful

score 16 · Accepted Answer · answered Aug 29 '15 at 21:00

Here's a quick Swift-translation of the linked post's solution, adding the swipe gesture recognizer to the UITableView and then determining which cell the swipe happened on:

class MyViewController: UITableViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        var recognizer = UISwipeGestureRecognizer(target: self, action: "didSwipe")
        self.tableView.addGestureRecognizer(recognizer)
    }

    func didSwipe(recognizer: UIGestureRecognizer) {
        if recognizer.state == UIGestureRecognizerState.Ended {
            let swipeLocation = recognizer.locationInView(self.tableView)
            if let swipedIndexPath = tableView.indexPathForRowAtPoint(swipeLocation) {
                if let swipedCell = self.tableView.cellForRowAtIndexPath(swipedIndexPath) {
                    // Swipe happened. Do stuff!
                }
            }
        }
    }

}

Although both answers were correct, I chose this one as it was more complete. Thankyou so much :) — dan martin, Aug 30 '15 at 19:08

bpolat · Answer 2 · 2015-08-30T08:27:23.710

here you go. Swift version of the solution you mentioned in your question

"Instead of adding the gesture recognizer to the cell directly, you can add it to the tableview in viewDidLoad.

In the didSwipe-Method you can determine the affected IndexPath and cell as follows:"

func didSwipe(gestureRecognizer:UIGestureRecognizer) {
    if gestureRecognizer.state == UIGestureRecognizerState.Ended {
        let swipeLocation = gestureRecognizer.locationInView(self.tableView)
          if let swipedIndexPath = self.tableView.indexPathForRowAtPoint(swipeLocation){
            if let swipedCell = self.tableView.cellForRowAtIndexPath(swipedIndexPath!){


      }
    }
  }
}

score 1 · Answer 3 · answered Jul 22 '18 at 01:51

Update for Swift 4:

let swipeGestueRecognizer = UISwipeGestureRecognizer(target: self, action: #selector(didRecognizeSwipeGestue(_:)))
self.view.addGestureRecognizer(swipeGestueRecognizer)

And the selector:

@objc func didRecognizeSwipeGestue(_ sender: UISwipeGestureRecognizer) {

    if sender.state == UIGestureRecognizerState.ended {
        let location = sender.location(in: self.tableView)
        if let indexPath = tableView.indexPathForRow(at: location) {
            if let cell = self.tableView.cellForRow(at: indexPath) {
                // todo
            }
        }
    }
}

Swift - add gesture recognizer to object in table cell

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