How to Call Gesture Tap on Uiview Programmatically in Swift

Swift - How to add tap gesture to array of UIViews?

You need

@objc func tapCard (sender: UITapGestureRecognizer) { 
     let clickedView = cardView[sender.view!.tag] 
     print("View tapped !" , clickedView ) 
}

No need to check state here as the method with this gesture type is called only once , also every view should have a separate tap so create it inside the for - loop

for index in cardView.indices  { 
   let tap = UITapGestureRecognizer(target: self, action: #selector(tapCard(sender: )))

How to Implement Tap Gesture on programmatically generated UIView inside UIScrollView in Swift 5

For anyone who might have same issue. Problem was with the gestures Context "self" as explained in detail here https://stackoverflow.com/a/53717065/2448688
Solved it by initializing Gesture as follows

var mediaTapRecognizer : UITapGestureRecognizer {
    let t = UITapGestureRecognizer(target: self, action: #selector(openMedia))
    return t
}

add tap gesture to a UILabel Programmatically

You're doing a couple things wrong...

// your code
label.frame.size.width = self.otherlinksStack.bounds.width
label.sizeToFit()

If you're adding the label to a stackView, there is no need to set its frame -- let the stack view handle that. If your stackView's alignment is set to .fill it will stretch the label to its width anyway. If it's not set to fill, the label will expand horizontally as needed, based on its text. So, also, no need to call .sizeToFit().

// your code
self.otherlinksStack.addSubview(label)

When add a view to a stack view, use .addArrangedSubview, otherwise it will be added overlaid on top of another view in the stack view.

This should work fine (it does in my quick test):

func createLabel() {

    let label = UILabel()

    label.text = "abc"
    label.numberOfLines = 0
    label.font = label.font.withSize(17) // my UIFont extension
    label.tag = 1

    // give the label a background color so we can see it
    label.backgroundColor = .cyan

    // enable user interaction on the label
    label.isUserInteractionEnabled = true

    // add the label as an Arranged Subview to the stack view
    self.otherlinksStack.addArrangedSubview(label)

    // create the gesture recognizer
    let labelTapGesture = UITapGestureRecognizer(target:self,action:#selector(self.doSomethingOnTap))

    // add it to the label
    label.addGestureRecognizer(labelTapGesture)

}

@objc func doSomethingOnTap() {
    print("tapped")
}

How to add a touch event to a UIView?

In iOS 3.2 and higher, you can use gesture recognizers. For example, this is how you would handle a tap event:

//The setup code (in viewDidLoad in your view controller)
UITapGestureRecognizer *singleFingerTap = 
  [[UITapGestureRecognizer alloc] initWithTarget:self 
                                          action:@selector(handleSingleTap:)];
[self.view addGestureRecognizer:singleFingerTap];

//The event handling method
- (void)handleSingleTap:(UITapGestureRecognizer *)recognizer
{
  CGPoint location = [recognizer locationInView:[recognizer.view superview]];

  //Do stuff here...
}

There are a bunch of built in gestures as well. Check out the docs for iOS event handling and UIGestureRecognizer. I also have a bunch of sample code up on github that might help.

How to trigger tap gesture recognizer of UIView programmatically

I solved this by creating fake touches. Triggering gesture was not possible as gestures does not expose its action and selector. But as I have UIView on which I want to tap. I can create a fake touch on that UIView. This fake touch will automatically trigger the tap gesture. This link was very helpful for this.

Why isn't my gesture recognizer working when I programmatically create it?

It looks like you can't create a target action referencing self at initialization time of a class where self isn't available yet. I'm not sure why there's not a warning or error for this.

There are two possible workarounds:

Although it's missing from the UIGestureRecognizer documentation there is a vanilla init method with no parameters. Use that and then call UIGestureRecognizer.addTarget(_:action:) sometime after initialization.
Use a lazy property

private lazy var tapGestureRecognizer: UITapGestureRecognizer = { .init(target: self, action: #selector(myAction)) }()

Programmatically Tap View

Just call genderTapped directly, handing it the gesture recognizer already attached to the desired "button".

For example, if thisGenderButton is the one you want to "tap", say:

if let tap = thisGenderButton.gestureRecognizers?[0] as? UITapGestureRecognizer {
    genderTapped(tap)
}