How to call gesture tap on UIView programmatically in swift

You need to initialize UITapGestureRecognizer with a target and action, like so:

let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTap(_:)))myView.addGestureRecognizer(tap)

Then, you should implement the handler, which will be called each time when a tap event occurs:

@objc func handleTap(_ sender: UITapGestureRecognizer? = nil) {    // handling code}

So now calling your tap gesture recognizer event handler is as easy as calling a method:

handleTap()

For anyone who is looking for Swift 3 solution

let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTap(_:)))view.addGestureRecognizer(tap)view.isUserInteractionEnabled = trueself.view.addSubview(view)// function which is triggered when handleTap is called@objc func handleTap(_ sender: UITapGestureRecognizer) {     print("Hello World")  }

For Swift 4:

let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTap(_:)))view.addGestureRecognizer(tap)view.isUserInteractionEnabled = trueself.view.addSubview(view)// function which is triggered when handleTap is called@objc func handleTap(_ sender: UITapGestureRecognizer) {    print("Hello World")}

In Swift 4, you need to explicitly indicate that the triggered function is callable from Objective-C, so you need to add @objc too your handleTap function.

See @Ali Beadle 's answer here: Swift 4 add gesture: override vs @objc